@EmielSchut they've done studies that found that "audiophiles" couldn't tell the difference between Audio quest high end wires and custom wires literally made out of coat hangers. They couldn't differentiate them in a/b/X testing. They've done a bunch of studies and both frequency and human hearing can't clinically, statistically differentiate them. If you've read the research at all, then you've definitely encountered the now infamous coat-hanger-wire experiment. You should look into it.
