Directional wires/cables


Is there any reason to support the idea that cables, interconnects or any other kind of wiring can be considered directional? It seems that the theory is that carrying current will alter the molecular structure of the wire. I can't find anything that supports this other than in the case of extreme temperature variation. Cryo seems to be a common treatment for wire nowadays. Extreme heat would do something as well, just nothing favorable. No idea if cryo treatment works but who knows. Back to the question, can using the wires in one direction or another actually affect it's performance? Thanks for any thoughts. I do abide by the arrows when I have them. I "mostly" follow directions but I have pondered over this one every time I hook up  a pair.

billpete

 

r27y8u92, everyone here is talking about the same energy. They may not know that, but it is all the same form of energy.  The problem is, some, like you,  just don't understand what they are talking about. Sorry, but I don't know of a nicer way to say that.

In a stereo system, it is energy in the form of an electromagnetic wave that follows a wire from one point to another. It is NOT a flow of electrons. That same energy can flow through a vacuum which pretty much proves it is not carried by, or caused by, or causes a flow of electrons. 

You can find all sorts of sites that say that it is the flow of electrons, but they are wrong. You can either educate yourself and accept the truth or continue to believe something that isn't true.. up to you.. I can't help you any further.

 

I did not say electron flow. Actually electrons does not flow in the audio cases.

I said energy transfer. Transfer is not same word as "flow".

In some cases, the electrons actually, really flow. Einstein's Nobel paper is not of the relativity theory, but electron flow effect in vacuum tube!

More talk about "Electron move/flow"

Wikipedia explains Einstein's Phoelectric Effect consisely like this:

The photoelectric effect is the emission of electrons from a material caused by electromagnetic radiation such as ultraviolet light.

I’ll add my $.02 of observation - about all it’s worth. I won’t profess to understand why or explain how as I’m a finance guy (retired) and realize the limitations of my background in this area.

I auditioned some TOTL speaker cables - in a line whose “house sound” I am well acquainted with. The dealer didn’t have them in stock so he had his distributor ship them to me. I didn’t like them as they weren’t an improvement over the brand’s model I had in system. The dealer was really surprised and we discovered in talking that the distributor sent me a fresh pair that had never been used. Dealer was frustrated and got a set that had been played in which resulted in a different experience. No - not night and day as the general sonic signature was the same, but there was an ease to the sound that was missing before. Cable break in is fairly well documented.

If cable “break in” is a thing, then is it not possible that they break in directionally? Again - not a physicist. But it made me aware of the potential.

It would not surprise me that some cable types and topologies exhibit this effect to more than others. I’ve since moved on, but used Silversmith Fideliums (superior performance/value at their price range) speaker cables for several years. No dialectric, floating ground, or direction indicated. I can imagine those being somewhat or even entirely immune to the effects of directionality. Indeed, I did not experience them breaking in over time though they may very well have. I can only confirm they were good out of the box. But Nordost and AQ are clear in indicating direction and their topology is markedly different. And I did experience break in with Nordost. On my Matthew Bond speaker cables, they did improve with time (could be my imagination) but the effect was less pronounced than with Nordost (pretty sure it wasn’t my imagination).

My local dealer then relayed a story about another audiophile customer of his who is a professor of biomedical engineering (I believe - might have the discipline wrong - but science related) who does work in the medical imaging field. That customer relayed to him the need for cable break in on their sensitive imaging devices. He said the quality of the image is notably better after the cables have settled in for several weeks. The dealer relayed that story to me after my experience - so it was not “expectation or confirmation bias” that I was exhibiting. It was data confirming what I had already heard.

As always YMMV - particularly given the remarkable variations in cable chemistry, topology and technology employed. Interesting discussion.

  

It is amazing how people ignore facts, and go on what they think is right no matter what.

My favorite foolish statement this time around in this was when someone stated that if electrons went through metal, they would all build up at one end of the cable.  Utter lack of understanding how electricity flows through a conductive metal (not a problem), then insisting that this was a fact (problem).

The easist way for your own benefit is simply test for yourself.  Cables are always directionally marked, so reverse them.  If you don't hear a difference, it doesn't matter to you.  The only way that you would fool yourself on this would be if you are using lampchords or some other electrical wire.  They aren't marked in what direction that they are extruded, since that detail wouldn't matter for a AC circuit.

Though in reality, cables are directional.  It is a basic scientific fact (not theory).  The extrusion process creates variation in the way that the metal molicules pack.  As the electrons migrate down the wire, the packing variation affects the movement from one end of the wire to the other.  This property is called inductance.

From Wikipedia: Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it. The electric current produces a magnetic field around the conductor. The magnetic field strength depends on the magnitude of the electric current, and therefore follows any changes in the magnitude of the current. From Faraday's law of induction, any change in magnetic field through a circuit induces an electromotive force (EMF) (voltage) in the conductors, a process known as electromagnetic induction. This induced voltage created by the changing current has the effect of opposing the change in current. This is stated by Lenz's law, and the voltage is called back EMF.

There is more going on than just inductance.  But that is the biggest effect and easist to understand.

By training, I was a physical chemist.  I did extensive training and study of the packing of molecules.

But unless you insist on being stubornly stupid, don't feel bad.  I even had to explain this to electrical engineers,  Unless they worked creating audio or video devices, they were unfamilar with the importance of these effects on audio or video equipment.

I remember having a friend over, and he insisted it didn't matter.  At the time he did not have very good stereo equipment at home.  I reversed the leads on one of my systems, then reversed them back.  He looked at me and stated it does matter.

When he bought better equipment and retested directionality himself, he reproduced the effect.

From science, inductance is real, and inductance affects the pathway of electrons through a conductive material.  The packing of the molicules will change inductance.  Stereo equipment is DC, which is a directional current.  Therefore innductance is different in either direction using the same wire.  It is a fact on packing variance.