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

Steg QM120.2x

1 × 136 watts, channel 1 at 4 Ohm
2 × 129 watts, channel 1 + 2 at 4 Ohm
Current consumption 29,2A
efficiency 65,9%

1 × 424 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 54,3A
efficiency 58,8%

424 watts total power