Building shielded IC's. Should both shield ends be terminated at the RCA, or only one?


I'm building some interconnects that are shielded, and as my question states, are both shield ends terminated at their respective RCA connector bodies, or only one? If one is not terminated, which is better left unterminated, the source end, or the receiving end?

I tried finding this out but couldn't find an answer, I'm sure someone here knows the answer.

Thanks much,
Dan
Ag insider logo xs@2xislandmandan
Folks, I just found the answer to my question, so you fine people don't need to respond. Thanks anyway.

Regards,
Dan
Hi Dan,

I had almost finished composing the following response a little while ago, prior to your post just above. I then had to leave the computer for a while and when I returned I see that a response is no longer needed. But since I had almost completed it I’ll post it anyway, FWIW:

If there are only two conductors in the cable, namely the shield and a single inner conductor, the shield would have to be connected at both ends.

If there are two conductors within the shield, one of those conductors would be connected to the center pins of both RCA connectors, of course; the other one of those conductors would be connected to the ground shell of both RCA connectors; and the shield would be connected to the ground shell of just one of the RCA connectors.

In the latter situation it would be best IMO to connect the RCA connector which has the shield connected to it to the component supplying the signal. I believe that is the majority view, although over the years I’ve come across a few opinions suggesting the opposite. It’s easy enough to try it both ways, of course, and you might even find that it makes no difference.

Best regards,
-- Al

Actually since no DIY cables are worth the time it takes to make them (let alone the cost of materials) the best solution would be to buy the best already made cables you can find.
@millercarbon I made the vh audio diy fine silver interconnects and found them excellent in both sound and value. Saved me hundreds. Same with the Duelund tinned copper speaker wire that many people are using (including Jim Smith of "get better sound" fame).
Miller, I was expecting this exact comment from you, and you didn't disappoint. I enjoy doing things like making interconnects, and I can't afford the high-priced spread. Some of us just have to do what we can with what we have, and love it just the same, maybe more.

I firmly believe my largely DIY system can outshine very many mega-buck systems. It's the best I can do, and I'm happy, and that's all that matters.
Al, thanks for taking the time to answer my question. Your participation, and always well informed input, is always appreciated.

Thanks so much for all you do here.

Regards,
Dan
@millercarbon - I would also disagree with that assessment. There are a number of cable brands that provide bulk cable at a significant discount compared to their terminated cables, such as Furutech, Neotech, DH Labs, Kimber, Cardas, and others.

Terminating speaker cables with high quality connectors is generally very easy and saves considerable money. Power cables are also generally fairly easy and the connectors used by most brands are readily available. Interconnects are a bit more challenging because they require good soldering skills to achieve the best performance, and many audiophiles don't have this experience. 

For those on a budget, or that enjoy building things, or that want to experiment with alternative cable geometries or materials, DIY is a great way to go. And many of today's popular brands started out as a DIYer's hobby project. 

I've personally made all my current power cables and speaker cables by using bulk cable and high quality connectors, and I enjoyed the process as well as saved at least a couple of thousand dollars compared to buying "factory"-terminated cables. 
I certainly appreciate millercarbon’s singular grasp on all of these audio absolutes. All hail millercarbon!
Shielded cable provides a "closed in" sound. If you need it its one thing...but try to do without it. I built my power cords from top of the line Furutech and Oyeida connections with Accrolink cable.....I like the Furutech a bit better, but they’re both good...(they look like carbon fiber...nice looking)