Just done the test .... playing Fleetwood Mac’s Dreams. I can hear all the backing vocals clear and distinct, I don’t have linear phase set up..... would it sound even better if I made it linear... shame I haven’t got enough taps to do a proper crossover. I don’t have any sharp phase changes, however I suspect its because only use one driver to cover 300hz to 6000hz.Sound-wise, the improvement is subtle, but I don't think I'm particularly sensitive to phase shifts. I can say that there's a certain clarity that I like, which I'm not sure was there before. Backing vocals in Fleetwood Mac's Dreams, for instance, are obviously distinct voices, rather than the layer of background mush that lesser systems render them as.
Btw - that track is awfully mixed, the bass is to hot, and dominates the sound.