System Design White Paper & Installation Handbook V3.0 revised January 2015

Transcription

1 System Design White Paper & Installation Handbook V3.0 revised January 2015

2 1. Company Contact Information Procella Audio Svenska AB Sollentuna, Sweden Voice: +46 (8) Web: Procella Audio USA, LLC Venice, CA Voice: +1 (310) (310) Fax: +1 (509) Web: Cover photo courtesy of Erskine Group, Marietta, GA. Photography by Darren Sheely 2

3 Table of Contents BACKGROUND 1. Contact Information 2 2. Procella History and Technology 5 SYSTEM DESIGN 3. System Design Parameters and Considerations 8 Room Design and Acoustic Treatment 8 Listening Distance Main and Surround Speakers 8 Room Volume Subwoofers 9 Recommended Amplifier Power by Speaker Model 10 THX Approval and THX Certified Screening Rooms 10 3D Audio (Dolby Atmos, DTS:X, Auro 3D) Selecting the Proper Procella Speaker Models 12 Screen Channel Speaker 12 Surround Channel Speaker 12 Subwoofer Positioning of Procella Speakers 15 Speaker Setup 15 Recommended Speaker Positioning for Film 16 Screen Channel Speakers 18 Surround Speakers THX Baffle Wall Design and Construction 20 SPEAKER INSTALLATION Please note: some of the information presented here is duplicated from model to model. This section is organized so that the content for each product is self-contained and does not require reference to other parts of this document. 7. P5 Installation Guidelines P6 and P6V Installation Guidelines P6iW Installation Guidelines P8 Installation Guidelines P28 Installation Guidelines P610 Installation Guidelines P815 Installation Guidelines 38 Using P815-FP with the Procella DA-2800 Outboard Amplifier 40 3

4 14. P860 Installation Guidelines P10, P12, P15, P18, P10Si Subwoofer Installation Guidelines 43 Location of the Subwoofer(s) 43 Multiple Subwoofers 44 Using P18-FP, P15-FP, P10-FP with the Procella DA-2800DSP Outboard Amplifier P10Si Installation Guidelines and Balancing Subwoofers Wall Mounting the P6/P6V, P8, and P5 50 Wall Mounting the P5 51 AMPLIFIERS, CONNECTIONS AND CALIBRATION 18. Procella DSP and Amplifier Controls: P815, P10, P15, P18 53 P18, P15 and P10 Subwoofers 54 P815 Main Speaker 54 P12 Subwoofer Procella DA ,800 Watt Four-Channel Power Amplifier 57 DA-2800 DSP Speaker & Subwoofer Amplifier Channel Requirements 57 DA-2800 DSP Speaker Configurations and DSP Presets Cables and Connectors 60 XLR Connector Wiring AC and Grounding Requirements and Troubleshooting Bass Management and Surround Processor Settings 63 TECHNICAL SPECIFICATIONS AND DIMENSIONS 23. Appendix A Product Technical Specifications and Dimensional Information 64 4

5 Background 2. Procella History and Technology DTS Theatre with the very first Procella Audio system Procella Audio was launched in the U.K. in 2006, founded by Anders Uggelberg and Gerben Van Duyl. At that time, Anders was Director of Cinema Technology for DTS Europe, and Gerben was DTS s European Director of Business Development for Consumer Technology. While at DTS, Anders, a THX trained and certified cinema designer with over 300 cinema and professional studio designs to his credit, was asked to design and build a state-of-the art in-house 32 seat preview theater at the DTS Europe headquarters just outside London. Teaming up with Gerben, the goal was to create a theater able to produce reference sound quality for playback of all current and future cinema and home entertainment media, including the upcoming Digital Cinema (DCI) standard, Blu-ray disc and other 24 bit/96khz resolution playback systems. Of particular note was the use of the theater for multi-channel music demonstrations to artists such as Queen and Depeche Mode, in order to persuade them to have their own recordings remixed to 5.1. After taking an exhaustive survey of available speaker systems, the duo determined that no existing system could deliver the requisite high-resolution audio with uniform coverage to all 32 seats. To meet these requirements, Anders designed a new speaker system that became the basis for the current Procella systems. Nimbly balancing the requirements of the cinema and home entertainment sides of DTS audio, Anders design accommodates both with equal capability and prowess. Taking the best elements of cinema speaker design and applying the performance standards and design elements of the best small studio and high-end audio loudspeakers, the Procella system delivers high-resolution audio to each and every seat in the room. Once the design 5

6 Background was finalized, the speakers were installed in the new DTS theatre in the summer of 2005 and continue in operation there today. To say the system was well received would be an understatement. Following the enthusiastic approval of artists, engineers and producers that experienced and used the DTS system in their professional capacity, Anders and Gerben realized the great commercial potential of the speakers, leading to their departure from DTS and the creation of Procella Audio. DTS Theatre with the first Procella speakers in screen baffle wall The original DTS system, which has evolved through several iterations into today s P815, P8 and P18 loudspeakers, established the core principles of all Procella systems: Identical Voice All screen and surround channel speakers are critically timbre matched, providing 'identical voices' around the room, regardless of the number of speakers or Procella models used. High Frequency Compression Drivers Compression drivers are used exclusively for high frequencies because of their wide dynamic range, high output levels and low distortion, particularly when compared to soft-dome tweeters. Constant Directivity Waveguides Each speaker utilizes a Procella-designed waveguide, which, along with carefully selected crossover frequencies, produces constant power response with superior dispersion characteristics and uniform coverage over a large seating area. Advanced Crossover Designs Procella-designed crossovers exhibit flat phase response and ultra-low group delay, with distortionfree air core inductors and polypropylene capacitors for maximum sonic purity. 6

7 Background Digital Signal Processors (DSP) All Procella active speaker models provide DSP control for very detailed fine-tuning of the acoustical result in a variety of room boundary conditions, making for great flexibility in system design and installation. Sealed-Box Cabinets All Procella speakers, including subwoofers, use sealed cabinets for superior transient response and group delay characteristics, as well as extended low-frequency subwoofer response. Dual-Driver Dual-Amp Subwoofers Each Procella main subwoofer uses two identical drivers, each driven by its own amplifier channel, for high efficiency, low distortion and 6 db greater output than a subwoofer using just one driver. 7

8 System Design 3. System Design Parameters and Considerations This section discusses the elements that should be taken into consideration when designing a Procella Audio system. We encourage dealers and system designers to contact us in advance when considering the use of Procella loudspeakers. We are happy to review system plans incorporating Procella loudspeakers and to make suggestions for the appropriate Procella models. Room Design and Acoustic Treatment Room design and acoustic treatment of both purpose-built and existing theater rooms is a complex subject, and we are not going to address it in detail within this document. Systems incorporating Procella Audio loudspeakers will reap an enormous benefit from proper room design and acoustical treatment, so we strongly recommend that room treatment be an integral part of any project s design and budget. Proper room treatment is not just acoustical foam; it involves structural design and a proper understanding of absorption and diffusion, among many other things. One note of guidance: Procella speakers use waveguides, rather than dome tweeters, which means that the off-axis high-frequency energy they produce is much more uniform in frequency response than the off-axis signals produced by most speakers. For acoustical treatment, this enables the use of more diffusion and less absorption than designers typically must use with other speakers, and this can produce better sonic results. For dealers that do not have experience with room design and advanced acoustical room treatment, engaging the services of an experienced acoustical designer can be invaluable. We can refer dealers to designers that are familiar with Procella speakers. Also, subject to the time availability of Procella engineers, we can also provide design services. This service will be provided at a reasonable cost depending on the scope of a given project and the time required. Please contact us for more details. Listening Distance Main and Surround Speakers To start, let s look at some key dimensions in the room where the system will reside. While overall room dimensions are important, the initial consideration should be the distance from the speakers to the listeners seats. This distance is the key factor in determining which loudspeakers should be used for screen and surround channels and how much amplifier power will be needed to achieve the desired playback levels and dynamic range available for each listener. Subwoofer requirements are primarily determined by the overall room dimensions and volume rather than the distance to any given seat, and we will discuss subwoofers separately. The direct sound power level produced by a speaker decreases as the inverse square of the distance from the speaker. Simply put, each time you double the distance from a speaker, in free field, the SPL will decrease by 6 db (reduce the distance by half, and the level increases by 6 db). In rooms with multiple rows of seats, the direct SPL heard in the front row will therefore be higher 8

9 System Design than the SPL heard in the back row. This means that in rooms with multiple rows of seats, consideration should be given to the level that can be achieved in each row. The reference level standard for cinema presentation, as defined by THX, requires each screen channel to individually produce a level of 105 db of direct sound at the listening position. The 105 db level is based on two factors: - all film sound mix facilities worldwide use an identical reference level of 85 db for dialog when mixing soundtracks, and - the maximum channel signal level on digital film soundtracks is +20 db (U.S. standard) and +18 db (European standard) higher than the dialog reference level, which is therefore 105 db U.S. and 103 db European. That means that the creative team working on any film, worldwide, is able to create a soundtrack with playback levels reaching as high as 105 db per channel, with the knowledge that the soundtrack will be reproduced at the same SPL they experienced during the mix, every time the film is screened in a properly calibrated theater. When all channels are playing back at maximum level, the total output is approximately another 5 db, for a total of 110 db! The general rule for professional cinemas is that the sound system should be able to achieve reference level to about 2/3 the depth of the room. This is a good standard for system design in high-performance home cinema systems db is quite loud, and therefore not all clients will require this full capability, particularly when there are room and budget limitations. For example, the client installing a P6 system in an apartment living room is unlikely to have the same expectations as a client building a new, dedicated home cinema room or a professional screening room. These considerations should be explored with the client as the system is being designed. To determine the listening distance, measure from the front baffle of the center channel speaker to the appropriate seat and/or to the 2/3 point of the room depth. The next section of this guide includes a speaker selection chart that identifies the range of listening distances and power requirements that will produce optimal performance with each Procella model used for screen and surround channels. Room Volume - Subwoofers The second primary room dimension is room volume. Room volume is used generally to determine subwoofer requirements, including specific models and (if more than one is necessary or preferred) the total number of subwoofers needed for a system. In many rooms, volume is related to the listening distance from the screen speakers to the seats, but in some cases (such as a large multipurpose room with the theater space at one end) it may not. 9

10 System Design To assist in selecting the correct Procella subwoofer model for each application, we will use cubic volume. The goal is to help determine the minimum number of Procella subwoofer(s) and model appropriate for a room. Room dimensions, acoustics and room treatments will affect subwoofer requirements, sometimes to a great extent, so be aware that there is no universal formula for calculating subwoofer requirements. We strongly recommend using at least the minimum subwoofer recommendation per the Subwoofer chart on page 14, and always encourage the use of multiple subwoofers. Having extra low-end capability will always be welcome, while insufficient bass invariably produces constant listener disappointment. In every case, additional subwoofers can not only produce greater output, but when they are deployed in multiple locations, the consistency of frequency response across the seating area can be improved. For more details and information on choosing the Procella subwoofer for a specific application, see the Subwoofer section on page 13. Recommended Amplifier Power by Speaker Model Five Procella models have onboard amplifier options, meaning that the appropriate amplifier power needed to provide enough headroom for maximum speaker performance is already present. The P610, P28, P8, P6/6V/6iW, P5 and P10Si are passive, as are the FP versions of the amplified speakers, and therefore require an external power amplifier or receiver. We strongly recommend the use of the Procella DA ,800 Watt Four-Channel Power Amplifier for all Procella speakers. See Section 19 on page 57 for more information. In order to achieve the maximum dynamic range, we always recommend using the maximum amount of amplifier power that fits a project s budget. Minimum power ratings are as follows: P5 75 Watts continuous minimum P6/6V/6iW 100 Watts continuous minimum P8 150 Watts continuous minimum P Watts continuous minimum P Watts continuous minimum for HF 250 Watts continuous minimum for LF P815-FP 150 Watts continuous minimum for HF 350 Watts continuous minimum for LF P Watts continuous minimum for HF 900 Watts continuous (300W x 3) for LF P10-FP 350 Watts continuous total (paralleled inputs) or 175 Watts continuous per driver P15-FP 500 Watts continuous total (paralleled inputs) or 250 Watts continuous per driver P18-FP 1500 Watts continuous total (jumpered inputs) or 750W continuous per driver P10Si 250 Watts continuous minimum THX Approval and THX Certified Screening Rooms The P815, P8 and P18 have all earned THX Approval for integration into professional facilities, including THX Approved Screening rooms and pm3 rooms (Professional Multichannel Mixing and Monitoring). Products that receive THX Approval go through a process distinct from products that receive THX Certification. THX Certified products are designed for consumer applications, which 10

11 System Design generally means that they meet THX requirements in rooms that are smaller than the rooms where THX Approved products must perform. THX Approval of the P815, P8 and P18 enables their use in THX Certified Screening Rooms for residential applications, as well as professional facilities. Integrators and clients interested in creating a THX Certified Screening Room using Procella loudspeakers should contact us for more information and assistance. 3D Audio (Dolby Atmos, DTS:X, Auro 3D) At Procella, we have been eagerly anticipating the availability of 3D Audio for the home cinema. This breakthrough technology elevates the cinema experience to a new level of immersion and creates new opportunities for multiple entertainment platforms including music. The fact that three formats have been introduced to the consumer market indicates the depth of interest coming from both the business and pro audio communities. For 3D Audio, all existing Procella speaker models can be used as side and height channels when mounted on side walls. For overhead channels, any Procella loudspeaker can be used when properly mounted, but we recommend in particular two models that have been optimized for use as overhead speakers. Both the P6iW in-wall/in-ceiling speaker and the P5 speaker were designed with overhead mounting for 3D Audio in mind. One of the primary requirements for overhead speakers is wide dispersion, which is essential for proper coverage and timbre-matching to all seats in the listening area. Conventional speakers using dome tweeters have inherent limitations that makes this very difficult. However, because both the P5 and the P6iW utilize circular waveguides for high frequencies, they produce a near-ideal circular dispersion pattern when pointing straight down essentially an 80 degree cone of sound. Following the Procella Identical Voices concept, this means that each listener hears a tonal balance from the overhead speakers nearly identical to all the other speakers in the system. The P8 and P6/P6V speakers have an elliptical waveguide with vertical dispersion narrower than Dolby recommendations. When they are used as overhead speakers, they should be angled towards the listening position. In the case of the P8, its front baffle is angled at 7 degrees, meaning it can be pointed at the listeners even when the speaker s back baffle is mounted flush to the ceiling. Deciding on speaker placement can be rather complicated, because each format has its own recommended layout. So, rather than summarizing the recommendations for each format here, we encourage you to consult the documentation provided by each format creator. For individual system design and speaker placement, feel free to contact us, as always. We are happy to consult with you to get the best result for each system. 11

12 System Design 4. Selecting the Proper Procella Speaker Models The guidelines below show recommendations for Procella speaker as determined by the requirements described above. Screen Channel recommendations are presented on the basis of both listening distance and room depth. Screen Channel Speaker: Selection by Listening Distance (front baffle of center channel speaker to the seat) For THX Reference Level Playback Up to 2 meters (6½ feet) Up to 4 meters (13 feet) Up to 8 meters (26 feet) Up to 16 meters (53 feet) P6, P6V, P6iW P8 (80 Hz crossover), P610 (full-range) P815, P28 P860 For Standard Playback Up to 3 meters (10 feet) P6, P6V, P6iW, P5 (120 Hz crossover) 2 meters to 6 meters (6½ to 20 feet) P8 (80 Hz crossover), P610 (full-range) 5 meters to 12 meters (16½ to 40 feet) P815. P28 7 meters to 24 meters (23 to 80 feet) P860 Screen Channel Speaker: Selection by Room Depth (dimension from front or screen wall to back wall) For Standard Playback Up to 6 meters (20 feet) P6, P6V, P6iW, P5 (120 Hz crossover) 4 meters to 9 meters (13 to 30 feet) P8 (80 Hz crossover), P610 (full-range) 7 meters to 15 meters (20 to 50 feet) P815, P28 10 meters to 24 meters (33 to 80 feet) P860 Surround Channel Speaker: Selection by Screen Channel Speaker and Width of Room P5 Screen Channel speaker P6/6V/6iW Screen Channel speaker Use P5 for all surrounds P6/6V/6iW is optimal P5 can be used as side surrounds where the room is less than 5 meters (15 feet) wide and as back 12

