provided by escort_fahrer32 from the Hififorum

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

Mac Audio MP4000

1 × 63 watts, channel 1 at 4 Ohm
2 × 59 watts, channel 1 + 2 at 4 Ohm
4 × 54 watts, channel 1 up to 4 at 4 Ohm
Current consumption 26,7A
efficiency 60%

1 × 174 watts, channel 1 + 2 bridged at 4 Ohm
2 × 121 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 38,2A
efficiency 46,9%

242 watts total power