This product has been retired. The contents of this page are provided for reference only.
Multi-purpose eurorack module inspired by reel-to-reel tape machines.


Sold by Zlosynth Instruments


No tax for United States [change]
This store is temporarely paused. I have transitioned to sell through retailers, so I can spend more time building and less time shipping. I appreciate all your support.

Note: This is a DIY kit. Assembled modules are available through retailers.


This multi-purpose module is inspired by reel-to-reel tape machines. It simulates magnetic hysteresis to provide warm saturation, its four independent delay lines can be used to sculpt rhythms or feedback loops, and it offers wow and flutter control. The module also goes beyond typical tape machine features, with free-moving delays, trigger sequencing, and an internal oscillator.

Note that this is a eurorack module, not a complete synthesizer. It cannot be used without a case and a power supply.

Overview + demo

Video preview


While the module works perfectly well as a regular delay, its flexible interface can also be wired up to provide a variety of effects, sounds or CV sources.

  • Delay with 4 reading heads
  • Up to 5 minutes of audio recording
  • Tape saturation simulation
  • Wow and flutter effects
  • Tone control
  • Voltage-controlled oscillator
  • Trigger sequencer
  • Stereo output
  • LEDs visualizing dialed parameters
  • Programmed in Rust
  • Based around Electro-Smith's Daisy Patch SM platform
  • Aluminium panel with high-quality anodized finish
  • CNC engraved lettering
  • 20 HP, skiff friendly

To learn more, see the video above or read the User Manual.


This kit contains a printed circuit board (PCB) with all the surface mount parts (SMD) parts already pre-soldered. The through-hole components are left to be assembled by you. If you wonder about the complexity, check out the Build Manual. Apart from all the needed parts, this kit also contains power cable and mounting screws.

Links to code and documentation

Documentation (

Code (

Product HS Code: 92099480

Shipping policy

Orders are handled over the weekend and shipped on Monday. All items are shipped from the EU. All packets are represented to courier services and customs at their true sale value, and all responsibility for import fees, taxes and tariffs lie with the buyer, unless stated otherwise in the shipping option.

Here are some extras that might be useful for your project!

The seller

Zlosynth Instruments

Brno, Czechia
34 orders since May 20, 2022
Hailing from Brno, Czechia, Zlosynth Instruments is a project which aims to provide intuitive and immersive eurorack modules that allow access to both musical harmony and insanity.