I'm guessing those are the Cap 4000s you have in front of the screen? How is the Dev mixing in with them? My builder fell through so I said F it and bought a workshop and all the woodworking tools needed so I'll be starting my dual Dev build soon. They will mostly be used with the 2 channel system but I'm thinking about adding them to my dual V3611s in the HT. Where did you source the BB from?
Theater: JVC RS540U, 2.35:1 142" screen, Onkyo RZ1100, Panasonic UB820, Outlaw Audio M2200 Monoblock x3, Klipsch RF7II, RC64II, RS62II, 5800CII x4 Atmos, PSA V3611 Subwoofer x2.
2 Channel: Parasound P6, Parasound A23+, Rega Planar 6 with Ortofon 2M Bronze, Klispch La Scala II, Behringer NX6000D, B&C 21DS115-4 powered Devastator V1 x2.