I currently have an Aune S16 and Colorfly C4. Ordered the Sony TA-ZH1ES but tbh I cant notice much difference to the S16. Going to do some more blind testing later but I think its waaaaay overpriced and not worth keeping. So I'm looking to some of these to either add as an amp to the S16...

Disclaimer: I don't intend this post to be the ultimate "mid-price" buying guide. It will only include my very own impressions about the DAC/amp mentioned, there will be no graphs nor detailed reviews – many great head-fiers have done that before me. The idea only stemmed from my sudden...