[808MGuy]

I tried that exercise too but polarity wise, it didn't result in me having any pairs out of phase from each other. I think my midbasses are out of phase from the rest of the system but each pair is in phase. Crossover points and slopes play a lot into this as well. Each parameter affects the overall system differently.

For me, I've never been able to get my midbass and sub to play well together. Its always one is good and the other disappears. It seems like there is a cancellation somewhere in the lower midbass/upper bass region but I can't figure out how to tune it out. Been trying all kinds of things for years now. I pretty much gave up.