Directional interconnect cables


I see several big-name interconnect vendors mark directional arrows on the outer jacket of the cables.

How is it that a wire can be directional? It's a simple electrical conductor, how is it possible for it to be directional, to sound "better" when connected in one direction vs. the other? This does not make sense to me, perhaps someone here can explain how this can possibly be so...
lupinthe3rd
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Tvad- According to you. Many others disagree that cables are non-directional. If you can't hear the difference, fine for you, and connect whatever way you choose. I've satisfied myself through reversing speaker cables, and single-ended interconnects, that cables are indeed directional. The difference may be subtle, but it is indeed there. I believe you referred someone to the book entitled 'The Complete Guide to High-End Audio' some time back(If not- forgive me for the mistaken identity). If you have the book: read the section on "Cable and Interconnect Contruction", particularly the "Conductors" portion. You may find the discussion on copper's grain/chevron structure informative.
FYI: (http://www.russandrews.com/article-Truth-or-Myth-Cable-Directionality-russdirectionality.htm)
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Mr T- If that sounded like a "personal affront"- Sorry! I like to see those having their minds open to certain possibilities within this hobby(that don't yet have concrete explanations-and there are a bunch) presented those views, with an amount of substantiation. That the telecommunications industry believes cable directionality exists(though it's not fully understood), and takes steps to insure it's oberved in their installations, lends credence(at least to me). Happy listening!