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Nope, yep, and nope.

Belden 83393 is quite flexible, has noise reducing conductive cloth tape wrapped over the twisted pairs, and uses FEP teflon for the twisted pair wire insulation. A silicone rubber jacket is used.

This makes an excellent mic cable for live performance use, where the mic is going to be handled and the cable moved. It also makes a killer guitar cable, but some guitarist's don't like the sound, too pure, not enough 'tone'.

Conductive plastic is often used as a sheath for coaxial mic cables, between the core insualtion and the braid, but the problem here is that this material is now within the electric field of the center wire and outer braid, and can affect the EM field, possibly distorting it.
In my experience with such cables used at line level in a home playback system, they never sound as clear and clean as a cable without the conductive sheath.

[ Semiconductor fillers help cushion cable's varying capacitance because of its rapid movement. ]

Not quite the situation. You are claiming that a semiconductive filler would act as a mechanical damper and by helping to reduce relative motion between the conductors, reduce capacitive variations in the cable.

The fly in this ointment is that the HF roll-of due to the cable capacitance is so far out side the audio band, and that any very small variation in capacitance would only swing the pole a minute amount so far away from audio. Where are Jneutron's infamous mosquitoe's when you need them?

It is much more likely that the reduction of tribo-electric action and piezo-electric action is what the (semi)conductive filler is achieving. Otherwise, if it was just due to the damping, a non-conductive filler would work as well.

BTW, I find it amusing to see you "discovering" all the various aspects of cables, one by one, as you come to SLOWLY (ever so slowly), realize that there is more to audio cables than just dirt simple LCR.
Been there, years ago and many times, yet so many naysayers can't be bothered to look past the ends of their upturned noses to see what was there all along.

You will find it amusing that I actually recomended Belden 1505F to a hard-core disbeliever, it was as far as he could bring himself to go, and superior to the crap he was contemplating using instead.


Jon Risch

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