We must think Hilde the OP to have put this video here to awake our attention...
He knows very well that the focus on the gear is the main FIRST necessity when we create our own system but it is also our first limitation when we begin...This limitations or characteristic of our gear choice will be compensate by the acoustic correct tuning for them anyway...
Acoustic is the thing that matter more than any gear choice because any relatively good choice of gear will do...
But the ultimate S.Q. will come from acoustic treatment and control not from the gear...
People dont understand that really, it is normal, they NEVER did a room by tuning it to assist the gear by themselves, then they never contemplate the complete transformation of the gear... COMPLETE transformation...Going from a nude room to a room made synergetically to serve the specific gear for our specific ears... At the end the objective result is also a completely subjective one... It is NOT a contradiction it is a PROCESS....