[sdiy] simple class A bipolar power amps?

[anthony]

I suppose I could be overstating it a little bit, but I have never seen a 
datasheet for a MOSFET claiming its intended use to be for high-end audio as 
do the datasheets for both the 2SC3182 & 2SA1264.

I suppose I haven't sat down and compared several bipolar and MOSFET amps, 
but the Alpine amp I had was better than both of the MOSFET amps that I've 
had. I always understood that the main reason amp designers go for MOSFETs 
is that they don't have the thermal runaway problems that bipolar 
transistors do.

I seem to recal readign somewhere that a true class A amp would have less 
problems with thermal runaway than a typical class B design, but that could 
be nonsense.


> <snip>
>
> And the performance of these
>> transistors is
>> astronomically better than anything you could get
>> from MOSFETs.
>
>
> ???
>
> why would you say that ???
>
> (serious / curious, no wars intended :^)
>
> I don't see that bipolar transistors are inherently
> better for audio than mosfet. They have different
> circuits and different drive requirements, but the
> overall performance is more 'what you do with them'
> imho...
>
> H^) harry
>
>
>