the thing about the power amp is that it must interface with and control the speaker, besides delivering adequate current, etc. so it never clips
other than that I think atmasphere put it well
for the record, I have a tube pre-amp - the ARC LS25 MkII (which replaces a Sonic Frontiers Line One I've had for ~20 years) and my Sunfire amp is SS which I may replace for another SS most likely - have had it for ~20 years and before that an Adcom
they drive Maggies (for the last 20 years; before that Vandies)
I am highly likely to upgrade the speakers and source material before changing the electronics...
other than that I think atmasphere put it well
for the record, I have a tube pre-amp - the ARC LS25 MkII (which replaces a Sonic Frontiers Line One I've had for ~20 years) and my Sunfire amp is SS which I may replace for another SS most likely - have had it for ~20 years and before that an Adcom
they drive Maggies (for the last 20 years; before that Vandies)
I am highly likely to upgrade the speakers and source material before changing the electronics...