12" Dual 4 ohm Chaos Exxtreme Series Subwoofer Power Handling: Peak: 1500 watts RMS: 750 watts Impedance: Dual 4 Ohm Polypropylene injection molded cone Butyl rubber surround Silver spring binding posts Sturdy black steel basket 2" High temperature kapton voice coil Magnet with a black protective cover Frequency response: 25-2,000 Hz Sensitivity: 95 dB Authorized Internet Dealer