Most Axiom speakers are still setup for biamping whether someone wants to call it 'true' or not. The basic definition is to use 2 power sources for each driver section. There is nothing wrong with allowing the internal crossover to function as it was designed. Applying an external crossover would typically need to be set at the designed internal cross value anyway, unless the user wanted to try weird and funky sound tricks outside of the speaker design..
In my limited home tests i've found no difference in sound quality having 2 amps drive a single M60, but biamping may have reasonable application for high power, high SPL situations. My guess is that this will be limited occurrence for 99.999% of home users and even for the remaining portion, may not add much benefit at all.
