I would do it and take my chances. The O2 may not be the best amp but It will probably be fine and you can always get a better amp later. I have owned the HD650 and I have listened to the LCD2. I have owned the HD650 and they are totally different. I did not think much of the HD650 because I thought they sounded really rolled off at the high end.
11/29/14 at 4:16pm