Umm no, I absolutely said no such thing. Perhaps you misinterpreted, but I did not intend to make any generalization at all, and I have never made any comment at all about hardware I haven't heard personally. Perhaps this re-wording will make it clearer:
In fact I did a direct head-to-head comparison of multiple headamps and speaker amps, and found the headamps tested (specifically the Mjolnir and Burson Soloist/Conducter) to be no more resolving than the better speaker amps tested.
In fact, I did direct, side-by-side comparisons of all of the amps I wrote about, including those specifically mentioned above. With my cans, my ears, my brain. And wrote up the fully caveated results in the Speaker Amps thread. The equipment and music used for every comparison I've done are in the threads containing the comparisons.
Hope that clears things up.
But what DAC?