@facten :
Thanks for your response. I guess my answer would be that I am hoping to hear a bit more detail and spaciousness. I have seen comments in the past where folks have said their DAC allowed them to hear detail they had not heard before - "it sounded as if the artist was in the room". I have not gotten that with my current/past DACs. I realize you must take the whole system into consideration, but thought I would start by exploring a DAC change.
To everyone - thanks for all the feedback thus far!