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

Sony XES-M1

1 × 81 watts, channel 1 at 4 Ohm
2 × 76 watts, channel 1 + 2 at 4 Ohm
Current consumption 18,1A
efficiency 62%

2 × 114 watts, channel 1 + 2 at 2 Ohm
Current consumption 30,6A
efficiency 55,2%

228 watts total power