Theater Solutions 4 Pairs of New 8" In Wall Surround Sound HD Home Theater Rectangular Glass Fiber Speakers 4TSS8W Theater Solutions TSS8W in wall speakers, recommended power is 10-300 watts per speaker, efficiency is 95dB, frequency response is 28Hz-21 kHz, 8ohm, 2-way design and functionality 8" extended throw woofers with black interlaced glass fiber cones, longer life butyl rubber surrounds, pivoting liquid cooled silk dome tweeters, plus or minus 3dB adjustment switches 2nd order 12dB 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 Cut out templates, full instructions included, cut out size is 12.75" x 8.75", overall size is 14.125" x 10.6275", mounting depth is 3.5625", 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 4 pair / 8 in wall speakers