I have pondered what would be the best transmission line for speakers and concluded that two conductors separated by some distance would be optimal. I assumed skin effect below 20kHz would be negligible but others have indicated otherwise. The results of your test would be interesting. Justin On 6 Apr 2018 06:58, "Bob Blick" wrote: > I was thinking about how wires in DC spot welders jump when you perform a > weld, and how it's most likely electromagnetic forces. Then it got me > thinking about how it affects power transmission with long spans between > the towers. Those wires are far enough apart and other losses are dominan= t, > so I'm sure it's insignificant. > > A very long time ago I needed to wire some loudspeakers and used two > strands of some salvaged single conductor insulated solid wire, fairly > heavy gauge. When I later replaced it with regular speaker cable of simil= ar > gauge, the system sounded better. I wonder now if the wires vibrated enou= gh > because of the electromagnetic effect that it caused resonances. My ears > were pretty good back then. > > Perhaps I should do some testing and see if I can measure the effect. > > Bob > > -- > http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist > --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .