? 10W-150W ;? Recommended amp power: 100W ;? 6.5 polycarbonate woofer;? .5 poly dome tweeters;? Dual voice coils & twin tweeters;? Imp: 8ohm ;? Freq resp: 53Hz-21kHz;? Sensitivity: 90dB @ 1W/1m ;? Required cutout: 7.5 dia;? Required depth: 3.06;? Each;