Can anyone give me some info or a website with info on which type of wire carries sound waves best?
Wire does not carry soundwaves, at least not unless the ends of the wire have tin cans on them, and the wire is pulled taut between them! Wires can carry electrical signals which can be used to reproduce the sounds that caused them. This is how sound comes from such as your stereo system's speakers. Maybe that's what you actually mean? If so, copper wires (insulated, of course) are what you want, and if the distance you run the wires is great, the heavier the wire (gauge) the better. If you are transmitting high power to speakers, the wires have to be capable of handling the electrical current involved.
