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In Reply to: RE: I've never heard one, do they sound that good? posted by Charles Hansen on October 10, 2010 at 10:43:36
there is no magic formula. I just mentioned one particular topology I liked.
I'm familar with all those circuits you mentioned. The circuit I'm using has added CCS to the input long tailed pair and a complementary CCS to the VA stage. The bias generator is much better than the one in the Hitachi design. It's simple, basic and has good sound, kinda like Nelson's F5 is simple yet sounds soooo good.
Vertical MOSFETs biased high(er) do much better in practice than their reputation would suggest. I agree laterals sound much better. I had some IRF640 and IRF9640s on hand at the time, what can I say. Next build I'll use some 2sk1058/2SJ162 or equiv.
I like the McCormack DNA-1 Deluxe alot (the real McCormack, not the CJ era stuff). I beleive that's jfet/mosfet/bipolar, so there you go, there is no one solution to everyeone's problem.
Never attribute to malice that which can be adequately explained by stupidity.
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BTW, Mosfets don't sound veiled when run in Class A and without feedback. In this respect they are quite tubelike.
There is nothing wrong with negative feedback.
IMO tubes sound veiled, that, among other reasons is why I prefer SS.
I have posted on this.
Never attribute to malice that which can be adequately explained by stupidity.
"IMO tubes sound veiled, that, among other reasons is why I prefer SS."
You obviously haven't heard good tubes, both with output tranny and without output tranny. The clarity of a good tube design makes all the SS I have heard sound, well, wrong.
Go hear a well designed OTL amp and you will realize that all the amps you have had before were very veiled.
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