Before we moved the listening room I had in our former home was roughly 24' x 26' and the room added a single bass note that had no relationship to the bass line of the music I was listening to. I tried moving those 133# beasts around the room and the only place that the boom was mitigated was behind the sofa about midway between the 24' walls. Though the boom was reduced, the "visceral" effect of the bass was that it was coming from behind and the rest of the music was coming from ahead of the listening spot. I eventually had to purchase ten bass traps, which improved the sound about 85%.
The dimensions of my current listening room are great for integrating the subs with the main speakers, so my advice would be to sell you house and move 500 miles to a new home with a custom built listening room... ;-)