provided by FinnDerSchlingel from the Hififorum

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

Kove K4 400

1 × 55 watts, channel 1 at 4 Ohm
2 × 52 watts, channel 1 + 2 at 4 Ohm
4 × 48 watts, channel 1 up to 4 at 4 Ohm
Current consumption 22,8A
efficiency 61,9%

1 × 164 watts, channel 1 + 2 bridged at 4 Ohm
2 × 139 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 39,3A
efficiency 52,5%

278 watts total power