James G. Sack (jim) wrote:
I'm wondering what makes tubes desirable for high quality audio amps? Is
there some sort of non-linearity or frequency response issue in
solid-state?? Or is it maybe just another power-handling example.
Brain conditioning. It's called psychoacoustics.
The "tubes are better than digital" adherents are starting to thin.
Basically the "rock" mastering engineers needed to get to the same point
that the "classical" mastering engineers had been at for years.
Now, in terms of things like individual guitar amplifiers, it has to do
with the way tubes overload. Tubes tend to overload gradually and have
decay time as they recover. It tends to create noise bursts with an
envelope that spreads the energy over a band of frequencies rather than
keeping them tightly concentrated. Performers like to think it's
"edgy". Digital, on the other hand, tends to overload and clip
drastically and has no recovery transient. It creates the same kind of
distortions but with *very* concentrated energy spikes. Performers tend
to call it "harsh".
-a
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