13 System Design surrounds when the front row of seats is less than 5 meters from the back wall With the P8 Screen Channel speaker P8 is optimal P6/6V/6iW can be used as side surrounds when the room is less than 6 meters (20 feet) wide and as back surrounds when the front row of seats is 6 meters (20 feet) or less from the back wall With P610 Screen Channel speaker P6/6V/6iW should be used as side surrounds when the room is less than 6 meters (20 feet) wide and as back surrounds when the front row of seats is 6 meters (20 feet) or less from the back wall P8 should be used as side surrounds when the room is greater than 6 meters (20 feet) wide and as back surrounds when the front row of seats is 6 meters (20 feet) or more from the back wall With P815 Screen Channel speaker P8 is strongly recommended P6/6V/6iW is acceptable as side surrounds when the room is less than 6 meters (20 feet) wide and as back surrounds when the front row of seats is 6 meters (20 feet) or less from back wall With P860 Screen Channel speaker Use P8 for all surrounds. In extremely large rooms, the P28 can be used. Subwoofer: Selection by Room Volume and Room Conditions The P15 is designed to produce +6 db more output than the P10 and P12. The P18 is designed to produce +6 db more output than the P15. The P18 is designed to produce +12 db more output than the P10 and P12. The P10Si is designed to work as a balancing sub in conjunction with P18, P15 or P10 subwoofers and therefore should not be taken into account in determining system low frequency output capability. 13

14 System Design Room Volume These recommendations are for subwoofers in rooms with a medium low frequency reverb time. Understand that these are guidelines, not precise specifications. Room construction, dimensions and acoustics vary considerably from room to room, making it difficult to reduce subwoofer selection to a simple formula. Experience counts; contact us if you have questions. P10 and P12 P15 P18 One subwoofer up to 50m³ (1750 ft³) up to 100m³ (3500 ft³) up to 200m³ (7000 ft³) Two subwoofers up to 100m³ (3500 ft³) up to 200m³ (7000 ft³) up to 400m³ (14000 ft³) Three subwoofers up to 150 m³ (5250 ft³) up to 300m³ (10500 ft³) up to 600m³ (21000 ft³) Four subwoofers up to 300 m³ (10500 ft³) up to 600m³ (21000 ft³) up to 1200m³ (42000ft³) Room Conditions The amount of low frequency loss, absorption and reverb in a given room can affect subwoofer requirements. Rooms with low reverb time and/or low frequency loss will need more subwoofers and rooms with long low frequency reverb times will have greater problems with standing waves and resonances. In general, the smaller the room, the more pronounced the problems. We recommend use of multiple subwoofers when possible, with four properly placed subwoofers typically producing the best ratio of performance to cost. Subwoofer models may be mixed in a room, meaning that P10s can be used as additional balancing subwoofers in combination with P18s or P15s used as the main subwoofer(s). The P10Si balancing subwoofer can be used in combination with any Procella main subwoofer. Some rooms can be considered lossy at low frequencies because of the room design and construction. This can occur in rooms where construction is not rigid, or when rooms have a large number of windows, doors or open walkways. In some cases, lossy rooms produce better bass quality than stiffly constructed rooms, because of reduced room mode effects. However, the loss of bass energy must be compensated for with additional or larger subwoofers. Low frequency absorption, when properly applied through room design and/or acoustical treatments, is desirable as a way to avoid excessive nodes. This can be accomplished through the use of techniques that include bass trapping. This is an area where the guidance of an experienced and knowledgeable acoustician can be very beneficial. When adding low frequency absorption to a room, bear in mind that the overall low frequency energy in the room will be reduced. This may change the total subwoofer requirement and should be considered when determining the models and quantities of subwoofers that you will use. 14

15 System Design 5. Positioning of Procella Speakers Careful attention to optimal room positioning will help ensure maximum performance from Procella speakers. This attention should be paid in the earliest stages of the system design process, well in advance of the actual installation. Here, we will first discuss location of the speakers in the room, using cinema design guidelines and recommendations from Dolby and THX. While the ideal theater environment is a purpose-built room, for most installations the location of speakers will be dictated by room structure and/or the owner s preference. As a general guideline, Procella speakers should be placed in locations as close as possible to the ideal ones discussed here. With the exception of the P6iW and the P5, Procella speakers are designed for a vertical orientation and should always be mounted accordingly. Procella s constant directivity characteristics are optimized for this orientation. The cabinet should be placed with the tweeter above the woofer except in very rare instances (please consult us before doing this), and the P8 and P6 should never be oriented on their sides. The P6iW and P5 use a circular waveguide that produces a symmetrical horizontal and vertical radiation pattern, and therefore can be oriented either horizontally (wide) or vertically (tall). This circular radiation pattern is ideal for overhead speaker use in 3D Audio systems, so the P6iW and P5 are highly recommended for this application. Because the P860, P815 and P610 use separate cabinets for low and high frequencies, it is acceptable to place those cabinets side by side, as long as the separation is less than half a meter. Speaker Setup Our speaker setup recommendations follow cinema industry practices as used for playback in firstrun cinemas and in the professional dubbing stages where film soundtracks are created by mixers and sound designers. Some mixers of multichannel music content use an alternate setup, which we will discuss first for comparison s sake and to provide an option for those that may have a preference or need for this setup. Speaker Layout for Multichannel Music: the ITU-R BS Standard The speaker configuration for the mixing of multichannel music recordings is often different from the configuration used for film sound mixing. We ll review the typical configuration for music mixing here to give you some perspective and understanding of the differences. Music mixers often set up their speakers so that the mix position is an equal distance from every loudspeaker, with only one speaker used for each channel. As this is only possible for one seat and one listener, this condition typically exists only in recording studios and specially configured rooms. Film mixers, however, work with arrays of surround speakers, as in the typical cinema. There is a recommended standard for music mixing, known as the ITU-R BS Standard for multichannel stereophonic sound systems with and without picture. 15

16 System Design Many professional recording facilities, primarily in the music field, use this standard for loudspeaker placement. The speakers are placed at an equal distance from the mix position, with the center speaker directly in front of the listener and the left and right speakers placed at 30 degrees to either side of the center. Shown here for multichannel playback, this 30 degree spacing between left and right speakers is common for monitoring of two channel material as well. The surround speakers are placed at an angle of 110 degrees to the center, although a range from 100 to 120 degrees is acceptable. In home systems, the need to have speakers equidistant from the listening position is also not critical, as surround processors and receivers have time delays that provide for coincident arrival of sound from all speakers regardless of their distance from the listening position. In any case, there are clear benefits to symmetrical location of loudspeakers. This configuration is generally not used for film sound mixing or playback because it uses a 60 degree wide spacing between the front left and right channels. Typical film sound practice is to use a 45 degree wide spacing between left and right speakers, and this is our recommendation for home cinema playback. In some cases, though, where the primary focus is on music playback, whether two channel or multichannel, the 60 degree spacing may be useful. When a Cinemascope 2.35:1 or wider screen is used, the left and right speakers should be located behind the screen. Keep in mind the 45 degree angle from the listening position to the left and right speakers described above. If the spacing between the left and right speakers is too close to accommodate a narrower screen aspect ratio such as 16:9 or 4:3, the full sonic impact of the widest screen format will be diluted. When masking is used for narrower screen sizes, it is very important that the masking be acoustically transparent. Recommended Speaker Positioning for Film The speaker setup for film sound in home cinemas and screening rooms places the speakers at different angles to the listening position than the multichannel music configuration. The layout 16

17 System Design shown at right shows the range of recommended speaker angles for 5.1 and 7.1 channel configurations. These recommendations incorporate the guidelines promulgated by Dolby Laboratories and THX. Starting with the center channel at the 0 degree position, the left and right channel speakers should each be placed at a 22.5 degree angle to the left and right, respectively, which forms a total 45 degree angle between the speakers at the listening position. The diagram shows an acceptable range of 22 to 30 degrees. While we recommend the 22.5 degree position for film playback, the diagram shows the 30 degree options to illustrate the positions typically used for music playback, either in stereo or in the ITU-R BS Standard setup described above. The side surround speakers are shown at a minimum of 90 degrees from the listening position for a 5.1 channel system where these are the only surrounds. The acceptable range is between 90 and 110 degrees. THX recommends positioning the speakers between 90 and 110 degrees, and Dolby recommends they be placed between 100 to 110 degrees. We recommend that the surrounds be placed so that they are just behind the listeners ears, meaning an angle a little greater than 90 degrees. In a 7.1 channel system, the side surrounds should also be located as shown on the layout, with the Dolby recommendation between 90 and 100 degrees, and THX saying that 90 to 110 degrees is acceptable. Again, we recommend an angle a bit greater than 90 degrees. When there are multiple rows of seats, the ideal design is to have a set of side surrounds for each row, with each speaker located just behind the listeners ears (greater than a 90 degree angle), along with a pair on the back wall. If this is not possible, then the side surrounds should be positioned symmetrically along the side wall over the depth of the seating area as measured from the center of the front row to the center of the back row. Placement for the back surrounds in 7.1 channel systems varies according to the application. The adjacent layout at left shows a 60 degree angle between the back surrounds and the main listening position. This location is identical to the 150 degree position shown in the diagram above. This 60 degree spacing is the recommended location for recorded material in discrete 7.1 channel formats such as Dolby TrueHD and DTS Master Audio. For material where the back surround channels are not discrete, when using a THX processor, the back surrounds should be placed close together as indicated in the diagram at right. Since this is not the ideal location for playback of the latest high-resolution audio formats, you will have to decide whether to optimize for legacy film playback or for the current state of the art. We suggest using the 60 degree spacing to provide optimal playback for the highest- 17

18 System Design resolution audio material. Screen Channel Speakers Maximum cinema sonic impact and effectiveness is achieved with an acoustically transparent screen and screen channel speakers mounted behind the screen in a baffle wall. The screen channel speakers are ideally placed where their tweeters are on the same lateral plane. The center channel can be placed at a different height than the right and left speakers, but imaging will be improved when all three speakers are at the same height. When a choice must be made between locating the speakers above or below a screen, the vertical listening window is greater below the speaker than above the speaker. The optimized vertical window for Procella speakers extends from 5 degrees above the high frequency driver to 30 degrees below. This provides excellent sound quality for listeners when the speakers are located behind an acoustically transparent screen at the recommended location of 5/8 of the screen height, which will be above most listeners ears. Any time an acoustically transparent screen is used, a baffle wall should be constructed to mount the speakers. Please see Baffle Wall Design and Construction on page 20 for more information on baffle walls and their construction. A baffle wall can also be used with a solid projection screen or flat panel display device. In this case, the wall surface exposed to the room is covered by fabric, and the front speakers are concealed behind that fabric and not behind the screen. The tradeoff here is that the center channel speaker will have to be located either above or below the screen. While this will shift the image location of the center channel, all of the other benefits of a baffle wall remain. For these installations, we recommend that, where possible, the left and right screen speakers be placed at the same height as the center channel, preferably above the screen or display. This configuration will produce the best imaging. Whenever the speakers are mounted behind a screen or behind fabric used to conceal the speakers, the grilles should be removed from the speakers. Surround Speakers Following the Identical Voice concept and cinema practices, Procella surround speakers are direct radiators. We do not offer or recommend using dipoles or other speaker configurations, as these violate the Identical Voice philosophy and do not meet cinema and music industry recommendations for playback of discrete multichannel film and music sources, which specify use of direct radiator speakers. The ideal system configuration would use identical speakers for all channels. However, as this is often not practical, Procella s Identical Voice concept means that any combination of Procella loudspeakers P860, P815, P610, P28, P8, P6/6V/6iW, or P5 can be used to produce excellent results. For example, P8s perform superbly as surrounds when P860s, P815s, P610s, or P28s are 18

19 System Design used for screen channels, and P6/6V/6iWs are similarly excellent as surrounds with P610, P28, or P8 screen channel speakers. The P5 can be used with P6/6V/6iW or P5 mains, and may also be suitable for use as height channels because of their compact size. See the Recommended Speaker Positioning for Film section on page 16 for more details regarding room location of surround speakers. Typically, they should be mounted at a height about two feet above the listeners heads. When there are multiple side surround speakers, each should be mounted at the same distance from the floor (not ceiling) so that they are at the same relative height for each listener. Always take care to place the speakers so there is sufficient clearance in walkways to avoid the risk of head injury in a darkened room. When there are multiple rows of seats, the ideal setup is to have a set of side surrounds for each row, with each speaker at an angle slightly greater than 90 degrees relative to the row. If this is not possible, then the side surrounds should be positioned symmetrically along the side wall to cover the depth of the seating area as measured from the center of the front row to the center of the back row, with each speaker pointed to the ear height of a listener in the most distant seat in the row just behind the speaker. 19

20 System Design 6. THX Baffle Wall Design and Construction For optimal performance with an acoustically transparent screen, the screen channels and subwoofer(s) should be mounted in a baffle wall. A baffle wall is considered a best practice for commercial cinemas and is a requirement for all THX certified commercial cinemas and professional screening rooms. Proper use of a baffle wall provides the best combination of imaging, speaker efficiency, and impactful cinema sound. Baffle wall installation eliminates frequency response dips caused by reflections off the back and side walls, significantly increases the maximum output capability of the speakers by 6 db equivalent to four times the power, and creates an acoustic image the size of the screen, not the speakers. It also significantly improves tracking of Baffle wall at the Academy Theater in Hollywood, Calif. sonic images and screen images, avoiding the jumps of sound from channel to channel often heard in home cinema systems. Further, the baffle wall eliminates diffraction from speaker cabinet edges, and reduces or eliminates sound reflected back through the screen and from the back wall behind the screen. Framing of baffle wall showing P815s and P18s 20

21 System Design The method described here is generally considered a standard for baffle wall construction. However, we recognize that there are alternate methods practiced by some designers that also produce excellent results. These include (but are not limited to): Segmented walls with one section per screen speaker. They may be connected or separate, and the left and right may be angled to provide a toe-in. This is also an option with curved screens. Curved baffle walls, which provide toe-in and can be used with curved screens. Partial baffle walls that do not span from floor to ceiling can provide many of the benefits. The baffle wall should be constructed on a frame of 2x4s, with at least two layers of gypsum board (sheetrock), and a third top outer layer of a solid sheet material (preferably MDF). It should span from wall to wall and floor to ceiling. Make certain that it is very rigid. The total thickness should be at least 1.5, and the surface layer must be covered with material that is acoustically absorbent and completely black, with an additional thickness of Be sure to acoustically treat the space behind the baffle wall to eliminate resonances. Baffle wall before installation of acoustical absorber treatment Three sources of materials suitable for acoustic treatment of the baffle wall surface are: USA: Owens Corning SelectSound Black Acoustic Board - USA: CertainTeed AcoustaBoard / ToughGard Rigid Liner Board - Europe: Saint-Gobain Ecophon 21

22 System Design Completed Procella baffle wall at CEDIA Expo with wood blocks for screen mounting For each screen speaker, a cutout must be made appropriate for the dimensions of the speaker. The baffle wall cutout dimensions for each Procella model can be found on the individual tech sheets located in Appendix A of this document. For height, the speakers should be located so that their acoustic centers (the line at the lower edge of the waveguide and the top of the grille) are at 5/8 of the distance from the bottom of the screen to the top. Avoid locating the right and left speakers too close to the side walls. Make sure you have the correct locations you won t be able to move the speakers once they are installed! There should also be a cutout for mounting the subwoofer(s), which should be located in the baffle wall and resting on the floor to take advantage of room loading. Do not locate the subwoofer in the center of the baffle wall. It should be offset to one side or the other. If two subwoofers are used, they should be an asymmetrical distance from the center of the baffle wall and from the right and left room walls. Support for the screen speakers must be provided by platforms mounted to the baffle wall frame. These platforms, or shelves, must be absolutely horizontal, have sufficient strength to support the weight of the speakers and have enough solidity to be completely free from vibration and rattles. All screen mounts also need to be secure and rattle and vibration-free. Do not create an enclosure around the speaker only a shelf for it to rest on. Use the provided Procella insulation feet for each speaker, which go between the speaker and the platform/shelf. The subwoofer(s) should also be mounted on Procella insulating feet. 22

