What about the Mirage Prestige s10, or the Energy ESW v10 (Same sub different feet).
A lot of people (including me) thought these subs were overpriced at close to $900, so these subs got some negative feedback, in regards to the pricing, but they are often cheaper now, sales for $500, and they are really good, better than the svs pb10 nsd IMO musically, and cosmetically, although for HT I'd give to the pb10 nsd, but not by a longshot.
I know the v10 is often $500 now, and depending on your circumstances, may save you money over the PB 10 after shipping costs.
Give em a listen if you can.