Done no more.
No, not that they don’t work… but my musical enjoyment does not change with a 1% increase in fidelity. It just doesn’t get more better.
The biggest issues of caring besides getting basic equipment and matching correct, is acoustics and speaker placement… and a “base level” quality of cables. Done… no more.
I owned a pair of Magnepan 20s… I think one of finest, musical speakers I have ever heard and any price… and a pair of 2.5R years before… and some Martin Logans in between… planars are a nightmare to get right. After shoving these things around forever, tweaking some wall treatments … like books and such… placing a cable on a cryogenic frozen milk carton is …well pfft! when it comes to increasing fidelity.
I had a local store who had a big inventory of used stuff… gave me about 9 or 10 speaker cables to take home… prices all over the map… once I hit a certain level… oh a few hundred buck for a pair… there were differences, but none of them made my experience “better”.
I put my efforts in the the things that make the biggest difference… like a tube amp… or a PS Audio Junior… and then I stop, crack a Pilsner Urquell… and go to the moon. A megabuck cable ain’t getting me there sooner, faster, or better.
Bruce in Philly