It's interesting that in these new "Techtalk" videos, the first point he makes (the conclusion he reaches by end of video #2) is that you need to have access to the on-axis FR of loudspeakers *before* auditioning, since *removing* FR notches can make the sound seem colored (more so than in the other direction).
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That would certainly be a lot easier if he published the on-axis FR of his loudspeakers, and, as I suggested in our conversation above, manufacturers released an agreed-upon set of measurements like CEA 2034.
I'm watching these videos and thinking of the conversation above and....