HEX cor // assembled


HEX cor is a digital polyphonic synthesizer with a capacitive keyboard, potentiometers for signal modulation and an adaptable looper that through its unusual shape explores new ways of interaction and sound synthesis.



Touch the golden capacitive pads to trigger the tones. There are many ways of playing – slide your fingers over the pads and try touching multiple pads at the same time (to generate chaotic clouds of sound).

There are three potentiometers dedicated to sound manipulation. OCTAVE, DECAY and WAVEFORM settings can be adjusted to produce sounds ranging from thick drones, bass stabs and 8-bit bleeps to techno hi-hats.

There are two selectable scales that can be chosen by rotating OCTAVE to min position. Scales are then chosen by positioning the WAVEFORM—left half selects C major and the right C minor. To exit scale choosing mode rotate OCT out of the extremities. By default cor boots tuned to C major.

By now you have probably played some improvised melodies and want to start recording. HEX’s looper has a total length of 256 steps. Use the LENGTH potentiometer to adjust the desired length of the loop window – ranging from 8 to 256 steps (in increments of 8). The blinking LED on the left side of LENGHT indicates the tempo/sync pulse (it blinks on every second step of the loop) while the LED to its right indicates the end of the loop.

I /O
The switch next to the 3.5mm stereo jack (10) sets the output to either dual mono or sync (R) + mono (L) mode. This enables other sync-able devices to sync to HEX.

HEX can be powered via the USB C socket (11) using a USB power adapter/power bank.


You will need a soldering iron, solder, pliers, tweezers and some patience. Before you begin the process, make sure you are working on a clean, well-lit surface. Be careful with the components, some of them are very small: take them out of the packaging one at a time, when needed. Most of the tiny SMD components are marked with numbers that match the numbers printed on the PCB. If you are new to soldering (SMD), we recommend watching some online tutorials beforehand. For the assembly video, visit our website. In any case, take it slow, go step by step and enjoy the process of building your own HEX. It’s like a puzzle that you can use and play with afterwards. Oh, and if you have any questions, do not hesitate to contact us. Have fun!


1. 6 pin header / 1x
2. 16MHz crystal oscillator / 1x 3. 10uF electrolytic capacitor/ 1x 4. 12mm pushbutton / 1x
5. 28 pin IC (chip) socket / 1x
6. ATMEGA328 chip / 1x
7. 3.5mm jack / 1x
8. Potentiometers + knobs / 5x 9. Nuts + bolts / 6x
10. PCB + wooden base / 1x


Additional information

Weight 0,170 kg
Dimensions 27 × 23 × 3 cm


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