do they just rumble with the bass or something?
The Dbox seats at the Ultrastar in scottsdale are freaking awesome. They rumble with the bass yes, but they also move with the action like a motion ride. It's slightly distracting for the first few minutes just cuz ya know, your seat is moving around, lol but once you get into it, it is a blast! You can select the level of movement or turn it off as well.
I highly recommend it! I have seen several movies there; Gravity, 300 rise of an empire and Thor 2. I will definitely see this one there too!