I think you're missing the point, oversimplifying, and on the verge of audiophile trolling.
First I do not know what audiophile trolling is (note that english is not my first language) but I suspect this is not a compliment. And second I don't find your anwser very usefull because it does not explain anything. So if the point of the DSP box is not to correct the signal before the amp sends it to the speakers then tell me what is it? Note that I understand the DSP box is technologically different than an analog equalizer and is achieving everythnig more precisely. But the goal is the same no? (in this case adjustment of the Q which determines the sharpness of the bandwidth and eventually to compensate for the room's acoustics. But I also guess the graphs here are from an anechoic room).
