Hello
I just wanted to say that I mostly buy my stuff from Usa :
Amplifier and preamplifier .
Reason :
The product are very well done and at very good price ( better than in europe ) and most of all the support is really 5 star from most of the source I had and I do not believe I can have the same kind of support in Chian or Europe . When you buy Hi end product I believe you really need support some times .
I have products from :
Ava ( Van alstine) : Franck Van alstine makes very affordable product for a very high quality . the support is very professionnlal ( I have a T8 tube preamplifier ) .
Audio Mirror : Vlad give also a godd support and is very helpful ( 60 watts tube amplifier )
Mapletree : the tube preamplifier Ultra 4 A is a very nice product also and also very affrodable with a nice phono section .
So even if I am French I would say by in USA you would not regret it !
Gerard