SOUND STORM GSW12D GSW12 inch Dual Voice Coil (4 Ohm) 2000-watt Subwoofer One 12" Woofer with Dual 4 ohm 1.5" Copper Voice Coil 2000 Watts MAX 1000 Watts RMS Power Handling 85dB Sensitivity, 34 Hz Resonant Frequency Polypropylene Cone and Rubber Surround Works in .95 CuFt Sealed enclosure 3 Year Platinum Dealer Warranty