I assume that's a question for the group, and as a member of the audience, let me respond with: I need to think about it. It's actually a very good question, because I find the RS-1 forward (to a fault, most of the time), and the HD600 laid back (again, to a fault, most of the time) (yes, I realize you were asking about the HD650, but I don't have as much experience with those); whereas I find the HP-2 and the L3000 closer to neutral, albeit in entirely different manners (I find the HP-2 neutral in an analytical manner, whereas I find the L3000 neutral in an exciting manner, if that makes any sense). I think the short answer is either one, but not by much, but that's subject to change.