Hi Davey, this is Fabio from Alma Audio....we just received the new MSB Select that we'll be using at one of our rooms at Newport. Amazing DAC, everybody is invited to listen to it at the store or/and at Newport.
Best
Fabio
The Anat is active below 65hZ and the Sonja was developed as YG managed to extend the DualCoherent crossover to the bass, so it is more coherent than the active bass.
I've not heard the passive Sonja, but people told me it is slightly more coherent top to bottom than the active Anat.