Theater Solutions TS1000 Passive 10" Home Theater in Wall Subwoofer and Amp Set Theater Solutions TS1000 passive in wall sub speaker, recommended power is 20-150 watts, frequency response is 22Hz-200Hz, efficiency is 92dB, 8ohm, spring loaded speaker wire terminals Streamline 3.625" mounting depth, 10" poly treated woofer with butyl rubber surround, 2nd order 12dB per octave crossover, paintable frame and grill, low profile housing Integrated wall-lock mounting system, cut out template included, cut out is 10.625" x 10.625", overall is 12" x 12", instructions included, designed and engineered in the USA Theater Solutions SA200 passive subwoofer amplifier, 200W, 50-200Hz, output impedance is 4-8ohm, sub volume and crossover control knobs, LFE and RCA inputs, raw wire outputs, 2.25" x 8.5" x 6" Use for in wall or in ceiling home entertainment, surround sound, home theater, multiple room systems, industrial sound, this listing and price is for 1 in wall passive sub speaker and 1 sub amp