Lanzar DCTS151 Distinct S Series 2000 Watt 15-Inch High Power 4 Ohm Voice Coil Subwoofer Power Handing: 1000 Watts RMS/2000 Watts Peak - Big Foam Surround 15" Black Non-Pressed Paper Cone - 50 oz. x2 High Density Barium Ferrite Magnet 2.5" (64mm) High Temperature Aluminum Voice Coil - Sensitivity: 902dB (1w/1m) Silver Push-In Terminals - Stamped Steel Basket - Impedance: Dual 4 Ohm Voice Coil Overall Diameter: 15.35" - Cutout Diameter: 13.82" - Mounting Depth: 5.47" - Frequency Response: 26-1.5kHz