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joaco wrote:

About the 2A3/45 , I ask a technician from Japan that lives several years in Chile to build it , he develope the whole tech repair lab for pioneer here or panasonic I do not remember well , but he leaves Chile about 6 years ago and return to Japan , he build it from scratch , living near akihabara can get any component .Please as he does not permit any copy of his site go to http://www.single-ended.com and click on "45&2A3" (on top) and the first schematics is my amplifier you can see the amp is the second one , so you can get your own conclusions about the circuit design ... ( i need to ask you something about it later ) I do not have a scope but im very interested in buying one .

Your amp has input capacitor, so it shall be working fine with class D regenerators like PP2000 and presumably your regenerator.

joaco wrote:

there was a problem on an earlier post , the site of this manofacturer is http://www.fernandezfica.cl/ but I found some links on their catalogs to this site http://www.socomec.com/Home_en.html . About 4 years ago a local guy who owns a studio and very good quality components post he had founded a solution for his needs . I know this guy tried every PS audio that was available and some more because he post it on a local forum . He end up buying some devices (I do not know which ones) from fernadez&fica and post that were better for his needs than the ones he had try , so he sold all his other filters . At that time I wasn´t aware of this phenomena as I was fighting with the ugliest horn ever made , the altec 811-B .One thing I have notice and I do not know if it is responsability of the dac chip itsel (multi bit) or the clean ac wave is that now the music is very articulate , it does have enormous sense each note after the other one , it is very difficult to explain but it is like changing the director of an orchestra to a better one in terms of musicality  . Maybe a missing note or distorted one can inarticulate music in such a way that we don´t like it or feel confortable with it .One positive thing is that I called the guy who sold it and tell it was a good unit but that I need a zero noise solution and that one friend of mine is also interested , for my surprise he told me that maybe they can change or adapt the unit for audio use and he is going to ask permission for modifications, I prefer not to have any hope on his words but maybe something interesting can came out of it . I will try the unit in different modes and let you know.

I would like to point out that your links still do not clearly indicate the products you refer to. There are literally 100s on-line converters produced by dozen companies. You need to specify what exactly unit you are taking about.

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