provided by MuMpel from the Hififorum

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

JBL DA3504

1 × 53 watts, channel 1 at 4 Ohm
2 × 50 watts, channel 1 + 2 at 4 Ohm
4 × 44 watts, channel 1 up to 4 at 4 Ohm
Current consumption 21,8A
efficiency 60,1%

1 × 151 watts, channel 1 + 2 bridged at 4 Ohm
2 × 125 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 37,2A
efficiency 50%

250 watts total power

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

JBL DA3504

1 × 53 watts, channel 1 at 4 Ohm
2 × 50 watts, channel 1 + 2 at 4 Ohm
4 × 45 watts, channel 1 up to 4 at 4 Ohm
Current consumption 22A
efficiency 60,5%

1 × 156 watts, channel 1 + 2 bridged at 4 Ohm
2 × 132 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm
Current consumption 37,6A
efficiency 52,1%

264 watts total power