here is some perspective 40 years professional experience
speakers determine the overall level of what you can acchieve
the electronics and source will derive what the speakers are capable of
great speakers can not compensate for difficiencies elsewhere
long story short the electronics preserve the integrity of the signal the better you feed the speakers the better the sound from those loudspeakers
All you said is perfectly right...
But it lack the essential: no speaker beat their room...
For the speaker to work at his potential peak qualitative level the room must be not only treated in a classical sense but mechanically controlled to serve the needs of the speakers acoustically and to serve also the listener psycho-acoustically ( Schroeder frequency for example must be adressed and many other problems) ...
Then the room acoustic is the last and more important tool...
It is not my opinion it is Helmholtz teachings...He never sold anything but he was the father of modern acoustic and psycho-acoustic science...
He sell something in fact few people want to buy: science but more than that necessary listening experiments very costly in time more than in money though...But time is more precious than money, it is a too higher price to pay for most alas!
But the truth is there...
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