Honestly, the SU-8 is your best bet. They just updated the model to "V2" and resolved some previous issues and it is measuring a bit better than before. They're also dropping in price as I picked mine up from Amazon for $199 a couple of days ago. So far, paired with the THX 789 and using with the Elex and Elegia, I can definitely tell a difference going balanced over normally using my iFi nano BL. I haven't really played with many of the filters and things yet and the volume control seems a bit odd at times, but for the cost, I am more than pleasantly surprised at how much I like this unit. I don't have a ton of experience with Chinese brands outside of Fiio or DITA but SMSL so far has left a good impression on me.