haunyack;188075 Wrote: > "Unfortunately, because insulation stores and releases energy, it is > also a dielectric. In a cable application, all released energy is > distortion. The misnomer break-in is often used...
Actually some of this is real science. A cable is made up of two conductors separated by an insulator, and therefore has capacitance. Dielectric absorption is real, and so is capacitance change with applied voltage. I've seen caps that reduce in value by 50% with just 5v applied across them - the effect is not always small. So, I can believe that at frequencies where the effect of a few pF is significant, applying a DC bias might indeed change the characteristics of the cable. Whether it makes any difference at audio frequencies is highly debatable, though. But what really makes me laugh is the idea that the effect is somehow persistent. It's not; discharge a capacitor to remove the dc bias from it again and it's back to its original state almost immediately. All this would be a lot more plausible too if the dc bias were actually between the conductors that carry the signal. It isn't... -- AndyC_772 ------------------------------------------------------------------------ AndyC_772's Profile: http://forums.slimdevices.com/member.php?userid=10472 View this thread: http://forums.slimdevices.com/showthread.php?t=33615
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