
Input is a Eurorack module designed for pre‑amplifying audio signals from instruments such as guitars, microphones, and more.
Continue reading Input – Instrument Pre-Amp

Input is a Eurorack module designed for pre‑amplifying audio signals from instruments such as guitars, microphones, and more.
Continue reading Input – Instrument Pre-Amp

The 3 x Passive Attenuator is an older project that offers, as its name implies, three independent passive attenuators. This very simple module is extremely useful when you need to reduce the amplitude of a signal that would be too strong for another module, or when sending a Eurorack-level voltage to a more sensitive, non-Eurorack audio equipment.
Continue reading 3 x Passive Attenuator


The passive OR module is the perfect tool to merge gates and triggers from multiple sources (e.g., sequencers, LFOs, clocks, dividers, or other modules) to create complex rhythmic patterns.

Passive Multiples are among the simplest and most essential modules you can find in a modular synth. You really need plenty of them!
Continue reading Passive Multiple – 2HP

Your Eurorack Chromatic Tuner utility.
Tuner is a Eurorack and analog synth tuner utility.

Continue reading Tuner 0.2
The AttenuVerter is a dual-channel CV processor. It can attenuate, invert, and offset two independent control voltages.

Continue reading AttenuVerter – Version 0.2

The Mixer 4 is a straightforward 4 AC-coupled mono input mixer for Eurorack systems.
Continue reading Mixer 4 – Version 1.0
The Tuner is an old project, inspired by the tuner sub-circuit proposed by LMNC in his amazing Performance VCO.

Continue reading Tuner 0.1