Looking to buy Luxman 509Z

As a long time Luxman user I can only say be careful with vetting your purchase if you find a second hand unit online. There have been a lot of gray market sellers over the years who convert Japanese-spec 100V units in order to sell them in other regions. The quality of the work is variable but I wouldn't trust any of them.

This probably applies more to older units but I always like to bring it up just in case. 

Appreciate all the replies. 
Ended up going with an Esoteric F-02,
wasn’t able to give the Esoteric a test drive in home so. Although I’ve listened to it many times. 
if it doesn’t work out I’ll try the Luxman 509,
was only able to demo the 505z in home. 

ebay from Japan. But you will have to deal with shipping, customs, tariffs and voltage issues. Not fun.

Dealer discount is likely the best you can do, otherwise a Japanese unit which is likely a pain including voltage conversion.

+1 used  Luxman is a solid well engineered manufacturer