I run a vintage MacIntosh - powered system that, quite frankly, is not "audiophile" enough that I would ever consider cables like these... however, I am open-minded enough to entertain the POSSIBILITY that, on sensitive enough (read that as "very high end / true audiophile-quality" system) equipment you MIGHT audibly detect ultra subtle differences between audio cables, power cables, etc.
I can say that from my more modest perch, I did upgrade my interconnects from the standard 'freebie' red / black plug RCA cables that usually come with the equipment (at least in the 'regular guy' audio world, LOL) to some modestly priced interconnects... and I definitely noticed a drop in background noise overall; and especially an improvement in both noise reduction and subsonic interference when I swapped out the turntable cabling.
Does that equate to "my $25K per cable" interconnects are a SONICALLY OBVIOUS improvement" over say, a $5K cable? Or even a $500 cable?
That question I cannot answer... but I've got my bag of freshly buttered hot popcorn at the ready... so bring on the combatants! 