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

ESX Q402

1 × 110 watts, channel 1 at 4 Ohm
2 × 99 watts, channel 1 + 2 at 4 Ohm
Current consumption 22,2A
efficiency 66,1%

1 × 296 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 38,2A
efficiency 57,4%

296 watts total power