Arny Krueger wrote:

"Eeyore" wrote
Arny Krueger wrote:
"Eeyore" wrote

I'm concerned about the transconductance 'modulation'
with signal level since this introduces non-linearity.

Again, covered in
http://www.dself.dsl.pipex.com/ampins/dipa/dipa.htm

Which is what I'm designing out.

Although I'd hoped this thread might be more about any
audible benefits of Class A rather than a discussion of
design principles ( I'm quite au-fait with those ! ).

Like I said before, I've never done any DBTs involving Class-A amps. This is
partially because I've never seen a true Class A amp that was capable of
interesting power levels, in real life.

Fair enough.

I've heard enough positive comment on them to pursue my line of thinking on the
matter already btw.

Graham