"I don't care whether it is real or psycho-acoustic - all I know is that I am really starting to enjoy these speakers."

I've made this point before but it always seems to get lost in the shouting back and forth that goes on when the subject of "break-in" comes up.

Who cares WHY it sounds different? Whether it's the actual speaker producing a different sound, or whether it's your brain adapting to the sound of a new speaker. Bottom line is - it sounds differnt to your ears. Oye...relax people!