User guide
Est. time of work



Before you do anything please start with checking your speaker foams for imperfections. If you can clearly feel them peeling off contact a repair shop before you commense with the upcycling process.





  • Soldering iron
  • Screwdrivers
  • Glue Gun
  • Wirecutters
  • Wirestripper
  • Hacksaw


  • Beovox CX50
  • BeoCreate 4-Channel Amplifier
  • Rasberry Pi 3
  • MicroSD card (at least 4GB)
  • Power plug & supply
  • 3D printed parts
  • Hot glue or epoxy glue
  • Screws and spacers to fit the 3D printed frame
  • Two insulated wires for the power connector (20cm)
Video guide
Written guide
Taking apart the CX50

Step one

From the front of the speaker, remove the fabric covers.

From the reverse side, first unscrew the backplate.

Remove the dampening material.

Cut all of the wires connecting the drivers to the back plate.


Evaluate the state of the speaker drivers and make sure they are in good condition. If the speaker foams are damaged a repair is needed.

You can either:

a) refoam yourself

b) buy new drivers compatiable with the original

c) get them repaired by a professional

Creating a new power connection


Remove the original plastic speaker the 3D printed connector with a saw. Make sure to cut through the wider end, upon which you will be later placing the 3D printed puck.

Screw the power plug into the 3D printed puck.

Apply glue to the 3D printed holder.

Make sure to cover all the inner walls with a vast amount of glue.

Place the parts upon the opening you just created.

Make sure they fit in as tightly as possible.

Strip the insulated wires you reserved for the power connector, so that approximately 1cm of wire is exposed.

Check the polarity of the power supply (which is +/-) and identify the corresponding pin on the power plug. Solder both wires to the power plug pins.


Assemble the parts

Step three

Strip the wires coming from the drivers, so that again approximately 1cm of wire is exposed.

Place the Raspberry Pi upon the BeoCreate 4-Channel Amplifier.

Install the spacers to three corners of topside of the Pi using the supplied nuts as seen in the pictures (there are both nuts and screws in the box).

Screw the 4CA to the frame. Don’t use screws in the holes that will be covered by the spacers.

Install the Pi onto the 4CA.

Fit in the cut wires into the Amplifier.

Closing up

Step Four

Connect the power supply.

Plug the power supply into a wall socket.

Make sure a red light turns on on the Raspberry Pi.

Unplug the power supply from the wall socket to further proceed with the up-cycling.

Now prepare the SD card, by downloading its relevant software.

Insert the SD card into the Raspberry Pi.

Place the electronics into the bottom of the speaker.

Screw on the back plate.


Your speaker is now physically upcycled.

You can find the software installation here: