What are you using to do all your processing? That is a lot of taps!Eh, depends on your filters and hardware you're using. I'm not experiencing this issue, but I'm using 16k taps per channel with 1024 delay. That said, if you can match phase without issues at your xover points, there isn't a huge benefit to going FIR. I still want to test this comparing minimum phase to linear phase at some point, but I still haven't found the time.