Thanks hilde for your kind words...
But remember something important also about what i called mechanical equalization... Which is different than the room treatment only...
Here the mechanical TUNING add something no room treatment is able to do alone, it bent the room to what the system is asking for, for your specific ears...
It is this ignorance about the complexities of acoustic that made people FOCUS on upgrade and piece of gear mainly to improve their experience...
Alas! Like i said the greatest solution is a dedicated room not a new amplifier if the amplifier you already own is basically good...
Then first you choose your flavored prefered system in a treated room...
Second you bent the room for it with mechanical equalization and guess what ? the S.Q. is over the roof for your ears with this system...
there is difference between any system but not so powerful to compared with an acoustic settings designed for his optimal working...
Here we speak of gear plenty of people answer...
In my new thread about acoustic almost no answer ...
Why?
Because acoustic is complex matter and it is more easy to buy gear....
You are right about some gear being not very good to begin with...
But most quality gear are basically good.... It is a taste question more than objective quality....
Then kNowing that the gear is secondary to acoustiic...