? 150W RMS;? Diamond chrome cutting finish;? Die-cast aluminum frame;? 1'' high-temperature Kapton(R) voice coil;? Ferrofluid-enhanced voice coil;? 30oz magnet structure;? Mylar(R) crossover capacitor;? Sensitivity: 104dB @ 1W/1m;? Freq resp: 2kHz-20kHz;? Imp: 4ohm -8ohm ;? 3.125'' dia;? 2'' mounting depth; / ONE YEAR