I never cared much science in high school but I've always found it interesting when it comes to sound. \n\nThe problem: the speakers cables were near my light dimmer and caused the light dimmer not to work. Could I get special light dimmers on a remote designed for home AV? sure, but I did not want to drop the $ on that.\n\nWhat I learned: everything that carries an electrical signal puts out an electromagnetic field.\nFrom Wiki, "An electromagnetic field is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the vicinity of the field."\n\nThe solution: The fix to this problem was Ferrite Iron. (see pics below). So these things snap around your cables and help to tone down electromagnetic fields. After putting these on some of the speakers cables near the light\/ fan dimmer it worked perfectly. \n\nSee below:\nhttps:\/\/en.wikipedia.org\/wiki\/Ferrite_bead\n\n\nJust thought I'd share this with yall, I found it interesting.