provided by Fabian aus dem Epicenter-Forum

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

Ultra Drive UDA 6/170

1 × 48 watts, channel 1 at 4 Ohm
2 × 44 watts, channel 1 + 2 at 4 Ohm
4 × 38 watts, channel 1 up to 4 at 4 Ohm
Current consumption 19,5A
efficiency 57,5%

4 × 38 watts, channel 1 up to 4 at 4 Ohm +
2 × 59 Watts channel 5 + 6 at 4 Ohm
Current consumption 34,8A
efficiency 57,1%

4 × 37 watts, channel 1 up to 4 at 4 Ohm +
1 × 182 Watts channel 5 + 6 bridged at 4 Ohm
Current consumption 44,8A
efficiency 54,7%

330 watts total power

measured with 150 Hz because of fixed preset low-pass filter for channel 5 + 6