23 System Design When the left and right speakers are placed on their platforms, they should be toed-in slightly towards the center line of the room, with a greater angle for small rooms and a lesser angle for large rooms. Make sure you remove the grilles any time that speakers are located behind a screen, and in any case where they will be located behind a fabric wall surface used to conceal the speakers. We also strongly suggest that the speakers be secured to the back wall of the room with heavy-gauge wire or the equivalent. Make certain that the wall opening around the speakers is filled and resilient, meaning that Rear view showing speaker platforms once the speakers are in their final location, the gaps between the speakers and the cutout in the baffle wall should be gasketed with sound absorbing material such as insulation or dense foam. The space does not need to be sealed; just filled. Take care to see that the subwoofer does not cause any rattles by being in contact with the baffle wall, the frame supporting the fabric on the face of the wall, the screen, or any other object. Procella subwoofers generate a lot of energy, so be sure to test for this once everything is in place. You must allow for air circulation and access to the amplifier/control panels when using the P815 and for each subwoofer model. The amplifier panels for all models are located on the left side of the cabinets when viewed from the front. The P815, P18, P15 and P10 also have ventilation holes on the left side of the cabinet, both above and below the amplifier panel. In addition, the P815 and P18 have a quiet temperature-controlled cooling fan that will activate as needed. Alternative to a Baffle Wall When it is not possible or practical to construct a full baffle wall, a less complicated option that provides many of the benefits of a baffle wall can be achieved by flush-mounting the speakers on the existing front wall of the room and treating that wall with the acoustic treatment materials described above. The material should be at least 2 inches and preferably 4 inches deep, and should cover the entire wall with the exception of the speaker front baffles and the screen. The wall can be covered with acoustically transparent fabric to conceal the absorbing material and the speakers. 23

24 Speaker Installation 7. P5 Installation Guidelines The P5 is designed for wall mounting and stand/shelf mounting on or next to a wall. Ideally, the back of the speaker should be one to five inches from the wall. The P5 uses a circular waveguide, which means that the speaker can be oriented either vertically (tall) or horizontally (wide). When the speaker is not flush mounted on a wall, the front left and right speakers can be toed in towards the center of the room for optimal imaging. For the best sound quality, the vertical angle between the location of the tweeter and the listeners ears should be kept to 30 or less above or below ear level. If necessary or desired, the speakers may be mounted so that they tilt vertically. Typically, the speakers should be aimed directly at or slightly above the prime seating location. In large rooms or rooms with a large listening area, the standard is to aim the speaker vertically at a point 2/3 the depth of the seating area. Mounting on a Wall When used with a solid projection screen or flat panel display, the P5 can be placed above or below the screen. Our recommendation is that whenever possible, the speakers should be placed above the screen. While the center channel can be placed at a different height than the right and left speakers, the best sonic imaging occurs when all three speakers are at the same height. Any time the front speakers are not mounted at the same height, the height difference among the speakers should be kept to a minimum. Avoid mounting the speaker so that its woofer is an equal distance from the ceiling and side wall. We recommend the B-Tech BT33 bracket for wall and ceiling mounting of the P5. It attaches to the back panel keyholes for horizontal or vertical mounting. Speaker Stands On stands, the P5 should be positioned about 1 to 5 inches from the back wall. They should typically be set up so that their tweeters are at ear height. When this is not possible because the stand for the left and right speakers would place the center channel in front of the screen, try to keep the differences in height between the center and left/right speakers to a minimum. If the stands allow for vertical adjustment, be sure the tweeters are aimed at the listeners ears. Stands with such adjustability that are relatively short in height would help minimize the height difference between the center and left/right speakers. 24

25 Speaker Installation During installation, check the distances from the speaker to the floor, to the side walls and to the back wall. Each of these distances should be different, preferably by a foot or more, to minimize sharp dips in the speaker s response as heard at the listening position that are caused by half-wave cancellation from early reflections. P5 as a Surround and 3D Audio Height Channel Speaker The P5 can be used as a surround speaker when the P6/6V/6iW, P8 or P28 are used as screen channels, and of course can be used with P5 screen channels for a system with identical speakers for all channels. When used as surrounds, the P5 can be mounted flush to the wall or on brackets, with the tweeter above the woofer. The integral hanging systems is ideal for flush mounting. For details, see the Wall Mounting section on page 50. For 3D Audio system overhead channels, the P5 provides an ideal circular radiation pattern of 80 degrees, due to its circular waveguide. For details on surround speaker location, see the discussions above. Note that the P5 is designed to produce good response at angles up to 30 off the tweeter axis. When the speakers are mounted close to the ceiling, the area above the speaker should be acoustically treated. P5 Crossover to Subwoofer The P5 is not a full-range speaker, so the low frequencies for each channel using a P5 should be redirected to the subwoofer. For the crossover to the subwoofer, a high-pass filter between 80 and 120 Hz with a 12 db/octave Linkwitz-Riley characteristic is ideal. The internal crossover setting for the receiver or processor should be SMALL, with the frequency set to between 80 and 120 Hz. For high power applications, use 120 Hz. The higher the filter (crossover) frequency, the greater the output and dynamic range of the P5. Break-In Period The P5 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 5 hours for the P5. More details on the P5 can be seen in Appendix A at the end of this document.. 25

26 Speaker Installation 8. P6 and P6V Installation Guidelines The P6 and P6V are identical save for their respective cabinet orientations and shape. The original P6 uses a wide cabinet format, and the newer P6V uses a tall cabinet format. Either version can be used to produce the same acoustical performance, with the choice determined according to the design requirements of a given system. For simplicity, we will refer to both versions as P6 in this handbook. Both versions provide users with two mounting options in wall and on wall. We do not recommend mounting the speakers on stands away from walls because they are voiced for wall placement. For screen channel use, the ideal installation condition is mounting in a baffle wall, but the speaker can also be flush mounted on a wall or placed against a wall on speaker stands. The P6 should always be installed so that the tweeter and woofer are vertically oriented, with one above the other as shown in the photos above. When the speaker is not flush mounted on a wall, the front left and right speakers should be toed in towards the center of the room for optimal imaging. For the best sound quality, the vertical angle between the location of the tweeter and the listeners ears should be kept to 30 or less when the speaker is above and 5 or less when the speaker is below ear level. If necessary or desired, the speakers may be mounted so that they tilt vertically. Typically, the speakers should be aimed directly at or slightly above the prime seating location. In large rooms or rooms with a large listening area, the standard is to aim the speaker vertically at a point 2/3 the depth of the seating area. Baffle Wall Mounting the P6 in a baffle wall enables the speaker to produce an additional 6 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as 26

27 Speaker Installation measured from the bottom of the screen. The acoustical center of the P6 is the lower edge of the waveguide. When installing the P6s in a baffle wall, be sure to use the insulation feet. The left and right speakers should be toed-in towards the center of the room. Always remove the grilles when the speakers will be used behind a screen. See the Baffle Wall section on page 20 for detailed instructions and more information. Flush Mounting on a Wall When used with a solid projection screen or flat panel display, the P6 can be placed above or below the screen. Our recommendation is that whenever possible, the speakers should be placed above the screen. While the center channel can be placed at a different height than the right and left speakers, the best sonic imaging occurs when all three speakers are at the same height. Any time the front speakers are not mounted at the same height, the height difference among the speakers should be kept to a minimum. Avoid mounting the speaker so that its woofer is an equal distance from the ceiling and side wall. Speaker Stands If it is necessary to mount the P6 on stands away from a wall, you will need to check the frequency response of the speakers at the listening position and apply any necessary equalization to the low end of the speakers. It will also be useful to set the subwoofer crossover to a higher frequency of 90 or 100 Hz. On stands, the P6 should be positioned about 2.5 to 3.3 feet or 0.8 to 1.0 meters from the back wall. They should typically be set up so that their tweeters are at ear height. When this is not possible because the stand for the left and right speakers would place the center channel in front of the screen, try to keep the differences in height between the center and left/right speakers to a minimum. If the stands allow for vertical adjustment, be sure the tweeters are aimed at the listeners ears. Stands with such adjustability that are relatively short in height would help minimize the height difference between the center and left/right speakers. During installation, check the distances from the speaker to the floor, to the side walls and to the back wall. Each of these distances should be different, preferably by a foot or more, to minimize sharp dips in the speaker s response as heard at the listening position that are caused by half-wave cancellation from early reflections. P6 as a Surround Speaker The P6 can be used as a surround speaker when the P815 or P8 are used as screen channels, and of course can be used with P6 screen channels for a system with identical speakers for all channels. In many cases, such as when the speakers will be concealed in architectural columns, the P6V may be preferred due to its narrower width. When used as surrounds, the P6 should be mounted flush to 27

28 Speaker Installation the wall, with the tweeter above the woofer. The provided bracket is ideal for flush mounting. For details on using this bracket, see the Wall Mounting section on page 50. For details on surround speaker location, see the discussions above. Note that the P6 is designed to produce good response at vertical angles up to 30 below the tweeter. When the speakers are mounted close to the ceiling, the area above the speaker should be acoustically treated. P6 Crossover to Subwoofer The P6 is not a full-range speaker, so the low frequencies for each channel using a P6 should be redirected to the subwoofer. For the crossover to the subwoofer, an 80 Hz high-pass filter with a 12 db/octave Linkwitz-Riley characteristic is ideal. This is the same filter called for in THX specifications, so when using a THX processor or receiver, set the filter/crossover to the THX position. With non-thx components, set the crossover to SMALL, and if you are able to select the frequency, choose 80 Hz. Higher crossover frequencies can also be used if needed. Break-In Period The P6 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 5 hours for the P6. More details on the P6 and the P6V can be seen in Appendix A at the end of this document. 28

29 Speaker Installation 9. P6iW Installation Guidelines Procella s in-wall/in-ceiling speaker gives performance identical to the P6 and P6V in a package that integrates attractively into any room environment. Unlike speakers with molded plastic baffles, the P6iW is constructed of medium density fiberboard and incorporates an integral back box. The only distinction between it and the standard versions of the P6 is that the P6iW circular waveguide is circular rather than elliptical. This 80 circular radiation pattern enables in-wall installation of the speaker with either a vertical or a horizontal orientation. Further, for in-ceiling placement, its circular radiation pattern is ideal (especially for Atmos, DTS:X and Auro 3D overhead speakers), and superior to that of dome tweeters, even when aiming mechanisms are used. Installation of the P6iW The P6iW secures to the wall through a clamping mechanism that uses four spring-loaded wall clamps, one in each of the four corners. The wall cutout size is 17 / 432mm x 11.5 / 292mm. Take care to cut the wall accurately. To install the speaker, first bring the speaker wires through the wall cutout and secure them. They will be attached after the speaker is installed. Set the speaker into the cutout, routing the wires through the cutout at the bottom center of the baffle. Tighten each mounting screw until its mounting clamps expand after being released from the metal housing (see adjacent photo). Once all four are released, secure the speaker by tightening each screw until the clamp engages the back of the drywall. If necessary, the screws can be loosened until the clamps re-engage the metal housing in order to remove the enclosure from the wall. 29

30 Speaker Installation Once the speaker is secure, attach the speaker wires to the large gauge spring-loaded input terminals on the front baffle just above the pass-through. Push any loose wire back through the pass-through. The final step is to attach the speaker grille, which is held in place magnetically. If you are installing the speaker in a ceiling, see Ceiling Mount Precautions below. For ease of service, the drivers and crossover are mounted on a separate removable baffle, secured to the enclosure/back box assembly by 10 screws. If desired, this baffle can be removed after installation of the baffle/back box for safe storage until room construction is complete. L-C-R Channel Use When used with a solid projection screen or flat panel display, the P6iW can be placed above or below the screen. Our recommendation is that whenever possible, the speakers should be placed above the screen. While the center channel can be placed at a different height than the right and left speakers, the best sonic imaging occurs when all three speakers are at the same height. Any time the front speakers are not mounted at the same height, the height difference among the speakers should be kept to a minimum. Avoid mounting the speaker so that its woofer is an equal distance from the ceiling and side wall. Dolby Atmos, DTS:X, Auro 3D: Using the P6iW as a Height Speaker The P6iW was designed with overhead mounting for 3D Audio in mind. Its wide-dispersion, wide dynamic range and high output are ideal for high-performance Atmos, DTS:X and Auro 3D installations. One of the primary requirement for overhead speakers is wide dispersion, which is essential for proper coverage throughout the listening area. Timbre-matching among all speakers in a 3D Audio system is particularly important, meaning that each listener should hear a tonal balance from the overhead speakers as similar as possible to all the other speakers. This requires wide dispersion at high frequencies from the speakers located overhead. The P6iW produces a near-ideal circular dispersion pattern of 80 degrees because its high frequency compression driver is mounted on a circular waveguide that produces an 80 degree cone of sound. Dolby recognizes that many speakers will not meet their recommendations for wide dispersion, and in these cases encourages that the speakers be angled toward the listening positions. The P6iW requires no aiming when it is mounted flush in the ceiling and pointing straight down. Other key requirements for Atmos overhead speakers are to have output and power handling commensurate with the main speakers. Dynamic program material can require high output levels from the overhead channels, and limitations of underperforming speakers will be quickly exposed. The P6iW uses the identical components as the Procella P6 box speaker, making it a 2 meter THX Cinema reference level loudspeaker, equivalent to the Home THX Ultra output requirement when using its 80 Hz subwoofer crossover point. 30

31 Speaker Installation Ceiling Mount Precautions Safety Wire & Grille Whenever a loudspeaker is mounted in a ceiling, safety considerations are paramount. As the installer, you are responsible for making certain that the speaker is secured and that applicable local regulations are complied with. At a minimum, the P6iW must be doubly secured with steel wire safety cables in addition to the standard clamping mechanism. Steel safety wire and eyehooks capable of supporting the 22 lb. / 10 Kg weight of the P6iW are necessary. The wire needs to be run between eyehooks screwed into the P6iW back baffle and a solid connection to a structural frame element above the ceiling. In addition, while the magnets provided to secure the grille are powerful, we recommend adding a couple of small screws to hold the grille in place when the speaker is overhead. One small screw on each side at the center point about 2 / 50mm from the edge of the grille should do it. P6iW as a Surround Speaker The P6iW can be used as a surround speaker when any Procella speaker model is used as the screen channels. For details on surround speaker location, see the discussions above. Note that the P6 is designed to produce good response at vertical and horizontal angles up to 30 from the tweeter. When the speakers are mounted close to the ceiling, the area above the speaker should be acoustically treated. P6iW Crossover to Subwoofer The P6iW is not a full-range speaker, so the low frequencies for each channel using a P6iW should be redirected to the subwoofer. For the crossover to the subwoofer, an 80 Hz high-pass filter with a 12 db/octave Linkwitz-Riley characteristic is ideal. This is the same filter called for in THX specifications, so when using a THX processor or receiver, set the filter/crossover to the THX position. With non-thx components, set the crossover to SMALL, and if you are able to select the frequency, choose 80 Hz. Higher crossover frequencies can also be used if needed. Break-In Period The P6iW will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 5 hours for the P6iW More details on the P6iw can be seen in Appendix A at the end of this document. 31

32 Speaker Installation 10. P8 Installation Guidelines The P8 is designed for baffle wall mounting and flush mounting on a wall. It is not designed for use on speaker stands or away from walls. For screen channel use, a baffle wall is the preferred method of mounting. The P8 should always be installed so that the tweeter and woofer are vertically oriented, with one above the other. When the speaker is not flush mounted on a wall, the front left and right speakers should be toed in towards the center of the room for optimal imaging. For the best sound quality, the vertical angle between the location of the tweeter and the listeners ears should be kept to 30 or less when the speaker is above and 5 or less when the speaker is below ear level. If necessary or desired, the speakers may be mounted so that they tilt vertically. Typically, the speakers should be aimed directly at or slightly above the prime seating location. In large rooms or rooms with a large listening area, the standard is to aim the speaker vertically at a point 2/3 the depth of the seating area. Baffle Wall Mounting the P8 in a baffle wall enables the speaker to produce an additional 6 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as measured from the bottom of the screen. The acoustical center is the lower edge of the waveguide. When installing the P8s in a baffle wall, be sure to use the insulation feet, and always remove the grilles when the speakers will be used behind a screen. The left and right speakers should also be toed-in toward the center of the room. See the Baffle Wall section on page 20 for detailed instructions and more information. Flush Mounting on a Wall When used with a solid projection screen or flat panel display, the P8 can be placed above or below the screen. Our recommendation is that whenever possible, the preferred position is to place speakers above the screen. While the center channel can be placed at a different height than the right and left speakers, the best sonic imaging occurs when all three speakers are at the same height. Any time the front speakers are not mounted at the same height, the height difference among the speakers should be kept to a minimum. Avoid mounting the speaker so that its woofer is an equal distance from the ceiling and side wall. 32

