provided by Likos1984 from the Hififorum

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

Profisound PA-900

1 × 57 Watts channel 1 at 4 Ohm
2 × 56 Watts channel 1 + 2 at 4 Ohm
4 × 51 Watts channel 1 up to 4 at 4 Ohm
4 × 48 Watts channel 1 up to 6 at 4 Ohm

4 × 41 Watts channel 3 up to 6 at 4 Ohm +
1 × 164 Watts channel 1 + 2 bridged at 4 Ohm

328 watts total power