How many subwoofers do I need for a house of worship?
Quick answer
For a typical house of worship, start with 2 to 4 subwoofers, depending on room size and desired low-end impact. A good rule is one subwoofer per 500–1,000 sq ft for moderate output, scaling up for larger or more bass-heavy services.
Subwoofer requirements for a house of worship depend on room volume, acoustics, and musical style. For spoken word and traditional hymns, 2 subwoofers (e.g., dual 18-inch) may suffice for up to 500 seats. For contemporary worship with drums and bass, plan for 4 or more to achieve even coverage and headroom without distortion.
SSOUNDS recommends using subwoofer arrays (e.g., cardioid or end-fire) to reduce stage rumble and focus low frequencies on the congregation. Start with a system design that places subwoofers symmetrically (e.g., flown or ground-stacked) and measure with SPL and prediction software to verify coverage. Always allow for future expansion—install extra cabling and processing channels now.
Key factors: room dimensions (especially cubic volume), seating layout, and desired SPL at the back rows. A 300-seat room (approx. 50,000 cu ft) typically needs 2–3 high-output subwoofers; a 1,000-seat room may require 6–8. Consult an acoustic engineer or use SSOUNDS’ AI-assisted simulation to optimize your specific space.
Key things to consider
- For rooms under 500 seats: 2–4 subwoofers (dual 18-inch) for balanced bass.
- For 500–1,000 seats: 4–6 subwoofers, possibly in cardioid arrays to control rear spill.
- Always plan for headroom: choose subwoofers rated for 3–6 dB above your target SPL.
- Use subwoofer placement to avoid nulls: cluster them or use distributed designs.
- Invest in DSP and measurement tools (e.g., SMAART) to tune the system for even response.
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