You can make them even better by changing the OPamps to a combination which takes away a little of the "veil" that comes with the stock OPamps in the D10. I have forgotten which was the best - but you can find it in the "Official Grado SR325 owners club" thread.
Just found it - if you get the SR325 and the D10 then the best sounding OPamp combi was 8656 on the LR socket, and 8532 in the two buffer sockets. You should notice a difference in treble and overall clarity.
Dont get me wrong - skylab is also very big on the D10 in the extensive review he did on the Topaz. I just know that I'll always be asking myself what all the fuss is about with crossfeed if I dont try one of Jan's amps at some stage.