Srajan, in your unfolding Canor I4S review, your factory contact Ivan mentions that its transistors do away with the usual degeneration resistors which your explanation refers to as a form of feedback that seems to be other than the usual global and local feedback loops. If I got this right, does this imply that even so-called zero-feedback amplifiers may use this form of feedback? I seem to recall having read about this subject in one or another of your Nelson Pass amplifier reviews but I can't remember which. Do you by any chance know of other amplifiers or brands which let their transistors run without those resistors? Thank you. Ken
Hello Ken, this kind of goes beyond my – um, ken. My assumption is that degeneration resistors are a default solution so very common. Does this imply that if not outright mentioned as being absent, so-called no-feedback amplifiers still use them? That I couldn't tell you but the way Nelson wrote about it, I got the sense that yes, they do get used but go unmentioned. By now we're into technical details far beyond my grasp. I can only say that in 23 years of doing this, I've only come across two mentions of no degeneration resistors: FirstWatt and now Canor. From that I assume that it's rarely done. Srajan
