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

Audio System ADS 5004

1 × 55 watts, channel 1 at 4 Ohm
2 × 54 watts, channel 1 + 2 at 4 Ohm
4 × 47 watts, channel 1 up to 4 at 4 Ohm
Current consumption 23,5A
efficiency 59,2%

1 × 166 watts, channel 1 + 2 bridged at 4 Ohm
2 × 128 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 37,7A
efficiency 50,2%

256 watts total power

measured with 100 Hz because of fixed preset low-pass filter for channel 3+4