How many watts of PA do I need for 200 people?

Wattage alone doesn't tell the full story—coverage and SPL (sound pressure level) are what matter. For 200 people in a typical indoor venue (e.g., 1,000–2,000 sq ft), you need about 120–125 dB peak SPL at the listening area. A rule of thumb is 10–20 watts per person for continuous program material, so 2,000–4,000 watts total (continuous, not peak) is a safe starting point. This usually means a pair of 12″ or 15″ two-way tops (each 500–1,000W continuous) and one or two 18″ subwoofers (each 500–1,000W continuous).

However, wattage ratings vary by manufacturer and measurement standard (e.g., AES, peak, program). SSOUNDS engineers never rely on wattage alone—we use acoustic modeling software to predict coverage, SPL distribution, and low-frequency extension for your specific room shape, ceiling height, and audience layout. For example, a long, narrow room may require more boxes for even coverage, while a wide room might need a distributed system. Subwoofer count also depends on bass content and desired impact; one 18″ sub is often enough for spoken word or acoustic music, but two are recommended for dance or rock events.

Also consider amplifier headroom: your amp should deliver 1.5–2 times the loudspeaker's continuous rating to handle transients cleanly. And don't forget that placement and tuning (EQ, delay, crossover) are critical—a well-tuned 2,000W system can outperform a poorly set up 5,000W rig. SSOUNDS provides full system design and tuning support to ensure your PA delivers clear, powerful sound for 200 guests.