If I install '20A dedicated circuit'

Perhaps some people confuse dedicated lines with clean AC with the fact that in-house generated AC noise from dimmers, microwaves, appliances, etc. can be minimized by installing dedicated circuits/lines preferably on the opposing phase/leg in the service panel of where the majority of dimmers and appliances reside.

That's exactly my understanding, and it's why I also use conditioners on the dedicated lines.

Stehno et. al.

It is my opinion that people do sometimes confuse dedicated lines with mains conditioning and that somehow a dedicated line will clean up the incoming AC. Another method that I happened upon is the use of isolation transformers per the attached web site http://www.audio-consulting.ch/. I have no affiliation with the company and do not currently use this method of mains conditioning. I have considered it, however, since my experience with passive conditioning was not positive.

Chuck

Thanks, Chuck

I would think that a dedicated line is used to isolate your components from the rest of the items in your environment ie, dimmers, microwave, digitals, electrical motors etc. Given this, wouldn't it be advisable to further isolate the 'dedicated' lines by using a seperate ground system as well ? And then to keep one dedicated line for analog components and a second dedicated line for digital . Although none of this would 'clean' the incoming power it would, however, keep it from being contaminated further .
Just my thoughts, YMMV.