provided by TimTaler from the Hififorum

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

Caliber CA300

1 × 182 watts, channel 1 at 4 Ohm
2 × 159 watts, channel 1 + 2 at 4 Ohm
Current consumption 38A
efficiency 61,9%

1 × 445 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 62,1A
efficiency 53,1%

1 × 456 watts, channel 1 + 2 bridged at 2 Ohm
Current consumption 68,2A
efficiency 49,5%

456 watts total power