What would be the (approx) output impedance of a Pass A-40?

[rick57]

(A guide to driving an ESL better) Thanks

 

[Kravchenko_Audio]

Check out the article

http://www.passdiy.com/legacy.htm

Down at the bottom you will find a PDF of the original article.

 

[rick57]

Thanks - I'd seen the artilce but missed the graph.

The normalized graph indicates about 0.5

Cheers

 

[woody]

I believe you realy need to look at the graft #7 which
indicates a damping factor of 300 or less. The graft earlier in
the article is more of a learning tool comparing different
output bias settings.

woody