When developing Erica Black Series and Pico Series modules, we accumulated quite a know-how on compact and great sounding designs, and we decided to share some of those with DIY community. And therefore Erica Synths proudly presents – DIY Synth Voice module!

It consists of all essential blocks for versatile monosynth, and is 100% patchable for even more controll options. In order to make the module more compact and reliable in tuning, it has digital/analogue design. VCO and envelope generators/LFOs are digital, other parts are analogue. Digital parts are designed arround pre-programmed MCU board, which comes with a kit presoldered on a small contoller board. Chain up several Erica Synths DIY Synth Voice modules and you have a versatile polysynth!


  • VCO with 16 waves and manual wave morphing
  • -1 oct suboscillator
  • White noise generator
  • External audio input
  • Audio Mixer
  • LP/BP VCF inspired by Black Polivoks VCF
  • Lin/log ASR envelope generator with looping function
  • Lin ASR EG/LFO with looping function
  • 9 LFO waves with wave morphing
  • Tap tempo and LFO sync
  • LFO frequency multiplication (x2, x4) and division (/2, /4) in sync mode
  • VCA with bias control
  • Auto callibration for better 1V/oct tuning



  • PCBs + ICs (MCU board, 2xK140UD12 opamps, PCB connectors) = 60EUR
  • PCBs + ICs (MCU board, 2xK140UD12 opamps, PCB connectors) + panel = 90EUR
  • Full kit = 280EUR

+ 21% VAT for individual customers in EU without EU VAT registration number + shipping


Erica Synths Wogglebug on Modulargrid


Technical specifications:

VCO range

C1 –​ C8

Audio output signal level

10V ptp

LFO Ouput signal level

-5V – +5V

EG Ouput signal level

0V – +10V

EG1 attack time

0 –​ 500ms

EG1 release time

0 –​ 2"

EG2 attack time

0 –​ 500ms

EG2 release time

0 –​ 1"

LFO Frequency

0.1Hz –​ 70Hz

VCA attenuation level


Power consumption

82mA@+12V, 50mA@-12V

Module width


Module depth



Disclaimer: please, if you have any questions on missing parts or similar issues, contact us within 1 months after receiving the kit!