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

Eton EC 500.4S

1 × 65 watts, channel 1 at 4 Ohm
2 × 63 watts, channel 1 + 2 at 4 Ohm

2 × 62 watts, channel 1 + 2 at 4 Ohm +
2 × 111 Watts channel 3 + 4 at 4 Ohm
Current consumption 39,2A
efficiency 65,4%

2 × 97 watts, channel 1 + 2 at 2 Ohm +
2 × 182 Watts channel 3 + 4 at 2 Ohm with 13,4V supply voltage
Current consumption 70,2A
efficiency 59,3%

558 watts total power