"Robert Morein" wrote in message

"Arny Krueger" wrote in message
. ..
"Sander deWaal" wrote in message

"Robert Morein" said:


Both amplifiers had distinct signatures that were plain
as day, and distinguishable independent of volume
level. This was apparent to both of us.
I wonder what an ABXer would say, if he were present,
sans test gear.

Would he deny the experience? Would he put his head in
the sand?


It would be interesting to find out why the 2 amps
sounded different.

Been there, done that.

Something in the Fr, the distortion,
the output impedance, or something else entirely?

Something that can be measured, but not necessarily one
of the conventional metrics.

Output impedance variations with frequency always lead
to frequency response variations.

I thought your position is that damping factor is a
negligible factor in most amplifiers, particularly modern
solid state ones. Please explain.

Since when was this discussion limted to good, modern solid
state amplfiers?

Frequency response variations change the spectral
balance of the music. True.

Nonlinear distortion also changes the spectral balance
of the music. True. Never once saw two amps that sounded
different that didn't also measure vastly different, if
I was able to get some measurements made.

It seems as if you want to join the camp entitled "many
amplifiers sound different, even if they are, nominally,
properly operating."

Since when was this discussion limted to good, modern solid
state amplfiers?

I don't have a problem with that.

Too bad you can't transcend your narrow viewpoint, Robert.