Good afternoon,

My family room is 27 X 20 X 8 -- that's 4,300 cubic feet of air.

Has anyone run across sealed, full range speakers that can handle a room this large?

-- By sealed, I mean non-ported.
-- By full range, I mean down to 40Hz or so.

Or, has speaker design moved exclusively to combo systems -- high frequency stereo units combined with separate, sealed subwoofers?

Thanks in advance,

Dave