SPECIFICATIONS System Type Self powered 18”, subwoofer system Max SPL Output 135 dB Frequency Range (-10 dB) 29 Hz - 150 Hz Frequency Response (-3 dB) 35 Hz - 120 Hz Amplifier Design Class D Power Rating 1000 W Peak Dimensions (H x W x D) 575 x 684 x 683 (mm) 22.62 x 26.92 x 26.89 (in) Net Weight 39..