Differences between DACs are quite subtle, but yet we talk about them in large terms.
To me, the mutlibit vs DS differences are (in favor of the multibit), less grain in the treble (for example, cymbals are slightly more life-like), a little more bass slam, the layering is a bit more complex. But these differences are subtle and you really have to train your ears to hear them. And quickly A/B'ing isn't the way to hear the differences. Listen to one DAC for a long period and then switch and listen to the other DAC for a long period.