Lupinthe3rd - It does not make sense to you because it does not make sense. Believing that a wire terminated at the ends in a metal conductive pin and socket is directional is evidence of a complete lack of understanding of even basic electrical theory and a willingness to buy into any idea that someone proposes that is backed by a misapplication of scientific principles. In order to make a cable directional you would have to add a component that had an inherent directional attribute - like a diode or a polarity sensitive capacitor. Doing that would affect sound if done correctly, but it is not an effect you would want (of course adding the polarity sensitive cap would, with sufficient voltage, give a very time limited change as the cap would fail). You can create your own directional cable with a simple nondirectional cable and a ball point pen (to add the arrow).