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

Sony XM-5026

1 × 94 watts, channel 1 at 4 Ohm
2 × 86 watts, channel 1 + 2 at 4 Ohm
Current consumption 18,7A
efficiency 68,5%

1 × 269 watts, channel 1 + 2 bridged at 4 Ohm
Current consumption 33A
efficiency 60,4%

1 × 338 watts, channel 1 + 2 bridged at 2 Ohm
Current consumption 50,5A
efficiency 49,6%

338 watts total power