It's taken me 12 months to truly appreciate the rev.2. I was quite vocal in the past about my preference for the HD650 over the LCD-2 but I no longer own the Senn and I now can't bring myself to part with the Audez'e. That said, I don't add my voice to the chorus that the LCD-2 is the natural "upgrade" from the HD650. The LCD-2 could't make me part with the HD650. It took the HD800 to do that.