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Old March 2nd 06, 07:55 PM posted to uk.rec.audio
Serge Auckland
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Posts: 509
Default SET in my ways...


"Keith G" wrote in message
...

Here's an interesting and well-written article that should have the
AntiSEpTics foaming at one or more of their body orifices:

http://www.stereophile.com/tubepoweramps/196wavelength/


This bit is particularly interesting:
"Then there's the interesting issue of distortion products. SETs include
even- and odd-order distortion products in their outputs (as in nature, so
to speak), while push-pull circuits cancel out even-order distortion by
design, leaving only the less musical odd-order products intact. Now
look...there's something to this. It's suggested that the sound of
single-ended triodes has much to do with their delivery-intact-of the full
spectrum of distortion products. "More distortion is better?" I hear you
ask. Well, it's less humorous than it sounds. Might "unnatural"
proportions of odd-order distortion account for part of the sound of
push-pull? Something to think about."

... and should be read by those here who are continuing to confuse the
radically different terms 'realistic' and 'accurate'..

Just my mouth was foaming......

Even and odd distortion products in nature? What's he talking about? Play a
violin in the open air, what distortion does the air create that the
microphone doesn't pick up? Yes, I know air isn't linear at very high
levels, you can compress air as much as you like, but you can't rarefy more
than one atmosphere, but by the time you get to measurable let alone audible
distortion levels, you would be dead! However, whatever distortion levels
exist in the air, the microphone would pick up. So, what's he talking about?

As to the silver wire and other exotic components, come off it! If you like
the amounts of distortions coming off a SET fine, but don't pretend it's
accurate. (or realistic)

S.



S.