Planet Audio TQ120DVC 12-Inch Poly Injection Cone 4-OHM Dual Voice Coils DVC Subwoofer (Black) Power Handling (Peak) 400W , Power Handling (Contin.) 200W , Freq. Response 28Hz- 2Khz , Efficiency (1 Watt/1 Meter) 95Db , Impedance Dual 4 Ohm , Magnet Structure 100 Oz , Voice Coil Former 2" Mounting Depth - 6-1/8-Inch 12-Inch Dual Voice Coil Subwoofer Black Poly-Injection Cone Butyl Rubber Surround Open Design-Inch Stamped Basket Dual Voice Coil  Custom Magnet Cover