For a 4500cf room I'd try and swing a deal with the DD15 or DD18(surely they would do a deal for you), this is also Velodyne's recommendation for that size room. I realize it opens up to a larger area so you could see if its livable until you close the room off(for 9500cf velodyne recommend dual 1812's
![Eek! :eek: :eek:](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
).
My listening area is open to the dining which makes the total area 3500cf(and more when the hallway door is open) and my DD15 easily fills it(to achieve calibrated reference levels the sub volume is at 7%, 25% is scary and hits 123db at my seat, and 40% is insane
![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
)
Also the DD15/18 are THX ULTRA 2 certified, have a mike input also on the front and use a larger magnet structure(24lb compared to 19.3lb for the DD10/12)
cheers
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)