I've posted this before, so I'll be brief. I replaced my 10 ga. Monster Cable that was oxidized with some inexpensive twisted pair speaker wire, nothing fancy, and it is so much brighter that my wife said "what's wrong with the system". It has mellowed out and sounds pretty good now. So the answer is, you may not be able to measure it yet, but your ears, or some ears, can HEAR a difference.
Audible differences between speaker cables?
I'm a newbie to speaker cable issues. My analytical side says that there shouldn't be much difference from one type or brand of cable to another (given that they are low enough resistance to provide a high damping factor). Nevertheless, there are some strong opinions to the contrary. What audible differences are there from one type of cable to another?