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Old 4th August 2005, 12:41 PM   #1
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Default What would be the (approx) output impedance of a Pass A-40?

(A guide to driving an ESL better) Thanks
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Old 4th August 2005, 05:28 PM   #2
Mark Kravchenko --- www.kravchenko-audio.com
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Default Check out the article

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

Down at the bottom you will find a PDF of the original article.
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Old 4th August 2005, 09:35 PM   #3
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Thanks - I'd seen the artilce but missed the graph.

The normalized graph indicates about 0.5

Cheers
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Old 4th August 2005, 11:57 PM   #4
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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
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