Changing direction of subwoofer made a difference

I have a paradigm servo 15 and have had it for years. It has been in the same location for years as it is the only location I can really use. About a week ago, just for fun, I kept the subwoofer in the same location but instead of firing it into the room I moved the subwoofer 90 degrees and had the cone firing into the back of the room (it is about 5 feet from the back wall and now the cone fires towards the back wall instead of into the room). This has added a lot more authority to the sound without making the bass boomy, which is what happened when I tried to place it in the corner. Anybody else ever notice the same thing? I re ran audessey thinking well maybe it is just running "hot" right now but even after audessey it still had more bottom end. I don't pretend to understand room acoustics 100% but it was just eye opening how such a small change can impact the sound of your sub.