Planet Audio TQ12 12-Inch Poly Injection Cone 4-OHM Single Voice Coil SVC Subwoofer (Black) Power Handling (Peak) 300W , Power Handling (Contin.) 150W , Freq. Response 20Hz- 2Khz , Efficiency (1 Watt/1 Meter) 96Db , Impedance Dual 4 Ohm , Magnet Structure 40 Oz , Voice Coil Former 2" Mounting Depth - 5-13/16-Inch 12-Inch Subwoofer Black Poly-Injection Cone Butyl Rubber Surround Open Design-Inch Stamped Basket