Tube vs. Solid State Amplifiers


I found this really good link regarding the differences:

https://www.caryaudio.com/2018/06/04/vacuum-tube-vs-solid-state/

I've heard some (who are much more knowledgeable than me) say that a tube amp and solid state amp which are rated at the same output power in practice will not drive a speaker to the same level, that in selecting amplifier power levels, you would get similar results from lower powered tube amps.

I thought it would be interesting to see what those who know much more about this subject would contribute to this discussion.
ejr1953
I like solid state class A combined with a tubed phono preamp...to me this gives me the best of both worlds.
@ebm  I'm with you on this one. This topic has been covered to death.

Perhaps a thread on chocolate vs. vanilla could break some new ground.
Post removed 
@earlflynn  Look at the M40.1's impedance.
https://www.stereophile.com/content/harbeth-m401-loudspeaker-measurements
It may be specc'd at 86dB, but the impedance averaged over the whole frequency range is actually well over 8 ohms.