An extension of this thread ( https://www.diyaudio.com/forums/full-range/335603-steel-truss-projection-screen-horn-mouth.html ), but looking at the rear of the subs this time.
How bad have I messed it up by having that pipe, and the second truss, in the rear fold?
How bad have I messed it up by having that pipe, and the second truss, in the rear fold?