As in, do they cut down on the dynamics to protect speakers, ears, and enable them to get a more 'even' sound? I cannot help but think that movie theaters tone things down (just a bit) compared to a good home system. As in, things are a *bit* soft and a *bit* more mellow. I have a Klipsch/Harman Kardon rig, and on some movies, it nearly rips the room apart, where as the SAME movie in the theater was loud, but seemed to lack some of the edge. This is not a bad thing, but do you know if this is the case? I certainly expect movie theaters use a gate or the like as to protect their speakers, especially the subs.