Total and complete BS. If you hear a difference it is all in your mind. Music is an AC signal. Electrons go back and forth. Show me a difference in impedance one way or the other. You can't even with the most sensitive instruments.
Back in the 80s MIT and I think they were the first to start making directional interconnect cables, were supposed to be the best and they were really big and fat and had the nicest RCAs on them. So, I bought several pairs and dutifully oriented the arrows in the right direction. A computer nerd/ audiophile buddy of mine laughed. So I got blinded and he started swapping the preamp to amp cables back and forth haphazardly. In a notebook on each page I wrote a B for better and a W for worse. There was no correlation what so ever and I was really stretching to make out a difference anyway, never really sure.
Yes, pulling wire changes the metal lattice structure and electrons could care less. So, as far as I am concerned it is a marketing scam. I would also bet that the manufacturer has no idea which way the wire is going. They just print arrows on the insulation to keep up with the Jones. If you go out and buy the absolute best bulk wire like a Canare product there is never little arrows on it.
The problem for audiophiles is that most of us do not have an extended scientific background and usually do not hang out with those that do. It is not that we are dumb, we just don't speak that language. So, we hear something that seems to make sense, and usually there is a small element of truth in there, and buy it hook line and sinker. Then, 1/2 of us really do think we hear a difference and the myth gets wings. Many times when I really thought I could hear a difference I was just fooling myself. Blinded there was none. The mythologists may laugh at me which is fine. They are the ones who are the suckers.
