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; 12.7oz ferrite woofer magnets; 11mm & 18mm PET dome tweeters; 9mm PET dome super tweeter; 2 1/4 PEI film cone midranges; 4,300Hz woofer to midrange crossovers; Imp: 4ohm ; Includes multifit installation adapters, screws, speaker lead wires & grilles; 5-way, 6 x 9 speakers; Freq resp: 34Hz-25kHz; 600W max, 100W RMS; Sensitivity: 89dB @ 1W/1m; 2 7/8 mounting depth;