I would suggest you contact PS Audio Tech support.
Paul PS Audio CEO
If memory serves, yes, that is true. In all Power Plants, we use the same transformer for both 120 and 220 operation. The proper windings are selected. On a more modern P20 or P15, that is handled in a wiring block inside and has to be done at the factory or the distributor. In the older PPP the different power cartridges handled that.
Changing Powerplant Premier input voltage from 110v to 220v
You should be able to change the primary winding from the higher voltage to 120Vac. (Therein, 230V to 115V / 240V to 120V.)
If you have a good reputable Service Tech in your area he should be able to reconfigure the primary winding.
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