What is the cause of Mosfet Mist or Veiling?


I use to know the answer to this question ,but had forgotten!Some amps sound Dark while some seem to have a veiling over the voice info.I have heard this from various amps and was wondering what the cause is?
Other Amps display a very forward signature while other's are more layed back and give a wide and deep soundstage which I favor.
Other's can be Tizzy in the Treble while other's lack Bass!

What are people in the know opinion on these signature's?
nearsota
I prefer bipolar amps but have heard some fine sounding MOSFETs. The main thing that I have read about MOSFETs is that they are not linear and need much regulation to make them sound good.
Hi Rwwear, if you remember reading that mosfets are not linear either you remember wrong or the material you read was wrong. Mosfets tend to have greater linearity then most bipolar devices.

The Gamut is a good example of what can be done with them.
My understanding is the same as Ralph's, that MOSFETs are actually more linear than bipolar transistors.

will
Kudo's to Ralph. How often do you see a manufacturer pat a competing manufacturer / technology on the back with the highest of praise and do it by name in public ? While i know that the Atma's are tube based and the Gamut is SS / Mosfet, I think that this says a lot about Ralph's honesty and "inner peace" : ) Sean
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