quick questions about cable measurements
Sep 10, 2009 at 1:32 AM Thread Starter Post #1 of 6

atothex

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Was just wondering how cable specs interact with their intended application. Behind all the mumbo jumbo, all cables have ratings for resistance, capacitance, and inductance.

As I understand it, interconnect performance is most closely tied to capacitance, and the lowest capacitance cable is a good starting point. Alternatively, speaker cables are best when resistance is lowest. Can I assume headphone cables to be similar to speaker cables with regards to resistance? Also, what about digital cables? Other than having a standard resistance, do other measurements matter? I assume no, but maybe I'm just ignorant.
 
Sep 10, 2009 at 2:34 AM Post #2 of 6

Steve Eddy

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Depends.

While typically loudspeakers are intended to be driven from a source with zero resistance, some folks seem to be finding improvement by driving their headphones from sources with higher resistance.

It's not any sort of universal rule and like most things results can vary depending on the model headphone and the person doing the listening.

As for digital cables, it's most critical that their characteristic impedance matches the output and input impedances of the interface, which will usually be either 50 or 75 ohms. If the cable's impedance doesn't match, it can cause reflections and standing waves within the cable that can result in data errors.

k
 
Sep 10, 2009 at 2:45 AM Post #3 of 6

IPodPJ

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Quote:

Originally Posted by Koyaan I. Sqatsi /img/forum/go_quote.gif
some folks seem to be finding improvement by driving their headphones from sources with higher resistance.


Maybe not so much improvement as different flavor.
wink.gif
Let's see what the next ones do.
 
Sep 10, 2009 at 2:50 AM Post #4 of 6

Steve Eddy

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Quote:

Originally Posted by IPodPJ /img/forum/go_quote.gif
Maybe not so much improvement as different flavor.
wink.gif
Let's see what the next ones do.



Well, yes.

Point being, you didn't run screaming from the room with blood running out of your ears.
atsmile.gif


k
 
Sep 10, 2009 at 3:34 AM Post #5 of 6

DeusEx

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Quote:

Originally Posted by Koyaan I. Sqatsi /img/forum/go_quote.gif
Well, yes.

Point being, you didn't run screaming from the room with blood running out of your ears.
atsmile.gif


k



beerchug.gif
 

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