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Directionality Explained

I have read it argued against by those who think they know
Here is proof
Paul Speltz Founder of ANTICABLES shares his thoughts about wire directionality. Dear Fellow Audiophiles, As an electronic engineer, I struggled years ago with the idea of wire being directional because it did not fit into any of the electrical models I had learned. It simply did not make sense to me that an alternating music signal should favor a direction in a conductor. One of the great things about our audio hobby is that we are able to hear things well before we can explain them; and just because we can’t explain something, doesn't mean that it is not real. 

https://www.monoandstereo.com/2020/05/wire-directionality.html#more
tweak1
andy2
1,545 posts
 
If any part of an AC current is directional, then the AC signal itself must be directional - by definition. It’s like 2+2 = 4.

When a cable is connected from the amp to the speaker, energy flows from the amp to the speaker. That is at the amp end, the cable will experience more energy vs. the end closer to the speaker, hence by definition, an AC current is "asymmetric" due to the energy distribution.
djones51
4,947 posts
 
 If I install a wire between an amp and speaker the current flows from the amp to the speaker if I turn the wire around it flows the same way. If an AC current were directional the way wires are being touted as directional then the current would flow backwards from speaker to amp when the direction of the wire was changed. AC currents are nothing but flows of charge the charge flows from the difference in voltage potential no matter which way the wire is.
andy2
1,545 posts
 
If you’re right, then a DC current is also symmetric based on your logic.
Post removed 
andy2
1,545 posts
 
Just to add something a bit more specific.

Here is: the current is symmetric, no argue there. But the voltage is not.

For example, as the current flows from the amp to the speaker, due to loses from heat, the energy will be less and less as the current flows toward the load, in this case it's the speakers.  That is the amp will send some energy out, but by the time the energy arrives at the load will be slightly less due to loses such as heat.  If the energy is the same, it would violate the conservation of energy law.

Energy is equal to = V * I.  And since I is symmetric, then it's must be the voltage that is NOT.  That is voltage at the amp end will always be slightly larger than the voltage at the load (speakers).  
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