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

Spectron SPA4000L

1 × 59 Watts channel 1 at 4 Ohm
2 × 59 Watts channel 1 + 2 at 4 Ohm
4 × 58 Watts channel 1 up to 4 at 4 Ohm

1 × 182 Watts channel 1 + 2 bridged at 4 Ohm
2 × 159 Watts channel 1 + 2 and 3 + 4 bridged at 4 Ohm

318 watts total power