How many subwoofers do I need for a conference?

The number of subwoofers needed for a conference depends primarily on the room size, ceiling height, and the type of content. For spoken word, subwoofers reinforce the lower vocal frequencies (around 80–120 Hz) to add warmth and presence. In small to medium conference rooms (up to 200 seats), a single high-quality subwoofer can provide adequate coverage. For larger ballrooms or halls (300–500 seats), two to four subwoofers placed symmetrically ensure even bass distribution and reduce dead spots.

SSOUNDS recommends using subwoofers with a cardioid or end-fire array configuration to minimize rear energy and improve clarity for the audience. Overusing subwoofers can cause muddiness and reduce speech intelligibility, so it's better to start with a conservative number and add more only if needed. Always consider the subwoofer's power handling and sensitivity; a single 18-inch subwoofer with high output may outperform two smaller units.

For conferences with multimedia presentations or music playback, additional subwoofers may be required to handle low-frequency effects. However, for pure speech reinforcement, one or two subwoofers are typically enough. SSOUNDS engineers can help design a system tailored to your specific venue using predictive software to ensure optimal coverage and SPL.