I’ve been looking to replace my Chord Dave DAC for under $25K. I’ve had home auditions of the Rockna Signature, Mola Mola Tambaqui, DCS Bartok, and DCS Rossini APEX. In my system the Dave and Tambaqui are more a like than different. The Bartok(non-APEX) mask details and the Rossini APEX is too bright in my system. In my system, the Rossini has better separation of instruments, wider and slightly deeper soundstage than the aforementioned DACs, but my wife said she had a headache after several songs from the brightness. Next up will probably be a Ideon Ion DAC.
The Rossini produced the most significant differences between all of the DACs that I’ve listened to, but there still isn’t a night and day difference between any of them.