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Leach Amp pcb group buy interest

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I am interestested in several boards. I will know how many when we have a final design. Ed's idea of separating the front end from the output stage is a very good one and gives much greater flexibility in choosing heat sinking and output devices.
 
I realized in my work for industry a few years ago some 4 layers pcb and i know that it's more expensive .🙂
There were one layer for the GND,one layer for the +v and -v ......

But the question was ,is it possible to improve the performance with a 4 layers pcb.?

Serge
 
There was some plans for this a while back. I know Jens had drawn up the boards, and I think Tad had some protos made, and somebody did some testing and then ???. It seemed to evaporate. If we could resurrect those plans, I think it would be great...

No reason to have half-a-billion different minor revisions of this design floating around. A universal front-end with 3 or 6 output pair (plus double-barrelled) would be a fantastic option.

--Greg
 
the front ends are not the same, although if you have the super leach amp front end you can easily set it up for a lo-tim version.......

this is the thread....http://www.diyaudio.com/forums/solid-state/51392-leach-super-amp-pcb-re-design-lsaprd-12.html


Yes Tony ! Double barrelled front end and only few cut/jumper(copper trace) and voilà you get an universal Leach: 6 to 12 output and +/-50vdc up to +/-95 .
I remember building one few months after publication (Audio May 80). Have been replaced only 15years later.Would like to built a modern version.
 
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