hello, perhaps this is somewhat of an off topic question, concerning crossovers I have been under the impression that a 4th order linkwitz-riley electronic crossover was a far superior choice for auido production/reproduction of music, especially due to phase and time matching between adjacent drivers. For an excellent source of info on this: http://www.rane.com/note107.html I realise that the thread has been mainly about less complex systems, such as a simple pair of commercially available speakers, or the same with a sub/s. But even a 5 way crossed over system comprised of 2 stacks of loaded cabs is really nothing but a complex 5 way speaker system. Any comments will be well appreciated, thanks