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

RTO Mark 1.4

1 × 18 watts, channel 1 at 4 Ohm
2 × 18 watts, channel 1 + 2 at 4 Ohm
4 × 17 watts, channel 1 up to 4 at 4 Ohm
Current consumption 7,5A
efficiency 66,4%

68 watts total power