[AndyPandy]

Not sure - I live in Australia and bought mine from PriceJapan as we don't have a local dealer/distributor (an one official in any event - there are a couple local individuals that each claim to be the distributor). Because it draws only 20 w I'm happy with a quality step down torodial transformer. And the price differential was significant.

I ended up buying my Lux 550 A II from the UK. For full class A, I wanted a correct voltage unit.

I do know that the US distributor for Luxman (On a Higher Note) is highly regarded among the online audiophile community - at least on the forums. Service? Not sure your Lux will ever need anything (they are superbly engineered and build construction is exemplary) but if it does I am sure the local distributor will look after you. Whether it goes to japan or not the turn around time would be much the same: mine was arrived from Japan in 2 days - even with the Earthquake/Tsunami. Of course it spent the next 5 days coming 75 km from the airport...local courier and customs...sigh.
Please let me know how you get on.