Thanks for the replies. I don't own ADI-2 DAC FS yet.
Would the older ADI-2 PRO FS be better or worse SQ wise (headphones/speakers)? I suspect not better. One used is available.
When it arrives I can compare it to my current Asus Xonar Essence One MUSES Edition (upgraded to MKII) but that's it.
Do you think PSU upgrade would make it even better? Even some real reviewers say it deserves better PSU and it can be changed. Some say it made a big difference and some say nothing at all. But then comes the talk about power cables with as large improvements, and I closed the site.
I was actually thinking the same. Based on what I remember. So I was thinking if they are talking about headphone amp etc. but I don't think that was the case. But it's not the first time I read about it, and not the first site.