The company noted as manufacturer has product listed
for home theatre as well -- 5:1 setups.

There have been several small designs at _audioXpress_
over the last few months which look like a match for such
a unit. The Fitzmaurice Tuba (forthcoming) would be one and the
G.R. Koonce project for small 8" vented subs is the other.

My interest in this is a bit tepid though. You see, right
now I am hearing what passes for subwoofer output is a dull
thud through the wall from my neighbors in the apartment complex.