Bang & Olufsen Beovox S35 User manual

A WRITTEN GUIDE TO UPCYCLING A
Beovox S35

INTRODUCTION
This is a guide on how to upcycle a Beovox S35 loudspeaker using a
BeoCreate 4-Channel amplifier and a Raspberry Pi.
The upcycling process will take roughly two hours and we advise you
to prepare for the project by having all the required items at hand.
PARTS
· Beovox S35
· BeoCreate 4-Channel Amplifier
· Raspberry Pi 3
· MicroSD card (at least 4GB)
· Power plug & supply (page 3)
·3D printed parts (page 3)
· Hot glue or epoxy glue
· Two insulated wires for the
power connector (10cm)
TOOLS
·Soldering iron
· Screwdrivers
· Glue gun
· Wirecutters
· Wirestripper
· Dremel tool
2

3
3
https://www.hiber
-
https://www.hiberry.com/shop/ac
-
https://www.hiberry.com/beocre
-
EXTRAS
Recommended power supply
18-24V, about 90W
https://www.hifiberry.com/shop/accessories/mean-
well-gs60a18-p1j/
Recommended power plug
mouting hole diameter: Ø8mm
https://www.hifiberry.com/shop/accessories/coaxi-
al-power-connector-5-5x2-1mm/
Files for 3D printing
https://www.hifiberry.com/beocreate/beocre-
ate-doc/

TAKING APART THE S35
STEP ONE
4

From the front of the speaker, remove the
fabric covers.
Unscrew the brackets holding the woofer.
5

Remove the dampening material. Cut all the wires connected to the cross-
over.
6

Unscrew the old crossover and remove it.
Save the screws for the step three.
7

CREATING A NEW POWER CONNECTION
STEP TWO
8

Remove the original plastic speaker
connector using a dremel tool. Make sure to
leave enough space to press fit the 3D
printed holder.
Screw the power plug into the 3D printed
holder.
9

Strip the insulated wires you reserved for
the power connector, so that approximately
1cm of wire is exposed.
10
Solder wires to each positive and negative
terminal.

Apply glue to the 3D printed holder.
Make sure to cover all the inner walls with a
sucient amount of glue.
Attach it to the hole on the back plate.
11

ASSEMBLE THE PARTS
STEP THREE
12

12
Place the Raspberry Pi upon the BeoCreate
4-Channel Amplifier. The supplied spacers
will not fix the Pi to the board, but just pre-
vent it from flexing and touching any com-
ponents on it.
13

12
Strip the wires coming from the drivers, so
that again approximately 1 cm of wire is
exposed.
Connect the power and drivers to the Am-
plifier. A detailed diagram is shown on the
next page.
14

Using the existing mounting posts and
screws, attach the 3D printed frame to the
inside of the speaker.
15

16
AMPLIFIER OUTPUTS
WIRES
FROM POWER
CONNECTOR
WOOFER TWEETER

CLOSING UP
STEP FOUR
17

Connect the power supply Plug the power supply into a wall socket.
18

Make sure a red light turns on on the Rasp-
berry Pi. If it does not turn on, you have
switched the polarety of the power supply.
Unplug the power supply from the wall-
socket to further proceed with the
up-cycling.
19

Insert the SD card with the BeoCreate soft-
ware installed on it, and proceed to set up
the amplifier.
https://www.hifiberry.com/beocreate/beo-
create-doc/beocreate-first-steps/
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