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Audio articles of interest

As i search various subjects on the web, i run across short but interesting articles that i'd like to share with others. I'm sure that you folks find articles that you would like to share on occasion also. As such, let's see if we can keep one common thread for these "finds".

As a matter of convenience for all involved, i would like to encourage those of you that contribute to this thread to try to use the "markup tags" that allows one to simply click on the link and see what the article that the was being discussed. If you don't know how to do this, there are directions directly below the section that one types in their response at. It is labeled "No html, but you may use markup tags". One can click on this link and it will tell you how to post using clickable links, etc... step by step. If you are worried that it may not work properly, try previewing your post prior to submitting it. If the link is not working properly, simply hit the "edit post" feature and correct the mistakes that you made.

I'll start off with a brief yet interesting article about a guy building and setting up a dedicated listening room that i found. I hope that others will contribute to this thread and like the idea as it gives us a chance to expand our audio horizons beyond the normally travelled paths. Sean
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sean
gregm
3,395 posts
 
Another one on bi-amping that may interest some.

(As many of us know, multiamping is a subject Sean has never touched :))

OTOH, I received today a fascinating, long article (a book, in fact) that Sean had kindly copied and sent me. Thank you, Sean!
sean OP
6,231 posts
 
Here's an interesting article about grounding. While it available from a website that i've frequented before, i never ran into it. Steve Eddy was kind enough to post a link to it on AA and i think that it's worth checking out. That is, IF one wants to learn about AC systems and grounding. It is in PDF ( Adobe Acrobat ) format, so you'll have to deal with loading up, etc...

Grounding: what works and what doesn't.

Something else that i noticed in this article that is worth repeating. Large gauge solid copper wires ( actually flat & wide sheets like those used in Goertz speaker cables ) are more effective at conducting signals over a wider frequency range than stranded wire or braided straps. By "braided straps", i'm talking about the woven braid that looks like coaxial shielding that is commonly used for "ground strap" in automotive / dc applications.

As this article points out, there are VAST differences between what makes up a good AC and DC ground. Taking that a step further, even a good AC ground may not be a good RF ground. As such, achieving a good low resistance ground over the widest possible bandwidth is what will work optimally. After all, shunting RFI to ground and then having a ground that is not conductive at those frequencies simply turns your ground wire into an antenna to re-radiate the signal. NOT good but probably more common than most think. Sean
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PS... use more solid wire, use more solid wire, use more solid wire, use more solid wire : )
cdc
1,677 posts
 
Make your own mini-system, this is something I've always wanted to try:
mini system
cdc
1,677 posts
 
Magnan audio tweaks
magnan
sean OP
6,231 posts
 
Positive Feedback has an interesting article / interview with Steve & Janet Nugent of Empirical Audio. For those that don't know who Steve is, you may have read some of his posts here and at AA under the name of "Audioengr". Not only does this give us a chance to put faces with the names, the interview covers quite a bit of history as to Steve's very impressive technical background and how / why he designs things the way that he does. While Steve and i have shared many common beliefs / findings on several wire related subjects yet discussed them from different points of view, i now know why thanks to this article / interview. Sean
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