When space for the cross-over is scacre one has to either know exactly what one is doing or have a good tutorial. We will try to provide the latter.
Everything that is needed for this build are a couple of coarse span wood boards, glue and a scheme. Screwingframe and inner seperators had their holes drilled before assembly.
The assembly was that easy that it was done after only 10 minutes. Put the lid onto the side board, add the front and draw a line for the midrange chamber and the rear board and glue those in place as well. Mark where the seperator between closed and reflex volume will be sitting and glue the board there. Afterwards glue the base of the chamber which will function as the reflex port as well and screwing frame onto which after installation of the inside driver the rear wall will be screwed. After gluing in the base of the speaker, glue the second side too.
Almost as important as describing the development is a documentation of the installation of the cross-over. Because of the small casing there are not that many places where this may be made. That is why the following photo documentation was made.
Because the resistor is located on top of the coil the cross-over could not be assembled on a conductor plate from Intertechnik. All parts were glued onto a little wooden board and connected with some wiring. Most are used from the mid ranger which are visible in the front of the picture. All negative poles are soldered to the free end of the auxiliator, only the GPM116 is connected antiphased, which is why the red cable connects to the minus pole and the black leads away between the small coil with resistor and the small elko. The shared positive cable from the terminal leads to the intersection of the big coil, the blue MKP(R) and the big Elko.
First drill some holes into the seperating boards, then glue the cross-over with hot glue into the forward lower compartment of the bass chamber. Seal the holes for the cables with hot glue after putting the cables through the holes.
One mat of Sonofil gets stuffed evenly into the closed bass chamber, the small bass wrapped with sealing tape and screwed on. One may glue some sealing tape between read wall and screwing frame as well. Six to eight long screws guarantee that there will be no rattling.Back to: Assembly - Adherence without words Forward to: Assembly - Board for Board