How loud should a mosque sound system be?
Quick answer
A mosque sound system should deliver clear, intelligible speech at 75–85 dB SPL at ear level across the congregation, with peaks up to 90 dB for calls to prayer, avoiding distortion or excessive loudness that causes echo or discomfort.
The primary goal in a mosque is speech intelligibility, not sheer volume. The system should provide even coverage so every worshipper hears clearly, typically 75–85 dB SPL at seated ear height. For the adhan (call to prayer), brief peaks up to 90 dB are acceptable, but sustained levels above that can cause fatigue and feedback. SSOUNDS engineers recommend measuring background noise (often 40–50 dB in quiet mosques) and aiming for 15–20 dB above that for clarity.
System sizing depends on the mosque's volume, shape, and acoustics. A small prayer hall (up to 200 m²) may need only a few point-source speakers, while larger spaces (500+ m²) benefit from distributed systems or compact line arrays to control reflections. SSOUNDS offers scalable solutions: for medium mosques, a pair of high-output point-source speakers with DSP presets tuned for speech can suffice; for larger venues, a slim line array like SSOUNDS’ compact series ensures even coverage without excessive SPL. Always include subwoofers only if music is used—speech alone needs minimal low-frequency extension.
Key selection criteria: coverage pattern (90° x 60° or 120° x 60° for typical rectangular halls), sensitivity (≥95 dB for efficient use with smaller amps), and DSP with feedback suppression. SSOUNDS systems include factory presets for mosque applications, optimizing EQ for vocal clarity and reducing room modes. Avoid over-specifying: a system that can hit 110 dB is overkill and risks damaging hearing. Instead, prioritize even coverage and headroom of 6–10 dB above target level.
Key things to consider
- Target 75–85 dB SPL at ear level for speech; up to 90 dB for adhan peaks.
- Measure background noise and aim for 15–20 dB signal-to-noise ratio.
- Use distributed speakers or compact line arrays for large spaces to avoid hot spots.
- Select speakers with narrow vertical dispersion to reduce ceiling reflections.
- Include DSP with speech-optimized presets and feedback suppression.
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