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

Hertz H420

1 × 90 watts, channel 1 at 4 Ohm
2 × 86 watts, channel 1 + 2 at 4 Ohm
4 × 74 watts, channel 1 up to 4 at 4 Ohm
Current consumption 36,8A
efficiency 59,6%

1 × 262 watts, channel 1 + 2 bridged at 4 Ohm
2 × 202 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 59,7A
efficiency 50%

404 watts total power