Damping Factor and Overall Negative Feedback.


These specifications are assigned to some amplifiers but what is the difference between them? I had thought they were the same thing. I read the specs on a Karan Acoustics KSA 450 amp today with a high damping factor (?dumping factor?) and no overall negative feedback.
mechans

Showing 2 responses by clio09

With regards to damping factor, is 4000+ really necessary? I know a lot of amps push that spec as if the greater the number the better the amp. I am not saying that this is Hegel's strategy because the use of negative feedback in general increases the damping factor (and also reduces gain). So that number may just be tied to the amount of feedback used in the circuit. However, if they claim that damping is 4000+, what amount of feedback are they using in the circuit and is that amount really necessary?

You may want to check this out. It’s a somewhat raw previously unpublished chapter of a book from Roger A. Modjeski, the designer of the amplifier referenced by @tomic601 a couple posts above:

While the whole chapter is a good read the discussion on feedback and damping starts with the 3rd paragraph.