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Old 5th February 2004, 10:22 PM   #1
Prune is offline Prune  Canada
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Default Cable capacitance

Reading on the Venhaus fine silver interconnects site, I quote: "Ultra-low capacitance (there is a direct correlation with capacitance and signal rise-time, with interconnects)"

In other words, the cable has higher bandwidth. I fail to see why bandwidth beyond audio frequencies matters in an interconnect. Maybe someone can clear things up for me.
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Old 5th February 2004, 10:28 PM   #2
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Well, it depends alot on how long the interconnects are. If you are
running 10m long interconnects to monoblocks, for instance, you
can get quite a substantial capacitive loading which may both
have an impact on bandwith and driver circuit stability.
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Old 6th February 2004, 01:18 PM   #3
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Yeah, if you're running really long cables. In the average consumer lenths, it is almost not worth worrying about, unless you have a piece of equipment that is ultra senstive to capacitance, or is fairly high impedance.

-Bruce
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Old 6th February 2004, 01:59 PM   #4
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Default Re: Cable capacitance

Quote:
Originally posted by Prune
I fail to see why bandwidth beyond audio frequencies matters in an interconnect.
otherwise, how can you scare people into buying otherwise useless products?
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Old 6th February 2004, 02:14 PM   #5
sss is offline sss  Israel
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Default Re: Re: Cable capacitance

Quote:
Originally posted by millwood


otherwise, how can you scare people into buying otherwise useless products?
agreed
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Old 8th February 2004, 07:15 AM   #6
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Hi,

Quote:
I quote: "Ultra-low capacitance (there is a direct correlation with capacitance and signal rise-time, with interconnects)"
That's quite correct but other than greater bandwidth, transient response is also improved.

From Venhaus' POV, I can understand his concern.

Cheers,
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Old 8th February 2004, 11:08 AM   #7
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Quote:
Originally posted by fdegrove
That's quite correct but other than greater bandwidth, transient response is also improved.Cheers,

that's a "great" point.

But how many of us listen to 200Mhz songs?

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Old 8th February 2004, 11:34 AM   #8
Prune is offline Prune  Canada
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Rise time of transients is directly proportional to bandwidth.
Since humans can only hear to 20kHz, a (true) low pass filtering of the sound including any transients will not make an audible difference. Think of the transient as a sum of parts of sine waves. All of which are low pass filtered to 20kHz. So the transient rise time doesn't need to be faster than the rise time of an equally loud 20kHz sine wave.
So wouldn't having some amount of capacitance in the cable prevent very high frequency noise from getting into the amplifier and possibly modulating audible ones?
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