"Arny Krueger" wrote in message
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"Robert Morein" wrote in message

"Sockpuppet Yustabe" wrote in message
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"Arny Krueger" wrote in message
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Makes guys like Nousaine and I, who try to adjust our equalizers to
get better sound quality look pretty foolish, eh?


Clueless, as usual.

Quite clueless.
I have a bunch of parametric equalizers, but the effects which can be
obtained are not similar to the signatures of amplifiers.

Yes, the effects of adjustements to equalizers can be quite clearly
audible
which is clearly different from what you get when you play musical chairs
with reasonably good amplifiers.

The effects of adustment to equalizers can be quite audible.
My XL-280 and Acoustat TNT-200 sound as markedly different as many speakers.
This does not appear to be a property of the particular sample, since I have
three TNT-200 amps, and something like six XL-280's, and I've never noticed
a difference between samples of the same model.
The Parasound HCA-2200ii is similar to the TNT-200, but clearly preferable
with my Acoustat 2+2's.
My XL-600 amps, of which I have two, do not sound distinguishably different
from my XL-280's.
My Hafler P3000 is also distinguisable from the others, but not markedly so.


These amplifiers are distinguished by membership in three groups of circuit
topology:
1. zero output gain, source-follower MOSFET: XL-280, XL-600
2. grounded gate, three-gain stage MOSFET, trademarked Transnova topology:
TNT-200, TNT-120, P3000
3. four gain stage, mosfet driver, bipolar output: HCA-2200ii

The most marked difference in sound signature is between group one and the
other groups.

I advise anyone with the chance to sample multiple amplifiers to do so. In
my case, I have a dear friend who made this possible before I accumulated my
collection of amplifiers. I had the opportunity to listen to quite a few
others, before I selected these for permanent accumulation.