06-03-13: Danoroo
You can hear a difference in power cords for the same reason that a sugar pill can cure a headache if the person ingesting it believes it's medicinal.
Danoroo, I find that to be true for many, and it works both ways. If you do NOT want to hear a difference, chances are you won't hear a difference. I have found many surprises when auditioning cables and power cords. I was a power cord skeptic a dozen years ago, but unfortunately, I did eventually hear differences. Not all differences were for the better, some were for the worse.
I still get many surprises, some times I will expect to hear more from a cable or power cord from reading reviews and others experiences, only to be disappointed. However, sometimes I also try something expecting little or negative results, and I'm pleasantly surprised. There are other times that I hear pretty much what I expected to hear.
So while many will hear what they expect to hear, differences or no differences, there are others who find this journey to be consistently interesting, with surprises around many corners.