P.S. to my last post. Was thinking to myself that if zero negative feedback is so disadvantageous, why would top flight companies like ARC use it???
This is just a guess ... so here goes. Perhaps simply stated ... NF is used to reduce the output impedance and increase DF for **marketing** purposes.
As Ralph and Al have explained many times already, the world of tube friendly, true Power Paradigm speakers is not as large as Voltage Paradigm friendly speakers. So .. using NF to reduce output impedance and increase DF increases the playing field of speakers that may be compatible. That's my thesis.
Perhaps a good case in point is the match with my amp and speakers. Technically speaking, my speakers are poster-child "SS-amp" friendly speakers because they have rough impedance and negative phase angle functions. Yet my ARC amp manages to muscle its way through the tough spots with a modicum of aplomb.
I am somewhat dubious that a true Power Paradigm amp having a "high'ish" output impedance would do as good a job. Not because of design, build or sonic deficiencies. But just because of the "high'ish" output impedance. At the very minimum, all other factors being equal, there will be a tipping point where acoustic coloration will outweigh reduced NF induced distortion (e.g., TIM and odd-ordered harmonics).
I don't know how most Power Paradigm amps address power supply issues. I suspect that access to lots of joules can only be a good thing when the amp is being tasked to deliver current when called upon.
This post is just a bunch of guesses. So please don't come down hard on poor little me. Perhaps Ralph who is in the business can speak to the bona fides of my surmises.
Cheers,
This is just a guess ... so here goes. Perhaps simply stated ... NF is used to reduce the output impedance and increase DF for **marketing** purposes.
As Ralph and Al have explained many times already, the world of tube friendly, true Power Paradigm speakers is not as large as Voltage Paradigm friendly speakers. So .. using NF to reduce output impedance and increase DF increases the playing field of speakers that may be compatible. That's my thesis.
Perhaps a good case in point is the match with my amp and speakers. Technically speaking, my speakers are poster-child "SS-amp" friendly speakers because they have rough impedance and negative phase angle functions. Yet my ARC amp manages to muscle its way through the tough spots with a modicum of aplomb.
I am somewhat dubious that a true Power Paradigm amp having a "high'ish" output impedance would do as good a job. Not because of design, build or sonic deficiencies. But just because of the "high'ish" output impedance. At the very minimum, all other factors being equal, there will be a tipping point where acoustic coloration will outweigh reduced NF induced distortion (e.g., TIM and odd-ordered harmonics).
I don't know how most Power Paradigm amps address power supply issues. I suspect that access to lots of joules can only be a good thing when the amp is being tasked to deliver current when called upon.
This post is just a bunch of guesses. So please don't come down hard on poor little me. Perhaps Ralph who is in the business can speak to the bona fides of my surmises.
Cheers,