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

Phoenix Gold ZX450

1 × 132 watts, channel 1 at 4 Ohm
2 × 123 watts, channel 1 + 2 at 4 Ohm
4 × 105 watts, channel 1 up to 4 at 4 Ohm
Current consumption 52,9A
efficiency 58,9%

1 × 376 watts, channel 1 + 2 bridged at 4 Ohm
2 × 289 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 84,2A
efficiency 51,2%

578 watts total power