Autotek 1000W 2CH Class AB AMP SMA1000.2 Autotek SMA1000.2 1000 Watt 2 Channel Amplifier 2 Ohms: 2 X 500 Watts 4 Ohms: 2 x 250 Watts Mono Bridged @ 4 Ohms: 1 x 1000 Watts Frequency Response: 10Hz-45KHz