Subwoofer w/ most SPL's For Music Only System

Bass horns are exceedingly costly (check out the 'Living Voice' horn sub of old), they are also usually the size of a baby elephant, and don't go down nearly as far enough, 30hz if you are lucky (or unlucky), a friend uses 2 of the smallest REL's (Q50's I beleive) for his med/large(ish)hornloaded speakers to great effect as he only wants to underpin the bass he is already getting anyway (music only system). There are some seriously good musical subs out there for not much wonga. 2 subs are apparently better than one. I personally would love 2 SVS PB12/Ultra/2's!!
That should alter the foundations a tad!!lol

I would look at the Rel subs. I looked at a lot of subs and the Rel out did them all.

re: 21st Century BASS HORN ( http://www.lyngdorf.com/index.php?option=com_content&task=view&id=27&Itemid=55 )

Then there's this:

http://www.genelec.com/products/subwoofers/7073a/

hi
if you can find a vintage Janis subwoofer system , It consists of a upward firing (15"?) woofer enclosed in a nicely built and handsome sealed square wood cabinet along with a Janis Interphase 3-A electronic crossover/amplifier. this system retailed for over 2K when introduced.
best musical sub i ever heard, still owen my one (not 4 sale)