Where was the best reproduced sound you ever heard?

MBL room in NYC LONG time ago. I liked EVERYTHING there except PRICE.

At the same time, I was fascinated on quality of such equipment that is probably worth owning!

My last dedicated acoustic room homemade with 100 Helmholtz resonators tuned and others complementary devices.

I then learned why and how acoustics concepts and principles rules over upgrades of gear so impactful for sure a best design could be...

Most people cannot imagine this, it must be experienced... 😊

The important point is not my subjective opinion about my room , the important point is my objective conclusion : Acoustics knowledge matter more than most upgrades, save extreme one as going from cheap low cost speakers to Revel Salon...

Reading most audio threads we are conditioned toward the opposite : gear and price tags  matter the most...

Mbl 111e at United Home Audio in Annapolis Junction MD.   Still in a class all its own. Same setup at hifi shows: meh.