What sub under a grand?

Start out with one of these pre owned and add another later
the units ship at 103 pounds weight ea and will out music anything listed above I promise.
The real advantage is a smoother in room response and blending your existing speakers by High passing your mains will dramatically clear up your whole system.
JohnnyR
Vandersteen dealer
http://vandersteen.com/products/model-2w-series-subwoofers

I use Rythmik subs and can absolutely second the recommendation, but I'd also think hard about the SVS dual SB-1000 offer. A pair of sealed SVS subs with 12" drivers at $950 is probably a great way to maximize your chances of getting great sound, because A) SVS makes a very highly regarded product and B) dual subs offer a lot of placement flexibility (which really improves your chances of smooth, well integrated bass response).

Good luck

YEs, two good subs are almost always better/easier than one.

I'm liking what i see with psa subs, anyone own one?

Or maybe I can look into getting my rel fixed, the problem it is having is while watching a movie, tv or gaming it rattles. with music its fine, idk if its the bottom driver thats bad? or something else? but the cost of repair could out weigh getting a new sub. I know I won't be buying a rel again at 1k I only got 5yrs out of it. and rel's customer support sucks!