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

Nakamichi PA2100

1 × 145 watts, channel 1 at 4 Ohm
2 × 138 watts, channel 1 + 2 at 4 Ohm

1 × 454 watts, channel 1 + 2 bridged at 4 Ohm

454 watts total power