Hi Phil,
WE'll need crossovers, otherwise the drivers would get damaged. Crossovers would have phase issues. Could we hear the phase issues? I doubt it.
I bought the line too that "phase inconsistencies are bad" and then I heard crossovers and for the life of me could not hear the "phase". Wayne & I had an interesting talk yesterday too where he said the same thing.
BTW, A bass reflex box introduces phase inconsistencies as well. You will need a separate amp for each driver only for active crossovers, passive ones use the same amp.
thanx
-akhilesh