Originally Posted by CRASHBOX
This is an old thread, but I understood all three way corners to be the most problematic, followed next by all the two way corners, therefore dictating the most effective priority of placement for bass trapping to best treat a room. That principle supports Glenn's ceiling soffit and all corners approach.
Not necessarily, however, this is pretty standard in most rooms. The reasons why is because, to put it simply, sound is 'forced' into corners and has a hard time trying to escape. Also, you can dampen all three axial modes from the tri-corners, so its also a go to spot. For the most part, you can do great damage in the corners, but it is not truly correct that corners are problematic.