Don Pearce wrote:

Huh? You can play any am,p quietly; you just turn the volume down. It
is the loud bit that separates the men from the boys.

d

Well, you might worry about things like noise, crossover distortion for
class B and inaccuracies in channel balance at low volumes for a macho amp.
Maybe the ability to play quietly separates the ummmm... nightingales
from seagulls?
There must be a better analogy somewhere.
Roger tThorpe