Athena AS-P400 10-Inch 400-Watt Peak Subwoofer, Black Ash/Silver (Discontinued by Manufacturer) Powered subwoofer with 10-inch, high-excursion, injection-molded polypropylene driver with durable rubber Delivers 100 watts RMS, 400 watts peak power output; 23 Hz to 120 Hz frequency response Exclusive SCT technology provides easy-set crossover points for seamlessly matching other Audition speakers Convenient front-mounted controls and front-firing port grant extra placement flexibility Variable 40 to 120 Hz crossover; measures 11.4 x 18.5 x 15.4 inches (W x H x D); 5-year warranty