M&S SYSTEMS WG100C 6.5- Inch WAVEGUIDE SERIES CEILING SPEAKERS 8" Kevlar Woofer Cones With Butyl Rubber Surround 1" Pivoting Asymmetric Aluminum Dome Tweeters 6.5" Kevlar Woofer Cones With Butyl Rubber Surround Baffle Design For Superior Sound Dispersion Adjustable 3-Position Db Switches (+/-3 Db Base & Treble) For Customized Room Installation