What size PA system do I need for 300 people?

Sizing a PA for 300 people depends on venue acoustics, content type (speech vs. music), and desired headroom. A good rule of thumb: aim for 105–110 dB SPL at the listening area with 6–10 dB of headroom. For a typical indoor space (e.g., conference hall or club), two high-output 12″ or 15″ point-source loudspeakers per side can cover the audience, with two to four 18″ subwoofers for low-end extension. Outdoors or in reverberant spaces, you may need additional boxes or a small line array.

Coverage is critical: the system should provide even SPL across the entire audience area, avoiding hot spots or dead zones. SSOUNDS engineers use AI-assisted acoustic modelling to predict coverage and adjust array configuration, DSP presets, and subwoofer placement for optimal results. For 300 people, a simple left-right setup with flown or pole-mounted mains and ground-stacked subs often works, but distributed delays may be needed for long or wide rooms.

Power and processing are equally important. A system with 2000–4000W total amplification (e.g., SSOUNDS DSP amplifiers) ensures clean power. Always consider future-proofing: renting or buying a slightly larger system than the minimum allows for flexibility. SSOUNDS recommends consulting with their team for a precise design, as every venue is unique.