Cable directionality


I'm sure this has been discussed before but I missed it, so what is all this stuff with the direction of voltage flow with cables? Every cable you see any more has a little arrow on it. Since the signal is AC and travels one direction as much as it travels the other, what difference could this possibly make. I have talked to numerous co-workers (all electrical engineers) and they ALL say this is the biggest bunch of bunk they have ever seen. Since I am the only "Audiophile", I try to keep an open mind(I'm also the odd man out being mechanical.) Skin effect, resistance, capacitance, etc. are true issues. You pass power through a wire and it creates a magnetic field. You do deal with impedence and synergy with the driving source. How about a few technical answers from the audiophile community.
bigtee
seandtaylor99 - I have also tried it and found no difference in my particular system. I believe that the results are very system-dependent. In systems with poor grounding, it could make a big difference in theory.

BTW - I am also an EE with 26 years experience, and a cable company to boot!
Audioengr, So, lets take a 60HZ signal and run it down the "Signal carrying" wire. Since this would be the same as a 60hz sine wave, are you trying to say that the positive half cycle goes down one wire and the negative half cycle comes back on the ground? We are talking about AC here. Hate to disagree, but I don't think so. Also, we cannot have current without voltage since volts push amps. In less than 120 volt applications, we have one line of potential(as in house wiring)and according to your described theory the ground(neutral) would also have be a hot wire since each half cycle would need to be equal with respect to volts and amps on each conductor. It must return on another wire according to this theory and that would be the neutral. In 35 years of being around electricity in various forms, I've never had the need to measure the ground except when we had an electrical "Short" popping people. However, I am a ME and design air conditioning systems. I will present your theory to my EE friends. If they agree, I will humbly apologize to you in this forum and will consider myself enlightened!
Seandtaylor99, no accusations were made or intended (and I don't think that clarity and open-mindedness are necessarily mutually exclusive qualities). I'm just observing an analogy between the debates on sonics that pervade these forums, and the apparent capacity for trained engineers to take each other to task over their explanations. I will readily admit to having a certain degree of automatic respect for all the engineers who contribute on A'gon, and do not engage in "bashing" them as a group (if that indeed exists here at all). Anybody can suffer from an inability to hear, not just engineers! :-)

P.S. - As for "what we want" from you guys, it appears in actuality to be beautiful sound at any price, but personally, I'd settle for realistic sound at a price that's likewise...heh, heh...
Cable directionality is one of those things that is very easy to hear and very difficult to measure to the Hard Line Objectivists (HLO) satisfaction as the differences are buried in the noise and couldn't matter anyway....Ben Duncan heard the differences in wire directionality and developed a test for this that has been severly criticized by HLOs who say it was measurement error or it was far down as not to make any difference anyway....I use my ears and my cables all are set up for a proper stage and venue information which is in the diode effects in wire and likely 120dB down in the mix....It matters to me and is the reason I can pull more information out of cables that aren't much different than any on the market....Nothing mystical here, just care in putting together wires for the best presentation....It is a pain to listen to each spool of wire and document which end goes to source and which to load as respects each leg, but that is necessary for a proper presentation without hot spots in the stage, normally at the speakers, and proper image height....

Bob Crump
TG Audio/CTC Builders/DDR Mfg