Drop-in replacement installation; OPEN & SMOOTH(TM) sound design; Clear, high frequencies & deep rich bass; Low distortion; Midrange/tweeter bridge with Waveguide; High heat-resistant wire voice coils; Carbon & mica-reinforced IMPP woofer cones; Elastic polymer-surround material; 11.2oz ferrite woofer magnets; Dual 11mm dome tweeters; 1 5/8 cellulose fiber cone midranges; 3,600Hz woofer to midrange crossovers; Imp: 4ohm ; Includes multifit installation adapters, screws, speaker lead wires & grilles; 4-way, 6.5 speakers; Freq resp: 36Hz-25kHz; 350W max, 80W RMS; Sensitivity: 88dB @ 1W/1m; 2 3/8 mounting depth;