P, where a particular speaker causes an amplifier to immediately shut down, that indicates an internal short in that speaker's wiring which wouldn't necessarily include a driver itself being "blown". If you can open up the speaker to see if a speaker lead has come loose that would be helpful. In any case, it wouldn't appear that changes to crossover settings and frequency adjustments, whether done manually or by an automatic system, would have such an effect.
I have taken the speaker apart (metric Allen wrench needed...Darn Canadians
) and there are no loose or shorted connections. I checked resistance on each individual driver and all readings are the same with 0.1 Ohm with that of its counterpart. Is there anything else I can check? If not, can I just send the innards of the speaker back to Axiom of do I have to send the whole thing?
