Cadence Acoustics CW126-D4 2400 Watt Peak 12-Inch Dual Voice Coil 4 Ohm Subwoofer RMS Power: 600 Watts/PEAK Power: 2400 Watts Frequency Response: 26Hz - 1.5 kHz Sensitivity: 96dB System Impedance: DVC 4 Ohms Mounting Depth: 5.7 inches