33 Speaker Installation P8 as a Surround Speaker The P8 can be used as a surround speaker with the P860, P815 and P610 screen channel speakers, as well as with P8 screen channels, which would produce a system with identical speakers for all channels. When used as a surround, the P8 should be mounted flush to the wall, with the tweeter above the woofer. The provided bracket is ideal for flush mounting. For details on using this bracket, see the Wall Mounting section on page 50. For details on surround speaker location, see the discussions above. Note that the P8 is designed to produce good response at vertical angles up to 30 below the tweeter. When the speakers are mounted close to the ceiling, the area above the speaker should be acoustically treated. P8 Crossover to Subwoofer The P8 is not a full-range speaker, so the low frequencies for each channel using a P8 should be redirected to the subwoofer. For the crossover to the subwoofer, an 80 Hz high-pass filter with a 12 db/octave Linkwitz-Riley characteristic is ideal. This is the same filter called for in THX specifications, so when using a THX processor or receiver, set the filter/crossover to the THX position. With non-thx components, set the crossover to SMALL, and if you are able to select the frequency, choose 80 Hz. Higher crossover frequencies can also be used if needed. Break-In Period The P8 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 15 hours for the P8. THX Approval The P8 is THX Approved for integration into professional facilities, including THX Approved Screening Rooms and pm3 Rooms (Professional Multichannel Mixing and Monitoring). This enables its use in THX Certified Screening Rooms for residential applications as well. More details on the P8 can be seen in Appendix A at the end of this document. 33

34 Speaker Installation 11. P28 Installation Guidelines The P28 is a high performance, very high output speaker. The P28 is designed for baffle wall mounting and custom wall mounting using a third party or custom bracket. It is not designed for use on speaker stands or away from walls. For screen channel use, a baffle wall is the preferred method of mounting. The P28 should always be installed with a vertical (tall) orientation. When the speaker is not flush mounted on a wall, the front left and right speakers should be toed in towards the center of the room for optimal imaging. The P28 s D Appolito design creates an optimum vertical listening window of 35. For the best sound quality, the vertical angle between the location of the tweeter and the listeners ears should be kept to 15 or less above or below ear level. If necessary or desired, the speakers may be mounted so that they tilt vertically. Typically, the speakers should be aimed directly at or slightly above the prime seating location. In large rooms or rooms with a large listening area, the standard is to aim the speaker vertically at a point 2/3 the depth of the seating area. Baffle Wall Mounting the P28 in a baffle wall enables the speaker to produce an additional 6 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as measured from the bottom of the screen. The acoustical center is the lower edge of the waveguide. When installing the P28s in a baffle wall, be sure to use the insulation feet, and always remove the grilles when the speakers will be used behind a screen. The left and right speakers should also be toed-in toward the center of the room. See the Baffle Wall section on page 20 for detailed instructions and more information. Mounting the P28 There is no mounting bracket provided with the P28. However, there are two M6 threaded inserts located on the back baffle of the loudspeaker that are used to mount the P28 on a Procella V6 to create a Procella P860. These threads are spaced 250mm apart vertically. See the drawing in Appendix A of this document for the exact locations. 34

35 Speaker Installation P28 as a Surround Speaker For very large rooms, the P28 can be used as a surround speaker, typically with the P860, which would produce a system with identical speakers above 80 Hz for all channels. A suitable mounting bracket or custom flush mounting will be required, as we do not provide a mounting bracket with the P28. For details on surround speaker location, see the discussions above. Note that the P28 has limited vertical directivity because of its D Appolito design. P28 Crossover to Subwoofer The P28 is not a full-range speaker, so the low frequencies for each channel using a P28 should be redirected to the subwoofer. For the crossover to the subwoofer, an 80 Hz high-pass filter with a 12 db/octave Linkwitz-Riley characteristic is ideal. This is the same filter called for in THX specifications, so when using a THX processor or receiver, set the filter/crossover to the THX position. With non-thx components, set the crossover to SMALL, and if you are able to select the frequency, choose 80 Hz. Higher crossover frequencies can also be used if needed. Break-In Period The P28 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 15 hours for the P28. More details on the P28 can be found in Appendix A at the end of this document. 35

36 Speaker Installation 12. P610 Installation Guidelines The P610 is a very high performance, high output loudspeaker that will produce reference quality audio in the finest home cinemas. It will typically be used in a baffle wall, behind an acoustically transparent screen. It can also be used as a free-standing speaker, either for home cinema applications, or for high-resolution multichannel or two channel playback. The P610 uses a P6 mid/high frequency module and a P10Si low frequency module. The P6 is a standard Procella P6, securely mounted to the top of the P10Si by a mounting bracket. The bracket allows horizontal rotation of the P6 for toe-in purposes, up to about 20 degrees. Each cabinet has a separate set of binding post inputs for biamplification. The P610 requires two sets of speaker cables to be run from the power amplifier to the loudspeaker. DSP is required for the low frequency/midrange crossover (the midrange/high frequency crossover is passive and built into the upper cabinet). The Procella DA-2800 DSP four-channel amplifier (DSP version) has the necessary DSP crossover settings and is the specified amplifier for the P610. See Section 19 on page 57. In any installation, always use the provided vibration isolation mounting feet under the cabinet. Baffle Wall Mounting the P610 in a baffle wall enables the speaker to produce at least an additional 4 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as measured from the bottom of the screen. The acoustical center is the lower edge of the waveguide on the P6 cabinet (mid/high frequency module). When installing the P610 in a baffle wall, be sure to use the insulation feet, and always remove the grilles when the speakers will be used behind a screen. The P6 top cabinet of the left and right speakers should be toed-in towards the center of the room, and the bracket allows for rotation of the cabinet. See the Baffle Wall section on page 20 for detailed instructions and more information. 36

37 Speaker Installation P610 Full-Range Operation and Crossover to Subwoofer The P610 meets cinema standards as a full-range speaker, with low frequency extension to 45 Hz or below, depending on the installation. Because of this extension below the commonly used 80 Hz crossover point, the speaker is best operated with the processor set to use the FULL-RANGE or LARGE speaker setting for each channel using the P610, with the Subwoofer set to YES or ON. If possible, set the processor so that the low-pass for the subwoofer is below 50 Hz. We do not recommend using an 80 Hz crossover (SMALL speaker setting) or below 80 Hz with the P610. The crossover in most processor/receivers (and all THX components) will not operate correctly, and the mismatch will be audible. In addition to matching the reference configuration of dubbing stages, with full-range speakers, the low frequencies between 40 and 80 Hz radiate from three locations, which improves the soundfield and uniformity of frequency response throughout the room. Distortion is also lower in that range with more drivers operating. You will hear a more coherent and impactful sound from the screen channels. Break-In Period The P610 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 5 hours for the P610. More details on the P610 can be seen in Appendix A at the end of this document. 37

38 Speaker Installation 13. P815 Installation Guidelines The P815 is a very high performance, high output loudspeaker that will produce reference quality audio in the finest home cinemas. It will typically be used in a baffle wall, behind an acoustically transparent screen. It can also be used as a floor standing speaker, either for home cinema applications, or for high-resolution multichannel or two channel playback. Two versions are available. The standard P815 is biamplified with onboard amplification, and the P815-FP requires outboard biamplification with the Procella DA-2800 four-channel amplifier. The P815 uses a P8 mid/high frequency module and a LF815 low frequency module. The P8 is a standard Procella P8, securely mounted to the top of the LF815 by a mounting bracket, and connected with an umbilical cable. There are two mounting brackets options. The vast majority of cases will use the 7 Bracket, which supports the P8 so that its front baffle is perpendicular to the floor. Where the high frequency radiator needs to be angled down to properly aim at the listening area (very large rooms), the 0 Bracket supports the P8 so that it angles downward at a 7 angle (the natural angle of the cabinet). If you do not have the necessary bracket, contact Procella Audio or your distributor. Both bracket versions allow horizontal rotation of the P8 for toe-in, up to about 20 degrees. Other Considerations In installation, take care to insure that there is sufficient space for airflow around the amplifier. The amplifier is located on the left side of the LF815 low frequency module cabinet. Slots on the top and the bottom of the left side of the LF815 cabinet provide the ventilation, and there is a quiet cooling fan located behind the slot filled with foam. It is normal for the amplifier to be rather warm to the touch and for the fan to operate. It is set to start at 60 C and will switch off and on as needed. There is a warning LED that will blink if the amplifier reaches 80 C. Yes, the slots can be used as hand grips to make the cabinets easier to move! Just be careful when using the slot with foam in it, so that you don t dislodge the foam. In any installation, always use the provided vibration isolation mounting feet under the cabinet. 38

39 Speaker Installation Baffle Wall Mounting the P815 in a baffle wall enables the speaker to produce at least an additional 4 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as measured from the bottom of the screen. The acoustical center is the lower edge of the waveguide on the P8 cabinet (mid/high frequency module). When installing the P815s in a baffle wall, be sure to use the insulation feet, and always remove the grilles when the speakers will be used behind a screen. The left and right P8 modules should be toed-in towards the center of the room. See the Baffle Wall section on page 20 for detailed instructions and more information. P815 Full-Range Operation and Crossover to Subwoofer The P815 meets cinema standards as a full-range speaker, with low frequency extension to 40 Hz or below, depending on the installation. Because of this extension below the commonly used 80 Hz crossover point, the speaker is best operated with the processor set to use the FULL-RANGE or LARGE speaker setting for each channel using the P815, with the Subwoofer set to YES or ON. If possible, set the processor so that the low-pass for the subwoofer is below 50 Hz. We do not recommend using an 80 Hz crossover (SMALL speaker setting) or below 80 Hz with the P815. The crossover in most processor/receivers (and all THX components) will not operate correctly, and the mismatch will be audible. In addition to matching the reference configuration of dubbing stages, with full-range speakers, the low frequencies between 40 and 80 Hz radiate from three locations, which improves the soundfield and uniformity of frequency response throughout the room. Distortion is also lower in that range with more drivers operating. You will hear a more coherent and impactful sound from the screen channels. Break-In Period The P815 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 15 hours for the P815. DSP and Level Controls For operation of the P815 s Level and DSP controls, please see the separate Procella DSP and Amplifier Controls section on page

40 Speaker Installation Using the P815-FP with the Procella DA-2800DSP Outboard Amplifier The P815-FP offers a solution for installations where it is desirable to place power amplifiers in the rack and/or to avoid having amplifiers behind a screen. This speaker is identical to the P815, except for the fact it has no onboard amplifiers. The speaker must be used with a Procella DA-2800 DSP power amplifiers, with two sets of speaker cables running from the amplifier to the speaker. The P815-FP can be special ordered from Procella Audio or an authorized distributor. See Section 19 on page 57 for information on the DA-2800DSP, and for system configuration information, see the DA User Guide. THX Approval The P815 is THX Approved for integration into professional facilities, including THX Approved Screening Rooms and pm3 Rooms (Professional Multichannel Mixing and Monitoring). This enables its use in THX Certified Screening Rooms for residential applications as well. More details on the P815 can be seen in Appendix A at the end of this document. 40

41 Speaker Installation 14. P860 Installation Guidelines The P860 is an extremely high performance, extremely high output loudspeaker that will produce reference quality audio in the largest home cinemas, screening rooms and in small to mid-size commercial cinemas. It will typically be used in a baffle wall, behind an acoustically transparent screen. It can also be used as a floor standing speaker when maximum output and resolution are required, whether for home cinema applications or for multichannel and two channel music playback. The P860 uses a P28 mid/high frequency module and a V6 low frequency module. The P28 uses the same compression driver as the P8, adding a second 8 inch woofer in a D Appolito configuration for increased output. The V6 module contains six 10 inch woofers mounted in a push-pull V-configuration that increases output and lowers harmonic distortion. The P28 mounts securely to the V6 enclosure with a mounting bracket that allows the P28 module to be rotated horizontally for toe-in, up to about 20 degrees. Biamplification The P860 must be biamplified with the Procella DA-2800 DSP four-channel power amplifier. The amplifier must be pre-configured for the P860. A complete amplifier (four channels total) is required for each P860. One channel connects directly to the P28 mid/high frequency module, and the remaining three channels connect to the V6 lowfrequency module through three sets of binding posts. This requires four sets of speaker cables running from the amplifier to each P860. See Section 19 on page 57 and the DA-2800 User Guide for the proper preset configuration with the P860. Other Considerations Because of the complexity and expense involved with P860 system projects, we will be happy to provide additional assistance and guidance for both the planning and installation phases of these projects. Please contact us in advance so that we can help to ensure the highest possible performance with this speaker. 41

42 Speaker Installation As with all other Procella speakers, always use the provided vibration isolation mounting feet under the P860/V6 cabinet. Baffle Wall Mounting the P860 in a baffle wall enables the speaker to produce at least an additional 4 db of output at low frequencies. When the speakers are mounted in a baffle wall, behind an acoustically transparent screen, they should be placed so that their acoustical center is at 5/8 of the screen height as measured from the bottom of the screen. The acoustical center is the lower edge of the waveguide on the P28 enclosure (mid/high frequency module). When installing the P860 in a baffle wall, be sure to use the insulation feet, and always remove the grilles when the speakers will be used behind a screen. The left and right P28 modules should be toed-in towards the center of the room. See the Baffle Wall section on page 20 for detailed instructions and more information. P860 Full-Range Operation and Crossover to Subwoofer The P860 meets cinema standards as a full-range speaker, with low frequency extension to 40 Hz or below, depending on the installation. Because of this extension below the commonly used 80 Hz crossover point, the speaker is best operated with the processor set to use the FULL-RANGE or LARGE speaker setting for each channel using the P860, with the Subwoofer set to YES or ON. If possible, set the processor so that the low-pass for the subwoofer is below 50 Hz. We do not recommend using an 80 Hz crossover (SMALL speaker setting) or below 80 Hz with the P860. The crossover in most processor/receivers (and all THX components) will not operate correctly, and the mismatch will be audible. In addition to matching the reference configuration of dubbing stages, with full-range speakers, the low frequencies between 40 and 80 Hz radiate from three locations, which improves the soundfield and uniformity of frequency response throughout the room. Distortion is also lower in that range with more drivers operating. You will hear a more coherent and impactful sound from the screen channels. Break-In Period The P860 will benefit from a break-in period before its first use. Right out of the box, it will not perform to its full potential until it has been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: 15 hours for the P860. More details on the P860 can be seen in Appendix A at the end of this document. 42

43 Speaker Installation 15. Subwoofer Installation Guidelines: P10, P12, P15, P18, P10Si These instructions and recommendations apply to all Procella subwoofer models. Guidelines for selecting the proper model and number of subwoofers to be used in a given system can be found in Selecting the Proper Procella Speaker Models on page 12. If you have additional questions or need more guidance with subwoofer installation, please contact us. We also strongly recommend the use of an experienced acoustical designer when a project s budget allows. Location of the Subwoofer(s) The very shallow depth form factor of Procella subwoofers gives installers a great deal of flexibility in determining where they can be located in a room. To also increase installer flexibility, we have located the input connectors and controls for the P10, P15, and P18 on the left side of the cabinet, enabling installation directly against walls. The P12 input connectors and amplifier controls are recessed on the back panel of the subwoofer, also allowing placement directly against walls. Finding the ideal location for a subwoofer, particularly in smaller rooms, can be a challenge. The greater the number of seats in a room, the greater the challenge. Therefore, experimentation with placement before final installation is highly recommended. Whenever possible, response measurements should be taken at the listening position rather than relying solely on a subjective listening analysis. When there are multiple seats in the room, the goal should be to minimize the variance of response among the seats with subwoofer placement. Optimizing for a single seat will cause a great deal of variation in response in the other seats. For practical and performance reasons, the subwoofer should rest on the floor, placed against or very close to one or more room walls. The front wall is the preferred location. Subwoofers can also be built into a wall. We recommend starting with a single subwoofer against the front wall in an off-center position, either to the left or to the right of the center channel speaker. Generally speaking, it is not a good idea to place a single subwoofer at the center point of the screen or room front wall (or at the center point of any wall). In most rooms, center wall placement will produce significant cancellation of low frequencies due to a null. Placing the subwoofer against the front wall in an off-center position typically produces smoother bass than a center position. In any case, placement against a wall produces increased SPL because this placement allows the subwoofer to couple with the wall, resulting in an extra 3dB of output. Even greater coupling occurs when the subwoofer is moved into a corner, which produces an additional gain of 3dB. It s important to note, however, that the increased output of corner placement comes from driving room modes to the maximum extent, and may not produce the best result. 43

