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
georgehifi
but nobody has ever measured directional wire or fuses. I’d say that’s because it doesn’t exist. Pathological denial of the existence of a phenomenon beyond measurement? I guess if rational thought is pathological, I’m guilty.
+1, it’s all voodoo, led by you know who.

https://s-media-cache-ak0.pinimg.com/originals/81/6b/b2/816bb2ce803a876c3b46601f55730cac.jpg

>>>>More tripe served up fresh by the leader of the pathological peanut gallery. 🐒 🐒 🐒 🐒

Why are are people on remote islands in the Pacific so superstitious? Who knows?
Some of this stuff is so simple and so easy to get to the truth.

Not being an engineer, or designer, or even producer of bulk wire, but just an end user and former electrical & electronics worker and technician and audio hobbyist for some decades, I’ll bite.

The ONLY directional cabling I know of are those with the little T former IMP matching boxes, and power cords.

Though, Power Cords especially. Why?

Because you can not reverse the ends. They don’t fit. Even if you push really hard!!

As for all other cables, SE/XLR IC, speaker wires, USB, Ethernet, HP cables, barring termination issues, and UNLESS there is an arrow printed on the exterior of the cable jackets, they MUST be bi-directional cables.

(Hint – if no cop is seen, use cables in either direction)

If an arrow is adorning the exterior of a cable, I’ll simply abide by the implied wishes of the maker… until it gets removed and later re inserted, then its anybody’s guess which way one or both wires wind up being connected….. and BTW…. I’ve yet to hear either alterations or degredations to the audio.

Nearly ALL connecting and speaker wires are bi directional for one simple reason. Cost.

Does anyone know exactly how much it costs for cable makers to have itty bitty microscopic signs made up for the electrons so they’ll know which way traffic should flow?

Its immense! And, there must be many of them posted all along the lengths of the conductors!

You will need “This way” signs on one side of each conductor, and “Wrong way’ signs on the other side of every conductor. Although there is an argument for having only one of each at opposite ends of each conductor.

It could run a cable manufacturer into bankruptcy! Although it opens the door for a brand new industry and more jobs.

Naturally people would simply transition from making tiny scarecrows and Elvis manikins for Ant farms as the onset of miniature crows infesting current ant Farm crops are at all time lows.

Of course, even proper signage won’t always keep traffic flowing properly. There will always be those electrons that are texting and driving or watching Youtube on their cell phones. Usually, it’s the more immature electrons who transgress.

Don’t believe me…. As is always the case here… try reversing one or both supposed directional cables and listen for yourself over the course of a few days or a week!!!

Why not? They are your wires, right?


blindjim wrote,

"Some of this stuff is so simple and so easy to get to the truth."

>>>>>I always get a little bit suspicious when a long post starts out with the word truth in the first sentence and, "I’ve got decades of experience," in the next breath. This seems to be simply a case where someone barged into the thread without reading the preliminary discussions on this thread. Sometimes naysayers barge in where angels fear to tread.


@blindjim
 Don’t believe me…. As is always the case here… try reversing one or both supposed directional cables and listen for yourself over the course of a few days or a week!!!

Why not? They are your wires, right?


I have, and I do hear a difference.

I also hear the difference between early 1960s Siemens CCa all gray shield tubes and early 1960s Amperex 6922 PQ white label USA made tubes in my preamp. Can the differences one hears be measured with test equipment? 

I can hear differences between one manufacture's ICs and Speakers cables and that of another manufacture's. I can't ever remember any reviewer of cables show actual testing with test equipment results. Can you?

I can hear the difference in SQ quality from my 2 channel tube preamp and tube power amp from when they are first powered up playing music to after they have been powered up for about 45 minutes playing music. I can hear the SQ continue to improve after they have been playing music after an hour or two. I have read similar posts on audio forums and from audio magazine reviewers that state the same thing. I can't recall any actual bench tests using test equipment verifying the improvements in SQ though. Have you?
@blindjim,

Do you believe ICs and speaker cables SQ improve with break-in, burn-in, settle-in, or what ever you call it? If yes, where is the proof? Verified lab testing.

According to this guy it's a myth. The cable will sound the same new out of the box as it will with a 100 hours of signal passing through it.
by Gene DellaSala — August 29, 2004

Cable Vendor Claim
"'Breaking in' a cable has everything to do with the insulation - not the wire itself. The insulation (or dielectric) will absorb energy from the conductor when a current is flowing (i.e. when music is playing). This energy-absorption causes the dielectric's molecules to re-arrange themselves from a random order into a uniform order. When the molecules have been rearranged, the dielectric will absorb less energy & consequently cause less distortion." - Audioquest

Audioholics Response

Thus their conclusion is the dielectric , not the wire causes distortion! Claims regarding insulation molecules "aligning" with a signal, skin effect, strand jumping, etc, are anecdotal at best. Let's not forget that an audio signal is AC, and effectively random from a physical perspective. Nothing can align to a random signal by being anything other than random - exactly the state they claim is "cured" by injecting a signal.

"Break In" is not a proven audible or measurable phenomenon. The perception of changes in sound quality with time is likely attributable to the classical placebo effect, i.e., a listener anticipating a possible audible difference is predisposed to hear one whether or not it exists. Note that Audioquest isn't the only exotic cable vendor that claims cables "Break In". This is actually quite a popular myth touted by many other exotic cable vendors and cable forum cult hobbyists alike.

 
http://www.audioholics.com/audio-video-cables/audio-cable-break-in-science-or-psychological

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