On Tue, 11 Jan 2005 15:07:26 +0200, "Iain M Churches"
wrote:


"Stewart Pinkerton" wrote in message
.. .

The KISS amp is supposed to be *simple*, not necessarily the best
possible SET amp. Besides, neither I nor anyone else except possibly
Andre has listened to this amp, since he hasn't yet published the
circuit.

Anyone with more than a sniping acquaintance with Andre, would know
that he has been designing and building amplifiers for a very long time.
KISS is by no means his first. I believe that he has had some designs
published, so many have had a chance to build and listen. He has a
very good reputation both as an amp designer and a journalist/music
reviewer.

Irrelevant, since your remark was directed at the KISS, not earlier
designs.

You promised to build an SS amp, to the same performance specification.
Many of those on RAT are eagerly awaiting your design, so that we may build
both your and Andre's amplifier. Please do not disappoint us.

Let us be clear, before revisionism rules - at no time did I *promise*
any such thing. As it happens, I do have a paper design which follows
the KISASS principles of minimum active components (four transistors,
to be precise), no iron apart from the mains transformer, no loop
feedback, and a distortion content dominated by the central
single-ended gain stage. It does use emitter-follower impedance
converters at output and input, but I consider this to be an
appropriate use of SS technology. KISASS is not supposed to be a
*copy* of KISS, it simply follows the same basic principles, applied
to somewhat different active devices.

Do try to keep up, or people may feel that you are not well
informed.

Looking back over some archive posts in this NG, I see that most
threads turn into your "all good SS amps sound the same"
Not much to keep up with, is there? :-))

The truth is often simple...................

Don't believe everything you're told by acolytes of the evil god SET!
If they were 'well informed', they'd be using push-pull amps........

I am sure they are. Many people have more than one amplifier or
pair of speakers. But this still does not distract from the fact that if
one wants to listen to small ensemble music, then SET is quite
remarkable. I add here that I have no axe to grind, I do not own
an SET amp:-)

'Remarkable' it may be, but it is *only* accurate below a watt or two,
demanding extremely sensitive speakers even for chamber music played
at realistic levels. A small class A SS amp such as the classic 1969
Linsley Hood would do a better job for vastly less money.
--

Stewart Pinkerton | Music is Art - Audio is Engineering