provided by gisewhcs from the Hififorum

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

Rockford Fosgate Punch 40DSM

1 × 59 watts, channel 1 at 4 Ohm
2 × 56 watts, channel 1 + 2 at 4 Ohm
Current consumption 12,5A
efficiency 66,7%

1 × 174 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 22,3A
efficiency 57,9%

174 watts total power