Building "The Cheapskate!" ($125 or less): Balanced Power Unit
http://home.comcast.net/~thomasw_2/CheapskateBP1.html (http://home.comcast.net/~thomasw_2/CheapskateBP1.html)
FAQS: What is balanced power?
http://www.equitech.com/faq/faq.html (http://www.equitech.com/faq/faq.html)
I've been using balanced power devices for quite a few years. And have been very please with the improvements they provide. Unfortunately during that time, the pricing for these has gone up, and up, and up. There's no rocket science involved in these, primarily it's just a special transformer, and AC outlets. As a result I decided to make up a couple of simple DIY devices using readily available parts. One can add in low cost 'options' such as RFI/EMI input/output filters if desired. These will improve the performance of the unit.
Muy interesante Nepro, gracias por la info ;)
Saludos