provided by TimTaler from the Hififorum

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

Earthquake PA-2150

1 × 222 watts, channel 1 at 4 Ohm
2 × 222 watts, channel 1 + 2 at 4 Ohm with 13,4V supply voltage
Current consumption 60,8A
efficiency 54,5%

1 × 784 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 119A
efficiency 48,8%

784 watts total power