A video interview with the engineer in charge of the MU2's analog section:
https://www.youtube.com/watch?v=y2H32t-du14&t=93s
And for those who might be interested, this is the Part 1 interview with Eelco Grimm about the digital section of the MU2:
Grimm MU1/Mola Mola Tambaqui combo vs. Grimm MU2
Here is a great video discussing the very popular question of which is better: the Grimm MU1 streamer with the Mola Mola Tambaqui DAC or the Grimm MU2 with built-in DAC?