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

Ground Zero GZUA 2250S

1 × 169 watts, channel 1 at 4 Ohm
2 × 169 watts, channel 1 + 2 at 4 Ohm with 13,7V supply voltage
Current consumption 35A
efficiency 70,5%

1 × 548 watts, channel 1 + 2 bridged at 4 Ohm with 13,6V supply voltage
Current consumption 62,8A
efficiency 64,1%

548 watts total power