If you use test tones, you might discover a couple of troublesome frequencies due to room resonance.
I fixed the problem in my room by moving them to 1/4 L from each wall. In your room, that would mean dragging them out to... yep... 3' from the wall, where they sat back when you liked them better. :)
The 26' resonance is probably not going to give you so much trouble (it's in the low 40s). The other one is around 90 hz, and you will definitely notice it.
By placing them 3' from the wall, you will be driving the resonant frequency at a phase difference of 1/2 pi from the speaker wrt the wall, and they'll cancel out quite a bit. Boom goes way, way down.
Try it with test tones, set around 94 hz and listen for the difference. The spot where you listen will affect matters as well, but no matter where you listen, you should still hear a significant decrease in the boom at that frequency as you place the speakers 3' away from the wall (wrt the orientation along the 12' wall).
I fixed the problem in my room by moving them to 1/4 L from each wall. In your room, that would mean dragging them out to... yep... 3' from the wall, where they sat back when you liked them better. :)
The 26' resonance is probably not going to give you so much trouble (it's in the low 40s). The other one is around 90 hz, and you will definitely notice it.
By placing them 3' from the wall, you will be driving the resonant frequency at a phase difference of 1/2 pi from the speaker wrt the wall, and they'll cancel out quite a bit. Boom goes way, way down.
Try it with test tones, set around 94 hz and listen for the difference. The spot where you listen will affect matters as well, but no matter where you listen, you should still hear a significant decrease in the boom at that frequency as you place the speakers 3' away from the wall (wrt the orientation along the 12' wall).