Acoustic Audio CC6 in-Wall 6.5" Left Center Right Front Speaker System 900W CC6-3S Acoustic Audio CC6 Specialty Series in wall speakers, recommended power is 20-300 watts per speaker, frequency response is 35Hz-22 kHz, efficiency is 98dB, crossover frequency is 2200Hz, 8ohm 3-way design and functionality, two 6.5" woofers per speaker, high rigidity polypropylene cones with butyl rubber surrounds, 12mm soft dome tweeters, spring loaded speaker wire terminals All weather design for indoor and outdoor use, paintable frames and grills, low profile housings, integrated wall-lock mounting system, cut-out templates included for easy installation Cut out size is 19.25" x 7.5" per speaker, overall size is 20.5" x 8.75" per speaker, mounting depth is 3.25" per speaker, designed and engineered in the USA, full instructions included Use for home theater, surround systems, whole house, multi-room audio systems, covered outdoor areas, commercial, office, retail applications, package contents is 3 in wall center speakers