44 Speaker Installation Another placement consideration is room structure. Subwoofer loading improves with the structural solidity of the wall it is placed against, so this should be taken into account when evaluating potential locations. For example, placement against an exterior wall will often give better results than placement against an interior wall. Avoid locations near doors, windows and walkways. Keep in mind a couple of considerations when experimenting with subwoofer placement. The amplified versions of the P10, P12, P15 and P18 Procella subwoofers have controls that optimize the subwoofer s response for the room boundary condition of its location, so you may need to change DSP settings when you move a subwoofer to a different location. See Procella DSP and Amplifier Controls on page 53 for details. Also, remember that when you move a subwoofer closer to or farther away from a wall or a corner, the overall level of the subwoofer will change, which may require an adjustment of the subwoofer output level. Multiple Subwoofers We strongly recommend the use of multiple subwoofers. When a system has multiple seating positions (except in an auditorium-sized space), bass quality and levels will change significantly from seat to seat whenever a single subwoofer is used. This is because of the nature of small room acoustics. A good solution to this problem is to use additional subwoofers to smooth out the room modes, which produces a flatter response and minimizes the differences among the listening positions. Further benefits of multiple subwoofers include more dynamic range and lower distortion for any given playback level. To optimize response among the seats, each subwoofer should be placed in a different location. Generally, when multiple subwoofers are used, they should be placed asymmetrically along the room s boundaries, although there are some computer models for multiple subwoofer configurations that call for symmetrical placement. Because the acoustics of rooms vary so greatly and cannot be modeled in any practical way, it is very difficult at best to predict the best placement for any given room. However, there are a few combinations that you may find useful as a starting point when deploying multiple subwoofers in a room. Two subwoofers - Front and side one subwoofer on the front wall, between the center and either the right or the left speakers, and the other on either side wall, at a different distance from the front wall as the first subwoofer is from the side walls. - Front and back one subwoofer centered on front wall and the second centered on the back wall. This technique can also be used with each woofer centered on a side wall. Four subwoofers - Midpoints each subwoofer is located at the midpoint of a wall, with the main subwoofer against the front wall. The main subwoofer can also be offset from the center position. 44

45 Speaker Installation - Corners each subwoofer is located in a corner. Requires a room with four corners and no adjacent doors. For additional guidance, please contact us or an experienced acoustician. When using more than one subwoofer, it is acceptable to use a larger model (say, the P18) as the main subwoofer and smaller models (P15, P12, P10 or P10Si) in the secondary or balancing locations. The P10Si was specifically created for use as a balancing subwoofer, designed with a compact enclosure size that facilitates both placement and concealment. See the section below for a more detailed discussion of the P10Si and its use. There is an alternate potential benefit to using more than one subwoofer. When the goal is to achieve the greatest efficiency and maximum output, you can place the subwoofers in close proximity. The subwoofers outputs will couple, resulting in a total of 3 db more output than they would produce when placed in separate room locations. When using this technique, to avoid buzzing or other undesirable noises, do not allow the cabinets to contact each other unless they are securely connected. Bear in mind that placing the subwoofers in the same room location will not provide the response smoothing benefit discussed above where multiple subwoofers are placed in different locations. Baffle Wall An excellent location for the main subwoofer(s) is in a baffle wall. This produces the same 3 db coupling gain that exists with placement against a wall. Additional subwoofers may be located in other parts of the room, but when a baffle wall is used, the main subwoofer(s) should always be located in the baffle wall. When installing the subwoofer in a baffle wall, be sure to use the insulation feet under the cabinet. Always remove the grilles when any Procella speaker will be used behind a screen. See Baffle Wall on page 20 for detailed instructions and more information. Subwoofer Crossover There is no crossover or low-pass filter built into Procella subwoofers, so the input signal must be low-pass filtered in the processor, preamp or external DSP/electronic crossover. The crossover frequency depends on the main and surround speakers being used, but will typically be 80 Hz. 80 Hz is the correct frequency for the P6/6V/6iW and the P8. The compact P5 can use a higher crossover frequency up to 120 Hz for high power applications. For the full-range P815 and P610, a crossover is not necessary. If a crossover is used, the frequency should be no lower than 40 or 45 Hz. The low-pass filter should have a 24 db/octave Linkwitz-Riley characteristic. Always use a single common bass channel to feed all subwoofers. Do not use a stereo bass configuration with separate left and right subwoofers or feed a subwoofer with only the surround channel bass content. Doing so will eliminate most of the benefits of multiple subwoofers discussed 45

46 Speaker Installation above and will produce inconsistent and unpredictable results, including a different frequency response for each subwoofer as heard and measured from each seat in the room. Other Considerations The standard version of each Procella active subwoofer has an onboard power amplifier, which is located on the left side of the amplifier cabinet (as viewed from the front). Also available are the P18-FP, P15-FP, and P10-FP, and V6, which require outboard amplification using the Procella DA four-channel power amplifier. The P12 is available only in an amplified version. See more information on the FP versions on the next page. For the standard onboard amplifier versions, take care in installation to insure that there is sufficient space for airflow around the amplifier. For ventilation, there are cutouts located near the top and the bottom of the left side of the cabinet. In addition, the P18 has a quiet cooling fan, which is located behind the cutout filled with foam. It is normal for the amplifier to be rather warm to the touch and for the fan to operate. It is set to start at 60 C and will switch off and on as needed. There is a warning LED that will blink if the amp reaches 80 C. The cutouts can be also used as hand grips when you need to move the cabinet! When moving the P18, be aware that one of the cutouts is loaded with foam. Take care not to dislodge that foam. And be extremely careful when moving subwoofers the P12 is about 50 lbs., the P10 is about 60 lbs., the P15 is about 90 lbs., and the P18 is 220 lbs.! In any installation, always use the provided vibration isolation mounting feet under the cabinet. Removing the grille on the P10, P12, P15, and P18 will eliminate any possibility of audible resonance from the grille or grille fabric and is highly recommended, especially for the P15 and P18. Break-In Procella subwoofers will benefit from a break-in period before their first use. Right out of the box, they will not perform to their full potential until they have been operated for a period of time. Tonal balance, clarity, sensitivity and output will all improve after several hours of playing program material or pink noise test signals. If possible, the break in should be for a continuous period at SPL in excess of 75 db. Recommended minimum break-in time: P10, P10Si, P12 and P15 10 hours P18 20 hours DSP and Level Controls For operation of the Level and DSP controls for each subwoofer, please see the Procella DSP and Amplifier Controls section on page

47 Speaker Installation Using P18-FP, P15-FP, P10-FP with the Procella DA-2800DSP Outboard Amplifier The FP versions of the P18, P15 and P10 offer a solution for installations where it is desirable to place power amplifiers in the rack and/or to avoid having amplifiers behind a screen or wall. These subwoofers are identical to the standard versions, except for the fact they have no onboard amplifiers. These subwoofers can be used with a Procella DA-2800 DSP power amplifier, and two sets of speaker cables must be run from the amplifier location to each subwoofer. See Section 19 on page 57 for information on the DA-2800DSP, and for system configuration information, see the DA-2800 User Guide. To use the FP subwoofers with a non-procella amplifier, DSP is required to produce the proper frequency response of the subwoofer. Contact us for specific guidance for these installations. The P12 is available only with an onboard amplifier and cannot be used with the DA P18 THX Approval The P18 is THX Approved for integration into professional facilities, including THX Approved Screening Rooms and pm3 Rooms (Professional Multichannel Mixing and Monitoring). This enables its use in THX Certified Screening Rooms for residential applications as well. More details on the P10, P12, P15, and P18 can be seen in Appendix A at the end of this document. 47

48 Speaker Installation 16. P10Si and Balancing Subwoofers As discussed above, in screening rooms and home cinemas with multiple seats and a single subwoofer, the frequency response and SPL at low frequencies will vary, often significantly, from seat to seat. To tame low frequency room modes and provide more consistent bass response throughout the listening area, multiple subwoofers can be used, with each placed in a separate room location. When done properly, this can greatly improve the overall listening experience and can enable further improvement by making the use of single-channel low-frequency equalization possible. The P10Si is designed to facilitate the usage of multiple subwoofers to produce more consistent bass performance. Using a single 10 inch driver in a small footprint cabinet that can be used in either a horizontal or a vertical orientation, the P10Si has the capability to improve low frequency performance when used in combination with any of Procella s larger subwoofers, including the P10, P15 and P18. When one or more of these Procella subwoofers is used as a main subwoofer, multiple P10Si subwoofers (typically one to three) can be placed in different room locations to smooth the low frequency modes of the room. See the Multiple Subwoofers section above for a discussion of methods of determining where the additional subwoofers should be located. The P10Si is a passive subwoofer. Unlike the other Procella subs, there is no onboard amplifier option. A single pair of speaker cables must be run from a remote amplifier to each location where a P10Si will be placed. The recommended amplifier power is a minimum of 200 watts at 8 ohms, with 350 watts preferred. The Procella DA-2800 DSP four-channel power amplifier (DSP version) is recommended for use with single and multiple P10Si subwoofers. See Section 19 on page 57 for more information. Once the variance of response among the seats has been minimized, the use of a single channel of equalization applied to the main subwoofer channel becomes possible. Without balancing subwoofers, the seat-to-seat variation is typically too great to be accurately compensated for with a single EQ channel. 48

49 Speaker Installation Of course, if time and budget allow, individual EQ can be applied to each subwoofer before the final EQ is applied to the single subwoofer channel, but this sophisticated approach requires a great deal of calibration time and multiple additional channels of DSP. While there is no upper limit of the number of subwoofers that can be used in a system (aside from the obvious space and budget considerations), experience has shown that once there are four subwoofer locations (two subwoofers in the screen wall would be considered as one location in this case), the incremental benefit of additional subwoofers decreases quickly. More details on the P10Si can be seen in Appendix A at the end of this document. 49

50 Speaker Installation 17. Wall Mounting of the P6, P6V, P8, and P5 P6/P6V and P8 The Procella P6, P6V and P8 are provided with a wall mounting bracket. This bracket is secured to the wall through three 3/16 (4.8mm/R3) mounting holes. The mounting hardware is not provided, so you ll need three #8 screws for each speaker. The type of screw will be dependent on wall construction. No hardware is necessary to attach the speaker to the bracket the bracket fits into a slot in the back baffle of the speaker. Secure the bracket to the wall using the center hole first to help ensure that you mount the bracket absolutely level! NOTE: the photo below is of the two-hole version of the bracket. The current version has a third center hole as shown in the drawing. For post-construction installation in existing timber or metal framed rooms, we strongly recommend that one of the bracket mounting screws be attached to a wall stud. The slot in the back of the speaker is a couple of inches wider than the bracket, so once the bracket is in place, you have a bit of play to establish the final lateral location of the speaker. This should help you to find a stud for one mounting screw. For new construction, make certain that solid blocking is attached to the wall frame at each speaker location so that both mounting screws can be driven directly into wood. Whenever possible, it s best to avoid the use of drywall inserts. The bracket should be attached to the wall so that the angled flange points up towards the ceiling. For both the P6/6V and the P8, there must be a 1 (2.5 cm) space above the speaker so that the speaker can be lifted above the bracket in order to engage the bracket into the slot on the back of the speaker cabinet. 50

51 Speaker Installation Before attaching the speaker to the bracket, attach the four provided silicone damping spacers to the speaker. One should be mounted on each corner of the back baffle. These spacers reduce unwanted vibration transmission and provide spacing for the speaker cable. The cable outlet in the wall behind the speaker should be located within the area of the recessed connector cup on the back of the speaker. The cup is in the same relative location on both the P6 and the P8 centered 4 (100mm) from the left edge and 3 (75mm) from the top edge of the speaker cabinet. The P6V cup is centered from left to right and 3.1 (80mm) from the bottom edge of the speaker cabinet. The Product Tech Sheets in Appendix A detail the location of both the mounting slot and the connector cup for all models. To attach the speaker, simply lower the speaker so that the flange engages the slot in the back of the speaker. Make sure that the flange is fully engaged in the slot and that the bottom of the speaker is in contact with the wall surface, and that there is no risk that the loudspeaker can be pushed from below up and off the bracket. If there is any doubt, take additional steps to secure the speaker so it cannot be pushed upwards. For the P6, the center line of the bracket holes is 55mm (2.17 ) below the acoustical center of the loudspeaker (bottom edge of the waveguide). For the P6V, the center line of the bracket holes is 15mm (.59 ) above the acoustical center of the loudspeaker (bottom edge of the waveguide). For the P8, the center line of the bracket holes is 15mm (.59 ) above the acoustical center of the loudspeaker (bottom edge of the waveguide). Allow for a variation of up to 3mm on these dimensions due to variation in the screws used and the actual bracket mounting. When mounting the P6 or the P8 behind an acoustically transparent screen, the acoustical center (bottom edge of the waveguide) should be at a height 5/8 of the distance from the bottom of the screen to the top of the screen. P5 Wall Mounting The back baffle of the P5 has two integral keyhole mounts. One is provided for horizontal mounting of the speaker and the other is provided for vertical mounting of the speaker. One of these will be used to hang the speaker on a single mounting screw. A stud mount is always preferred, but when necessary a wall insert can be used as long as it is capable of handling the 10 lb./4.5 Kg weight of the P5. Before attaching the speaker to the bracket, attach the four provided silicone damping spacers to the speaker. One should be mounted on each corner of the back baffle. These spacers reduce unwanted vibration transmission and provide spacing for the speaker cable. 51

52 Speaker Installation The cable outlet in the wall behind the speaker should be located within the area of the recessed connector cup on the back of the speaker. See the adjacent drawing or the P5 Tech Sheet in Appendix A for the exact location of mounting slot and the connector cup. The recessed part of the cup is 70mm (2.76 ) wide and located 45mm (1.77 ) from the left side of the back baffle and 55mm (2.17 ) from the right side of the back baffle. For vertical (tall) mounting, the mounting screw location is the center of the cabinet, 53mm (2.09 ) from the top of the cabinet. For horizontal (wide) mounting, the mounting screw location is 144mm (5.67 ) from the left side of the cabinet (woofer side) and 38mm (1.5 ) from the top of the cabinet. To attach the speaker, simply lower the speaker so that the mounting screw engages the slot in the back of the speaker. Make sure that the screw is fully engaged in the slot and that the bottom of the speaker is in contact with the wall surface, and that there is no risk that the loudspeaker can be pushed from below up and off the bracket. If there is any doubt, take additional steps to secure the speaker so it cannot be pushed upwards. For mounting with an adjustable bracket, we recommend the B-Tech BT33 bracket ( If you have difficulty finding this bracket, please contact us. This bracket can be used for both wall and ceiling mounts. For wall mounting, the bracket attaches to the appropriate keyhole mount on the back of the speaker. For ceiling mounts, use one screw attached to the keyhole and a second screw into the back baffle of the speaker. When mounting the P5 behind an acoustically transparent screen, the acoustical center (bottom edge of the waveguide) should be at a height 5/8 of the distance from the bottom of the screen to the top of the screen. 52

53 Amplifiers, Connections and Calibration 18. Procella DSP and Amplifier Controls: P815, P10, P12, P15, P18 All Procella active loudspeakers have built-in DSP control to optimize performance, based on speaker placement in the room. Any loudspeaker s response at mid to low frequencies will be affected by its proximity to room surfaces. Generally, as a speaker is moved closer a room surface such as a wall, ceiling or the floor, the total low frequency energy produced by that speaker increases. This takes place due to acoustical coupling effects and reinforcement by the room s surfaces. Because the location of a speaker in any given room cannot be predicted, Procella s DSP control tunes the response of the speaker for optimal performance under several room boundary conditions. These products have DSP control: Subwoofers P18 P15 P10 P12 Main Speaker P815 The P10, P15, P18 and P815 have the same amplifier interface, which is described below. The P12 uses a different amplifier platform with a different set of controls. See page xx for P12 amplifier information. Operation (P10, P15, P18, P815) Located on the control panel of each amplifier is a button labeled Preset Select. Adjacent to the button are four green LEDs, each labeled with a number that identifies a preset. Preset 4 is at the top and Preset 1 is at the bottom of the stack. To change the preset, press the Preset Select button located between the XLR jacks. Each press of the button advances to the next numbered preset. The active preset is identified by an illuminated LED. NOTE: These presets are for the onboard amplifiers only. They do not apply to the DA-2800 DSP power amplifier. 53

