Directionality of wire


I am a fan of Chris Sommovigo's Black Cat and Airwave interconnects. I hope he does not mind me quoting him or naming him on this subject, but Chris does not mark directionality of his IC's. I recently wrote him on the subject and he responded that absent shunting off to ground/dialectric designs, the idea of wire directionality is a complete myth. Same with resistors and fuses. My hunch is that 95% of IC "manufacturers", particularly the one man operations of under $500 IC's mark directionality because they think it lends the appearance of technical sophistication and legitimacy. But even among the "big boys", the myth gets thrown around like so much accepted common knowledge. Thoughts? Someone care to educate me on how a simple IC or PC or speaker cable or fuse without a special shunting scheme can possibly have directionality? It was this comment by Stephen Mejias (then of Audioquest and in the context of Herb Reichert's review of the AQ Niagra 1000) that prompts my question;

Thank you for the excellent question. AudioQuest provided an NRG-10 AC cable for the evaluation. Like all AudioQuest cables, our AC cables use solid conductors that are carefully controlled for low-noise directionality. We see this as a benefit for all applications -- one that becomes especially important when discussing our Niagara units. Because our AC cables use conductors that have been properly controlled for low-noise directionality, they complement the Niagara System’s patented Ground-Noise Dissipation Technology. Other AC cables would work, but may or may not allow the Niagara to reach its full potential. If you'd like more information on our use of directionality to minimize the harmful effects of high-frequency noise, please visit http://www.audioquest.com/directionality-its-all-about-noise/ or the Niagara 1000's owner's manual (available on our website).

Thanks again.

Stephen Mejias
AudioQuest


Read more at https://www.stereophile.com/content/gramophone-dreams-15-audioquest-niagara-1000-hifiman-he1000-v2-p...


fsonicsmith
@geoffkait 
And since ALL fuses are directional we can probably conclude it’s the wire itself, not (rpt not) the dielectric material, at least not (rpt not) to any significant degree. This whole wire directionality thing is actually an excellent example of Occam’s razor: Suppose there exist two explanations for an occurrence. In the case of two possibile explanations the simpler one is usually the correct or better one. Another way of saying it is that the more assumptions you have to make, the more unlikely an explanation is.
I think you may be misusing the razor.
terry9497 posts08-18-2017 11:31am@jea48

Yes also to IC's.

Further to the above, I forgot that about 20 years ago, when I saw IC costs going stratospheric, I decided to do an experiment.

I built a cabinet for ARC SP10 pre-amp and Nakamichi CR7, which was a Faraday cage. I then noted that, at line levels, capacitance was the enemy, not inductance, so I found some very pure 4 nines silver 24 AWG and had it gold plated.

I drilled holes in the bulkhead between the ARC and the Nak which were 2" apart and threaded bare wires through them, and then protected the wires with 0.375 teflon tubing, which touched the wires scarcely at all. Thus, compared to conventional co-ax of whatever manufacture, dielectric absorption was near zero, as was capacitance. Cables were 26 inches and terminated with ETI RCA's.

I was then in a position to conduct a single-blind experiment of theoretically optimal cables compared to Canare Starquad. An expert test subject (my long suffering wife) was unable to detect the difference reliably. Of less interest, because I was not a blind subject, I was also unable to hear the difference.

This is NOT definitive because the subject was not required to make many, many repeated observations for statistical analysis. But the point was clear: there ARE things that yield readily detectable differences, like turntables, tonearms, cartridges, SUT's, tubes, pre-amp topology, power supplies, capacitors, resistors, amplifier topology, and speakers.

So the latter is where I spend my money.

Terry9,

Thanks for the reponse.

Next question. When you built the ICs by chance did you run the two wires as they come off the spoil in the same same direction? Or did you reverse one in the oppit direction?

I assume you used solid core wire. Is that correct? By chance did you ever try reversing the ICs and check to see if the ICs were directional?

Please read this Audio Asylum thread. Post back your thoughts.
https://www.audioasylum.com/cgi/t.mpl?f=cables&m=12332


Al, (almarg),

Thank you for responding to my earlier post directed to you.

If by chance you are still following this thread I have another question for you.
I ran across this thread, in the quest of finding more information on dielectrics and how they affect the signal passing through them.
https://forum.audiogon.com/discussions/cable-dielectric-cause-of-artificial-sound

I read this post of sean’s

sean
6,229                                                                      posts10-09-2006 11:49am


I stumbled across a very curious phenomena pertaining to cable dielectric at work the other day. Nobody that i have discussed the matter with can explain what is happening, yet they have seen the very easily measured and duplicated results that i’m obtaining and can’t deny them.

I have ideas as to what is causing this curious phenomena, but don’t want to speak up about this as of yet. I will say that what i’m seeing tends to make me believe that dielectrics, which aren’t supposed to conduct, have a polarity / directionality to them i.e. they conduct better in one direction than in another.

I know that some companies already have cabling on the market that supposedly deals with this subject, but i don’t think that they fully understand exactly what is going on here. I just hope that Clark Johnsen doesn’t see this. Something about polarity based issues tends to get him in all worked up : ) Sean

I will say that what i’m seeing tends to make me believe that dielectrics, which aren’t supposed to conduct, have a polarity / directionality to them i.e. they conduct better in one direction than in another.
Sean never said how he conducted the test. Any thoughts on his comments?

I can certainly see why someone might reverse the cable and think the difference in sound was due to the dielectric material, not the wire itself. Even if the tester believed wire was directional how could he separate the effects of the wire directionality from the effects of the dielectric dirctionality, assuming there was any? We have seen a similar situation with the fuse holder being given full credit for fuse directionality. We see all manner of theories that avoid the elephant in the room.