12" Dual 4 Ohms DVC L7 Series Subwoofer Power Handling: Peak: 1500 watts RMS: 750 watts Impedance: Dual 4 ohms Aluminum deposit cone -- a beautiful look with less cone flex and less distortion Santoprene rubber surround Rear-cone brace for added strength to reduce cone flex under stress Massive surround radius provides increased excursion for low bass output and higher SPL BAM (Basket and Motor) Enhanced Assembly: new for 2004 -- cast aluminum basket featuring low profile/open design that provides a solid anti-resonant foundation for the motor assembly Perimeter venting which relieves pressure for a more linear response and aids in keeping the voice coils cool Patent Pending Stitched Surround that aids in preventing cone/surround separation at high excursions Sleeved high-power tinsel lead wires to resist lead breakage Spring-loaded nickel plated terminals for solid connections with large gauge speaker wire Authorized Internet Dealer