How are you connecting the sub? If you are using the preamp sub out from the receiver, then set the sub's x-over to its highest point. If using the receiver's sub preout, then the receiver handles the crossover, which I would probably set at 100Hz for starters. What do you mean "on the dial"? Is there a dial on there that actually has the names of the various speaker packages? Most subs just have a continuously variable low pass that adjusts only the sub and will have no effect on the satellites, though it would affect how the sub blends with the satelllites if you were not using the receiver's crossover function.
