Community R.5-MAX Spécifications télécharger pdf (Page 25)

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.

Recommended Effective Operating Distances

INSTALLATION

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Community R.5-MAX Spécifications Page 25