In an analogue signal, it's not the travel of electrons that brings the sound to the speakers. It's the electromagnetic wave. The electrons themselves barely travel along the cable at all for DC and if it were AC, they just vibrate.
The electromagnetic wave however, travels at the speed of light in a vacuum and although it can be slowed a (relatively) good bit in our world of solid materials, it will still arrive on the other side of your living room faster than you can measure without a nearby quasar to use as calibration. I think only Randy keeps one of those in his basement.
Last edited by Murph; 07/26/10 02:52 PM. Reason: mistyped a few words. I blame spellcheck.
