Community R.5-MAX Specifications download pdf (Page 27)

Community R SERIES Installation/Operation Manual for Models R.5 and R.25 — Page 27

SYSTEM OPTIMIZATION

CHOOSING THE RIGHT LOUDSPEAKERS

AND ELECTRONICS

Choose R SERIES models with high enough maximum SPL to provide the needed SPL at the farthest listener with

an appropriate headroom. Typical headroom factors are at least 6 dB for voice paging, at least 10 dB for voice

reinforcement and at least 20 dB for music reinforcement.

Choose R SERIES models with the right frequency response for the application. Subwoofers will improve the

sound quality of a music reinforcement system but may reduce intelligibility in a voice-only system in a reverberant

space.

Choose R SERIES models with the right coverage patterns to cover the audience evenly. Point the loudspeakers

at the listeners and away from walls and ceilings or outdoor obstructions.

In outdoor applications, loudspeakers may be far enough apart to create artificial echoes in areas of overlapped

coverage. Ideally, put all loudspeakers in a central location (central cluster design) or use a distributed system

design to minimize this problem. In any case, minimize overlap when speakers are separated by more than

approximately 40 feet.

Choose power amplifiers large enough to provide the desired power output with enough headroom to avoid

clipping. Use a limiter and high-pass filter to protect the loudspeakers. Follow proper wiring design and adjust

gains and levels to minimize hum and noise.

COMMISSIONING THE SYSTEM

Commissioning is the process of optimizing the performance of the system after it has been installed. There are

several steps in commissioning including verifying the proper operation of each system component and adjusting

system gains and levels.

The last step in system commissioning is known as system equalization or “voicing”. Equalization is the process

of adjusting the frequency response of the system to optimize voice intelligibility or musical sound quality (or both).

Note that R SERIES loudspeakers are factory voiced to optimize their speech intelligibility and musical sound

quality. For this reason, many designers find they can minimize overall system equalization and still achieve

excellent voice intelligibility and musical sound quality.

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Community R.5-MAX Specifications Page 27