ive often wondered the same question. in my car i have 3 way acitves that feature a 3" wideband driver made by hybrid audio technologies that is cspable of 200 to 18000 hz. it does not sound its best running like that but it sounds amazing using it from 400hz to 5000hz which gives you the keat of the music in a single coherent point source. it also allows the tweeter and woofer to run miles away from their break up frequencies and puts the crossover points where phase issues are easy to manage. the system sounds clean, loud and spectacular and i would love to have a home audio speaker with similar approach.
economics may play a factor because wide band drivers are typically lower sensitivity and multiple drivers may be needed in passive setups to prevent padding down the woofer and tweeter so heavily. still quite feasible and desirable though, imho.
economics may play a factor because wide band drivers are typically lower sensitivity and multiple drivers may be needed in passive setups to prevent padding down the woofer and tweeter so heavily. still quite feasible and desirable though, imho.