I’m not sure (and please, no “Idfk”) what the 15% difference entails either, so I rely on the reviewer’s insights. I’m pointing you to that information to support that the additional $1,000 you’ve invested is worthwhile. Nevertheless, the reviewer has thoughtfully provided a great alternative to the X30 for system matching (tune in 12:30). After all, I’d bet he’s the only one here who has heard both units, and I’ve found his reviews to be spot-on most of the time.
As for where the gear is made, that matters the least. What truly matters is who designs the gear and the quality control behind it.