Need help choosing a subwoofer

I don't know much about that Jamo sub, but I also couldn't find it for sale anywhere. Where are you getting that price?

That depends on how much you can spend.

Convince the wife to spend (I hate to tell people that, but...)the extra money. When you play a bass heavy movie or CD, she should be all smiles. My budget went from $500. to $1200. and it was well worth the price jump.

Jeff

I'd stay away from the Jamo sub. Once upon a time I had one (not the model your looking at)....and it just didn't cut it.
There speakers are OK, and I am sure you like them.

I'm an HSU guy and had many of their subs. I had a VTF2/3 and I think it would be wise to consider it. It matches your budget.
Has a lot of output. The difference between the VTF2/4 and VTF3/4 is the port size. VTF2/4 has 2 3" ports in the back,
and the VTF3/4 has 2 4" ports in the back plus it's side firing as opposed to down firing, (thus having more output)

You have a large area to fill, and I might suggest you get a second VTF2/4 in the future (when you can afford it).
$582 total with shipping....just my 2 cents.
Others will chime in with other options.

http://www.hsuresearch.com/products/vtf-2mk4.html

55% off is rather compelling, but like the others I too am unable to find much information on it. Since it appears to have been out since at least 2007 that strikes me as somewhat odd. Or telling I suppose, depending upon your perspective. On the flip side, it's hard to imagine it's been able to survive all these years if it didn't have something to offer. Looks like the only reason they're being sold so cheaply is Jamo has a Sub 660 now, which appears to be nothing more then an evolutionary change.

From those, the VTF3 would be the best in my opinion. It has equal output to the LFM-1 EX, except at the low end where it will surpass the LFM, and it has more output and deeper bass extension than the PB12. It also has more configuration options than the Outlaw and SVS subs. It is easily my first choice at that price point. As for the Jamo subs, I don't know how loud they would get, but that is a sealed 12", it won't have the deep bass of the Hsu, Outlaw, or SVS subs. It still might not be bad though, but I would want at least two of those for any home theater, and at that price there's no reason not to get multiples. Just guessing from the specs, but I think two might be able to outperform the Hsu, Outlaw, and SVS subs above the mid to high 30 hz range. Also make sure that is an authorized dealer for Jamo products or it may not be covered under warranty.

While neither of those subs will match the VTF3's output, the PC12 NSD will at least have better deep bass performance than the SB12. If you want something that has a small footprint and better performance than the VTF3, look at the PC12-Plus. If you can live with less output and deep bass, go for one of the NSDs. Since return shipping won't be cheap, you might try concealing the sub though, and get her input on that. Like place a tablecloth over it and set a plant on it. Also is there anywhere else in the room it can be placed which will be less conspicuous? Like say, an endtable type position?