I didn't see your post before I left. I would really like the opportunity to hear a pair of DTS-10's in a dedicated theater. I was in Blue Ridge, GA for the week when I went to visit DSL, but normally am in NC. A drive to SC would be worth it if the offer is still there.
They had a pair of DTS-10's setup with SH-50's. They didn't have any TH-50's for me to listen too, but they had other larger subs like a dual 21" I think. All the speakers were stacked creating a wall of speakers which lead to some models being placed better than others. The TH-50's were at the top maybe 5' above ear level from a ~15' listening position. The "room" boundaries were black cloth hung from steel trusses in an otherwise large steel & concrete warehouse (about the size of a small aircraft hanger). They don't EQ the demo speakers. The subs didn't sound level matched with the mains or each other. And there weren't any acoustic treatments.
So I'm not sure I know how they'll sound in a professionally designed, fully acoustic treated, dedicated theater space any better than if they recorded a demo and e-mailed it to me in a .WAV file. At this point all I can say is the DTS-10's play loud and the SH-50's sounded very clear against a highly reverberant back drop. I would very much like to hear them in an environment closer to what I intend to use them for. Next stop Chicago IMAX, unless Tony lets me invite myself over to his house to play.