Propeller Head Plaza Technical and scientific discussion of amps, cables and other topics.

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The highest BW cables are seemingly most often Ag.

Posted by Ugly (A) on January 24, 2007 at 13:53:14

In Reply to: Your thoughts on silver's self induction posted by WinthorpeIII on January 23, 2007 at 08:55:26:

But I believe this is because customers paying a premium for them would demand better specs not that silver is less significantly less likely to have some mutual inductance or internal inductance. IMO, especially at audio frequencies, the inductance will be related to the permeability of the material surrounding the current ie conductor insulator air gaps etc. not necessarily the conductor itself. Also the fact that silver has slightly better conductivity means it should pass more current for a given applied voltage. The fact that currents may be larger through silver conductors means the effect of whetever inductance IS present in the system will will be greater. This isn't due to the inductance of the silver itself but rather a second order effect, and I would geuss that this effect is too small to notice in most cases.

If the physical layout/construction is the same besides conductor material, the graphs I have seen make me think that a human listener will be hard pressed to detect a difference using only his ears while comparing using audio frequency signals. This high BW is an indicator that the particular cables I am referring to are mostly resistive until you get up in the GHz range. As others have said, this is due to the physical layout of the conductors more than the fact that silver is being used instead of copper. Inductance and capacitance must both be considered while designing these high performance cables when you are after a multi GHz BW.

The way I see it the only real advantage to silver is the lower R, and any other percieved benefits are available to designers using copper conductors. Of course this is all conjecture and I have not subjected this hypothesis to the scientific method.

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Kimber Kable

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