richardbrand: Do you have experience in designing sound equipment? Your comments are unusually insightful.
I wish there was a greater understanding of what is going on with cables. A lot of the comments I agree with from personal experience. Many silver cables are quite harsh and unacceptable. Theugh, I have tried few different ones.
Some comments are book knowedge of science. One comment above talked about valance shell of copper, silver, and gold are the same (true), and there shouldn't be significant difference between them (false). Chemistry is extremely complex, and the stuff you learn in Freshman and Sophmore courses in undergraduate is very simplistic. That is where a lot of confusion comes in.
If you make it to Junior level courses in chemistry, that is where real knowledge starts to be explained. You spend most of your first semester freshman year learning that PV = nRT, the ideal gas law. This is really quite incorrect.
It is a nice, simple equations that gives you a basic concept on how gases act. But when compared to real world test results, the numbers generated by that formula are inaccurate. One of the assumtions of the ideal gas law is that the gas molicules never touch. That is why it is labeled as "ideal".
You then start working on theses very complex equations that make accurate predictions only under very specific conditons.
The point of this long explanation (which unfortunately was the simplist I could think of): Even college level science courses will mislead you on how complex real world interactions are. Using simple vector and scalar equations will never be enough to model something as complex as stereo equipment.
One of the simplifications commonly made is that electrons outside the valence shell (the outermost electrons of an atom that are primarily, but not totally, responsible for chemical reactions. If that were the case, then there would be relatively little difference of the chmistry between lead and calcium. I think everyone knows that isn't the case.
Just thought of a good demo of this. The group 1 or alkalii metals in water:
All of these metals have the same valence shell of 1 electron:
https://www.youtube.com/watch?v=aPipS2OitjI
This really shows the effect of the supposedly unreactive electrons in an atom.
Also, this shows you the danger if a untrained fireman hoses down a burning electric car with water. At least lithium is the least flammable with water.