Ok so I know klipsch are not known for their subwoofers however a discount is a discount right?
Klappav and Videopro have the spl-100 for $790, most other places will have these for $844 currently. Good for anyone running the same sub and wanting to go for 2 or more sub set up.
Rrp for these are $1299 so $790 is a good price if you already have one. If you don't then might want to consider shopping around for an svs.
Also note this is part of the klipsch trade in deal however checking out and paying is a non issue but whether they'll call you up and get you to send something in to them to trade I wouldnt know.