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

Alpine PDX-1.1000

1 × 1024 watts, channel 1 at 4 Ohm with 13,4V supply voltage
Current consumption 92,8A
efficiency 82,4%

1 × 1058 watts, channel 1 at 2 Ohm with 13,4V supply voltage
Current consumption 99,5A
efficiency 79,4%

1058 watts total power

measured up to the clipping limit at 100 Hz because of fixed preset low-pass filter