if a Power Cable made NO difference on highly sensitive equipment, how could it make a difference on a CD transport.
It somehow makes a difference to folks’ ears; never mind the most rabid of them haven’t heard 10kHz since the 1990s.
With respect, I would have to agree with the opinion that the PhD who runs Shunyata is a mendacious buffoon. I wrote a long post once, deconstructing one of his youtube videos hawking his $100 wall outlet, in which he deliberately misused an otherwise perfectly good test instrument in order to draw misleading conclusions from a legit but taken out of context measurement.

