Active speakers suffer a few marketing disadvantages. To name a few: expensive, difficult resell, don't allow playing with amps.
The advantages are obvious: 1) no need for mammoth amplification that's overengineered to reproduce dc to daylight; each amp can drive a specific frequency range 2) the crossover before the amp allows maximum efficiency and the amp has an easier load 3) cross-over behind the amp means that there are practically no shifts in cross-over frequencies b/ween drivers (passive x-overs shift with increasing power)... etc
Bi-amping/ multi-amping has been discussed a lot. That's the same principle as an "active speaker"
The advantages are obvious: 1) no need for mammoth amplification that's overengineered to reproduce dc to daylight; each amp can drive a specific frequency range 2) the crossover before the amp allows maximum efficiency and the amp has an easier load 3) cross-over behind the amp means that there are practically no shifts in cross-over frequencies b/ween drivers (passive x-overs shift with increasing power)... etc
Bi-amping/ multi-amping has been discussed a lot. That's the same principle as an "active speaker"