Hi, nice system. I also have the 7B's. You really owe it to yourself to add some real bass traps to the room. The foam is okay for the mids and highs, but not doing a thing for that boomy bass your hearing. Don't have to spend a fortune, simply make some yourself using Owens Corning 703 panels covered in a breathable fabric of choice. Acoustics is fun and rewarding, especially when you firgure it out on your own. Do little research on bass traps and really hear what your system is capable of. I promise you will be shocked.
Have fun!