Class A?


Can someone please help explain to me what a Class 'A' rating on an amp means? What are the other ratings? If you know of a recomended source to explain this I would love to know.
Thank you in advance!
keithcady
"Class A" is also used by Stereophile in their recommended component ratings. You may occasionally see an ad for a component that describes it as "class A", and that may be referring to Stereophile's recommended components list, not amplifier design.
So there must be some Class A Class A amps and some Class B Class A amps and so on. Only in Audiophilia. Sorry, I couldn't resist. :)
Sndsel, Just cause it runs in class A doesn't mean its better than class a/b or b. Just wondering cause I tried a class A amp(plinuis 100) on my martin logans and then I tried a bat vk200, I used the bat 3i pre with both amps. The bat vk200/3i killed the plinuis/3i combo. I really wanted the plinuis to smoke the vk200 and I expected it to cause 3people from the audio store said it should, but it didn't. Is it cause the plinuis is not stable down to less than 2ohms, were the bat is. I read my martins needed a stable amp. I could have bought the plinuis for the same as the bat, but the bat was better so I bought it. Any insight on this. When I took the plinuis back and kept their bat the guy at the audio store was shocked.
Class A is not just output stages. It can be but many components are Class A input to output.