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Re: Cables have direction/direction my ass
From: Jimmy Fowler <firstname.lastname@example.org>
>cables have directionality, despite arguments to the contrary. it has to
>with the structure of the copper "lining up" in such a way that
>better signal transfer.
Please allow me to put on my electronics engineering hat a moment. How
line up copper? I need to see the physics of copper molecules orienting
themselves as the liquid metal cools into wire. Someone's pulling your
Lines up indeed.
>basically, cables are tested before they leave the
>shop/factory/garage marking the direction. however, it takes hours of
>actual signal carrying for the cable to "learn" the direction and utilize
>this natural physical attribute.
And how does passing a signal through wire teach it anything? There is no
physics to this marketing BS.
>no offense intended, but all copper wire isn't the same. the only
>difference is the level of purity. is this an audiophile issue? yes.
>the average joe hear a difference in copper purity? probably not. there
>are, however, devices that determine this level of purity. the impurities
>act as speed bumps, sort of...the more impurities, the less your signal
Yes, impurities change the resistance of copper wire. And that's it.
drop will result. But wire is so pure that, the difference between 100%
copper and the worst wire you ever bought will not cause a perceptible
amplitude of the signal it passes. And frequency response is unaffected.
[Disclaimer: I'm talking about AUDIO band analog signals.]
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