I use a dedicated PC (mini X) with a dedicated player. My library is on an external HDD. The output from the PC goes to an external DAC via a re-clocker.
The sound is very good, bordering on excellent.
As to hi-res and remasters, etc, I confirm @yage ’s comment above: you’ll often find flattened dynamics in exchange for somewhat extended FR- often not even that.
On the contrary, however, I find that many classical music remasters of historical performances are quite good, especially the work done on the sacd versions.