"Bret Ludwig" wrote in message
ups.com
Ted Edwards wrote:
Tim Williams wrote:
Ya, because they have that fun little exponential Vbe
curve. Beta is to transistors what Gm is to tubes and
FETs, and you know it...

I've seen your posts here and elsewhere. They all seem
to be of similar quality. I have been designing,
building and _listening to_ audio amplifiers for about
60 years and the plain fact is that tube amps just don't
do a good job especially at very low or very high
frequencies. Almost acceptable THD is possible at 1 KHz
maybe even up to 5 or 10 but then maybe you can't hear
anything above that.

Bull**** on stilts. McIntosh,

Prove it:

http://www.mcintoshlabs.com/data/com...omp3.04web.pdf

MC275, their only tubed amp - rated THD = 0.5% out of the running

ARC,

http://www.audioresearch.com/300.2.html

1% THD

http://www.audioresearch.com/VM220.html
http://www.audioresearch.com/VS110.html
http://www.audioresearch.com/vt100new.html

0.5% THD

http://www.audioresearch.com/VS55.html
http://www.audioresearch.com/VSi55.html

1% THD


Julie Labs

No evidence on web

and many
others have made tube amps with THD and intermod specs
comparable to any popular solid state and bandwidth up to
at least 25 or 30 kHz, surely you can't hear above that.

Only contradictory evidence can be found.