200Hz is way high for a sub to cover, IMHO. In fact, I wouldn't set mine above 80Hz (THX pref.)
For my system (KLF-30 fronts, KLF-C7 center, SS-3 rears, Velodyne HGS-10 sub), in HT mode, I have the sub crossover setting at 80Hz, but have the receiver's crossover points at 60Hz for the fronts, and 80Hz for the center and surrounds. Works very well for me.