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Class A Solid State Sound

Would someone kindly describe the differences in class A sound of Pass XA.8 series, Accuphase A-70/75 series, and Gryphon class A amplifiers. Does much or any of the differences relate to mosfet (Pass and Accuphase) or bipolar (Gryphon)  output devices?  Thank you!

audiobrian
georgehifi's avatar
georgehifi
10,312 posts
 
In term of drive, everything else being equal, BJT usually has more output current output so it should be able to drive better vs. FET. Therefore BJT sound tends to have more dynamic compared to FET.  
https://i.pinimg.com/originals/06/dc/05/06dc051c6d6f1fe3645a7ded30f559c7.png

Cheers George
Post removed 
georgehifi's avatar
georgehifi
10,312 posts
 
same same, the bi-polar will do more current than mosfet, end of story.


My ME amp, 24 bi-polars (bjt's) per channel, (Nelson Parallel 24 bjt's per channel with one of the Thresholds.)
 
Lets see a Mosfet do 100amps continuous with 12 (six pairs) per side

https://ibb.co/W0HJQ4f

https://ibb.co/NZKhS4w


mijostyn's avatar
mijostyn
8,570 posts
 
Guys, it really does not matter. It all depends how an amp was designed and uses these output devices not the actual characteristics of an individual device. 
georgehifi's avatar
georgehifi
10,312 posts
 
Sorry, wrong!
If you really wanted to be a peacemaker, you should have just posted your first sentence and left it at that.


Cheers George
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