Frank Slootweg said:
*That* is the kind of distortion data I'm referring to, for the
complete frequency and power range.
And then we haven't even touched on crossover distortion
Crossover distortion will clearly be shown in THD specs at low power, and is
just as bad (or worse) for any Vacuum tube amp as solid state using the same
amplification class.
Easier and cheaper to build a decent class A solid state amp of the same (or
more) power as a similar VT one these days if low power distortion is your
prime consideration.
No need to go anywhere near clipping with a modern solid state amp of
course, unlike low power VT amps, since you can get about ten times the
power output for less money.
nor on the issue that the equal weighing of all harmonics in
THD is a matter of debate.
If *ALL* harmonics (individually and in total) are below the threshold of
human hearing, as with any good modern solid state amp, (but not with VT
amps) what does it matter?
Why in hell put up with increased even order distortion, just so it makes
the odd order distortion figures look relatively lower, even when they are
actually far higher is absolute terms for example? Only nutbags think like
that. Plenty of those of course :-(
There are plenty of effects processors to digitally add even order
distortion these days if that is what you prefer to clean audio, no need to
buy a valve amp to do it any more.
Trevor.