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Do I esentially have a class A amp?

I have a Krell KST 100 which has class A/B topology but it runs in class A up to 50 watts or half power before sliding over to class B. At most I may use 10 watts and at that very rarely when I drive my Vandersteens. So my question is do I essentially have a class A amp?
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Showing 2 responses by bifwynne

bifwynne
2,069 posts
 
Kijanki, there have been many threads which speak to the trade-offs of using NF. Certainly, Ralph (Atmasphere) has written quite a bit about NF.

Just curious, does it matter how the NF is applied: local or global. For example, my amp uses a form of local feedback. I believe ARC describes it as "partial cathode following," which in English relates in someway to the topology between the output tubes and the output trannies.
bifwynne
2,069 posts
 
Kijanki, Could you translate the paragraph you wrote into English please, particularly the phrases framed with double astericks (**):

"Such amp will have 0.5% THD and perhaps only 50kHz bandwitdh not to mention **relatively high output impedance.** THD distortion is not that audible, 50kHz bandwidth is passable and **output impedance doesn't matter because inductor in series with the woofer is about 0.1 ohm (limitting DF to 80) while speaker impedance (being source impedance for back EMF) is mostly resistive.**

Thanks
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