I once once heard a similar claim, same store different guy, that the tighter weave of the outside wire in Monster Cable allowed the electrons to flow faster there. Thus making the high notes clearer. Sigh......
Tighter weaves mean faster electron travel? Ha!
Everyone knows what makes the most difference is elevating your cables above the floor so the electromagnetic wave doesn't suffer from negative boundary effects against the floor -- especially carpeted floors. The thicker your cable and the louder you play your music, the higher you need to get them since the EM field will also be larger. For example, if you have 14ga wire and tend to listen at 90dB, you should have your wire at 6.43 inches above the floor.
For the curious, you can derive the correct height from Gauss's law:
where
p is the sound loudness, and
e0 is the wire's gauge. And, as we all know, decibels divided by wire gauge gives us inches.
And don't pay too much for the required cable elevators, either. You know all those wooden chopsticks you have in your junk drawer from eating Chinese takeout with a fork? Well now you'll be glad you didn't throw them out. Just make tripods with chopsticks held together by a rubber band. You can adjust the height by where you place the band.
