I am not an engineer at all...
Once this is said i am flabbergasted by the fact that so much people can think that a system had a sound of its own, out of any room acoustic content ...Out of any ears measurements...
Room controls can de done mechanically ( the hard way with specifically located tuned resonators ) or with DSP ...
In the two cases anyway it is mandatory to have a minimally optimized ratio between absorption/reflections and diffusion ...
Then how in the world can we assess the real potential of a system in acoustically anonymus room as like in show or many living room ?
it is audiophile superstition to forget acoustics and psycho-acoustics which is the more half important part of the complete job...
Anybody can purchase relatively good synergetical gear pieces ..Anybody with the money....
We must be proud of our room not just of our gear pieces ... Creativity for us who do not design the gear pieces is there in acoustics creativity ...
And anyway acoustics is a very deep field matter in us human ... In a way gear design cannot be ...