I think you will find the answer to your question if you read about amplifiers by Soulution. Apparently, their research showed that in conventional amplifiers, the negative feedback that was applied was slightly out-of-time with the signal it was trying to correct, therefore throwing off the coherence of the original signal. I remember years ago hearing a similar criticism of the servo systems in Velodyne subwoofers. Anyway, they supposedly found a way to corrrect that problem, and I think that it is their position that negative feedback is not a bad thing when it is implemented in the way that they do it. The only bad thing is the price of their amplifiers...whew!
What is wrong with negative feedback?
I am not talking about the kind you get as a flaky seller, but as used in amplifier design. It just seems to me that a lot of amp designs advertise "zero negative feedback" as a selling point.
As I understand, NFB is a loop taken from the amplifier output and fed back into the input to keep the amp stable. This sounds like it should be a good thing. So what are the negative trade-offs involved, if any?
As I understand, NFB is a loop taken from the amplifier output and fed back into the input to keep the amp stable. This sounds like it should be a good thing. So what are the negative trade-offs involved, if any?