Chinese Class A SS

I read a while back that a member on here replaced his mbl 9008a with a douk amp I think his name is jaynewt.

I would be extremely skeptical of any Chinese amp professing finer components. China is the source for most of the counterfeits labeled with those brands. 

Your concern WAS valid years ago when the influx of chinese gear started but the bad guys where quickly weeded out..I have owned several pieces from Cayin and Yaqin and they where all well built and the parts genuine...

I would avoid broad brushing all Chinese audio products.  There does exist a hierarchy of quality components/manufacturers as with virtually every other country. I'd recommend doing some research and gain more information on these class A solid state amplifiers. I'm unfamiliar with them but do know that there are very good quality tube amplifiers available from China just as there's poorer quality examples as well. 
Charles