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

Showing 2 responses by rwwear

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.