provided by Reminder01 from the Hififorum

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

Steg AQ75.4x

1 × 81 Watts channel 1 at 4 Ohm
2 × 81 Watts channel 1 + 2 at 4 Ohm
4 × 74 Watts channel 1 up to 4 at 4 Ohm

1 × 272 Watts channel 1 + 2 bridged at 4 Ohm
2 × 234 Watts channel 1 + 2 and 3 + 4 bridged at 4 Ohm

468 watts total power