My response in the comments just now: "idk if a 20+ year veteran mastering engineer is the best option to critique DACs lol. You can barely hear your wife and kids from blown out hearing. This is like an old hooker telling two virgins what will or won't be enjoyable on the 1st night of their honeymoon lol."
DAC 'Scam' Vid
https://www.youtube.com/watch?v=7Sg1nYLmLCw
The TL:DW is that any well made Dac should not be more than $200 and anything above that doesn't sound any better since they all use similar cheap chips to do the D/A conversion. Anything above $200 for a DAC is basically snake oil and theres no improvement in sonics.
Appreciate your insights.