2. amps-preamps
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Whats the difference between MOSFET & Class A, AB

I was wondering what the general difference was in MOSFET amps as compared to Class A or Class AB amps.

For the last few years I have been running a Classe CA 300 amp. A couple weeks ago I had a fuse blow on the Classe and it also burnt out a resistor. Knowing the Classe was going to be in the shop I bought a old CJ Motif MS-100 amp.

Now after a day or two of listening I'm thinking this old Motif betters atleast too my ears the Classe so it got me wondering.

Cheers Gary
deanna4242
6550c
393 posts
 
^^^^^ Until tubes came along. lololo
rleff
1,065 posts
 
Jaybo pretty bold statement;ever listen to tubes????
mechans
3,048 posts
 
A MOSFET is an acronym for an amplification device not the type of circuit. BTW it is metal–oxide–semiconductor field-effect transistor. There are other FETs but I too like the old thermionic tubes.
onemug
784 posts
 
Read some of Nelson Pass's articles on his website. He's a big fan of MOSFETs running in class A mode and I'm a big fan of his ss designs. Is this some kind of trickle down admiration thing? :-).

FWIW, I'm a tube amp lover, especially single ended ones.
fhet
9 posts
 
Ok guys just my opinion, there is no a clear winner and neither a general rule but only personal preferences.
If you only want be beguiled, maybe there is no alternative to tube and single ended amplifiers in particular.
Personally I think the best thing to do is to have at least two audio systems in which experiments tubes and solid states (among which mosfets) and enjoy the music in function of your daily mood.
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