Nice @hilde45, your link is to a post by Elizabeth. I haven’t seen anything from her in quite some time. I hope she is well.
To the OP, if you want to do something without going down a rabbit hole, I agree the Pangea cords should work well. OFC copper is good, PVC insulation is good for a power cord, and the shielding is excellent, which is important for front-end components. A braid shield typically provides about 80-95 percent coverage but the foil provides 100 percent coverage and having both should make the cord quite immune to picking up EMI/RFI. 14 awg wire size per pole should be plenty for the power draw by a front-end component. The PCOCC conductor is overkill for a PC, IMO. Pangea’s connectors are molded to the cord if that matters to you, and I don’t have any experience with how well they stay seated, although maybe better than some "audiophile" cords since the connectors wouldn’t be as heavy.
Check back in and let us know what you did and whether you hear a difference.