provided by gisewhcs from the Hififorum

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

Alphasonik HBX-2150

1 × 182 watts, channel 1 at 4 Ohm
2 × 182 watts, channel 1 + 2 at 4 Ohm
Current consumption 47,5A
efficiency 56,8%

1 × 702 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 105A
efficiency 49,5%

702 watts total power