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What makes an amp Class A, A/B etc,

I was wondering,

What makes an amp Class A, A/B and other designation, and do these ratings apply to Pre-Amps and Phono sections ?

Thanks for this and other comments to past queries here on the forum.

Best Regards
Groovey Records

Listening to
Tyranasaurus Rex-Prophets, Sages, Seers and Sages. The Angels of the Ages
Fly Records Reissue Toofa 3/4
groovey

Showing 1 response by rauliruegas

rauliruegas
13,123 posts
 
Dear groovey: Feedback is a different subject.

Now, a class A amplifier design it is not always better than a class AB or B design operation. I heard over the time some class A amps that sounds not so good and AB that are really fine, all depends on the whole amplifier design and not only if it is class A/B/D/etc.

Regards and enjoy the music.
Raul.
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