PRV Audio QS800.4 2 Ohm Compact 4 Channel Car Audio Amplifier 4 x 220 Watts RMS at 2 Ohm - 800 Watt Amp High Power Stereo 12 volts Amp Class D Full Range Bridgeable4x 220 watts TRUE RMS certified at full range output Digital Class D Brazilian Technology 4 Channel car audio amplifier stable at 2 Ohm gives you the benefit of wiring multiple speakers and dividing the power per channel. Engineered to be the most efficient full range amplifier so that you can get the most out of your vehicles electrical system! A small footprint and compact chassis make this amplifier easy to install anywhere in the vehicle: 8 Wide x