cable dielectric cause of artificial sound


Hi folks, I would like to know what your opinion is about the following issue. About 90% of high-end cable manufacturers use PTFE as dielectric. Many of their cables sound much alike and they have a few of these characteristics in common: clean, relaxed and laid back sound but at the same time very dynamic (though a bit artificially), very quiet ("black background"), very good (also artificially) left/right separation. But I think albeit these traits, they tend to sound "technicolored", "sterile" and unengaging (lacking PRaT also). Some cable manufacturers are using bleached cotton as dielectric. These cables sound different: they have more natural dynamics, a mellower sound, more intimate soundstage, more tonal colors and so on. Are these differences mainly due to the dielectric material used? Why is for so many manufacturers PTFE still the ultimate dielectric for the use in audio cables?

Chris
dazzdax
Artizen65

Silver has a slightly higher frequency response than copper in the 20hz to 20khz range. Hence why some people perceive silver as being brighter than copper.

This doesn't make sense. Silver being slightly more conductive than copper will mean that skin effect will be slightly worse in a silver conductor than a copper conductor, all else being equal, and therefore have a slightly reduced high frequency response compared to copper.

So lets assume that skin effect exists in the upper frequency range of the audible band 20hz to 20khz. Other than preventing corrosion or oxidation of the conductor the dialectric should be selected for minimum interaction with the electrons in the conductor. It is this reason that air is the best dialectric.

It's not the electrons that the dielectric interacts with, at least not directly. It's the electric field that the dielectric interacts with.

se
The dielectric becomes more conductive / lossy over a period of time. As such, the electrons DO interact with the dielectric, both in terms of conductivity and magnetic field. The measurements that i mentioned above pertain directly to this subject. Sean
>
If the issue is that the dialectric potentially changes the sound, and oxidation of copper potentially changes the sound, wouldn't pure copper wire covered in something to prevent shorting, and oxidation, be ideal? Where do the Speltz anti-cables fit into this discussion?
Sean

The dielectric becomes more conductive / lossy over a period of time. As such, the electrons DO interact with the dielectric, both in terms of conductivity and magnetic field. The measurements that i mentioned above pertain directly to this subject.

Well, since you didn't provide any information whatsoever about your measurements, there's no way to evaluate your claim.

se
Steve,

It seems our point of view is different, you're looking at it from the technical side, mine is from an audiophile talking about audiophile cable.
Some of you sound like many of the electrical types I've talked to where everything has to be proven with numbers and measurements. These people will never believe two audio cable can sound different because it can't be measured. Audio cable is NOT and never an exact science, I repeat NOT. While skin affect does occur at frequencies above 20khz, differences can still be heard.
High End cable designers don't come up with a design so that their cable will only sound as they intend after oxidation has occured, they do their best to limit oxidation with the use of Teflon & PE, this is why we don't see many exposed copper in high end cable design.
Many cable brand has it's signature sound, for example the consistent smoothness of Cardas cables, if they don't limit oxidation after a short period of time highs will be affected and the sound is not as George Cardas intended to be.
My point of all this rambling is, oxidation has to be taken seriously in a high end cable because the signature sound that the designer intended will be no longer be after corrosion occurs. I don't think audiophiles want to spend hundreds to thousands of dollars on a corroded cable anyway.

Dazzdax,
Sorry we hijacked your thread with all this rambling.
It's what makes discussion fun!

Scar