if your sitting position is cleared roughly 1/3 of the room from the back wall, the treatment behind is less critical.
Do you know how long bass waves are? You must be referring to a castle.
Front or Back wall diffusers
Front or back wall diffusers, I have a 14' x 24' x 8' stereo audio room with Wilson Sasha DAW speakers. I want to know which wall to place it on. I have seen many photos with diffusers on the front wall, this is the most recommended, but I have doubts. Please some suggestions.