All the cabinet panels are cut from 19 mm wooden boards, butt-jointed and glued. Construction is made easier if you start with the side wall. Glue to this the front panel, rear wall, lid and the base, which is offset towards the inside by 70 mm. Next, position the strengthening struts and spacers and glue them in place. Cut three holes (Ø 9 mm) in the inside spacer to allow the cables to be passed through. Finally, close the cabinetby gluing the other side in place.
To provide not only a pleasing appearance but also the best possible acoustics, the drivers should be recessed. This will require use of a router with the corresponding circle cutting tool. After that, the openings for the driver and terminals are cut out.
The crossover for the SYMPHONIE is mounted underneath the speaker on the outside of the base. This makes it easily accessible. Make sure the holes in the base for the cables (5 x Ø 9 mm) are aligned with the crossover outputs.
Once all the cables have been correctly routed inside the cabinet, seal off the cable holes in the spacer and base board with hot-melt glue, for example.
The damping material is loosely arranged in the cabinet. The space behind the bass reflex tubes should remain free.