Community R-Series Installation/Operation Manual for Models R.5 and R.25 — Page 25
R.25 and R.5 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.
INSTALLATION
