All the cabinet panels are cut from 19 mm chipboard or medium density fibreboard, butt-jointed and glued. The chamfers on the baffle can be applied with a power jig or circular saw set to 45° or applied later using an orbital sander.
Next, cut out the openings for the drivers, the bass reflex tube and the terminals.
Due to the small size of the cut-outs in the baffle, it is difficult to mount the crossover inside the speaker cabinet. It would be possible to make the base removable. However, it is easier to wrap the crossover in damping material and place it through the lower cut-out in the baffle on the floor of the cabinet. When you begin fitting the drivers, start with the bass reflextube. In order to be able to get the inner trumpet flange through the opening for the upper subwoofer it will be necessary to carefully remove about 5 mm from both sides of the flange.
The damping material is loosely arranged below the bass reflex tube in the cabinet in such a way that the area around the vent remains free.