provided by gisewhcs from the Hififorum

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

Planet Audio P-500

1 × 81 watts, channel 1 at 4 Ohm
2 × 78 watts, channel 1 + 2 at 4 Ohm
4 × 64 watts, channel 1 up to 4 at 4 Ohm

4 × 49 watts, channel 1 up to 4 at 4 Ohm +
1 × 196 Watts channel 5 at 4 Ohm
Current consumption 60A
efficiency 48,4%

4 × 36 watts, channel 1 up to 4 at 4 Ohm +
1 × 288 Watts channel 5 at 2 Ohm
Current consumption 78A
efficiency 41%

432 watts total power

measured with 200 Hz because of fixed preset low-pass filter with channel 5