Rated power measured according to DIN 45500 up to 1% distortion factor in 13,5VRockford Fosgate Punch 60ix DSM1 × 87 watts, channel 1 at 4 Ohm2 × 87 watts, channel 1 + 2 at 4 OhmCurrent consumption 18,8Aefficiency 68,9%1 × 266 watts, channel 1 + 2 bridged at 4 OhmCurrent consumption 33Aefficiency 59,6%1 × 348 watts, channel 1 + 2 bridged at 2 OhmCurrent consumption 52Aefficiency 49,6%348 watts total power