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

Soundstream Van Gogh VGA 500.4

1 × 136 watts, channel 1 at 4 Ohm
2 × 136 watts, channel 1 + 2 at 4 Ohm
4 × 136 watts, channel 1 up to 4 at 4 Ohm with 13,4V supply voltage
Current consumption 61,7A
efficiency 65,7%

1 × 497 watts, channel 1 + 2 bridged at 4 Ohm
2 × 484 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm with 13,3V supply voltage
Current consumption 121A
efficiency 60,2%

968 watts total power