I use an old Shunyata Hydra 4 and plug only the CD transport source into it - everything else goes to the wall which is a dedicated line. The CD transport cable is an old Shunyata Alpha V2 NR which has always been composed and slightly treble polished. All other components go straight to the wall via Level 3 Anticables. Recently, 3 of my newer components have finally broken in, so there has been the usual rearrangement of cables and interconnects which as everybody here knows can be suspenseful and tedious but usually well worth the attention.
This audiophile thing improves hearing acuity and sensitivity over time as my wife will attest to - she definitely can tell that my hearing has improved not structurally but in the way I pay more attention to all sounds - not just music. I have become as everybody else here a "hearer."