Any FIIO portable dac should do. I find my Q1 a bit smoother (less detailed) using the line out to Magni 2 than the Mimby and a DYI AK4490EQ, hence less harsh. I think a warmer amp can do a better job taming the highs on high volume levels.
yeah the amp I just got is warmer than the output on the Aune, and bass for dayyyyss