Product details of Velodyne Impact 10 Subwoofer - BlackVelodyne 80-IMP10B Impact 10 Inch 150 W RMS Subwoofer (Black)MDP amplifer with more dynamic headroom for high levels of bass impact10-inch high quality long throw driver2-inch dual layer copper wound voice coil reduces distortionHome decor friendly compact cabinetDown firing port for more outpu..