@audphile1
I’m saying that manufacturers should offer 90 degree plugs with the cables at 45 degree angles, like many surge protectors have already.
I have 2 types of bass traps from GIK and both have soft sides, but you are right, not all will work, but having 1" away from the wall is better than 5". Even if not discussing a bass trap, the 90 degrees gives us back a lot of floor space, such as behind a speaker or rack.
The point was not that a 90 degree plug solves a bass trap problem, explicitly, I just used it to illustrate the benefits to floor space.