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

Rockford Fosgate Punch 300S

1 × 111 watts, channel 1 at 4 Ohm
2 × 104 watts, channel 1 + 2 at 4 Ohm
Current consumption 21,2A
efficiency 72,7%

1 × 331 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 38,3A
efficiency 64,1%

331 watts total power