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

Zapco Z600C2-SL

1 × 210 watts, channel 1 at 4 Ohm
2 × 210 watts, channel 1 + 2 at 4 Ohm
Current consumption 49,8A
efficiency 62,6%

1 × 645 watts, channel 1 + 2 bridged at 4 Ohm with 13,4V supply voltage
Current consumption 87,1A
efficiency 55,3%

1 × 714 watts, channel 1 + 2 bridged at 2 Ohm with 13,4V supply voltage
Current consumption 116A
efficiency 46%

714 watts total power