>>I vote that Axiom releases a mod to remove the so-called brick-wall filter below 15Hz provided it doesn't adversely affect the specifications at higher frequencies.

I think they would have to recalculate all of the speaker parameters and limiting logic to consider cone flapping from those lower frequencies. Not pretty.

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8