54 Amplifiers, Connections and Calibration P18, P15 and P10 Subwoofers The presets for the P10, P15 and P18 subwoofers have identical functions, although the actual DSP is tuned for the actual performance of each subwoofer. This chart lists each preset and the installation condition for which each should be used. Each press of the button advances to the next preset. Preset P18, P15 and P10 Installation Condition 4 Free standing on the floor and away from all walls and corners. 3 Flush mounted in a loudspeaker baffle wall, where the front surface of the subwoofer should be flush with the surface of the baffle wall. 2 Positioned on the floor and against any wall (front, side, or back). 1 Positioned on the floor and in a corner. Amplifier Level Control The Gain control on the amplifier level sets the subwoofer level. The Default setting of 0 is equivalent to 4 db, and is at the 12 o clock position. The Default position should be used when calibrating the system. The minimum position produces no output from the subwoofer, and the maximum position is 6 db greater than the Default 0 position. P815 Main Speaker The P815 s DSP controls are also used to properly tune the speaker for the boundary conditions of its installed location. As with the subwoofers, each press of the button advances to the next preset. Preset P815 Installation Condition 4 Mounted in a baffle wall, behind a Stewart Filmscreen Microperf screen. This preset provides compensation for the high-frequency losses of the screen. 3 Mounted in a baffle wall, behind an acoustically transparent screen or when no screen is present. Use this preset when the speaker is flush against the front wall. 2 Free standing, away from walls in a large room. The speaker should be greater than 4 feet from the wall. This position provides a +3 db bass lift. 1 Free standing, away from walls in a small or medium size room. The speaker should be greater than 4 feet from the wall. This position does not have any bass lift. Amplifier Level Control The Gain control on the amplifier level sets the level of the P815. The Default setting of 0 is equivalent to 4 db, and is at the 12 o clock position. The Default position should be used when 54

55 Amplifiers, Connections and Calibration calibrating the system. The minimum position produces no output from the speaker, and the maximum position is 6 db greater than the Default 0 position. Amplifier Temperature (all AMP models) It is normal for Procella amplifiers to be rather warm to the touch, even when the amplifier is operating at low power levels. The very high power P815 and P18 amplifiers have low-noise internal cooling fans, and it is normal for these fans to operate. They will start at 60 C and will switch off and on as needed. For all models, there is a warning LED that will blink if the amp reaches 80 C. P12 Subwoofer Operation The P12 uses a different amplifier than the P18, P15, and P10-AMP subwoofers. Its amplifier is located on a recessed panel on the back baffle of the subwoofer. This allows for input and power cable attachment even with the subwoofer set flush against the wall. Either unbalanced RCA or balanced XLR input cables can be used with the P12. When it is used with a preamp or processor with an unbalanced output, we recommend that a shielded 2-wire cable with XLR connectors be used in combination with an RCA-XLR adapter at the preamplifier end. This will produce the lowest noise level and best sound quality. An unbalanced RCA output connector is provided for linking to additional P12 subwoofers. The Procella P12 is designed for use with a 4th order Linkwitz-Riley, low pass crossover at Hz. The proper frequency depends on the main speakers used and the desired playback levels. With the Procella P5, use 120 Hz. For the Procella P6/P6V, Procella P8, and larger speakers, the THX setting in the processor (if available) will give the correct characteristics at 80Hz. Rear Panel Controls and Functions The P12 controls and their functions are described below. See the drawing on page 56 for locations. Gain The Gain control sets the subwoofer output level. For reference, the default 0 db reference is -4dB. When setting subwoofer levels through a preamp or processor, the Gain control should be set to 0. Polarity or Phase The Polarity switch is used to match the polarity of the Procella P12 to the L-C-R speakers at the listening position. This is important because of variables in the system such as the pre-amplifier, crossover slopes and, especially, room position of both the main speakers and the subwoofer. 55

56 Amplifiers, Connections and Calibration Without test equipment, you can perform a simple test that requires a listener seated at the main listening position and a partner located at the subwoofer. Select and play through the full system a music source with prominent mid-bass content. As it plays, the partner should flip the Polarity switch when instructed to by the listener. The listener should listen carefully for changes in the mid-bass level. The switch position that produces the greatest bass output is the correct setting. Speaker Position Optimizes response for room boundary conditions at the location of the subwoofer. Use the appropriate preset for the location in your room. WALL CORNER Positioned on the floor and against a wall. Positioned on the floor, against a wall and close to a corner. Power ON AUTO SET POWER Subwoofer fully ON. Standby model. Subwoofer switches on when signal is present. The STANDBY LED illuminates when in STANDBY mode. See Auto Setup below. There is also a Master Power switch located on the input panel below. Auto Setup When selected, AUTO powers up the subwoofer only when a signal is present. Because it detects the residual noise level of the preamp/processor, the circuit needs to be calibrated before use. Once the input cable is connected between the subwoofer and the preamp/processor, do the following. Set the power switch on the preamp/processor to ON (or out of Standby), with no source playing. Then, on the subwoofer, move the switch to Set. The P12 STANDBY LED will start blinking rapidly. When the LED blinking rate slows down, move the switch to AUTO. You can confirm that you have the correct setting by playing any disc and verifying that the STANDBY LED switches to Green when the material starts playing. If the LED turns green without any source playing, check your installation and cable routing for AC mains or signal interference. 56

57 Amplifiers, Connections and Calibration 19. Procella DA ,800 Watt Four-Channel Power Amplifier The Procella DA ,800 Watt Four-Channel Power Amplifier is a highly versatile very highperformance professional amplifier designed to optimize the performance of any Procella Audio speaker system. It is highly recommended for any Procella installation, and can be used with any Procella model, including all subwoofers. There are three versions of the amplifier: The DA-2800 DSP provides selectable DSP EQ presets for the P815, P18, P15, P10 and P10Si, as well as active DSP crossover settings for the P815 and P610. The DA-2800 DSP / P860 is specially programmed for use with the P860. One amplifier is required for each loudspeaker. The DA-2800 non-dsp version is available for system applications and individual channels that do not require DSP. Additional detailed information on the DA-2800 is provided in the DA-2800 User Guide. Please refer to this document when installing the amplifier. DA-2800 as an Outboard Amplifier with the P815, P18, P15 and P10 The DA-2800 DSP enables users to have outboard amplification for the P815, P18, P15 and P10. In systems where it is desirable to place the amplifiers in the rack, or to avoid having amplifiers behind a screen or wall, this is a highly useful option. The P815-FP, P18-FP, P15-FP and P10-FP speakers are designed to be used with the DA-2800 DSP. They are identical to the standard versions of the speakers except for the fact they have no onboard amplifier. These speakers can be special ordered from Procella or an authorized distributor. For configuration information, see the DA-2800 User Guide. DA-2800 DSP Speaker & Subwoofer Amplifier Channel Requirements Note: when two amplifier channels are bridged, one amplifier input is linked to both channels. P5 P6/6V/6iW P8 P610 P815 P860 P10Si P10 P15 P18 1 amplifier channel 1 amplifier channel 1 amplifier channel 2 amplifier channels (1 ch. LF, 1 ch. Mid/HF) with DSP preset for biamplification 3 amplifier channels (1 bridged pair LF, 1 ch. Mid/HF) and DSP preset for biamping 4 amplifier channels (3 ch. LF, 1 ch. Mid/HF) and DSP presets for biamplification 1 amplifier channel and DSP preset required 1 amplifier channel and DSP preset required 1 amplifier channel and DSP preset required 4 amplifier channels (2 bridged pairs) and DSP preset required 57

58 Amplifiers, Connections and Calibration Procella Loudspeaker Programming (DA-2800 DSP only) Located on the back panel of the DA-2800 are two buttons labeled PRESET, each with four adjacent LED indicators. The layout is shown at left. These PRESET settings are used to configure the amplifier for the loudspeakers with which it will be used. Each time a button is pressed, it advances the DSP setting to the next preset. The active preset is indicated by the illuminated LED. The right Preset button (Preset 1) controls Channels 1 and 2, and the left Preset (Preset 2) button controls Channels 3 and 4. Each of these presets is pre-programmed with DSP settings customized for Procella loudspeakers. The standard DA-2800 DSP has presets to cover virtually all applications using Procella loudspeakers. The P860 requires a custom version of the DA-2800 DSP, which should be ordered along with the loudspeakers. If a unique custom configuration is required, please contact Procella Audio to place a special order. Please contact your Procella dealer or distributor for more information. The charts on the next page show the standard DA-2800DSP Preset configurations with the correct settings for each speaker model. In some cases, such as with the P815-FP, one or two amplifier channels are available to drive either speakers (P6/6V/6iW or P8), or subwoofers (P10 and P15). These additional options are shown on the charts. DA-2800 DSP Speaker Configurations and DSP Presets CAUTION: Use these presets ONLY with the specific speakers designated in the charts below. Use of the wrong preset can cause high levels of distortion and result in speaker damage that is not covered by warranty. These instructions apply only to the DA-2800DSP. For the P860, a specially programmed DA-2800DSP must be used. Contact Procella for details. On the charts: PRESET identifies which numbered PRESET on the back panel of the amplifier should be selected. PRESET 1 is on the right (Ch.1/Ch.2) and PRESET 2 is on the left (Ch.3/Ch.4). LINK shows the correct setting for the LINK switch on the back panel of the amplifier, and if the Link cable is needed, which Inputs it should connect. INPUT identifies the correct input to be used and which inputs are not used. OUTPUT identifies which output should be connected to each speaker. 58

59 Amplifiers, Connections and Calibration DA-2800DSP Speaker Configurations and DSP Presets P18-FP (1 subwoofer) P815-FP (1 speaker) AND 1 P15-FP or 1 P10-FP P610 (2 speakers) PRESET 1 (Right) PRESET 2 (Left) Connect Link Cable? Input 2 to Input 3 Input 2 to Input 3 No LINK Ch.1+Ch.2 On On On LINK Ch.3+Ch.4 On Off On INPUT Ch. 1 P18 P815 P610 (A) INPUT Ch. 2 Link cable to 3 Link cable to 3 not used INPUT Ch. 3 Link cable to 2 Link cable to 2 P610 (B) INPUT Ch. 4 not used P15-FP or P10-FP not used OUTPUT Ch. 1 P18 driver 1 - Bridged P815 Low Pass - Bridged P610 (A) Low Pass OUTPUT Ch. 2 not used not used P610 (A) High Pass OUTPUT Ch. 3 P18 driver 2 - Bridged P815 HF P610 (B) Low Pass OUTPUT Ch. 4 not used P15-FP or P10-FP P610 (B) High Pass P5, P6, P8, P28 (1 or 2 speakers) AND P15-FP or P10-FP (1 or 2 subwoofers) P610 (1 speaker) AND P5, P6, P8, P28 (2 speakers) P610 (1 speaker) AND P15-FP or P10-FP (1 or 2 subs) PRESET 1 (Right) PRESET 2 (Left) Connect Link Cable? No No No LINK Ch.1+Ch.2 Off Off On LINK Ch.3+Ch.4 Off On Off INPUT Ch. 1 P5, P6, P8, P28 (A) P5, P6, P8, P28 (A) P610 INPUT Ch. 2 P5, P6,P8.P28 (B) P5, P6, P8, P28 (B) not used INPUT Ch. 3 P10 or P15 (A) P610 P10 or P15 (A) INPUT Ch. 4 P10 or P15 (B) - P10 or P15 (B) OUTPUT Ch. 1 P5, P6, P8,P28 (A) P5, P6, P8, P28 (A) P610 Low Pass OUTPUT Ch. 2 P5, P6, P8,P28 (B) P5, P6, P8, P28 (B) P610 High Pass OUTPUT Ch. 3 P10 or P15 (A) P610 Low Pass P10 or P15 (A) OUTPUT Ch. 4 P10 or P15 (B) P610 High Pass P10 or P15 (B) Additional information and specifications for the DA-2800DSP can be seen in Appendix A at the end of this document. 59

60 Amplifiers, Connections and Calibration 20. Cables and Connectors Speaker Wire Connection The following are our recommended minimums for loudspeaker cable used with Procella loudspeakers. Feel free to use premium speaker cables per your preference, but we do not have any specific recommendations for cable brands. Cable run up to 25m (80 ) Cable run of 25 to 45m ( ) Cable run of 45 to 75m ( ) AWG 14 (2.5mm²) AWG 12 (4mm²) AWG 10 (6mm²) If you are planning to connect more than one surround speaker to a single amplifier channel with a parallel connection, we recommend that separate speaker wires be run from each speaker to the amplifier. This will provide maximum flexibility. Active Speaker Connection All active speakers with onboard amplifiers (P815, P18, P15, P12, P10) use balanced XLR inputs. The P12 also provides unbalanced RCA inputs. All except the P12 have one male and one female XLR connector to allow for a pass-through connection to another speaker. We strongly recommend the use of balanced cables with Procella speakers because they produce minimum system noise and maximum signal quality. When only unbalanced connections are possible, such as with A/V receivers, an RCA to XLR adaptor is provided with each active speaker. Also see Section 21 on page 61 for connection to components with unbalanced outputs. XLR Connector Wiring Pin 1 = Ground Pin 2 = Normal Polarity (Hot) Pin 3 = Inverted Polarity (Cold) Polarity All Procella speakers have positive polarity. The red terminal is the positive (+) input, and a positive voltage applied to it will produce a forward motion of the drivers. 60

61 Amplifiers, Connections and Calibration 21. AC and Grounding Requirements and Troubleshooting The amplifiers in all Procella active speakers have universal power supplies that will operate to spec with any input voltage from 100V to 250V AC. The standard IEC three-prong connection is used for the AC power cord. All Procella amplifiers are High-Power, Switched-mode Class-D amplifiers. Like any digital amplifier, proper mains, grounding and signal interconnections are essential for correct operation, to avoid hum and buzz and to achieve the best possible signal to noise ratio. Always follow these guidelines: Insure that the amplifier is connected to a properly grounded electrical outlet. A good and stable ground connection is essential for correct operation of the switch-mode amplifier and the DSP. A proper ground connection is also essential to avoid electrical shock hazard. Procella Active Loudspeaker models utilize very high power amplifiers. Confirm that the power line and circuits are dimensioned to handle the necessary load according to these guidelines: Model: Recommended Minimum Load Rating P10 115V: 10A 230V: 6A P12 115V: 10A 230V: 6A P15 115V: 10A 230V: 6A P18 115V: 20A 230V: 10A P V: 20A 230V: 10A The power line should be free from disturbances caused by other electrical appliances such as motors, heaters and ovens, elevators, refrigerators or similar. All Procella active loudspeaker amplifiers have a professional balanced (XLR Female) input. For the best possible performance, it is strongly recommended that the amplifier be connected with a professional XLR-type, shielded 2-wire cable to a balanced output of the pre-amplifier. If the amplifier is connected to a pre-amplifier or processor with an unbalanced output, use a n RCA-to-XLR adaptor wired according to IEC where pin 2 is signal and pins 1 and 3 are connected to the shell. (e.g. Neutrik NA2NMP) The adaptor should be connected at the pre-amplifier end and the cable to the amplifier should be a professional XLR-type, shielded 2-wire cable. 61

62 Amplifiers, Connections and Calibration To minimize ground-loops in an unbalanced connection, connect the Procella active loudspeaker amplifiers to the same outlet as the pre-amplifier or processor and run the signal cable in parallel with the mains cable. If hum or buzz is present in the system, despite following the above precautions, below are some steps to solve the most common issues: Confirm that all cables and connectors are in good shape and that there are no bad connections. If it is not possible to connect the Procella active loudspeaker amplifiers to the same wall outlet as the pre-amplifier, try different wall outlets for the amplifier, preferably to an outlet on a different circuit. Modify the unbalanced to balanced adaptor (or make a separate adaptor) with a ohm resistor in series with pin 1. If nothing else helps, use a balancing isolation transformer such as: o Lundahl Transformers model LL156X-PHF3MX o Jensen Transformers model ISO-MAX SUB-XX 62

63 Amplifiers, Connections and Calibration 22. Bass Management and Surround Processor Settings The P6/6V/6iW and P8 are designed for use with a Procella subwoofer, and should be fed with a signal high-pass filtered by a surround processor or electronic crossover. The recommended crossover for both models is 80 Hz, and the correct slope is a second-order (12 db/octave) Linkwitz- Riley filter. The P5 should use a crossover frequency of 120 Hz for High Power application, also with a second-order Linkwitz-Riley filter. This is the same crossover used for Home THX processors or receivers, so if you are using a THX component, set the crossovers to the THX setting. If there is no THX choice, use the SMALL speaker setting. Do not use the LARGE setting with the P6/6V/6iW and the P8, as this will prevent low frequencies from being directed to the subwoofer. There is no low-pass filter in Procella active subwoofers, so the low-pass filter slope of the subwoofer crossover should be fourth-order (24 db/octave). The P860, P815 and P610 are full-range speakers, with low-frequency extension to Hz. Because of this deeper bass extension, they should be operated as full-range speakers (as in professional cinemas and dubbing stages). If necessary, they should only be used with a subwoofer crossover frequency of Hz or higher. Ideally, the P815 and P610 should be set as FULL- RANGE (LARGE) speakers in the processor, with the subwoofer set to a low-pass frequency at 50 Hz or below. For calibration of subwoofer levels, the level control on the subwoofer should first be set to the Default position, which is labeled as 0 and is at the 12 o clock position on the control. This represents a level of 4 db. Final levels can then be set using the controller or preamplifier. The minimum position on the subwoofer level control produces no output from the subwoofer, and the maximum position is 6 db greater than the Default 0 position. 63

