Specifications

Community R2-Series Installation/Operation Manual — Page 16
ORIENTING AN R2
An R2 has a definite top and bottom. Two R2 models have asymmetrical coverage patterns (See FIGURES 2
and 5). Because of these designs, incorrect orientation will result in improper sound coverage. For the R2
models with symmetrical coverage patterns, a 180 degree inversion will not affect the coverage. When the top of
the enclosure is up, the input cable gland-nut will be down and to your right when looking directly at the front of
the loudspeaker. Also, the manufacturer's label is on the top of the enclosure. Once the top is determined, you
can properly orient the loudspeaker for your particular application according to the specified coverage pattern.
Throw Distance and Sound Levels
The chart below helps answer the question, “how far can it throw?”. The chart shows the maximum distance at
which a given model can reach 96 dB SPL on the A Scale (speech range). Consider a high-school football
stadium where the crowd noise is 86 dBA. At the recommended distance, an R.25 or R.5 would provide 10 dB
headroom above the crowd noise. Even if the crowd noise reaches 90 dBA, the R.25 or R.5 would still provide
6 dB of headroom which is acceptable for voice paging and announcement systems (use a limiter to avoid
clipping). In larger facilities, crowd noise can exceed 100 dBA. At motor racing events, racing noise can exceed
120 dBA near the track. It is impractical and unsafe to try to page above these levels. It’s better to train
announcers to wait until the crowd (or motor noise) quiets down and to repeat the page.
PHYSICAL INSTALLATION
For a larger view of chart, please see page 31.