Anybody tried EMM DCC2 into preamp?

I use an Esoteric DV-50 as CDP. I love the Atma-Sphere MP-1/MA 2.2 (mod) combination/synergy and would hate to give up the MP-1, but want the best possible digital source, which is clearly the EMM DCC2 (+ transport).
I know that this unit functions as a preamp too and could make my MP-1 redundant. Has anyone used the DCC2 with a high quality preamp, eg Atma-Sphere, Aesthetix, etc instead of just straight into the amp, which is obviously more logical? Is there any chance that the synergy of the Atma-Sphere preamp/amp will even improve the sound of the DCC2 (+ EMM transport)? Anybody done that yet?