64 Technical Specifications and Dimensions 23. Appendix A Product Specifications and Dimensional Information Procella Product Line-Up 66 DA-2800 Technical Specifications 67 P5 Dimensions 69 P5 Technical Specifications 70 P6 Dimensions 71 P6 Technical Specifications 72 P6V Dimensions 73 P6V Technical Specifications 74 P6iW Dimensions 75 P6iW Technical Specifications 76 P8 Dimensions 77 P8 Technical Specifications 78 P28 Dimensions 79 P28 Technical Specifications 80 P610 Dimensions 81 P610 Technical Specifications 82 P815 Dimensions 83 P815 Technical Specifications 84 P860 Dimensions 85 P860 Technical Specifications 86 P10 Dimensions 87 P10 Technical Specifications 88 P12 Dimensions 89 P12 Technical Specifications 90 P15 Dimensions 91 P15 Technical Specifications 92 P18 Dimensions 93 P18 Technical Specifications 94 64

65 Technical Specifications and Dimensions P10Si Dimensions 95 P10Si Technical Specifications 96 P8 and P6/P6V Speaker Mounting Bracket Dimensions 97 65

66

67 DA-2800/DA-2800DSP 2,800W Four-Channel Power Amplifier Technical Specifications 360W x 4 channels at 8 ohms 700W x 4 channels at 4 ohms Bridgeable to 1,400W x 2 channels at 8 ohms Two versions: DA-2800 amplifier only DA-2800 DSP with DSP and Ethernet DSP Version: selectable EQ presets optimized for P860, P815, P18, P15, P10, P10Si DSP Version: preset crossovers for outboard biamplification of the P860, P815 and P610 DSP Version: Ethernet control interface Outboard amp option for P815, P18, P15, P10 Defining the standard in amplification for Procella loudspeakers and subwoofers, the DA-2800 gives users a powerful platform to enable uncompromised performance with any Procella Audio speaker system. This high-efficiency class-d amplifier has extraordinary sound quality with enormous power reserves. As you would fully expect from Procella, the DA-2800 s sound quality is utterly transparent, with an extremely wide dynamic range and robust low-frequency impact. Four channels of amplification deliver a solid 360W each at 8 ohms, or 700W each at 4 ohms, with the additional ability to produce 1,400W at 8 ohms when two channels are bridged (highly recommended for the P18!). Two versions are available: the DA-2800 is a basic power amplifier, and the DA-2800DSP adds DSP control (and Ethernet) to ensure optimal performance with any Procella loudspeaker. In channel pairs, users have the choice of four DSP EQ presets to either optimize the response of individual Fully protected against DC, thermal overload and short circuits Four year warranty Neutrik XLR balanced inputs and Speakon speaker wire output connectors Recessed front panel level controls and LED indicators CE and CSA certified High efficiency Green Audio Power design Switchable 115V/230V power supply Compact and lightweight - 1 RU high and only 7.4 Kg (16.3 lbs.) Procella subwoofers or to provide DSP crossovers for the P860, P815 and P610. Users can choose from standard EQ preset configurations, or, on a custom order basis, specify any combination of presets. The non-dsp DA-2800 can be used where DSP is not required (e.g., P6 and P8). Multiple speakers and/or subwoofers can be driven by a single DA-2800, depending on system requirements. The amplifier can be used in place of the onboard amp usually found on the P815, P18, P15 and P10 - simply order the speaker(s) without the integral amp. See Specifications for each model s amplifier requirements and options. In a 1U rack mount height, the compact DA-2800 packs a robust output capability in a very efficient space, and it weighs just over 16 pounds. For the ultimate Procella experience, the DA-2800 is the only amplifier choice! Procella Audio USA (310) Fax (509) contact@procella-audio.com DA2800 v

68 DA-2800/DA-2800DSP SPECIFICATIONS Number of Channels Four Power Output (per channel, 4 channels) 8 ohms 360 Watts 4 ohms 700 Watts Bridged Power Output (2 channels bridged) 8 ohms 1,400 Watts Inputs Outputs Frequency Response Signal to Noise THD+N SMPTE IMD DIM100 IMD Max. Output Voltage Max. Output Current Slew Rate Damping Factor Crosstalk Input Impedance Input Sensitivity Gain Certifications Balanced Neutrik XLR female connectors (4) Neutrik Speakon NL4MD connectors (4) 10 Hz - 30 KHz (+/-3dB), for 8 ohms >113 dba 20-20KHz, A weighted < 0.05% from 0.1W to full power (<.01% typical) < 0.05% from 0.1W to full power (<.01 typical) <0.02% from 0.1W to full power (<.005 typical) 85V peak 60A peak 40V/msecond, input filter bypassed > 100 Hz <70 1 KHz 10 Kohms, balanced 1.34V / 4.76 dbu 32 db CE and CSA certified Front Panel Indicators Input LEDs: (each channel) Ready/Temp. LEDs: Cooling Front Panel Controls Level Power Back Panel Controls Input Link DSP and Ethernet Power Supply Idle Power 3 green (signal, -18dB, -6dB) 1 red (clip) 1 white (ready) 1 yellow (thermal protection on) Variable speed fan, temperature controlled, airflow front to rear One per channel, stepped Rocker On/Off switch Feeds one input to two channels (Ch.1 + Ch.2 or Ch.3 + Ch.4) DSP Version only (see below) 115V / 230V, internally selectable; IEC connector 60W Dimensions 1.75 x 19 x 14.1 HxWxD 44.5 x 483 x 358mm Shipping Carton 3.5 x 22 x 18.1 HxWxD 90 x 560 x 460mm Net Weight Shipping Weight DA-2800 DSP Version 16.3 lbs. / 7.4 Kg 19.6 lbs. / 8.9 Kg DSP Presets Two banks of four selectable pre- (back panel) programmed presets with LEDs; Bank 1: Ch.1 + Ch. 2 Bank 2: Ch. 3 + Ch. 4 Ethernet (back panel) Network Delay RJ45 connector, rotary address switches Presets can be managed and uploaded over network up to 10 ms for each channel Procella Speaker & Subwoofer Amplifier Channel Requirements Note: when two amplifier channels are bridged, one amplifier input is linked to both channels P6 and P8 P610 P815 P860 P10Si P10 and P15 P18 1 amplifier channel 2 amplifier channels (1 ch. LF, 1 ch. Mid/HF) and DSP required for biamplification 3 amplifier channels (1 bridged pair LF, 1 ch. Mid/HF) and DSP required for biamplification 4 amplifier channels (3 ch. LF, 1 ch. Mid/HF) and DSP required for biamplification 1 amplifier channel and DSP required 1 amplifier channel and DSP required 4 amplifier channels (2 bridged pairs) and DSP required

69

70 P5 L/C/R/Surround Speaker Technical Specifications Procella performance for the first time in this size and price class Main and surround speaker for small to mid-size rooms up to 20 feet in depth 1 compression driver on circular constant directivity waveguide: 80 from 2.5kHz 5.25 high-output pro woofer driver Identical Voice timbre-matched to all Procella models Sealed-box design Can be oriented horizontally or vertically Black or White cabinet finish Can be used with or without optional cloth grille (magnetically attached) Impedance Power handling Continuous Peak Sensitivity 1m/1W Maximum SPL free-standing in wall 8 Ohms nominal Phase angles less than 45 degrees 75 Watt 250 Watt 91dB 107dB continuous, 113dB peak 113dB continuous, 119dB peak Frequency response -3dB points 90Hz and 20kHz Dispersion pattern -6dB Constant directivity; 80 circular from 2.5kHz Crossover Asymmetrical and phase aligned 2.2kHz, BSC Components Midrange 5.25 driver with 26mm voice coil in 5 litre sealed box High Frequency 1 compression driver on a circular constant directivity wave guide Connectivity Wall Mount Finish Dimensions HxWxD Shipping Carton HxWxD Net weight Shipping weight Assembly Gold plated large diameter binding posts Keyholes provided for both vertical and horizontal mounting White or Black semi-matte painted finish. MDF construction, removable cloth grille 12 x 7.5 x 6.7 / 304 x 190 x 170 mm x 11.8 x 10.4" / 400 x 300 x 265 mm 9.9 Lbs / 4.5Kg 12.1 Lbs / 5.5Kg Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P5 v

71

72 P6 L/C/R/Surround Speaker Technical Specifications WORLD-CLASS HIGH PERFORMANCE LOUDSPEAKERS Main and surround speaker for small to mid-size rooms Main speaker recommendation: rooms 10 to 20 feet in depth 1 compression driver on elliptical constant directivity waveguide: 90 H x 60 V from 2.0kHz 6.5 high-efficiency woofer driver Identical Voice timbre-matched to Procella P8, P610, P815 and P860 Sealed-box design Slim profile (4.9" deep) Mounting bracket included Impedance Power handling Continuous Peak 8 Ohms nominal Above 10 Ohm in working range, phase angles less than 30 degrees 100 Watt 300 Watt Components Midrange High Frequency Connectivity 6.5 driver with 40mm voice coil in 9 litre sealed box 1 driver with a Polyester diaphragm on elliptical constant directivity wave guide Gold plated binding posts Sensitivity 1m/1W 90dB Construction Void free MDF internally cross braced Studio vinyl finish as standard Maximum SPL free-standing in baffle wall 110dB continuous, 116dB peak 116dB continuous, 122dB peak Dimensions HxWxD 11.4 x 18.5 x x 470 x 125 mm Frequency response -3dB points 70Hz and 20kHz Dispersion pattern -6dB Constant directivity; 90 H x 60 V from 2.0kHz Crossover 4th Order Linkwitz-Reilly 1.9kHz, BSC Shipping Carton HxWxD 10 x 23.5" x 15.75" 250 x 600 x 390 mm Net weight Shipping weight Included 18.7 Lbs / 8.5Kg 23.1 Lbs / 10.5Kg Wall mount bracket Assembly Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P6 v

73

74 P6V L/C/R/Surround Speaker Technical Specifications Procella s award-winning P6 in a vertical configuration Performance and sound identical to P6 Main and surround speaker for small to mid-size rooms Main speaker recommendation: rooms 10 to 20 feet in depth 1 compression driver on elliptical constant directivity waveguide: 90 H x 60 V from 2.0kHz 6.5 high-efficiency woofer driver Identical Voice timbre-matched to Procella P8, P610, P815 and P860 Sealed-box design Slim and narrow: 125mm (4.9") deep and 290mm (11.4 ) wide Flush wall-mount bracket included Impedance Power handling Continuous Peak 8 Ohms nominal Above 10 Ohm in working range, phase angles less than 30 degrees 100 Watt 300 Watt Components Midrange High Frequency Connectivity 6.5 driver with 40mm voice coil in 9 litre sealed box 1 driver with a Polyester diaphragm on elliptical constant directivity wave guide Gold plated binding posts Sensitivity 1m/1W 90dB Construction Void free MDF internally cross braced Studio vinyl finish as standard Maximum SPL free-standing in baffle wall 110dB continuous, 116dB peak 116dB continuous, 122dB peak Dimensions HxWxD 18.5 x 11.4 x x 290 x 125 mm Frequency response -3dB points 70Hz and 20kHz Dispersion pattern -6dB Constant directivity; 90 H x 60 V from 2.0kHz Crossover 4th Order Linkwitz-Reilly 1.9kHz, BSC Shipping Carton HxWxD 10 x 23.5 x 15.75" 250 x 600 x 390 mm Net weight Shipping weight Included 18.7 Lbs / 8.5Kg 23.1 Lbs / 10.5Kg Wall mount bracket Assembly Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P6V v

75

76 P6iW In-Wall L/C/R/Surround/Height Speaker Technical Information Identical performance and sound as Procella s award-winning P6 All MDF sealed-box design including integral back box Drivers and crossover mounted on removable front baffle Main speaker for mid-size rooms; surround or height channel for any size room Impedance Power handling Continuous Peak Sensitivity 1m/1w Maximum SPL Frequency response -3dB points Dispersion pattern -6dB Crossover Connectivity 8 Ohms nominal. Phase angles less than 30 degrees. 100 Watt 300 Watt 90dB 116dB continuous, 122dB peak 70 Hz and 20 khz Constant directivity; 80 circular from 2.0kHz 4th Order Linkwitz-Reilly. 1.9kHz, BSC Gold plated push terminals 6.5 high-efficiency woofer driver 1 pro compression driver on 80 circular constant directivity waveguide Ideal for ceiling mounted Atmos and VOG 3D Audio height channels Elegant wing-shaped white grille with white fabric cover adds attractive and distinctive look to any environment; black grille optional Components Midrange High Frequency Construction Dimensions Speaker WxH Depth Wall cut-out Grille WxH Shipping Carton HxWxD Net weight Shipping weight Optional Assembly 6.5 driver with 40mm voice coil in 9 litre sealed box 1 compression driver, circular constant directivity waveguide Solid MDF, sealed back box x 18.5 / 328 x 470mm 3.9"/ 98mm (fits in standard U.S. walls) 11.5" x 17" / 292 x 432mm x 19.7 / 400 x 500mm 5.75 x 19.7" x 23.6"/ 265 x 500 x 600 mm 22 Lbs. / 10 Kg 26.5 Lbs. / 12 Kg Black steel grille, black fabric Sweden; 100% QC testing Procella Audio USA (310) contact@procella-audio.com P6iW v

77

78 P8 L/C/R/Surround Speaker Technical Specifications Main and surround speaker for mid to large-size rooms Main speaker for rooms 15 to 30 feet deep THX Approved for integration into professional rooms, including THX Certified Screening Rooms and THX pm3 Studios 1.5 compression driver on elliptical constant directivity waveguide: 80 H x 50 V from 1.5kHz High-output 8 woofer with 1.5 (40mm) VC Identical Voice timbre-matched to Procella P860, P815, P610 and P6 Back baffle angled at 7 Sealed-box design Shallow depth (7.9 deep) Mounting bracket included Impedance Power handling Continuous Peak 8 Ohms nominal Above 12 Ohms in working range, phase angles less than 30 degrees 250 Watt 1,000 Watt Components Midrange High Frequency Connectivity 8 high output driver with 40mm voice coil in 15 litre sealed box 1.5 driver with a Polyester diaphragm on elliptical constant directivity wave guide Gold plated binding posts Sensitivity 1m/1W 92dB Construction Void free MDF internally cross braced Studio vinyl finish as standard Maximum SPL free-standing in baffle wall 116dB continuous, 122dB peak 122dB continuous, 128dB peak Dimensions HxWxD x 17.7 x / 5.4 (7 tilt) 410 x 450 x 200 / 138 mm (7 tilt) Frequency response -3dB points 80Hz and 20kHz Dispersion pattern -6dB Constant directivity; 80 H x 50 V from 1.5kHz Crossover 4th Order Linkwitz-Reilly 1.6 KHz, BSC Shipping Carton HxWxD x 23.5"x 12" 500 x 600 x 305 mm Net weight Shipping weight Included 34.2 Lbs / 15.5 Kg 37.7 Lbs / 17.1 Kg Wall mount bracket Assembly Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P8 v

