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In Reply to: RE: The answer is no posted by Tre' on September 4, 2017 at 07:45:30:
I understand your faith in being able to
calculate anything you want.
I don't tweak, period. I listen to the best
recordings available on the best equipment available.
I have owned movie theatres, and have designed and built
many a Stadium Theatre. Most theatres have bad sound--
but not very bad-- if the owners keep up with maintenance.
I have, over the years, enjoyed hearing and measuring
and observing in theatres, what it takes to totally
involve people in the presentation, and take the sound
system out of the equation-- make it so good that no one
notices it-- just what is happening.
My standard for HOME playback is the sound that is
factory encoded on L.P.'s, CD's, and on-line
Hi-Resolution downloads.
This is compared to studio master recordings, and
also to the systems that competitors have at audio
shows, and to people's own home systems.
I ask an amplifier to play back any and all of
these sources with verbatim accuracy-- at the point
that counts-- the speaker or headphone interface to
the listener..
I have found over the years, several solid state
amplifiers that will do this very well.
In order to have vacuum tubes do the same thing
well, the tube amp had to be condensed into a form
that would do this simply because all the other
tube amps I have applied, or heard-- have fallen
woefully short.
I haven't mentioned this lately on a forum, so
I'll just repeat it here: I NEVER build anything
unless I HAVE TO. I MUCH prefer to BUY it.
In the case of vacuum tube amplifiers, the
existing technology and construction methods
were absolutely hopeless. So, I FIXED that
problem. And, FIXED it is!
It's too bad that it's so controversial with you.
Actually, all it is is energy conservation applied
at every level, and superior layout and construction
methods, coupled with the use of really good parts.
Circuit operating values are super conservative
because I don't like the sound of stressed vacuum
tubes that every other tube amp I ever heard displays,
if played on large radiating area, point-source,
speakers that are over 100db/watt efficiency. The
GOOD amps-- including a few over 200 watt solid state
models, will play well on such speakers.
Nearly all tube amps that have been, or are being
built fall short in many ways.
If you're a modifier, you can rescue some older tube
amps by lowering voltages and currents, using better
parts, mounting iron on brass standoffs, and re-wiring
the whole thing..
If you do that, you're still coming up a bit short--
but much better--, so why not just start over and
design something that is sure to work?
It does!
-Dennis-
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- RE: The answer is no - tube wrangler 21:31:29 09/04/17 (0)
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