any idea?

[tadiam]

Have an +/- 22v power supply an 4 - 10.000 uf cap (two per channel).. need an recomendation
power amp schematic for this power supply.
20/25w per chenel good sound and elaborate schema..any idea?

[AndrewT]

try ESP for a discrete design.
or any of the chipamps, particularly Nuuk's (Decibel dungeon; http://myweb.tiscali.co.uk/nuukspot/decdun/).

[tadiam]

lm1875,lm3886 build this...no chips thanks

[djk]

http://www.passdiy.com/pdf/a40.pdf

Circuit boards available from AudioXpress.com for $6.

May be adapted to use locally available transistors, or run class AB.

[ostripper]

I read this post a couple of days ago and ported my two amps
for operation at +- 22v.

With just a change of 2 resistors I was able to get premium
performance at 35w/8r using a single cheap pair of NJW0281/
0302.

Final price for this was about 14$ per amp (mouser) but
what you get on a 3X3 PCB is a .08% distortion "blameless"
that sounds the same as its "big brothers" ,the FA1/ FA2.

No "threadjacking' here, but the design is being tested
with much abuse...
would be a sleeper to post a "mini frugalamp1" for any
interested...
OS

[tadiam]

thanks ostripper and djk ...and al diys