DESC: The Niles CM750FX Surround Speakers offier an integrated woofer/baffle design that delivers greater low frequency response by employing a 7-inch woofer where competitive models employ 6 1/2-inch woofers. The injection-molded TCC(TM) (Talc, Carbon, And Ceramic-filled) cone is extremely rigid to reduce breakup, lower distortion and provide enhanced bass response. These speakers also feature dual 1-inch pivoting fluid-cooled Teteron(R) dome tweeters that offer ultra-wide dispersion and silky-smooth high-frequency response. The bridge-mounted surround effects (FX) tweeter array directs the high-frequency sounds at opposing angles to create realistic surround sound effects and the butyl rubber surround damps resonance and provides exceptional durability. Flush-mount MicroPerf(TM) aluminum grilles are included for a clean and unobtrusive look.