This entry-level XED series subwoofer from Cerwin-Vega Mobile is the perfect upgrade to your stock system when you are looking for some low-end bass to complement the rest of your sound system. The Xtreme Energy Design XED12 model is a 12" SVC 4-ohm subwoofer that is built to play in any prefabricated or custom enclosure design. Mounting depth is 5.23". Constructed with a parabolic polypropylene cone and utilizing a unique foam-blend high roll surround for accurate bass reproduction, count on the XED series subwoofer to perform all day long!