The Klipsch, RW-12d, at this price point , hand's down, is the class of the field. The longer you wait to get your order in, the greater your chances are of missing out on this deal. This sub model, at this price, goes fast.
If you can, buy in pairs as pairs of subwoofers gives one the best sound quality because of sound null filling; smooth, strong bass.
I'm stuck in a time warp while saving for another subwoofer. I'm envious of all who buy this subwoofer because yes, in my opinion, at this price point, it's that good; worthy of the deadly sin of envy.