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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
sean
6,231 posts
 
I stumbled across a very curious phenomena pertaining to cable dielectric at work the other day. Nobody that i have discussed the matter with can explain what is happening, yet they have seen the very easily measured and duplicated results that i'm obtaining and can't deny them.

I have ideas as to what is causing this curious phenomena, but don't want to speak up about this as of yet. I will say that what i'm seeing tends to make me believe that dielectrics, which aren't supposed to conduct, have a polarity / directionality to them i.e. they conduct better in one direction than in another.

I know that some companies already have cabling on the market that supposedly deals with this subject, but i don't think that they fully understand exactly what is going on here. I just hope that Clark Johnsen doesn't see this. Something about polarity based issues tends to get him in all worked up : ) Sean
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dazzdax OP
599 posts
 
Hi Sean, is this phenomenon you've described the reason for some manufacturers to "energize" their cables with 24V (or higher)? Audio is full of unexplained phenomena.

Chris
tplavas
123 posts
 
Sean,

Are you talking about an extruded dielectric that has that property?
Post removed 
dazzdax OP
599 posts
 
Although this is a controversial and a bit off topic I would add another statement: twisting wires within an audio cable (interconnect or speaker cable), although fine for rejecting RFI en EMI, can make the sound lifeless and unengaging.

Chris
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