listening fatigue

Hi. I ordered the S.M.S.L. SU-1 Dac based in all good reviews, maybe it could replace my current Dac which is an Arturia Minifuse 2 audio interface (both connected via USB since i dont have any other options in my gear), at least for listening to music. It sounds good in my system even though...

Venerated Audiophiles - I come seeking wisdom. Always loved music - but since WFH - have gotten back into it and have been on a fun audio journey to setup the perfect WFH desktop setup. Right now - trying to solve for smoothness & listening fatigue I tried a few speakers - Klipsch (headache)...

What may be causing harshness and annoying sound in my setup? it happens in any music I listen to on my pc, any format and any player I try. I make it clear that I don't talk about noticeable noises or sound distortions (ground loop and stuff like that, I think), I'm also not listening at high...