For 8 Ohms load there are no data for PBTL mono mode in datasheet and i can't find measurement at 48V online.

If we presume half Max power of 4 Ohm PBTL, 260/2, 130W, equals cca 4A current, so 5A PSU is enough in this case.

Edit:

There is PBTL mono mode Measurement @8 Ohm 48V in this thread , I am blind.

Amir measurement for Fosi V3 Mono Max Power 1% THD (Watts): 122-126W, equals cca 4A current, so 5A PSU is enough in this case.

If we presume half Max power of 4 Ohm PBTL, 260/2, 130W, equals cca 4A current, so 5A PSU is enough in this case.

Edit:

There is PBTL mono mode Measurement @8 Ohm 48V in this thread , I am blind.

Amir measurement for Fosi V3 Mono Max Power 1% THD (Watts): 122-126W, equals cca 4A current, so 5A PSU is enough in this case.

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