I looked at the specs for the Infinity TSS-1100 satellite/subwoofer system, and now I do agree with Kal. Leave the crossover for the front left and right speakers at 200 Hz, if that is what the receiver selected in the auto-configuration. The twin 3.5" woofers in each of the satellites are in danger of getting blown by excess bass energy, regardless of their rated power handling. Also leave the subwoofer crossover where the receiver selected, since as Kal points out, that only pertains to the bass re-directed from the satellites, not to the LFE channel. You will not be missing any part of the audio range.
To recap, the subwoofer will not be damaged by too high a crossover, although the sound quality may suffer. The satellites WILL be damaged by too low a crossover. Just place the subwoofer as close to the front satellites as possible (ideally right between them) and the subwoofer should sonically blend in with the satellites fairly well, especially since you indicate that you do your 2 channel music listening on a different system.
To recap, the subwoofer will not be damaged by too high a crossover, although the sound quality may suffer. The satellites WILL be damaged by too low a crossover. Just place the subwoofer as close to the front satellites as possible (ideally right between them) and the subwoofer should sonically blend in with the satellites fairly well, especially since you indicate that you do your 2 channel music listening on a different system.