Surely you need a step-down (rather than step-up) transformer to go from 220V mains to 120V appliance? If so, the PS Audio 300 has good reviews and you can also vary the frequency - I am condidering one for a CD player
voltage transformer and tube gear
I have tube pre and considering buying a tube amp. I will be posted overseas to a 220v/50hz destination soon and will bring along my toys. Could anyone tell me whether using a step up transformer is all I need or is there more to it than that. I know in the case of turntable we have to be concerned about the difference in hz (50hzvs60hz)but what about amp and pre.