Has anybody bought or heard a Chinese knock off amplifier?

@hiendmmoe 
I bout one expensive, very heavy “Accuphase inspired” China class A amp, which has different China Brand name on it. I inspected components inside, tested it for distortions, output impedance etc, and I didn’t find anything wrong with the amp. Amp has two 700VA toroidal transformers, feeding two separated power supplies for left and right channels. Amp is using Japan made electrolytic, well matched US made power transistors (40 total), and CNC machined enclosure. Amp is NOT Accuphase replica or copy, it has only Accuphase feel. Overall outside look and details are less refined comparing to Accuphase. Internal boards built of expensive “black” material, wiring and layout is very good. Amp has no noise, acoustically and from the speakers, and it is not possible to tell if it is on or off without looking at power LED.
Comparing to original Accuphase class A amp, it sounds little bit more beefy, but little bit less transparent at high freq. end. It beats many US/EU amplifiers, even significantly expensive ones.

To summarize: there are good, very good and bad things come out of China, it is a lottery! 

@davetheoilguy +1 Chinas power is built by “stupid and greedy” US/.. companies!

@webking185 +1 I have one Accuphase A-70 “inspired” Chinese amp, A class, it’s very good, measured and sounds! But.. it took me two months discussing with them what need to be done in details..

@glupson "...buy American so your home don’t burn down.” I am guilty, :-), I am buying “made in China” Apple iphones, computers and many other things.. as of HiFi related cables, typically China’s brands require some additional work to do to make them good! I have personal Audio Lab with all tools/test to make sure everything I use is up to spec.