6.5 component speaker system with crossovers; 300W max; 150W RMS; Impact-resistant tweeter elements; Neo-Mylar(R) soft-dome tweeters; Silver alpha-cellulose poly cones; UV-resistant rubber surrounds; Treated pressed-paper cones; Anti-resonant stamped steel frames; Imp: 4ohm ; Sensitivity: 89dB @ 1W/1m; Freq resp: 55Hz-20kHz ; Chassis depth from flange: 2.12; Includes installation hardware;