Rockville 10" 500W Powered Subwoofer Bass Remote, 10 inch (RTB10A) Rockville RTB10A 10&quot; 500w Powered Subwoofer With Bass Remote. 500 Watts Peak/250 Watts RMS. 10&quot; High power woofer in vented tubular enclosure. Integrated, built-in 250 Watts RMS Rated amplifier. Rear aero vent bass system. Speaker level and RCA line-level input. Frequency response: 30Hz-200Hz. Sensitivity: 108 dB. Adjustable bass crossover. Dashboard adjustable bass remote control. Molded steel woofer grill. Four steel mounting brackets + two canvas straps with Velcro fasteners. Tube is covered in durable aviation grade tweed with embroidered logo. Dimensions: 10.75&quot; x 20.86&quot;.