Just wondering if you needed more bass volume in the room, why not setup an array of MB4 Bose subs?

http://pro.bose.com/ProController?event=VIEW_STATIC_PAG.../panaraymb4.jsp&ck=0

It seems to me that if you need 4 or more B1s that it might be easier to just buy a pair or 4 of the MB4s to deliver the thump.

Hi mix4trinity

There has been lots of discussion about this possibility.

See: MB4 search results