Mechans is partially correct regarding Shengya.
To elaborate from my previous posting, I bought the CD player Shengya S10CS from local Chinatown electronics dealer that's been around for at least a decade. This place is legitimate, there lots of customers and dedicated listening rooms and not some dark back alley where goods are purchased out of a van.
The price I paid was more than a 2x lower than the MSRP of the comparable model to the Vincent S6 that was praised by soundstage a few months ago.
Suspiciously, I actually asked to opened up & take a look "under the hood" before I purchased and found the Shengya's specs to be 90% of the Vincent model. Shengya has a different torodial transformer and 2 of tubes types used were different from Vincent. But I would say the differences are more like Acura TSX vs. Honda Euro Accord (basically same inards with different tweaks & upgrades for local market)
Most of all to my surprise CD player was 120V (not modded from dealer as this was also confirmed on the factory box it came in). Previous to that I thought as Mechans did...ie. Shengya is only 220V.
Though I have not heard the Vincent S6. If, I was asked to describe the sonic attributes of the Shengya, it would be exactly how Soundstage reviewed the Vincent S6.
Time will only tell if I bought a lemon or "grey market", but I tell you at multiples the msrp, it was a no brainer for me to roll the dice on the purchase.