I did a lot of optimizations (tweaking for some) in my digital stack. Placing a Network Acoustics Muon Pro Ethernet filter and cable (Streaming Pro) has yielded a much more organic and less shouty (harsh) sound.
DAC’s do not like it when high frequency noise is injected via USB / Ethernet or the power grid (use a very good power cable).
I cannot recommend the Streaming Pro high enough…
But, a very low noise music server is the source, that should be noise free to begin with.