Interconnect Directionality

jea48,

Extraordinary claim ... "changing cable direction is as clear as the nose on your face". I am not making the claim, but if the difference is that obvious, it should be easily shown.

I used to do a lot of this type of work, comparative audio studies, under contract. Me, not "some guy I know". Me. If I owned the data, and not our customers, I would gladly publish it. Most of it was around speakers, some amplifiers, some "gadgets"... 

I have seen many many challenges to suppliers of cables and similar products to prove their claims in blind tests at an audio show. People are even willing to lose money on these challenges. Suppliers never take them up on it.

A room at Axpona, RMAF, etc. is about $4000-5000, and we would need to equip it with suitable equipment. I don't know about you, but I would gladly put in $1,000 to do this if it was done well. However, don't be surprised when the show organizers don't allow you to have a room, so you would likely need to do it offsite.

I have only see one person request a "legal" document, a certain cable vendor who blustered about his complete willingness to do such a test, he would draw up the legal documents and everything .... and then crickets.

clearthink,

I did NOT mean the moderators .. 

cleeds…."Here we go again with a call for blind testing, an exercise that is of very limited value - if any at all - to the typical audiophile."

Respectfully Cleeds, I have no ideal why what I believe is a small group of persons on A'gon would think that blind testing won't yield fair and impartial results.  Please do not repeat the GK arguments against it that the testers are going to rig the test.

Simply put, if you were blindfolded and tasted Coke and Pepsi, would not the one that you like the best be a fair indicator of your preference?  Now I do understand that if the blind test was not performed in your home with your audio system, what sounded best in a foreign system might not sound the best at your home.

As I remember Upscale Audio did a blind test including the Prima Luna gear that was well received?

roberttcan
I spent some time yesterday trying to find any credible evidence that the EM wave flows back and as it moves from the source to the load at near the speed of light, (in a vacuum). I found nothing. And I mean nothing at all that supported your claim. Not even the slightest mention.

>>>>>Wikipedia to the rescue! How often we see this type of statement by a skeptic - “I could find nothing at all that supported your claim.” That’s gold, Jerry, gold! 🤗 But you’d be sure and tell us if you did, right? Wink, wink!

Great,

As you know "some person" who is an expert, why not get them to sign up to this forum, under their own name (so we can verify the claim you are making and his background), AND then, since they appear to be an expert in the field, they should be able to easily formulate and put numbers around, at least ball-park figures for how transmission line effects and other effects related to conduction would impact the audio signal.

I would be happy if they just did the latter and someone else posted it ... formulate and post some order of magnitude numbers, about the potential impact to the audio signal. It sounds like that would be very easy for them?

You make some pretty substantial claims for your cables here: http://www.teoaudio.com/technical/ so I would assume you can quantify them w.r.t. audio? I do notice a claim of GHz bandwidth, but lots of cables have GHz bandwidths and more (obviously at a given source/load impedance).

Interesting use of the term ionic "plasma", it certainly does not fit the normal definition of plasma. If you had said Fermi gas, I think that would be more supportable by standard definitions. This article / marketing seems to be based around Landau-Fermi liquid theories for conduction so at least a link to Fermi gas would apply.





teo_audio1,153 posts10-24-2019 10:51am

THE ACTUAL PROFESSIONALS .... you know, the ones that make 100GHz cables, that ones that put gigabits through twisted pairs, the ones that developed the HDMI standard, the people who make measurements systems, all the ones where real bits, real SNR, real waveform shape = money, the ones whose customers have sophisticated test and measurement equipment, etc. etc. would never ever claim, except where a directional shield is concerned, or there is an intentional passive element built a cable, that, within the framework of audio, that directionality of an interconnect has any detectable difference in the sound.

" as to that, I know a person who took their physics degree in transmission lines and the like. Basically their masters in the physics of conduction.

they ended up, in part of their resume, running a coast to coast telecommunications system as the head engineer.

And when it comes to audio and the signals involved and what is done in audio, this person quickly came to understand that people connected to and invested in things like the above quote...really don’t know the difference between their backside and a hole in the ground."