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

Blaupunkt GTA 250

1 × 52 watts, channel 1 at 4 Ohm
2 × 48 watts, channel 1 + 2 at 4 Ohm

1 × 142 watts, channel 1 + 2 bridged at 4 Ohm

142 watts total power