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Negative feedback Amp=more faithful reproduction?

Negative feedback (NFB) vs zero negative feedback (ZNFB). There seems to be unsubstantiated contention that ZNFB amps sound more realistic. I know this is an age old debate favoring the ZNFB design, but I think most audiophiles have never bothered to look into this matter and believe the advertisements and proponents of zero NFB design. I have been in that camp until recently. My own experience and research into articles on this matter leads to me believe NFB is needed for faithful reproduction of music. I'm not saying NFB design is more "musical", which is a highly subjective term and usually means more euphonic or colored. I've posted a similar question awhile back, but I was hoping we can have a more evidence based discussion on this matter. Perhaps, we need clarification of descriptive terms we use to describe sound. My contention is, in general, NFB designs produces a more accurate or faithful reproduction of music than ZNFB designs. Here is a very good article on feedback and distortion:

http://sound.westhost.com/articles/distortion+fb.htm
dracule1
viridian's avatar
viridian
4,184 posts
 
Accuracy is, of course, a fiction, just the same as musicality is. That said, it's horses for courses. There is appropriate use of NF and there is inappropriate use. There are good sounding components that use NF and bad, and good sounding components that use no NF, and bad.

What you are saying is pretty much like, Ford and Chevy trucks use zinc plated bolts and Dodge trucks use cadmium plated bolts, so because the performance of Ford and Chevy trucks is better it must be the result of having used zinc plated bolts. Does that make any sense?
charles1dad's avatar
charles1dad
6,996 posts
 
This has been discussed many times with same division of opinions. The accuracy position has no absolute definition, nor does musicality and natural camp proponents.In the end we all choose components based on how they sound (our ears). Those who prefer the presentation of NFB designs should obviously buy them just as others who prefer ZNFB components should buy those. It's subjective and there's no avoiding that point.Trying to determine which side is right is fruitless. Buy what sounds best to you, you'll be happier.What does it matter if someone has different listening preferences. I'm glad there're multiple topology alternatives avaliable. There is no objective standard that is going to solve any thing.
Regards,
viridian's avatar
viridian
4,184 posts
 
Just to go on a little further.....

There's no way to know what "faithful reproduction" is, it's just a catch phrase, but, let's for a moment, kid ourselves and pretend that there is. In that event, how could you, as a consumer, isolate the fact that the reason that one component is superior in "faithful reproduction" to another can be ascribed to that one difference in circuit design, the use of NF?
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