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In Reply to: RE: A Question for All... posted by thetubeguy1954 on July 31, 2022 at 21:34:59
Zero is the answer my engineering brain hints at.
Gsquared
Follow Ups:
called effective dielectric constant which is essentially the product of L and C with a constant involved. It is a measure in the time domain. Ideal value is 1.
Here are a couple of examples:
Belden 5T00UP speaker cable-3.77
Nordost Valhalla-1.32
Nt
Air is 1.0
Edits: 12/02/22
and refresh your understanding of the word "effective". An equivalent term yielding the same results is "velocity of propagation". That's what Nordost uses.
Or, just argue with the wall. :)
If your rule brought you to this point what good is your rule?
as are my JPS Labs Superconductor+ cables with a similar EDC. Along with Better Cable Blue Truth Ultras in balanced XLR.
The most transparent cables in my experience share low ( <1.5) EDC.
From Nordost web page,Q: I recently bought a pair of Nordost interconnects, and I noticed arrows on the heat-shrink. Is there are reason that these cables are directional? If so, which way should I install them?
A: Typically, when cables are manufactured they do not have any directionality—they acquire directionality as they break in. However, Nordost single ended (RCA) interconnects are built as directional cables, since the shield is only connected at the source, or output, end. When installing the cables into your system, the arrows should always point away from the source. For example, from a CD player to an amplifier, the arrows should point towards the preamplifier or power amplifier.
> > > > Nordost actually doesn't believe in "directionality," in the sense I'm always discussing - that wire (and consequently cables) sound different depending on direction. I am not referring to shielded cables or single ended cables, those are separate issues. Nordost cable arrows are only for proper installation for Nordost cables with *shields* Their belief that "cables acquire directionality as they break in" is incorrect. All wire is directional (physically asymmetrical) as a result of the manufacturing process. So cables that have thoroughly broken in will sound different when reversed. Just like new cables. Just like fuses.
People jokingly say power cords can't be directional because they have a plug at one end. Yet power cords are directional too, they need to be "controlled for directionality" during manufacture, like AudioQuest does. Wire and cables exhibit directionality in AC circuits and DC circuits.
By the way, I would take air dielectric constant of 1.0 over 1.5 EDC any day.
Edits: 12/03/22 12/03/22
Maybe call yourself with the Teleportation Tweak.
Everything's topsy turvy. Me topsy, you turvy.
Zero of any of the properties like resistance, inductance and capacitance is not physically possible.
It is possible to make a short loudspeaker cable's properties so small that the effect they have isn't detectable by measurement of the loudspeaker or blind testing (listening without knowledge of which was which) .
One can do a null test and "hear" the difference between one end and the other, a difference produced by the series R, L and parallel C in the cable.
BUT hardware store extension cords turned into speaker cables have more inductance than most speaker cables (larger spacing between conductors) and may be endowed with thick insulation instead of copper.
Not glamorous but this stuff (low loss, flexible modern RG-8 coax) works really well for speaker cable, something like #9 or #10 conductor. Very low R, L and C per foot.
Belden 9913
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