[Scott[_6_]]

On Mar 14, 7:53=A0pm, Doug McDonald wrote:
On 3/14/2012 4:20 PM, Scott wrote:

On Mar 14, 12:23 pm, Doug =A0wrote:
All properly designed power amplifiers must sound absolutely the
same ... otherwise by definition they are either defective or
the speaker load is too low impedance for them. There are first
rate speakers out there whose impedance drops too low for
some otherwise excellent and perfect amplifiers.

Doug McDonald

Where do you get this defenition? Who makes these rules? A properly
designed amplifier is an amplifier that works reliably as it was
designed to work. There is nothing "defective" about amplifiers that
add euphonic colorations and they certainly do not all sound the same.

Ah! It's simple ... the definition of amplifier. An amplifier
amplifies the input signal. That is, it makes it larger, period.

I didn't ask you what the defentiion f an amplifier is. I asked you
where you got it? Who makes the rules? It was a rhetoritcal question.
Ironically no amplifier actually does what you say an amplifier does
so by your own defenition there are no amplifiers in this world. The
bottom line is these semantic arguments are exercises in logical
fallacies.

If it wants to do other thing, of course, it most certainly can. There's
nothing wrong with adding "features" to an amplifier if someone wishes,
so long as they are properly speced and labeled.

Devices to do this, however, properly have other names.
Such names are "tone controls" (which that NAD actually has!),
or "equalizers" or "low pass or high pass filters" or "shelving filters"
or in other cases "nonlinear stages" (i.e. single ended triodes with no f=
eedback).

Doug McDonald

Sorry but I don't accept your rules on amplifiers. They may work for
you but they are not universal. I am quite happy with the euphonic
colorations I get from my amplifier (which is an amplifier whether
you like it or not). And I assure you that you can't duplicate those
euphonic colorations with tone controls or any other stock features
found on other amplifiers. You are free to like what you like but not
free to rewrite defenitions to suit your perosnal tastes and
prejudices.