HD-S10 passive in-wall subwoofers, recommended power is 20-300 watts per sub, frequency response is 26Hz-200Hz, efficiency is 98dB, 8ohm, spring-loaded speaker wire terminals. 10" woofers, woven fiber bulletproof cones, butyl rubber surrounds for enhanced performance, paintable frames and grills, low-profile housings, instructions included. Integrated wall-lock mounting system, cut-out templates included, cut-out is 10.625" x 10.625", overall is 12" x 12", mounting depth is 3.75", designed and engineered in the USA. Use for in-wall or in-ceiling home entertainment, surround sound, home theater, multiple room systems, industrial sound systems.
This listing and price is for 2 in-wall passive subwoofers; these passive subs require a WS1005 sub amplifier for each or sub amps with similar specifications