provided by Denyo-evo from the Hififorum

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

Steg QM220.2x

1 × 259 watts, channel 1 at 4 Ohm
2 × 250 watts, channel 1 + 2 at 4 Ohm
Current consumption 56,5A
efficiency 65,5%

1 × 888 watts, channel 1 + 2 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 112,3A
efficiency 59%

888 watts total power

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

Steg QM220.2x

1 × 261 watts, channel 1 at 4 Ohm
2 × 250 watts, channel 1 + 2 at 4 Ohm
Current consumption 52,7A
efficiency 70,2%

1 × 870 watts, channel 1 + 2 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 103,3A
efficiency 62,9%

870 watts total power