I'm an EE (actually ECE) and I am not a proponent of expensive cables, but I try to remain open minded. I will not say there isn't a difference because I haven't had the opportunity to audition lots of different cables. Some comparisons I have made are between inexpensive lamp chord type speaker cable, more expensive equivalent (in size) Monster cable and a 12' pair of audiophile cables I received from a dealer/friend. I couldn't hear a difference. I do believe a larger gauge wire with good shielding, etc. can perform better, so instead of buying some expensive cables, I built my own using and braiding CAT5 cable. I don't recommend this because it is a huge hassle to make, but they do seem to sound better than the audiophile cables. Maybe the effects are psychosomatic because of all the effort I put into it.
This is what I built: http://forums.audioholics.com/forums...0&postcount=10
Actually, more specific, it was this one, but I used all blue:
I will say that the science underlying cables is pretty well known and has been for quite some time, so earlier comments about not being able to measure things some people claim to hear because the physics are unknown, etc., don't make a lot of sense to me. I'll ask some of my friends who have PhDs in physics and see what they have to say.
I would think the best way to determine if there were differences between cables would be to use the known measurement techniques to find differences in performance characteristics. If that isn't acceptable to people who believe our science isn't advanced enough to measure the real differences, then conduct a properly designed double blind test.
Some of you might have heard about this $1 million challenge from James Randi. He is offering $1 million dollars to anyone who can prove that a pair of $7,250 Pear Anjou speaker cables is any better than the equivalent Monster Cables.
It looks like someone has taken him up on his offer. It will be fun to see how this works out.