What size PA system do I need for 200 people?
Quick answer
For 200 people, a medium-format PA system with around 1000–2000W total power, two top boxes (e.g., 12-inch two-way) and one or two 18-inch subwoofers per side typically provides clear, full-range coverage for speech and music.
Sizing a PA for 200 people depends on the venue (indoor vs. outdoor), music genre, and desired SPL. As a rule of thumb, aim for 90–100 dB continuous SPL at the listening area with 10–15 dB headroom. For indoor events, two high-quality 12-inch or 15-inch point-source loudspeakers on stands plus one or two 18-inch subwoofers are usually sufficient. For outdoor or louder events, consider a small line array (e.g., 4–6 boxes per side) to ensure even coverage and higher output.
SSOUNDS engineers use acoustic modelling software to predict coverage and SPL distribution, ensuring the system matches the room geometry and audience layout. This avoids guesswork and optimises placement, delay, and EQ. For 200 people, a typical SSOUNDS system might include two 12-inch tops and two 18-inch subs, powered by a single DSP amplifier, delivering consistent sound across the audience area.
Key factors: coverage angle (90° x 60° or 60° x 40° for tighter throw), subwoofer placement (cardioid or end-fire for bass control), and amplifier power (ensure at least 1.5x RMS rating of speakers). Always allow for future expansion if the event grows.
Key things to consider
- Indoor 200-person event: 2x 12-inch tops + 1–2x 18-inch subs, 1000–2000W total.
- Outdoor or louder: small line array (4–6 boxes per side) for even coverage and headroom.
- Target SPL: 90–100 dB continuous with 10–15 dB headroom at listening position.
- Use acoustic modelling (like SSOUNDS does) to optimise coverage and avoid dead spots.
- Ensure amplifier power is at least 1.5x speaker RMS to prevent clipping.
Need the right system specced for your venue?
SSOUNDS designs, supplies, installs and tunes professional AVL worldwide.