The reson I didn't go for one of these is that I don't have any loudspeakers (except maybe some JBL control 1) that it would have (IMO) sufficient power to drive. I did wonder if it would manage your DM2s, I think the criticisms you make (lack of low bass, lack of sparkle) are down to this lack of power and not necessarily attributes of the amp itself. Using one per side might just do it though, will be intersting to see the outcome if you decide to go for it.
Current Lash Up:
TEAC VRDS 701T > Sony TAE1000ESD > Krell KSA50S > Troels Gravesen Faital 3WC-15.