Which B&W's you got C_G?
I have/had (mate is borrowing them on permanent loan whilst I have no space!) an old pair of B&W 603S2's… Floor standers with 2 7" bass drivers in each speaker, powered by a bloody power house Rotel Power Amp rated at a conservative 130W per channel…
My neighbours used to love me! 😉
Best option, as said before, move the speakers so they're near a different wall. Also, move them out away from the wall a little bit. The closer the speakers are to a wall, the more the bass booms. So move them out by even 6 or 8 inches, and it makes a fair old difference.
Alternatively, buy a decent pair of Sennheiser Headphones for listening to your music after the watershed?