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

Rockford Fosgate T15004

1 × 339 watts, channel 1 at 4 Ohm
2 × 324 watts, channel 1 + 2 at 4 Ohm
4 × 289 watts, channel 1 up to 4 at 4 Ohm with 13,4V supply voltage
Current consumption 126A
efficiency 68,5%

1 × 1122 watts, channel 1 + 2 bridged at 4 Ohmbei 13,4V supply voltage
2 × 870 watts, channel 1 + 2 and 3 + 4 bridged at 4 Ohm with 13,3V supply voltage
Current consumption 220A
efficiency 59,5%

1-Ohm Betrieb nicht gemessen, wegen zu schwacher Stromversorgung (extern)