William Sommerwerck wrote:

William Sommerwerck wrote:

There are no other classes. To call switching amps "class D", or to
create new designations for stepped B+ or stepped-bias designs thoroughly
confuses the original meaning.

So what would you call them ?

I wouldn't call them "classes", just a name describing how they work or what
they do.

That's why they're called a 'class' since everyone knows the output is AB.


As soon as you start giving design concepts fancy names,
every manufacturer will pick his own, and no one will know
quite where they are at ...

They'll do it anyhow, for marketing. If Hitachi has a class-G amplifier,
then Toshiba, even though using the same circuit, will call it class H,
simply to look original.

WRONG. Class G and H use quite different circuits.

They might be true, but that wasn't the point I was making. There is such a
thing as "product differentiation", and you don't make yourself look
different by appearing to copy someone else's feature.

Class G and H achieve similar results by different means. The distinction is
REAL not marketing.
http://en.wikipedia.org/wiki/Class_AB#Class_G_and_H

Graham