This is a PowerBass 3XL-101D high-performance 1500 watt 10 inch car audio subwoofer. Featuring a dual 1-ohm, 3" inch voice-coil this class "D" professional subwoofer can pound out an amazing 1500 watts total power (750 watts RMS). Also featured, are large pro-lock terminals. These terminals enable you to wire this powerful sub with large gauge cables into a 1-ohm load. The non-pressed raw pulp cone, high-roll treated foam surround, extra-large 453 ounce double-stacked motor assembly and cast aluminum basket; allow this powerful subwoofer to produce more excursion without bottoming out and cooler temperatures. This equals deeper bass and higher SPL levels. Other features include: inverted X dustcap, CNC billet aluminum trim ring and perimeter venting to keep your subwoofer cool at extreme temperatures.