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

Macrom M1A.4150

1 × 99 watts, channel 1 at 4 Ohm
2 × 94 watts, channel 1 + 2 at 4 Ohm
4 × 86 watts, channel 1 up to 4 at 4 Ohm
Current consumption 39,8A
efficiency 64,4%

1 × 317 watts, channel 1 + 2 bridged at 4 Ohm
2 × 266 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 70,1A
efficiency 56,6%

532 watts total power