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Also, a lower net dielectric constant.

Posted by Al Sekela (A) on October 25, 2009 at 11:48:40

In Reply to: RE: Belden 89259 question posted by jad on October 25, 2009 at 09:05:54:

This is the reason for using foamed Teflon as a cable insulation.

Solid Teflon has a high dielectric constant, which slows the propagation of electrical signals on the cable. Some audiophiles find the sonic signature of Teflon objectionable, so a foamed version would have less of whatever characteristic this is. Teflon is a sonically neutral dielectric to my taste, so I can't describe further.

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