Just some advice for if anyone goes to Japan..
The FXD80-Z are not so expensive in .. At KS Electronics they retailed about 6600¥ whereas at Yamada Denki they didn't have the FXD80's at all (only everything up to the FXD70's) but I was told that if I wanted to order a pair they would cost about the same. It would be better to purchase a pair for Amazon at about 3800¥. I was able to get another pair for my brother as well amounting to 7200¥ (less than a some people pay for a pair of the same pair of IEMs on ebay or whatnot). They are definitely legitimate because the seller is JVC themselves and it comes in 2 days after order (even on weekends)