I just listed my Chinese DAC on eBay. $375 It's very robust and built with high quality components. It sounds very good and has upgraded high end audio op-amps, separate toroidal transformers based on the ESS9038PRO 32 bit chip. Very configurable up-sampling. I'm going for a more expensive tube r2r type DAC. Check it out under: Audiophile DAC SABRE ESS9038PRO - By Breeze Audio
You can contact via AG under my handle bob7296 if you're interested. I will probably be listing on AG soon.