Best PC to use as a Server

I’m really new to digital, though an old analog hand. My impression is that a lot of folks think that general utility computers are not going to sound as good as purpose built audiophile type servers, even though those are computers too.
I’m still in the early throes of exploring all this for the first time. I have gotten a good Redbook transport, which most people seem to think is unnecessary, a modest NOS DAC, and set up a Mac Mini, tried to strip it down and adjust the settings according to some ’best practices’ I found on the web.
In the course of my research, which is continuing, I saw that HDPLEX offers builds that are meant for audio-- linear power supply, SSD and no excess stuff (though I can’t remember the operating system, if it is Windows, it’s gonna have a lot of bloat in it- how that impacts sound, I dunno). NB- a quick look disclosed some use a Windows server system, which is probably stripped down.

 Be interested to see what the responses are to this. So count me in on your side of the question, rather than providing any good answer.

I have used Macs as a source, but also Bluesound (Vault2 and Node)
and also my Oppo disc spinners will recognize my NAS.  Sonically, I prefer the Bluesound and the Oppo.  If you think about it, renderers such as Bluesound should sound better than a PC, since they have much bigger Power supplies and their parts are optimized for music replay, instead of general purpose computing.
  I think that you will find that the quality of the experience of file based listening (i.e., Computer Audio) is largely determined by the quality of the App that organizes the files.  Most of the apps are terrible for Classical Music, which is what I listen to.  The best is MusiCHI, but it’s Windows based.  I have no interest in using a program such as Parallels, that splits a Mac OS into a Windows and Mac environment, having had a bad experience with that before.
  We may not get a lot of responses here.  I might ask the same question on the Computer Audiophile Forum, which you might want to investigate as well.