A question about audio interconnects for the ones here with such knowledge.

G · 21st February 2009, 08:30 PM

Is 67pF per meter @1Khz a good for a analog interconnect? Thanks.

Eli Duttman · 22nd February 2009, 05:40 PM

Gavin,

Nobody else has spoken up. So, I'll take a shot at your question.

67 pF./M. is roughly 20 pF./ft. That's quite satisfactory. Sight unseen, that low number suggests unshielded construction. Unshielded cables are not satisfactory for long runs or in high EMI/RFI level environments.

Gordy · 24th February 2009, 02:25 AM

I guess that it is a balance of virtues (or a balance of compromises) when it comes to cales and impedance. If you want to go co-axial then RG59 is about the capacitance level that you stated.

HK26147 · 24th February 2009, 02:54 AM

This might help:
http://www.sengpielaudio.com/calculator-cable.htm

21st February 2009, 08:30 PM	#1
G diyAudio Member Join Date: Apr 2002 Location: Belleville, IL.	A question about audio interconnects for the ones here with such knowledge. Is 67pF per meter @1Khz a good for a analog interconnect? Thanks. __________________ Gavin

22nd February 2009, 05:40 PM	#2
Eli Duttman diyAudio Member Join Date: Apr 2004 Location: Plainsboro, NJ	Gavin, Nobody else has spoken up. So, I'll take a shot at your question. 67 pF./M. is roughly 20 pF./ft. That's quite satisfactory. Sight unseen, that low number suggests unshielded construction. Unshielded cables are not satisfactory for long runs or in high EMI/RFI level environments. __________________ Eli D.

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24th February 2009, 02:25 AM	#3
Gordy diyAudio Member Join Date: Nov 2006	I guess that it is a balance of virtues (or a balance of compromises) when it comes to cales and impedance. If you want to go co-axial then RG59 is about the capacitance level that you stated.

24th February 2009, 02:54 AM	#4
HK26147 diyAudio Member Join Date: Jan 2008	This might help: http://www.sengpielaudio.com/calculator-cable.htm

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