Mes, you are absolutely correct. On a serious note, please allow me to requalify the statement I previously made. "Out of everything I heard" does not that I have heard "everything". Nor do I feel that anybody has heard "everything".
I personally feel that AC power purification is, in a large part, based on the individual user's needs. Fortunately, I live in an area with a somewhat lower population density in regards to the amount of AC grunge fed back into our AC lines. Obviously, the more homes, factories and commercial buildings that comprise your living area, the more garbage that will be fed into your AC power. So, my AC purification requirements are probably much less than those who live in more densly populated areas.
Generally, my approach in trying to make informed evaluations begins initially with looking into the manufacturers actual design criteria. I am somewhat familiar with the design criteria established by PS Audio, API, MIT, Monster, Sound Applications, Exactpower etc. But, by no means, would I ever consider myself an expert. Although, I find it interesting that so many different approaches (torroidals, AC regeneration, isolation and grounding schemes, etc.) can be used to achieve what pretty much ends up being somewhat similar results.
At that point, my next consideration is price point justification. For me, "cost effective" is an important consideration. I wish I was in a situation where cost was no object. But, I'm not. This requires me to do a little more homework, a little more research, and, at that point, hope that my resourcefulness pays off.
Let's keep in mind, this forum is designed to allow for an open exchange of ideas. Many of these ideas are opinions. And everyone's opinions are going to be different. But, if in any way, I can help someone to make an intelligent, informed decision, then all the better.
Nothing would please me more than to receive an email from someone thanking me for a suggestion that worked for that person. Even better, if someone contacted me stating that my suggestion yielded acceptable results and also saved that person a significant amount of money.
So, getting back to the original subject, my suggestion to Muratc would be to log onto http://www.exactpower/work.php and do a little reading. Hopefully this will provide a new source of information to use as a basis for comparison. If not, it will simply demonstrate another manufacturers design approach to AC purification. To me, I feel it is an interesting concept. But, then again, that's just my opinion.
