Impact-resistant tweeter elements; Neo-Mylar(R) soft-dome tweeters; Polypropylene cones; UV-resistant rubber surrounds; Treated pressed-paper cones; Anti-resonant stamped steel frames; Imp: 4ohm ; Sensitivity: 89dB @ 1W/1m; Includes installation hardware; 6 x 9 ; 3 way; 400W max; 200W RMS; Freq resp: 46Hz-20kHz ; Chassis depth from flange: 3.35; Pa;