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

Mac Audio Mac Thunder 240

1 × 43 watts, channel 1 at 4 Ohm
2 × 37 watts, channel 1 + 2 at 4 Ohm
Current consumption 9,8A
efficiency 60%

1 × 121 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 17A
efficiency 52,7%

121 watts total power