> It appears it is possible to create a crossover that preserves phase but it is difficult. Most designs instead try to minimize the phase difference. This is

> It appears it is possible to create a crossover that preserves phase but it is difficult. Most designs instead try to minimize the phase difference. This is correct, I'm not convinced being slightly out of phase is a big issue though, and wildly out of phase shouldn't happen in a good design. Full range drivers have other issues, there is no way you can construct a chassis that is equally good at reproducing bass and treble as a n-way system, and its usually the treble that suffers. This is why commercial coax systems often are layered two-way systems, eg the KEF LSX50. I'm not saying what you are experiencing isn't real, but if there weren't pros and cons then high-end Hifi (as opposed to PA) speakers would have moved to that concept, which they haven't. Maybe what you are experiencing is due to better dispersion. You can improve that in n-way systems by adding strong chamfers to the enclosure, see popular DIY projects Disco-M [0] or LYC [1] or DXT-MON[2] (phase chart at crossover included in comment). [0] https://heissmann-acoustics.de/disco-m/ https://heissmann-acoustics.de/disco-m/ [1] http://www.donhighend.de/?page_id=3212 http://www.donhighend.de/?page_id=3212 [2] https://heissmann-acoustics.de/en/dxt-mon-vs-neumann-kh-120a/#comment-485 https://heissmann-acoustics.de/en/dxt-mon-vs-neumann-kh-120a...