79

80 P28 L/C/R/Surround Speaker Technical Specifications Extremely high output main and surround speaker for mid to large-size rooms 8 meter THX Cinema reference level (105dB continuous) speaker Main speaker for rooms 15 to 50 feet deep Single-enclosure design with internal crossover does not require biamplification or DSP 1.5 compression driver on elliptical constant directivity waveguide: 35 H x 50 V from 1.5kHz Dual custom high-output 8 woofers with 1.6 / 40mm voice coils Identical Voice timbre-matched to Procella P860, P815, P610, P8 and P6 80Hz subwoofer crossover point Sealed-box design Shallow depth (7.1 / 180mm deep) Impedance Power handling Continuous Peak 4 Ohms nominal Above 6 Ohms in working range, phase angles less than 30 degrees 500 Watt > 1,000 Watt Components Midrange High Frequency Connectivity 8 Neodymium magnet driver with 40mm voice coil in 35 litre sealed box 1.5 driver with a Polyester diaphragm on elliptical constant directivity wave guide Gold plated binding posts Sensitivity 1m/1W 95 db Construction Void free MDF internally cross braced Studio vinyl finish as standard Maximum SPL free-standing in baffle wall 122 db continuous, 128 db peak 128 db continuous, 132 db peak Dimensions HxWxD 25.8 x 17.7 x x 450 x 180 mm Frequency response -3dB points 75 Hz and 20 khz Dispersion pattern -6dB Constant directivity; 80 H x 35 V from 1.5kHz Crossover 4th Order Linkwitz-Reilly 1.6 KHz, BSC Shipping Carton HxWxD 31.5 x 23.6"x 11.8" 800 x 600 x 300 mm Net weight Shipping weight Assembly 46.3 Lbs / 21.0 Kg 49.6 Lbs / 22.5 Kg Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P28 v

81

82 P610 Biamplified L/C/R Speaker Technical Specifications High output main speaker for mid to large size rooms 15 to 30 feet (5 to 9 meters) in depth Full-range operation with extension to 40 Hz Requires external active biamplification with DSP crossover: Optimal performance with Procella DA-2800DSP 2,800 Watt four-channel amplifier 1 inch compression driver on elliptical constant directivity waveguide: 90 H x 60 V from 2.0 khz 10 inch Pro-quality, Italian-made long-throw woofer with 2.5 (65mm) voice coil High-efficiency 6.5 inch midrange with mm voice coil Identical Voice timbre-matched to Procella P8, P6, P815 and P860 Very shallow depth (150mm / 5.9 inches deep) All sealed-box design for superior transient response Impedance Power handling Low Frequency peak High Frequency 8 Ohms nominal 350 Watts continuous, 1,000 Watts 100 Watts continuous, 300 Watts peak Components Low Frequency (P10Si) Midrange (P6) 10 inch long-throw driver with 65mm voice coil in 18 litre sealed box 6.5 inch driver with 40mm voice coil in 9 litre sealed box Sensitivity 1m/1W Maximum SPL free-standing in baffle wall 92 db 116dB continuous, 122dB peak 122dB continuous, 128dB peak Frequency response -3dB points 40Hz and 20kHz Dispersion pattern -6dB Constant directivity: 90 H x 60 V from 2.0 khz Crossover Connectivity 4th Order Linkwitz-Reilly 1.9 khz (internal to P6) 150Hz (external DSP required) Two pair gold-plated binding posts High Frequency (P6) Construction 1 inch compression driver with a Polyester diaphragm on a Procella-designed elliptical constant directivity waveguide Void free MDF, internally cross-braced Studio Black vinyl finish standard Dimensions and Net Weight HxWxD 27.6 x 21.3 x 5.9 / 51 lbs. 700 x 540 x 150 mm / 23 Kg Shipping Cartons (2) and Weight P6 (HxWxD) 10 x 23.5 x / 23.1 lbs. 250 x 600 x 390 mm / 10.5 Kg P10Si (HxWxD) 12 x 25 x 19.5 / 35.5 lbs. 305 x 635 x 500 mm / 16.1 Kg Included Assembly Loudspeaker bracket, Damper feet Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P610 v

83

84 P815 Biamplified L/C/R Speaker Technical Specifications Main speaker for large to very large rooms, up to small cinemas Recommended for rooms 25 to 50 feet in depth THX Approved for integration into professional rooms, including THX Certified Screening Rooms and THX pm3 Studios Active Biamplification: 700W+700W of highefficiency green class-d power 28 bit DSP for room placement conditions including baffle wall and free standing P815-FP option enables use of Procella DA-2800DSP 2,800 Watt four-channel power amplifier 1.5 compression driver on elliptical constant directivity waveguide: 80 H x 50 V from 1.5 khz 8 high-output midrange with 2.5 voice coil 15 woofer with 3 voice coil Identical Voice timbre-matched to Procella P8, P6, P610 and P860 Sealed box design Shallow depth (14.2 / 360mm deep) Active Biamplification Standard P815 P815-FP Option Maximum SPL free-standing in baffle wall 700W + 700W of onboard power: 700W to P8 high frequency module 700W to LF815 low frequency module Enables external biamplification with Procella DA-2800DSP 2,800 Watt four-channel power amplifier 122dB continuous, 126dB peak 126dB continuous, 132dB peak Frequency response -3dB points 40Hz and 20kHz Dispersion pattern -6dB Constant directivity: 80 H x 50 V from 1.5kHz Midrange (P8) High Frequency (P8) Connectivity Construction Dimensions HxWxD 8 high output driver with 40mm voice coil in 15 litre sealed box 1.5 driver with a Polyester diaphragm on elliptical constant directivity waveguide Balanced XLR with provided RCA adaptor Void free and MDF internally cross braced Studio vinyl finish as standard 43.7 x 19.7 x 14.2 / 1110 x 500 x 360 mm Shipping Cartons (2) and Weight P8 HxWxD x 23.5"x 12" / 37.5 lbs. 500 x 585 x 305 mm / 17.0 Kg LF815 HxWxD 25 x 32 x 25 / 115 lbs. 635 x 810 x 635mm / 52.0 Kg Crossover 4th Order Linkwitz-Reilly 1.6 khz and 150Hz Components Low (LF815) 15 driver with 75mm voice coil in 92 litre sealed box Net weight Included Assembly 145 Lbs / 65.0 Kg Connecting Bracket, Connecting cable, Power cord, XLR-RCA adaptor, Damper feet Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P815 v

85

86 P860 Biamplified High Output L/C/R Speaker Technical Specifications Very high output main speaker for the largest domestic rooms up to and including mid-size cinemas Recommended for rooms 12 to 24 metres in length (40 to 80 feet) Stands a massive six feet tall Active biamplification with Procella DA-2800DSP 2,800 Watt four-channel power amplifier 1.5 compression driver on elliptical constant directivity waveguide: 80 H x 50 V from 1.5 khz Dual 8 high-output midranges V6 Power: 6 x 10 woofers with 65mm voice coils Identical Voice timbre-matched to Procella P8 surround channel speakers Sealed box design Full-range operation with extension to 40 Hz Shallow depth (360mm / 14.2 deep) Impedance Mid/HF Low Frequency Amplification Mid/HF Low Frequency Sensitivity 1m/1W Maximum SPL free-standing in baffle wall 4 Ohms nominal 3 inputs, each 4 Ohms nominal Procella DA2800DSP power amplifier Watts Watts 95 db 128dB continuous, 132dB peak 132dB continuous, 138dB peak Frequency response -3dB points 40Hz and 20kHz Dispersion pattern -6dB Constant directivity: 80 H x 50 V from 1.0 khz Crossover 4th Order Linkwitz-Reilly 1.6 khz and 150Hz Components Low Frequency (V6) Midrange (P28) High Frequency (P28) Connectivity Construction Procella V6 : 6 x 10 drivers with 65mm voice coils in 150 litre sealed box 2 x 8 high output drivers with 40mm voice coils in 30 litre sealed box 1.5 driver with a Polyester diaphragm on elliptical constant directivity waveguide 3 LF, 1 HF inputs, gold-plated binding posts Void free MDF, internally cross-braced Studio Black vinyl finish standard Dimensions and Weight HxWxD 69.5 x 20.9 x 14.2 / 201 lbs x 530 x 360 mm / 90 Kg Shipping Cartons (2) and Weight P28 HxWxD 12 x 32 x 24 / 50 lbs. 305 x 810 x 610 mm / 22.5 Kg V6 HxWxD Included Assembly 20 x 48 x 28 / 165 lbs. 510 x 1220 x 710 mm / 75 Kg Loudspeaker bracket, Damper feet Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P860 v

87

88 P10 Active DSP Subwoofer Technical Specifications WORLD-CLASS HIGH PERFORMANCE LOUDSPEAKERS Dual-Drive Dual-Amp design Recommended for small to mid-size rooms Twin 10 long-throw drivers with 2.5 voice coils 350W+350W of high-efficiency green Class-D amplification P10-FP option enables use of external Procella DA-2800DSP 2,800 Watt four-channel power amplifier Sealed-box design with heavily braced cabinet Maximum output Hz - 3 db point 26 Hz Ultra-slim profile (7.1" / 180mm deep) 28-bit DSP control for room boundary conditions: - free standing - against wall - in corner - in baffle wall Frequency Response -3 db 26 Hz Maximum 50 Hz Components DSP Section 119 db Dual long-throw 10 drivers with 65mm voice coils in 36 litre sealed box 28 / 56 bit ADI Sigma P10-FP Enables external amplification and Option DSP with Procella DA ,800 Watt four-channel power amplifier Construction Heavily internally braced MDF Studio vinyl finish as standard Dimensions HxWxD 18.5 x 26.8 x x 680 x 180 mm DSP Settings User selectable Amplifier Line Voltage Free standing Against wall In corner In baffle wall 350W + 350W, Class-D V, Hz Shipping Carton Net weight Shipping weight Included 12.6 x 31.5"x 23.5" / 320 x 800 x 600 mm 57.5 Lbs / 26.0 Kg 66.5 Lbs / 30.1 Kg Power cord, XLR-RCA adaptor, Damper feet Connectivity Balanced XLR RCA input adaptor provided Assembly Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P10 v

89

90 P12 Active 350 Watt Subwoofer Technical Specifications 12 long-throw driver with 2.5 inch / 65 mm voice coil 350W of high-efficiency green Class-D amplification Maximum output Hz - 3 db point 25 Hz Standby power ensures that sub is active before program material starts by calibrating to processor noise level Polarity Normal/Reversed switch Sealed-box design with heavily braced MDF cabinet Ultra-slim profile (8.3 / 210mm deep) Recessed back-panel connectors enable placement against wall Selectable EQ for room boundary conditions: - Against wall - In corner Frequency Response -3 db 25 Hz Maximum 50 Hz Components Polarity Room Settings User selectable 116 db Long-throw 12 driver with 65mm voice coil in 31 litre sealed box Switchable Normal/Reversed Against wall In corner Connectivity Line Input Standby Power Consumption Safety Approval Construction Finish Included Dimensions HxWxD Shipping Carton Net weight Single balanced XLR Single RCA input, Single RCA output Hz, switchable V Programmable Standby <0.5W Full Power 440W CE, FCC, CCC Heavily braced MDF White or Black matte painted finish, steel grille Rubber mounting feet 17.3 x 22.8 x 8.3 / 440 x 580 x 210 mm 20.5 x 27.6"x 11.8" / 520 x 700 x 300 mm 35.2 Lbs / 16.0 Kg Amplifier 350W, Digital Class D Shipping weight 37.5 Lbs / 17.0 Kg Procella Audio USA (310) Fax (509) contact@procella-audio.com P12 v

91

92 P15 Active DSP Subwoofer Technical Specifications WORLD-CLASS HIGH PERFORMANCE LOUDSPEAKERS Dual-Drive Dual-Amp design Recommended for mid to large-size rooms Twin 15 long-throw drivers with 3 voice coils 350W+350W of high-efficiency green Class-D amplification P15-FP option enables use of external Procella DSP-2800DSP 2,800 Watt four-channel power amplifier Sealed-box design with heavily braced cabinet Maximum output Hz - 3 db point 22 Hz Shallow depth (8.7 / 220mm deep) 28-bit DSP control for room boundary conditions: - free standing - against wall - in corner - in baffle wall Frequency Response -3 db 22 Hz Maximum 50 Hz Components DSP Section DSP Settings User selectable Amplifier Line Voltage 125dB Dual long-throw 15 drivers with Neodymium magnets and 75mm voice coils in 75 litre sealed box 28 / 56 bit ADI Sigma Free standing Against wall In corner In baffle wall 350W + 350W, Class-D V, Hz P15-FP Option Construction Enables external amplification with Procella DA-2800DSP 2,800 Watt fourchannel power amplifier Heavily internally braced MDF Studio vinyl finish as standard Dimensions HxWxD 22.4 x 36.6 x x 930 x 220 mm Shipping Carton 14 x 41"x 27" 360 x 1045 x 685mm Net weight Shipping weight Included 88 Lbs / 40.0 Kg 100 Lbs / 45.0 Kg (plus pallet) Power cord, XLR-RCA adaptor, Damper feet Connectivity Balanced XLR RCA input adaptor provided Assembly Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P15 v

93 650mm (25.6") 360mm (14.2") 35mm (1.4") 11mm (0.4") Additional space for connectors 1050mm (41.3") Ventilation and "Handles" 15mm (0.6") Baffle wall cut-out = 1100 x 700mm ( 43.3" x 27.6" ) Weight = 97kg (215Lbs) 360mm (14.2") R 60mm (2.4") Height of insulation feet P18 Procella P18 dimensions P18_vue.CAD Anders Uggelberg aug -09 UPD: 15/9 Scale 1:10 (PDF/JPG-file not to scale) PROCELLA AUDIO 2009

94 P18 Active DSP Subwoofer Technical Specifications WORLD-CLASS HIGH PERFORMANCE LOUDSPEAKERS Frequency Response -3 db 18 Hz Maximum 50 Hz Components DSP Section DSP Settings User selectable Amplifier Line Voltage Connectivity 133dB Dual long-throw 18 drivers with 100mm voice coils in 205 litre sealed box 28 / 56 bit ADI Sigma Free standing Against wall In corner In baffle wall 700W + 700W, Class-D V, Hz Balanced XLR RCA input adaptor provided P18-FP Option Construction Procella Audio USA (310) Fax (509) contact@procella-audio.com P18 v Dual-Drive Dual-Amp design Extremely high output for the largest home cinemas, screening rooms and small cinemas THX Approved for integration into professional rooms, including THX Certified Screening Rooms and THX pm3 Studios Twin 18 long-throw drivers with 4 voice coils 700W+700W of high-efficiency green Class-D amplification P18-FP option enables use of external Procella DA-2800DSP 2,800 Watt four-channel power amplifier Critically reinforced sealed-box design Maximum output Hz - 3 db point 18 Hz Shallow depth (360mm / 14.2 ) 28-bit DSP control for room boundary conditions: - free standing - against wall - in corner - in baffle wall Enables external amplification and DSP with Procella DA ,800 Watt power amplifier Heavily internally braced MDF Studio vinyl finish as standard Dimensions HxWxD 25.6 x 41.3 x x 1050 x 360 mm Shipping Carton 25 x 48"x 32" 635 x 1220 x 815 mm Net weight Shipping weight Included Assembly Lbs / Kg 254 Lbs / Kg (plus pallet) Power cord, XLR-RCA adaptor, Damper feet Sweden; 100% QC testing

95

96 P10Si Balancing Subwoofer Technical Specifications The P10Si provides integrators with a highly useful new option that facilitates the use of multiple subwoofers to produce more consistent bass performance in listening rooms. When one or more Procella P18, P15 or P10 subwoofers are used as main subwoofers, multiple P10Si subwoofers can be placed in different room locations to smooth the low frequency modes of the room. This can improve the overall bass quality and significantly reduce seat-to-seat variance in low frequency levels. Designed for use in multiple room locations to smooth low frequency room modes Optimizes low-frequency response when used with P18, P15 or P10 main subwoofers 10 Pro-quality Italian-made long-throw subwoofer driver with 2.5 voice coil Reqires external amplification with DSP crossover: Optimal performance with Procella DA-2800DSP 2,800 Watt four-channel power amplifier Sealed-box design with heavily braced cabinet for superior transient response Maximum output Hz In-room -3 db point 26 Hz Ultra-slim profile (5.9"/150mm deep) Fits in standard wall framing U.S /8, vertical orientation EU - 540mm, horizontal orientation Impedance Power handling Continuous Peak: Sensitivity 1m/1W Maximum 50 Hz 8 Ohms nominal 350 Watts 1,000 Watts 92 db 113 db Frequency response -3dB 26Hz Construction Void free MDF, internally cross-braced Studio Black vinyl finish standard Dimensions HxWxD x 21.3 x 5.9 (horizontal) 365 x 540 x 150 mm Shipping Carton HxWxD 12.6 x 31.5 x x 800 x 600 mm Net Weight Shipping Weight 30.8 lbs. / 14 Kg 35.5 lbs / 16.1 Kg Components Connectivity 10 inch long-throw driver with 65mm voice coil in 18 litre sealed box Gold-plated binding posts Included Assembly Damper feet Sweden; 100% QC testing Procella Audio USA (310) Fax (509) contact@procella-audio.com P10Si v