ATLANTIS MK II
The cut sections of the cabinet, except for the base, are glued as shown in the drawing. Bevels can be cut with an adjustable jigsaw or circular saw. Since it is not always easy to set the exact angle, it is worth making a couple of trial cuts on spare wood.
The cabinet is made with a double floor to enable the crossover to be positioned outside the speaker housing chamber itself. The base to which the crossover is attached is then screwed to the cabinet from below. The pre-drilled cable holes inside the housing must be filled afterwards using hot-melt glue or silicon mastic.
One mat of damping material are required for the mid-range cabinet. The remaining 2 mats are in each bass cabinet. Leave the space behind the bass vent free of damping.