Seismic Audio - 18" Down Firing Pro Audio Subwoofer PA Cabinet Model # - SA-18 - 500 Watts RMS -1000 Watts Peak Woofer -High Power 18" subwoofer Loud Speaker. Has a 90oz magnet w/ a 3 kapton voice coil Wired at 8 ohms. 30Hz 125Hz. Sensitivity: 98 db. 3/4 Plywood Front Panel Black carpet with black corners. Recessed Black handles. Input terminal with two 1/4" inputs Speaker Mount on top of cabinet. 28 tall -20 wide -20 deep