Has anyone shipped things back to China?

You need to include the cost of insurance in your shipping, so that may increase the cost considerably. If you don't have a business discount courier shipping rates are quite high. Assuming you use of the main couriers, i.e. FEDEX, DHL, OOPS (UPS), then you could be looking at 7-14 days even though you send priority. Customs delays into China now are the norm, not the exception. Some of that is for quarantine, some of that is just to be difficult I think.  That assumes the receiver is expedient in their communications with China customs. Ask the receiver for their China Customs registration number and put it on the paper work if you ship back. It's 9 or 10 digits if I remember.

Dump it good luck getting 1k in todays market then move on.

Should you choose to sell, don’t forget to disclose the annoying clicking noise on COAX output to avoid buyer’s remorse and PayPal dispute!
https://forum.audiogon.com/discussions/bluos-server-with-usb-out

@mozartfan I thought I did enough research, lol. I read plenty on it and everyone loves the thing. It actually does sound fantastic and has improved my listening time. But it's got an issue I won't live with. 
Oh well, live and learn. This is the last piece of equipment that I will buy directly from China that isn't super cheap. 

@lalitk 
Of course I would explain why I'm not keeping it. 
Maybe I'm just sensitive, but posting what you did and linking my previous post to it seems like you're calling me out and expecting me to be a dick to a potential buyer. 
That post/query you linked isn't the only place I posted that question. I'm not trying to hide anything.