Wid, your wish is my command. I didn't think that this thread was going to need much more in the way of replies, since Curtis made a reasonable suggestion to explain why there might have been an audible difference when the wires were changed. There's no way that 16ga and 12ga wires, each in good condition, would audibly change the sound if these were typical length runs of 10' or so to main speakers. Irrelevant analogies to water hoses aren't helpful and neither is the suggestion to take one strand of wire(typically of 36ga or so)and see if it makes a difference. This area holds no technological mysteries and it's apparently time to again cite the the explanation
here of a well-respected veteran audio professional.
