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

Pioneer GM-X942

1 × 116 watts, channel 1 at 4 Ohm
2 × 104 watts, channel 1 + 2 at 4 Ohm
Current consumption 25,8A
efficiency 59,7%

1 × 317 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 45,4A
efficiency 51,7%

317 watts total power