PRV Audio QS800.4 2-Ohm Compact 4 Channel Car Audio Amplifier 4 x 220 Watts RMS
Rated RMS Power at 14.0 V at 2 Ohm. Rated RMS Power at 14.0 V at 4 Ohm. 2 Channel Bridged – double the power output to your speakers by bridging two channels. Minimum impedance of 4 Ohms per bridged channel at output power of 2 x 450 Watts RMS.