Keith G wrote:

"Eeyore" wrote
Keith G wrote:
"Eeyore" wrote
Keith G wrote:

Anybody got first hand experience of a truly *serious* SS amp?

Yes. One I designed myself. Mosfet output stage with 24 power devices.

Sounds pretty efficient - beats the **** out of one triode per channel
then?

It'll drive rock and roll rigs too. 600wpc into 4 ohms - around 900 wpc
into 2.

As a monitor amplifier it was just lovely. Totally neutral.

'Was'...??

You don't still have it?

Was as in 'was manufactured'. It was too expensive for its real intended market
of SR, a consequence of not having a properly (intelligently) defined marketing
and sales spec when I designed it. They wanted 'everything' and got it - at a
price.

I do have a couple kicking around that just need tidying up. Trouble is that
it's fan cooled which isn't exactly ideal for home use. No problem in a
studio's machine room of course. The quiesecent dissipation is around 180W !
That's half an amp in those mosfet at idle. Even an AP (Audio Precision test
set) is incapable of seeing any crossover distortion, mosfet output
characteristics work beautifully in such an application. Such distortion as
does exist is low order.

Graham