MATRIXSYNTH: EcoLab Eurorack Module Demos

Wednesday, March 03, 2021

EcoLab Eurorack Module Demos

The above playlist features demos for four of EcoLab's eleven current module line-up. You can find their additional modules at Playlist:

1. 808 Kick Drum Replica Eurorack Modular Synthesizer EcoLab
It´s a modern approach of the possibly most popular bass drum in electronic music scene.

I´ve been following the original schematics to get the closest result.

As you might remember, there is no tuning knob in the original one. It‘s fixed to 56Hz.

This version goes from 42Hz to 127Hz

12V – 11mA

-12V – 12mA

Depth 32mm
2. 3320 VCF 24dB Voltage Controlled Low Pass Filter Eurorack Modular Synthesizer EcoLab
24dB Low Pass Filter with resonating Q into a clean sine wave.

3x CV in for cutoff

1x CV in for Q


Depth 25mm

+12V – 13mA

-12V – 14mA
3. 3340 VCO Voltage Controlled Oscillator Eurorack Modular Synthesizer EcoLab
Classic analog oscillator known from many famous synthesizers.

CVins for 1V/O, linear FM, PWM & Hardsync

Outputs – Triangle, Saw (ramp up), Rectangle

Trim potentiomter for Scale, HighFrequency & Initial Position

Superestable over 6 Octaves


Depth: 30mm

+12V 23mA

-12V 21mA
4. ENVgen Looping Envelope Generator ADSR Eurorack Modular Synthesizer EcoLab
Classic ADSR with Gate

Attack / Release with Trigger

Gated Mode

LFO Mode

Extra Punch Switch

CV ins for Level, overall Time, Attack, Release (0-5V)

Hidden LED Feedback

+12V 13mA

-12V 4mA


Depth 32mm

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