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Questions for Steve Eddy on dielectrics

Posted by Kyu (A) on June 24, 2003 at 21:22:30

Steve

Just try to understand more for my cable knowledge as a newbie.

You state in your earlier posts below (in reference to http://www.audioasylum.com/audio/cables/messages/78213.html)that:

“Capacitance, in and of itself, is perfectly linear and does not distort the signal. Realworld dielectrics are not perfectly linear and therefore can distort the signal. Therefore while a thicker insulation can give you lower capacitance all else being equal, its greater involement means greater nonlinearity.”

“For a given current, there will be a given magnetic field and a given electric field and a given total energy. Why would this be dependent on insulation thickness?”

My questions:

Does it mean it is irrelevant to use any thickness of the dielectrics in cables as far as linearity is concerned since they are not perfectly linear (and thus irrelevant to sound)?

Would the signal distortion (if any) be comparatively higher in using a much thicker dielectric than a much thinner dielectric?

Would it be subject to any RFI, EMI especially for thinner dielectric in case no braiding in cable is used?

Thanks!

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