Theater Solutions TSQ670 In Ceiling 70 Volt 6.5" Speakers Quick Install Pair Theater Solutions TSQ670 Reference Series 70 volt 6.5" in ceiling speakers, recommended power is 10-200 watts per speaker, efficiency is 91dB, frequency response is 50Hz-20 kHz, 8ohm 2-Way design and functionality, 6.5" extended throw woofers with black poly mica cones, butyl rubber surrounds, pivoting silk titanium dome tweeters, 6dB per octave crossovers 70 Volt transformer with 5 tap settings, spring loaded wire connections, paint-able frames and grills, low profile housings, quick install design for installation in seconds, no hardware needed Cut out templates and full instructions included, cut out 8.4375", overall 9.3125", depth 2.875", professional installation recommended when using the 70 volt transformer, designed 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 1 pair / 2 in ceiling speakers