Best or very good 10-20w amplifier schematic

[Jonas83]

Hi.

Looking for a really good 10-20w amplifier schematic, tought is to build a multichannel amplifier for multiamped active xover setup.
So, tossing out a question if anyone knows a suitable design, currently using a 11x tda setup, but.... want something better than that.

/jonas

 

[Lojzek]

I have built once an excellent design called "Micro-Mite" by G.Randy Slone, published in "The Audiophile's Project Sourcebook". It has got a short circuit protection and only needs a separate board for dc protection and turn-on delay to be complete. It is supposed to work off 24V center tapped, 2A transformer. Nominal output power is 12W/8ohm. What I especially like about this design is that the enclosure to house everything is rather compact and the heat sinks can be a scrap piece of aluminum.

 

[rsavas]

Mark Johnson has the compact version of Bob Cordell's super gain clone using the LM3886 chip which was basically designed for this purpose.

 

[00940]

Mark Johnson has the compact version of Bob Cordell's super gain clone using the LM3886 chip which was basically designed for this purpose.

The "compact" board is not a version of the super gainclone, it's just a generic lm3886 implementation (as the lm3886dr or my open source boards). Nothing wrong with that but probably not very different from the TDA. The super gainclone might be marginally better but, from experience with the topology, I wouldn't expect miracles either.

 

[Jonas83]

Will look into this "micro-mite" sounds very interesting.

Actually i was into those gainclones from the start, but i had a bunch of tdas laying so went with that, and as said, the differance between gc and tda would not be worth a rebuild at this point. But, iam greatful for every answer 🙂