Definitive Technology Descend DN12 12 Powered SubwooferDN12 Ultra-Performance, 1500W 12 Subwoofer with Dual 12 Bass RadiatorsLoaded with custom technologies such as 3XR™ Architecture and Intelligent Phase Control™, the DN12 delivers extraordinary bass into any system.More Bass from the Same SpaceThe DN12’s unique 3XR Architecture provides triple the bass-producing surface area of a traditional 12” ported subwoofer. This extra surface area moves more air, resulting in massive low end. And because 3XR doesn’t use ports, it also provides crysta