Whatta Ya Think About Hsu Research Subwoofers?

Of course there are "better" subs.  But the OP has a budget.  I would also take the above comments with a grain of salt.  The older series models do not perform at the same level as current models.  Also, I much prefer a sealed design for music at this price.  

I also have a pair of ULS-15's in my main system.  I think these sealed subs offer very high quality bottom octave coverage for music.  Some might think that with Tekton DI's you wouldn't need subs--but not me!  I am not about an excess of bass.  Rather, I demand tight, musical bass that plumbs the depths that my main speakers just don't do--especially pulled well out into the room.  I've said before that they complement the DI's beautifully--super high value, nicely finished, tremendous performance.  Buy a pair and be happy.

Mr. Contuzzi
You are missing the point.  I am sure your subwoofer is bigger than mine.  But the OP is looking for an affordable sub.  Not yours--whatever it may be.  Why would you even post on this thread?  Oh, guess I already answered that.

@bob540    That would clearly be the best choice out of the Hsu line for both aesthetic and musical reasons.  Your room does sound a bit tight, so you clearly would have issues with placing larger cabinets.  It's hard to predict where your subs will sound best.  Two is better than one for reasons noted above.  I lugged my subs to all the different placement options I had in my room. (You can see a pic of my room under Virtual Systems). In the end, they worked the best corner loaded.  Every room has its different set of resonant modes and nulls.  You just have to try it and see where things sound best from your listening position to your ears/taste.  The test CD Hsu provides is helpful as well music with deep bass content that you are well familiar.  Would be happy to look at pics of your room if you would like.