Unfortunately there are some sinister reasons that active technology is not being used within the speaker industry. There are many conspiracies witthin the speaker industry and this is just one. There has been a collusion by the amplifier manufacturers and the speakers companies to ensure that the hifi marketplace is not monopolized by the speaker industry, if active technology was the only game in town. It was subsequently agreed that the amplifier companies would continue to market their mega expensive $50K amplifiers to the marketplace while the speaker companies continued to produce speakers using inferior passive technology. This would ensure that both sides would profit.
Moreover the speaker companies had another secret motive. They did not want the public to interfere with the way their crossovers had been tuned. Crossover tuning is and has been a black art for a long time. No speaker company will disclose their transfer functions the same way food companies will not reveal their secret ingredients. The crossover plays a big role in defining the sound quality that a speaker produces and without it, there would be no way for the public to difefrentitate between different speakers. If, God forbid, the power to adjust the crossover got into the hands of the audiophile community, it would be game over for the speaker companies if audiophiles found that most speakers sounded about the same when their crossovers had been tuned similarly.
Active technology would also negate the need for exotic expensive amplfiers since once you remove the passive technology, all speakers would be easy to drive.
The hifi market is driven by profit rather than sound quality. That is the short answer.