provided by WarlordXXL from the Hififorum

Rated power measured according to DIN 45500 up to 1% distortion factor in 13,5V

US Acoustics USA2200

1 × 264 watts, channel 1 at 4 Ohm
2 × 240 watts, channel 1 + 2 at 4 Ohm
Current consumption 59A
efficiency 60,3%

1 × 756 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 96A
efficiency 58,4%

756 watts total power