Those bananas must have been extra high in magnesium.
For whatever it's worth, I can distinguish SBR from real treble. I can hear MP3 artifacts Audition's spectral view in its highest resolution mode doesn't show. I can easily hear Voltair in Youtube videos people make with open room mics while doing band scans on newly restored vintage radios. But since my youngest days, I have never once heard any difference between "monster cable," lamp cord, or scrap spools of single-stranded telephone wire when connecting speakers of any caliber to amps of any vintage.
Nice to see another article debunking the audiophile speaker wiring canard. I maintain my position that the stuff was always a product of currencyphiles, rather than audiophiles.