What size PA system do I need for 10,000 people?
Quick answer
For 10,000 people, you typically need a large-format line array system capable of 100–105 dB SPL at the listening area, with around 16–24 enclosures per side and 12–18 subwoofers, depending on venue geometry and content.
Sizing a PA for 10,000 people requires balancing coverage, SPL, and headroom. A common rule of thumb is to aim for 100–105 dB SPL average at the farthest listener, with 6–10 dB of headroom for peaks. For an outdoor festival, this often translates to 16–24 large-format line array boxes per side (e.g., SSOUNDS three-way systems) and 12–18 subwoofers, flown or ground-stacked. Indoor venues may require fewer boxes due to reflections but need careful pattern control to avoid excessive reverberation.
Coverage is critical: you need even SPL across a wide horizontal angle (90–120°) and sufficient vertical throw to reach the back rows. SSOUNDS engineers use AI-assisted acoustic modeling to predict coverage and optimize box angles, splay, and subwoofer placement for each venue. Factors like stage height, audience slope, and wind (outdoor) also affect deployment. A typical flown array for 10,000 people might use 12–16 boxes per side for the main hangs, with additional side or delay fills for extreme width.
Subwoofer count depends on desired low-end impact. For dance music, you might double the sub count (e.g., 18–24 subs) and use cardioid configurations to reduce rear spill. SSOUNDS subwoofers are designed for high output and low distortion, with DSP presets that align phase and time for coherent bass across the audience. Always consult a professional system designer for precise specs, as venue specifics can change requirements significantly.
Key things to consider
- Target 100–105 dB SPL average at the farthest listener, with 6–10 dB headroom for peaks.
- Typical main array: 16–24 large-format line array boxes per side (e.g., SSOUNDS three-way systems).
- Subwoofers: 12–18 units for general use; 18–24 for bass-heavy content, often in cardioid arrays.
- Coverage requires even horizontal (90–120°) and vertical throw; use acoustic modeling for precision.
- Always factor in venue geometry, stage height, and environmental conditions; consult professionals.
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