After playing with the Schiit Modi Multibit DAC I have decided to send it back. I don't have anything negative to say about it, but discovered that it sounds indistinguishable from the tube output on my Maverick TubeMagic D2 DAC so it simply doesn't make any sense to spend more money for the same sound.
Prior to the recent tube upgrade on my Pathos amplifier, I have always preferred the solid state output on the Maverick DAC, so I had not even tried the tube output.
My next move will be a discrete op-amp upgrade this is supposed to benefit both outputs on the Maverick DAC. I discovered the upgrade while reading about potential tube rolling options. This seems to be the biggest improvement that people have found and since it benefits both outputs should be a good value.