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Old 1st August 2013, 04:10 PM   #11
4PLaY is offline 4PLaY  Philippines
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Thanks guys, I'm setting this cable aside now.

Anyway, trying to make an interconnect cable for me is something new. I have not soldered anything before in my life so consider this as a beginner's step.

The guides I've been looking at are here:

http://diyaudioprojects.com/Power/DI...onnect-Cables/

http://www.platenspeler.com/diy/cabling/uk_4play_1.php

http://diyaudioprojects.com/Power/diySilver/

Last edited by 4PLaY; 1st August 2013 at 04:16 PM.
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Old 1st August 2013, 06:00 PM   #12
DF96 is offline DF96  England
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Ignore the nonsense about braided wire (encourages RF to get in) and silver (unnecessary). Your first link is OK, in the sense that it doesn't actually spout much nonsense - maybe overly expensive, but that is merely a matter of taste.

Just buy some reasonable commercial quality screened cable, and good quality plugs. Learn to solder - this is by far the most important part of the exercise. A good joint with cheap components will always sound much better then a bad joint with the most expensive components in the world.

Audio interconnects really are simple. I suspect that some people like to think they are complicated as a sort of displacement activity: they can't do electronics so do cables instead. You can safely ignore what such people say.
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Old 1st August 2013, 09:05 PM   #13
4PLaY is offline 4PLaY  Philippines
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The cables I need are really just short interconnects from DAC to AMP, I have so many different cables lying around given to me by a friend who sold all his professional and band equipment, so I have an assortment of mic & guitar cables. So I got the cables, I got the plugs, my final concern now is just the shield, what do I do with it. So many contradicting ideas. Solder it on both ends? Solder on Source end only? or not to solder them at all.
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Old 1st August 2013, 09:44 PM   #14
DF96 is offline DF96  England
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RCA combines shield and signal return. For a normal coax cable there is no problem: inner to inner, and outer to outer. For a shielded twisted pair it gets more complicated as the plugs force you to connect conductors which the cable keeps separate. The shield must be connected to outer at one end; I'm not sure what is best for the other end. Otherswill comment. For simplicity just stick to coax for short connections.
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Old 2nd August 2013, 04:35 AM   #15
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Never connect shield on both the ends.

http://www.proaudio-technik.de/item?...wnloads&item=2

Gajanan Phadte
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Old 2nd August 2013, 12:06 PM   #16
marce is offline marce  United Kingdom
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Read Henry Ott, connecting the shield at one end is a waste of time, it does not provide any shielding from RF, your advice is misguided and wrong.
It is a shield.
If you have a ground loop problem sort it out.
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Old 2nd August 2013, 12:26 PM   #17
AJT is offline AJT  Philippines
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Quote:
Originally Posted by 4PLaY View Post
The cables I need are really just short interconnects from DAC to AMP, I have so many different cables lying around given to me by a friend who sold all his professional and band equipment, so I have an assortment of mic & guitar cables. So I got the cables, I got the plugs, my final concern now is just the shield, what do I do with it. So many contradicting ideas. Solder it on both ends? Solder on Source end only? or not to solder them at all.
whatever you do, realise that the signal will need a pair of lines, one for the signal and another for return to complete the circuit...
you can work your way basing from these guidelines...
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the best advertisement for a good audio design is the number of diy'ers wanting to build it after all the years....never the say so of so called gurus....
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Old 2nd August 2013, 12:28 PM   #18
DF96 is offline DF96  England
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A shield connected at one end will reduce hum by acting as an electrostatic screen. It won't stop RF, but if you wanted to stop RF you would use coax.
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Old 2nd August 2013, 12:48 PM   #19
qusp is offline qusp  Australia
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this always bends my mind, its RCA, there is only 2 terminals, no dedicated shield connection, there is continuity between the shield and ground at both ends whether you connect the shield at both ends or not. by connecting one end only, all you do is make the shield less effective, it doesnt magically mean there is no continuity and noise will just dribble out into ground at the connected end.
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Old 2nd August 2013, 01:10 PM   #20
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It boggles my mind how much misinformation and outright BS circulates around our hobby when it comes to interconnects, lots of claims, little evidence, you're just supposed be "believe" I guess.
Quote:
Never connect shield on both the ends.
- is really bad advice for someone using simple single conductor with a shield, in that case both ends of the shield MUST be connected to ground or you'll get a really loud humming noise and litte actual signal through. If you're using multi-conductor shielded, twisted pair surrounded by a shield for example, then the shield should be connected at one end only with the ground connection made through one of the twisde pair wires, then the end the shield is connected to usually will be connected to the signal source for minimum noise.
I agree with DF96 here - the best solution is just go buy some decent quality interconnects somewhere, it's difficult to improve on the quality of commercially supplied units by building your own. So unless there is some compelling reason, like specific length requirements or something, forget building your own until you gain more experience working with components like these.

Mike
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