The Science of Cables

@taras22 

"The only natural metal liquid at room temperature is mercury"

EGaInSn - Thank-you for confirming.

Other than being liquid, there are few properties that one would consider ideal for audio electronic connection. The material's primary benefit over solid connectors is that it is 'stretchy.' Given that audio connections remain fixed, using a material which has lower conductivity and non-constant or inconsistent charge density seems pointless.

See http://www-personal.umich.edu/~kaviany/researchtopics/SYu_JCP_2014.pdf and https://www.tandfonline.com/doi/pdf/10.1080/23746149.2018.1446359

It may have sonic properties that differ from Cu and Ag, but that is the same claim made by every other cable maker for their product!

One way of measuring often applied is to take note of the output frequency and amplitude as it comes out of the amplifier using an oscilloscope and compare it to same at the input of the speaker. Interestingly, it seems that although measurable, it matters little to listener preference. 

There are numerous blind tests where listeners can't tell the difference between a big box store cable like Monster and coat hangers [ https://gizmodo.com/audiophile-deathmatch-monster-cables-vs-a-coat-hanger-363154 ] 

But what if you use better cables and invite self professed audiophiles to listen? Here's an interesting article from Stereophile magazine where such a test was done. What I find interesting is that the second highest rated cable in the test had the worst fidelity, and the worst rated cable was right there in the middle when frequency and amplitude were measured.
[  https://www.stereophile.com/content/minnesota-audio-society-conducts-cable-comparison-tests-0 ]

What I find interesting is that the second highest rated cable in the test had the worst fidelity, and the worst rated cable was right there in the middle when frequency and amplitude were measured.

As i noted above, we have to distinguish between accuracy and musicality. They are different and valid. The problem is one is harder to measure.

Most of our queues come from music theory. Concepts of consonance and dissonance, chords construction all follow the "some distortions" (e.g.: harmonically related additions) are welcome. Chords are examples, as is the resonance of a sounding board or violin case.  Heck, tubes probably get their great rep from consonant harmonic distortions and that is known to be musical from folks who make music. No issue there, as logn as we understand what is happening.

in cables we also have the possibility that what they are is long, expensive, fixed tone controls. We KNOW that rooms are far from flat. We also know that many electro-mechanical components are far from flat (cartridges, speakers...). Finally we know that there are HF distortions from the digital recording mastering process which, when it is done badly, are objectionable. all these problems can be made better or worse through simple frequency manipulation. So a cable that distorts - rolls of the HF - may sound very good to many in a particular system. Sadly it may sound dead in another.

Decades (?) ago Mark Levinson launched a $20k equalizer on the world from Cello and got great reviews from Stereophile among others. I’m convinced we miss a trick by not having a loudness contour - in fact i think its one reason why many audiophiles listen more loudly than they might otherwise. Of course we need to avoid a cure that’s worse than the disease.

So i’m not surprised.

I recently landed on the "listening" side of the issue by buying Omega Mikro power cords (a radically unconventional design using micro thin "planar" wires and mostly air dielectric).  The company uses listening to design their wires, which take no back seat whatsoever compared to my high level AQ wires, totally different design and approach (measuring).  Conclusion:  both listening and measuring, used almost exclusively, can be good, but  to me, listening is more valid.
Jim Heckman

Luv the Omega Micros! I had a chance to listen to them a lot when I was exhibiting with Mapleshade at Vegas in 97.