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

Soundstream Human Reign HR4

1 × 156 watts, channel 1 at 4 Ohm
2 × 156 watts, channel 1 + 2 at 4 Ohm
4 × 156 watts, channel 1 up to 4 at 4 Ohm with 13,4V supply voltage
Current consumption 68,8A
efficiency 67,8%

1 × 576 watts, channel 1 + 2 bridged at 4 Ohm
2 × 576 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 138,1A
efficiency 62,3%

1152 watts total power