Cerwin-Vega CLSC-12S Classic Series 12-Inch 250-Watt Powered Subwoofer, Black Ash (Discontinued by Manufacturer) 250-watt powered subwoofer with black ash enclosure for deep, powerful bass response 12-inch high-excursion woofer with cast-aluminum frame and fiber-impregnated cellulose cone 28 to 150 Hz frequency response; continuously variable crossover from 40 to 150 Hz Includes speaker-level, line-level, and unfiltered LFE inputs; adjustable level control Auto on/off sensing; measures 17 x 19 x 17 inches (W x H x D); 5-year warranty