I don't think you will agree with me on this, but my primary point is that his opinions on DACs really has nothing to do his assessment of speakers. To me they are barely related, even if they are both about audio. One doesn't really impact the other. You might as well be discussing his taste in food or whether New York or Italian pizza is better(New York Pizza is better, obviously, but don't sleep on connecticut).
When it comes to subjective reviews, they're just that:, subjective. Of the speakers I've overlapped with Amir, for instance, I don't find I agree with him any more than any other subjective reviewer -- even though we've gotten very similar measurements. And I don't mean whether something is good or bad -- I'm in general much more positive than amir -- but whether something is bright or dull, bassy, forward, wimpy, etc.
Of course, things are different once you factor in measurements, that's where the true objectivity comes in. But even then I often disagree with the interpretation of data.
Anyway, I don't mind anyone feeling one way or the other, but I do think it's an interesting to discussion to assess what subjective reviews should be like -- what constitutes a good subjective-only review.
I think the point is that with all Darko's deep listening over weeks, he hears differences between DACs which are demonstrably not there.
Therefore, when listening to speakers, he is likely to be similarly flawed.
I don't trust his ears.