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

Macrom SynPower SP4.050x

1 × 71 watts, channel 1 at 4 Ohm
2 × 66 watts, channel 1 + 2 at 4 Ohm
4 × 59 watts, channel 1 up to 4 at 4 Ohm
Current consumption 28,8A
efficiency 60,2%

1 × 219 watts, channel 1 + 2 bridged at 4 Ohm
2 × 177 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 50,8A
efficiency 51,6%

354 watts total power