Hi Curtis
I think you're right, but I look at it a bit differently. I love the M3s, but what separates the M3, an excellent speaker from a great audiophile speaker is not the 100 Hz hump, but the about 4db drop off at about 120 Hz and then the further 5-6 db drop off at about 1500 Hz and the about 7 db drop off at 7500 Hz. The slight weakness in the lower mid bass, caused by the 120 Hz weakness and the weakness at the 1500 Hz harmonic is noticeable. The 7500 Hz dip shows up as the weakness in the M3s highs relative to the M22.
I personally think the M3 could be Axiom's greatest giant killer if they could correct those audible weaknesses. When I say weaknesses, I'm comparing the $275 M3 to the $4,000 Thiel Audio CS2.4, or a JM Lab Mini Utopia.
As to the utility of the frequency response graphs, here's the plot for the Reference 3a de Capo MM
How come a speaker with such a weird looking plot sounds so darn good?
Just for giggles, here's the plot for the M3Ti. This is a superb frequency response curve - but interestingly, the dips on the graph correspond to the weaknesses you can hear in the M3.
