Accuphase E-560 Voltage Conversion 100v to 230v

Hello All

I have just placed an order with a Japanese company to supply me with an Accuphase E-560 Integrated Amplifier. The obvious reason to order a Japanese (100v) Model is Price. I need to use it in the UK (230v 50hz). My initial thought was to use it with a Step down Transformer. However, I am getting increasingly concerned with idea.

I would really appreciate if someone can share their experience on the following:

1. Is there a performance issue with Step Down Transformer.
2. Has anyone used a Balanced Power supply with this Amp.
3. Advice on choosing Step down transformer.

And Most importantly:

4. Can it be converted to work on Higher Main Voltage of UK/EU/US.

Please share your thoughts.

Thanks

Kam