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

Kenwood KAC-820

1 × 86 watts, channel 1 at 4 Ohm
2 × 72 watts, channel 1 + 2 at 4 Ohm
Current consumption 19,9A
efficiency 53,8%

2 × 78 watts, channel 1 + 2 at 2 Ohm
Current consumption 28,5A
efficiency 40,6%

156 watts total power