I bought LCD2rev2 used and find them too dark for me. I keep telling myself that maybe I should adapt to them for a while or maybe the treble will increase after quite a while. Keep listening to them for a week without going back to HE500. In the end of the week I listened to HE500 and I feel Damn this is the right one for me.
I listened to them through EF5, Musical Fidelity speaker amp and straight from MDAC. Same results.
It's a wonder how each of us preferred something differently.
So far, our impression/preference seem to be exactly the same when it comes to HE500.