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

Alpine MRV-F450

1 × 95 watts, channel 1 at 4 Ohm
2 × 89 watts, channel 1 + 2 at 4 Ohm
4 × 77 watts, channel 1 up to 4 at 4 Ohm

4 × 62 watts, channel 1 up to 4 at 4 Ohm +
1 × 225 Watts channel 5 at 4 Ohm with 13,4V supply voltage
Current consumption 64,8A
efficiency 54,3%

2 × 180 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm +
1 × 180 Watts channel 5 at 4 Ohm with 13,4V supply voltage
Current consumption 83,7A
efficiency 48%

540 watts total power