Luxman Knockoffs or Counterfeits?

For anyone reading this, I acquired a made-for-US Luxman L-590AXii from a fellow agon member last November, and am totally happy with it's versatility, performance, power and sound. Bass punch is superb. I highly recommend it.

I purchased a Accuphase 380 brand new off of ebay, from a Japanese dealer. I got a brand new amp that list in the states for 9K for 4K. The dealer even got me a 120 volt version. It was shipped in quadruple boxes and it arrived in perfect new condition. Only hurdle was the customs wait. This dealer had several Accuphase models and great prices. I notice now, his accounts is completely gone. 

I have compared both 100V version with transformer and 115V version for 509z and didn't notice any difference. Online resources also indicate that transformer doesn't introduce extra noise (incl PS audio narrative on YT). The only suggestion has been to have enough headroom. I used 1500w small quality transformer to have 5-10x headroom. There was no humm from transformer and it barely got warm. Introducing extra steps in signal path can have deleterious impact on Audio but power just needs conditioner and high quality cables to get RF interference away. Also I tested the noise using a meter from Amazon. Just want d to share with community inclined to save some money. I got mine from eBay Nicology JP. 

I purchased a brand new Accuphase 380 from Japan and the dealer converted the voltage for me. He held my hand through the whole process. The amp arrived in perfect condition. I have not noticed any eBay sellers from Japan offering the voltage conversion on Luxman.