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In Reply to: RE: I was thinking the same thing. Or just use very linear triodes to start with. nt posted by Tre' on June 21, 2024 at 16:19:02
That might not be sufficient to eliminate the need for feedback. Distortion isn't the only characteristic that affects sound quality. System damping must also be considered. Well-damped speakers like horns can provide a beautiful interface for a triode. But other types typically require an amplifier with a significant damping factor of its own. There's nothing wrong with using a moderate amount of feedback to help improve system performance in this regard.
Follow Ups:
TK-
Agree and also don't have a problem with feedback in general.
It's more a "math is hard I think I'll just do this the easy way" for me.
In fairness - "elinear" takes some of the challenge out vs tweaking a global feedback loop.
If this global loop is 'needed'. As in not available locally, circuit-wise. Not sure that is a restriction for builders.
That said, I have a relatively high output Z power stage underway...not at all sure it will be acceptable for the speakers I intend to use. I have a feeling I will wish to use a wee bit to reduce output Z. Probably best to leave room for that modification before I start cutting.
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
I use SS for drivers that require high damping.
Tre'
Have Fun and Enjoy the Music
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