Hi Big Will,
You can try gradually moving the sub out of the corner along one wall or the other and there will be less deep bass emphasis. It's always a compromise in any room, but the ideal is to find a location where, at your listening position, you get reasonably smooth, extended bass reinforcement.
If I shift from one end of my couch to the other, there is a significant change in the deep bass from the subwoofer. The tyranny of room dimensions and standing waves at work.
Usually you can find a reasonable compromise.
Regards,
