I 'listened' to the response without the big speakers and it sounded the same. I think my room overrides such things. In other words, I would have to remove a lot more than those speakers. The two fat sofas have the most profound effect. There is some slight room modes but they are well out of the listening area and the mode is not unfavorable, just different.
I have been listening to a lot of music with bass, but not bass heavy in the lowest hz realm. But with things like an electric standup or a lot of clean, musical bass notes and these subs translate that perfectly with the scale of the speakers they are playing along with.
Really nice sounding system all the way around.