Really? I haven't seen that particular graph...
I suppose progress is inevitable. But I can't hear the need for it, through my rev 1. I just listened to the Kieslowski's Blue sountrack from the colors trilogy (classical music) - and although I know that it supposedly should have had more pronounced and extended highs and wider 3D headstage (through a rev 2) I have to confess here that I thought it sounded amazing just as it was through my rev 1.



























