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
@Mitch2, with traditional speakers as impedance drops so does sensitivity. The BHK mono's  950 Watts into 2 Ohms is the equivalent to what a 237.5 Watt into 8 ohms amp that could truly double down could provide into 2 Ohms. Even after what seems like PS Audio's underrating of their 8 Ohm power rating , where did the other 250 Watts go?
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Getting back to the OP's original post. Class A circuits ( and we are specifically talking about amplifier output stages here ), just sound smoother, more homogenized, less artificial, more involving, with every attribute of recorded music reproduction, keeping one in his / her listening seat, longer. Granted, there are still audible differences, between designers and manufacturers products, but, Class A is still, imo, superior, at this particular time, in SQ. 
More false and irrelevant information. Keep trying...
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I thought you had some knowledge Kosst, but you don't your clearly just a Pass Kit diy'er, that suddenly thinks he has some.

Seeing your always spruiking good Nelson Passes name.  
I challenge you to have Nelson come onto this thread and state that complimentary pairs of  P and N channel fets, can put out more current into low impedance loads than the same amount of complementary pairs but in NPN and PNP Bi-Polar (BJT). 
Lets not forget the difference feedback can make. 

IMHO it is nearly impossible to talk purely about the output stage class in isolation of the feedback method, if any.


Also, with so many high bias AB amps, I venture to say you listen to them mostly in their A range anyway.


3 Amps I think you should listen to, are Luxman, Ayre and Pass. I can't see you loving all of them at once. Sorry, no experience with Accuphase, however if you are the US distributor and wish to provide me with a review sample, message me. :)


Best,
E