Acoustic Audio HD-6 High Definition In Ceiling 2-Way Speaker 3 Pair Pack; Recommended Power is 20-300 Watts per speaker; Frequency Response is 32Hz-22 kHz; Efficiency/Sensitivity is 98dB at 1 watt 1 meter; Impedance is 8ohm; 2-Way Design and Functionality; 6.5" Woofers; Woofers Made with Woven Fiber Bulletproof Cone Woofers Provide a Full Range of Tones; Butyl Rubber Surrounds For Increased Performance and Durability; Pivoting Titanium Tweeters; All Weather Design For Indoor And Outdoor Use; Paintable Frames and Grills; Low Profile Housings Designed For Easy Installation; Integrated Wall-Lock Mounting System; Cut-Out Templates Included For Easy Installation; Cut Out Size is 7.875" per speaker; Overall Size is 9" per speaker; Mounting Depth is 3.25" per speaker; Designed and Engineered in the USA; Full Instructions Included; Use for In Wall or In Ceiling Home Theater . Surround Sound . Whole House Audio Systems and Outdoor Entertainment Areas; This Listing and Price is for 3 Pair / 6 In Ceiling or In Wall Speakers