With an active xover, one can pick and choose xover points, levels, and even the Q on some models. I think the amp choice is less of an issue when you have such flexibility in the xover. Bob's comment is right on.
Losing an inductor [in a conventional woofer xover] with yards and yards of nondescipt wire is a huge advantage in an active system. But 4, 6 or more amps just isn't in the cards for most of us. Perhaps active monitors are a way to go, but I always wondered about the quality of those amps, and how they are subjected to the vibrations of the spkr cabinet. And most are geared to the pro market, for "accuracy" and not necessarily hi-fi.
Losing an inductor [in a conventional woofer xover] with yards and yards of nondescipt wire is a huge advantage in an active system. But 4, 6 or more amps just isn't in the cards for most of us. Perhaps active monitors are a way to go, but I always wondered about the quality of those amps, and how they are subjected to the vibrations of the spkr cabinet. And most are geared to the pro market, for "accuracy" and not necessarily hi-fi.