I most certainly would not call the bass of the 9200 strong, by any measure. Directly comparing to the HD800, it only has marginally more bass, but not notably. Not in the way that a fostex TH600, 6XX or 900 has. What you describe is similar to what I myself tend to look for, and the 9200 fits the same role as HD800 or Beyer T1 did for me: very neutral, clear, controlled and detailed, albeit closed, at the expense of some sound staging.
The D9200 is very much a jack of all trades, master of none, to me. It sounds good and clear with everything; but it won't punch with the same heft/volume that the 7000 or fostex will, with electronic music, and wont have the same expansive clarity that the HD800 does with classical. But it also won't miss a beat, you'll hear everything, and it does have decent punch, due to its control, just not the quantity of bass that the fostex based models like the D7000 had.
So generally I'd say if you're looking for a closed back headphone which is 'reference quality' this is probably the best on the market at the moment, with the only notable competitors being the Focal (stupendously pricey) and the Ether C (a bit soft/less dynamic sounding, and hard to drive).