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

Lightning Audio B2.350.1

1 × 256 watts, channel 1 at 4 Ohm
Current consumption 28,2A
efficiency 67,2%

1 × 406 watts, channel 1 at 2 Ohm
Current consumption 49A
efficiency 61,4%

406 watts total power

measured up to the clipping limit at 100 Hz because of fixed preset low-pass filter