Our business card is more than a business card


if you’ve already met us in person, you may have ended up with our business card in your wallet.

photograph by Pierre-Romain Guedj

well it’s a little more than meets the eye. it’s actually a circuit board that you can turn into a portable 2-voice mixer with a cross-fader!

the idea of this 2-in-one device came from our early work, when we built our first musical tools.

a passive mono mixer is one of the easiest and most accessible DIY projects you can start with, since it requires very few and basic components.

it’s only 2 resistors, 3 jack connectors and a potentiometer.

once you have every component, 90% of the job is done. just solder everything and the mixer is operational!

if you want to take it a step further, you can add 2 acrylic sheets, both for protection and for the looks.

photograph by Pierre-Romain Guedj


exploded view


for the resistors, we recommend 10K ohms to keep a 1/1 ratio between both channels.


if you have access to a laser cutter, here are the minimalist casing designs.

BUISNESS_CARD_PMMA_top.dxf - scale = 1.000000, origin = (0.000000, 0.000000), method = manual

acrylic top: download here

BUISNESS_CARD_PMMA_bottom.dxf - scale = 1.000000, origin = (0.000000, 0.000000), method = manual

acrylic bottom: download here


here is the process and demonstration of the build


sooooo…… how do you get one of these?

well, since it’s a business card, the game is to meet us to get one!

either stop by our workshop in paris, or at the events we’ll attend this year, like superbooth and synthfest france.
we’ll announce our presence at these events on our social media and newsletter.

hope you have fun with this!

don’t hesitate to ask questions and share pictures and videos on our discord :)

- vincent and vincent

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