Ultimo12-2ohm - Morel 12" SQ/SPL 2 Ohm 1000 Watt Subwoofer Overall dimensions DxH 305mm (12 ) X 146.9mm (5.78 ) Power handling RMS P 1000 W Transient power 10ms 3000 W Sensitivity 2.83 Vrms / 1M 88 dB Mounting Depth: 5.53"