In many cases speaker casings are a great source for unnecessary quarreling. Rectangular boxes with black and some holes may not be after the liking of every man, or more frequently woman. That is why we decided to go for the Coax 12 for an unusual design with sides that are at an angle and thusly refreshingly deviate from the usual. What seems to be complicated to build really is an easy task for any aspiring wood worker, if he only can call an upper mill and a jigsaw his own. What remains is a rather small amount of time that will be consumed.
In the midst of this pile of boards the boards are standing upright which were given a 5° angle. All other boards were left rectangular. At first the position of the base is marked on the front board that is lying on the floor.
Next, glue the first side flushly onto the front.
After that glue the sloped lid and base onto the side and front. Take care to glue the lid and base with the right sides. Check the perfect flush fit of the boards with your fingers.
Apply glue to the side edges of the lid and base as well as one edge of the side board and put the board into place thereafter.
Since front and back are much too wide at the base they have to be cut to size. Mark the position of the side with a pencil and saw along the drawn line with the jigsaw.
The router and the flush cutter will do their part and leave scacre things to do for the belt sander (not in the picture).
The Positions of the stiffening boards are marked. As a usefull tool one can use a rectangular board to keep the right angle. The last thing that is missing is the board tha will be the read wall.
The lid and base are still smaller than the sides, so the sides should be worked on with the belt sander in order to make them flush. We added a black painted board of wood adds increased stability and can be of any size, though of course it should not be too small. Apply any colour or varnish you want to the rest of the speaker casing. The reflex hole got covered with some cloth that was stretched over the end of the bass-reflex tube. The cross-over has been screwed onto the rear wall very close to the bass. Lastly the casings were filled with 4 bags of sonofil and we were done.