I am trying to decide if I would benefit from investing in a decent DAC. I have a 5K iMac as a source. I recently purchased HD650s and a Rupert Neve RNHP amplifier. I also have an old Audio Quest Dragon Fly Red that I was using with a different computer with Audience speakers. I am having...

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...