CERWIN VEGA HED3600.4 600-Watt 600W 4-Channel 40X4 4-Ohm Power Amplifier CERWIN VEGA 600W MAX 4CH 40X4 @4 OHM CERWIN VEGA 600W MAX 4CH 40X4 @4 OHM CERWIN VEGA 600W MAX 4CH 40X4 @4 OHM 600W Max 4Ch 40X4 4 Ohm