Theater Solutions TS50C in Ceiling Speakers Surround Sound Home Theater 7 Speaker Set Theater Solutions TS50C in ceiling speakers, recommended power is 10-200 watts per speaker, efficiency is 92dB, frequency response is 50Hz-20 kHz, 8ohm, 2-way design and functionality 5.25" woven fiber bulletproof cone woofers with butyl rubber surrounds, 1" PEI dome tweeters, 2nd order 6dB per octave crossovers, spring loaded raw wire connections Paint-able frames and grills, low profile housings designed for easy installation, unique wall locking mounting system, no mounting hardware needed, cut out templates, full instructions included Cut out size is 6.875" per speaker, overall size is 8.375" per speaker, mounting depth is 2.25" per speaker, designed and engineered in the USA Use for in wall or in ceiling home entertainment, surround sound, home theater, offices or commercial, this listing and price is for 3.5 pair / 7 in ceiling speakers