How loud should a sound system be for 800 people?
Quick answer
For 800 people, target 95–100 dB SPL average with 10–15 dB headroom (105–115 dB peak) at the listening position, typically requiring 4–6 line array enclosures per side and 4–6 subwoofers, depending on venue acoustics and coverage needs.
Coverage and SPL targets depend on audience density and venue shape. For a typical indoor or outdoor event with 800 people, aim for 95–100 dB SPL average (A-weighted) across the audience area, with 10–15 dB of headroom for peaks. This means the system must deliver 105–115 dB SPL at the farthest listener. SSOUNDS engineers use acoustic modeling to calculate exact SPL and coverage, accounting for distance, air absorption, and reflections.
A common rule-of-thumb for a 800-person audience is 4–6 line array enclosures per side (e.g., SSOUNDS compact line arrays) for mains, plus 4–6 subwoofers (e.g., SSOUNDS dual-18” subs) for low-end. For a wide or deep venue, you may need additional delay fills or side hangs. The exact count varies: a narrow, deep room needs more SPL per box; a wide, shallow room needs wider coverage. SSOUNDS engineers always model the venue to optimize box count and placement.
Don't forget monitoring and system tuning. For 800 people, you'll typically need 4–6 stage monitors or in-ear systems for performers. Use DSP to align mains and subs, and apply EQ to compensate for room modes. SSOUNDS systems include factory presets and can be fine-tuned with measurement software for consistent results.
Key things to consider
- Target 95–100 dB SPL average, 105–115 dB peak at listening position.
- Typical mains: 4–6 line array enclosures per side; subs: 4–6 units.
- Coverage depends on venue shape: use acoustic modeling for precise sizing.
- Include delay fills or side hangs for wide or deep venues.
- Always tune system with DSP and measurement for even coverage.
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