Hifonics Zeus ZRX1000.4 1000 Watt 4-Channel A/B Car Audio Amplifier With Nickel-Plated Input Terminals and Speaker Short Protection New Hifonics ZRX1000.4 1000 Watt RMS 4 Channel Car Amplifier 125 Watt x 4 Channel @ 4 Ohm 250 Watt x 4 Channel @ 2 Ohm 500 Watt x 2 Channel @ 4 Ohm Bridged Class A/B