I agree, Tom, I think the op is talking about the front wall.
I'd recommend treating the room with bass traps / absorption panels and diffusors. I'm new to room treatments as I just hung my first four panels (gik 244 broad band traps) but I'm totally sold on room treatment now. I think you can gain what your looking for by treating the first reflection points and going from there!
Good Luck!
I'd recommend treating the room with bass traps / absorption panels and diffusors. I'm new to room treatments as I just hung my first four panels (gik 244 broad band traps) but I'm totally sold on room treatment now. I think you can gain what your looking for by treating the first reflection points and going from there!
Good Luck!