Good tip on applying bass PEQ separately - even with the XO the bass leaked over into the A7.4? I guess even with a -24dB slope there is finite leakage. Your response looks great - I bet it really sounds good now. Nice work there.
Yes, there was some channel leakage into the A7's. With applying the PEQ only on the output side, the problem looks to have gone, or maybe just not as audible... more testing needed 🙂