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

Sioux XA3000.2

1 × 181 watts, channel 1 at 4 Ohm
2 × 178 watts, channel 1 + 2 at 4 Ohm
Current consumption 38A
efficiency 69,5%

1 × 562 watts, channel 1 + 2 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 67,6A
efficiency 62%

562 watts total power