Fictionist
Serving Eargasms....
I'm sure amps could make a difference in much the same way guitar amps do. However the only purpose of a hi-fi amp is to amplify the signal from the source so the speakers as is. I worry constantly about what guitar or bass amp I am going to use but I have never ever in a studio or at home given a shit about what amp powers the speakers. It just has to be the right power.
It's not a hi-fi amps job to change the sound, that would be a shit amp and could only involve something like pointless gain, drive, pre-amps tone or eq. All stuff you don't want.
Again, look at the pro amps? What do they do? They work without blowing up. Do you ever see speaker amps in pro sound mags? No. Just like there are no adverts or features on cables. What could you say? They work or they don't work, they have a pretty cover on them? Make any other claim and you would be laughed out of a job.
Line with gain. What is a pro amp?