Jason,

The BFD and room treatments will not help. I get good thump out of my cheap Sony in the same room that the 600 is in with no treatments and no BFD.

What happens when you run the 600 and the EQ together? Maybe you can use the EQ for music and the 600 for movies?

House of the Rising Sone
Out in the mid or far field
Dedicated mid-woofers are over-rated