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
kosst_amojan
139 posts                                                                 08-22-2017 12:48pm


I’m pretty sure the DSM has a diagnostic name for those who hear things that have no basis in reality. It’s called schizophrenia.

~ ~ ~ ~ ~ ~
schiz·o·phre·ni·aˌskitsəˈfrēnēə,ˌskitsəˈfrenēə/nounnoun: schizophrenia
  1. a long-term mental disorder of a type involving a breakdown in the relation between thought, emotion, and behavior, leading to faulty perception, inappropriate actions and feelings, withdrawal from reality and personal relationships into fantasy and delusion, and a sense of mental fragmentation.
    • (in general use) a mentality or approach characterized by inconsistent or contradictory elements.
~ ~ ~ ~ ~ ~
But say there was some magic wire that acted like a diode in some way.
Who said it acted like a diode?

Why would that be a good thing? The concept sounds stupid on it’s face on principle alone.
Only an IDIOT would think someone who designs and builds ICs and speaker cables would deliberately somehow make a cable directional and use the reasoning behind it as some kind of sales gimmick. A STUPID IDIOT!
.
Who said it acted like a diode?
It’s the only technical non voodoo’ist explanation, if they (fuses or cables) are seen/heard to be directional.

But I'm sure Geoff will pull another rabbit out of his hat.
https://static.guim.co.uk/sys-images/Books/Pix/pictures/2009/12/16/1260957295386/Magician-pulling-a-rabbit-001.jpg  

Cheers George
kosst_amojan
I’m pretty sure the DSM has a diagnostic name for those who hear things that have no basis in reality. It’s called schizophrenia.

>>>Actually, that’s incorrect. Pathological skeptics are unable or unwilling to hear things that are really there. The name of that particular mental disorder is bipolar disorder. 👥 Or maybe they’re just superstitious, like George. Hey, George it’s OK to come out now. The war has been over for many decades. George, George, George of the Jungle, strong as he can be, Ahhh, Watch out for that tree!

georgehifi
2,727 posts                                                              08-23-2017 2:40am

jea48:
Who said it acted like a diode?

georgehifi resonse:
It’s the only technical non voodoo’ist explanation, if they (fuses or cables) are seen/heard to be directional.

First this thread is about cables, not fuses. For the discussion of this thread leave fuses out of it. PLEASE!

No doubt the diode theory makes it easier for you to disprove the chance cable directionality can exist.

Possible other theories that may be at play with cable directionality might be distortion in the cable caused by the conductor and or the type of dielectric used to cover the conductor. In one direction the distortion may be less than the other.

Apparently to date no one has been able to prove or disprove beyond a reasonable doubt using test equipment, that exists today, if cables are directional or not directional. I might also add to date, not that I am aware of, any such credible tests that prove or disprove ICs and speaker cables break-in burn-in with use. Do you believe they do? Now I am not talking about cheapo $2 or $4 dollar ICs. I am referring to good quality designed and built ICs whether DIY or name brand.

Here is a long and winding thread I found on AA. Note the posts of well known EEs and a couple of audio equipment designers. It appears bench testing of IC cables is not all that easy to do. You can’t just use a multi meter to test an IC or speaker cable. Other than maybe checking for continuity or DC resistance.

Posted message.

No cable warm up: proven by a Korean hi-end critique
    Posted by koko (A) on February 10, 2002 at 15:21:02

Mr. Hyun, one of the most popular and highly respected hi-end audio critique at HIFINET, claimed that it is scientifically proven that there is not a thing like cable warm up or cable break in.
According to him, his claim is so firmly established by science that it can never be altered by future science.

He says that he himself measured RadioShack audio cables with a multi-meter. He used continuous sine wave tones on a test CD. He could not measure voltage difference between a new one, a several-day-old one, and a several-week-old one. He says that such test is SUFFICIENT to be a firm SCIENTIFIC PROOF of his claim because cable is electrically linear.


About HIFINET:
www.hifinet.co.kr
It is a true hi-end webzine. Korean hi-end audio importers provide its reviewers with Mark Levinson 380SL, B&W Nautilus 801, Sonus Faber Guarneri Homage, etc - true high-end stuff -.

About Mr. Hyun:
He has posted a lot of articles on technical issues as well as listening test reports. Readers can feel that he has high confidence on what he is talking about. He very often uses words such as ’science’, ’technology’, ’textbook’, ’NIST’, ’proof’, ’founded’, ’established’, etc.


https://www.audioasylum.com/audio/cables/messages/4/42469.html

.