Cadence Acoustics XW12D4 12-Inch 700 Watt Peak Dual Voice Coil 4 Ohm Subwoofer Cadence XW12D4 12" 4 ohm DVC subwoofer Power Handling: 200W RMS/400W Peak/700W XENITH Power Frequency Response: 28Hz - 1.2 kHz Sensitivity: 87dB @ 1w/1m SPL Mounting Depth: 5"