The loudspeaker segment box has a cuboid or square outer box without a front wall. It also has a smaller cuboid or square inner box without a back wall. The inner box is made fast inside the outer box using spacers which keep a predetermined distance between the walls of the outer and inner boxes. Preferably the boxes are spaced apart by adjustable spacers such that the inner box can be pushed further into or pulled further out of the outer box after locking the spacer.
