Ralph, thanks for the explanation, which makes sense to me. Certainly, at least, to the extent of being a general tendency, that usually/more often than not differentiates tube and solid state designs.
I think that some of those who have responded may be losing sight of the fact that distortion does not occur when there is no signal to be distorted. In the case of a design that utilizes relatively large amounts of feedback, when Ralph refers to "the noise floor becoming that of harmonic and inharmonic low level distortions," that "noise floor" will not be heard when no signal is present, even if one's ear is placed against the speaker. Yet when signal is present, Ralph's point that it can mask low level detail to a greater degree than a small amount of hiss can mask low level detail (even if the hiss is great enough to be audible) certainly seems to me to be plausible.
Best regards,
-- Al
I think that some of those who have responded may be losing sight of the fact that distortion does not occur when there is no signal to be distorted. In the case of a design that utilizes relatively large amounts of feedback, when Ralph refers to "the noise floor becoming that of harmonic and inharmonic low level distortions," that "noise floor" will not be heard when no signal is present, even if one's ear is placed against the speaker. Yet when signal is present, Ralph's point that it can mask low level detail to a greater degree than a small amount of hiss can mask low level detail (even if the hiss is great enough to be audible) certainly seems to me to be plausible.
Best regards,
-- Al