I thought exactly the same thing having a little DAC around is a great utility I think I’ll eventually put it into my video editing system until I find my tube DAC.
I connected the Harmony DAC to ch 1 (I2S ) and my PSA MK 2 (AES) to to ch 2 on my Boulder preamp so I could go back and fourth instantly, there was less difference than I thought when evaluating the Harmony this way. I did like the slightly more analytical presentation of the Harmony better.
@donavabdear - That's a great point! It's something I wanted to hold off saying until I had more time with the Harmony, but the initial reviewers made it sound like it's a life-changing experience, which it is not. I think the words 'inoffensive' and 'enjoyable' come to mind.
Sadly, my preamp only has 1 pair of balanced inputs, but doing an imperfect comparison led me to the same conclusion, which is that it's very, very, slightly different and does its job very well. This also makes me wonder if spending any more on a DAC wouldn't better spent elsewhere.