Tymp Legio#

A compact drum voice designed for punchy, hard-hitting sound that ducks the rest of your patch, built on the Legio platform.


Inspired by our love of all types of percussion, Tymp Legio isn’t your normal drum-kit module with samples or basic emulations of simple sounds. Instead, we took the challenge of a small percussion module as an opportunity to make the sounds we wanted in a drum kit and fit them all in 6hp. Tymp Legio’s simple interface puts a massive tonal and textural range under your control. The modes (Boot, Cat, Boing) are more of an onomatopoetic guide to the sounds each encompasses. Each mode is offset by three octaves, but dial them up or down for even more versatility. Toggle the Tang switch to select the flavor within each mode that suits you. The Quack inputs will duck your audio to your percussion (or pass through in Boing mode), making Tymp Legio a fantastic performance percussion module. Tymp Legio is big percussion in a small footprint. That’s not all, though: it’s also a platform. Head to the Customer Portal to swap the functionality of your module to a growing number of alternate firmwares, completely free.

  • Type: Synthetic drum voice/platform
  • Size: 6 HP
  • Depth: 1.5 inches
  • Power: 2x5 Eurorack
  • +12 V: 140mA
  • -12 V: 22mA


Tymp -- from Latin: "drum"

Legio -- from Latin: "legion, army"

"Legion of drums"

Color code#

On boot, the Legio's LEDs will shine with this color pattern to indicate that it is running the current Tymp Legio firmware:

A illustration of two lights. From left to right, the lights are colored blue and green.


Power connector

To power your Noise Engineering module, turn off your case. Plug one end of your ribbon cable into your power board so that the red stripe on the ribbon cable is aligned to the side that says -12 V and each pin on the power header is plugged into the connector on the ribbon. Make sure no pins are overhanging the connector! If they are, unplug it and realign.

Line up the red stripe on the ribbon cable so that it matches the white stripe and/or -12 V indication on the board and plug in the connector.

Screw your module into your case before powering on the module. You risk bumping the module's PCB against something metallic and damaging it if it's not properly secured when powered on.

You should be good to go if you followed these instructions. Now go make some noise!

A final note. Some modules have other headers -- they may have a different number of pins or may say "not power". In general, unless a manual tells you otherwise, do not connect those to power.

Input & output voltages#

Tymp Legio’s CV-modulation inputs expect signals from 0 V to +5 V. The Pitch input’s range is -2 V to +5 V. The Hit input responds to a rising edge around +1.6 V. The audio inputs are AC coupled and respond to any Eurorack audio signals. The audio output can reach up to 16 V peak-to-peak.


The Tymp Legio interface

Sets the pitch of the voice. Turn for fine adjustments, press and turn for coarse.
Changes the decay time of the synth voice.
Wackitude / Wack
Changes the timbre of the synth voice.
Selects the type of sound.
  • Boing: Hats, bells, and metallic wackiness.

  • Cat: Snares, toms, noisy bits.

  • Boot: Kicks, subs, lasers, thwompy things.


Selects a variation of the main sound type.

Trigger input. Triggers the voice and the ducking envelope.
Stereo audio input. Audio is passed through to the output, and will be ducked whenever the Hit input is triggered and the left switch is set to either Boot or Cat. Duck time is adjusted based on the Decay parameter. In Boing mode, Tymp Legio does not duck but simply passes audio. The L input is normalled to the R input if the R input is left unpatched.
Out L/R
Main audio output.

Patch tutorial#

Patch a trigger source (like a clock generator or a trigger sequencer) to the Sync input. Patch the L Out (and R Out if using in stereo) to your mixer. Play with the switches to change the type of sound, and Decay and Wackitude to change the character of the sound.

Try running another element from your patch into the Quack input(s). Set the left switch to Boot or Cat to duck the external sound to the percussion from Tymp.

Firmware updating#

Tymp Legio’s firmware can be updated by the user via our firmware webapp on the Noise Engineering Customer Portal. Alternate firmwares available now transform the TL into completely different modules.

To update the firmware on your Legio:

  1. Turn off the power to your case and unscrew the module.
  2. Remove the power connector on the back of the module.
  3. Plug a micro USB connector into the port on the pack of the module, and the other end into your computer.
  4. Follow the instructions in the webapp.

Design notes#

Here at NE, we’re kind of fiends for percussion. A simple, small drum voice has been on our wishlist to do for years. Back in 2017 we even prototyped a standalone module. We had a great start, but in the end, we shelved it for lots of reasons. Enter Legio!

Legio was announced as the first firmware in 2020 (Virt Iter), and that it would be a platform, but we didn’t have alt firmwares built yet. And then it took two years until we had a stable enough supply chain for all the parts for it to release it. And in that time, we had some thoughts.

An obvious one was that we could use this platform to resurrect that drum voice module that we had always wanted to make. And there was much rejoicing.

Does this mean we have forsaken our beloved BIA? Of course not. But it’s hard to compare the BIA, at 10 hp and with seven knobs, to TL with three knobs. Tymp Legio is, like the BIA, a six-oscillator additive synth, but it’s a completely different take on it, not just a stripped down version of the BIA. In our playing with it pre-launch, we definitely found that there are some things with TL that you can’t do with BIA. In fact, we’ve found that they play really well with the BIA because they do different things.

In a normal release, Stephen writes code and Markus tests in the early phase, and then as we get closer to a product, the rest of the team gets a bit more hands on. Tymp Legio marked a new phase in our development, in which Stephen gave the team the tools to do a lot of the design of the sound you’re hearing. Markus took the helm. They would design a new firmware, drop it to the rest of us, and we would test and give feedback. (Admittedly, the process was more like this: Markus made a firmware, we all critiqued it, we tried to make firmware ourselves, we realized how hard it was to do and assigned it back to Markus, and then we happily tested what Markus gave us.) We disagreed, we agreed, we worried Markus would quit, we bribed Markus with the promise of Magpies vegan ice cream, we redesigned, we re-redesigned. It was a complete labor of love. For the love of percussion. In reality, it was also a really excellent opportunity for us to get the perspective of others on the team as we stepped into roles we don’t normally fill. An unexpected and great outcome of this was that we really had to hone our communication skills: with the team scattered across five states and three time zones, it was an effort to describe what we liked or didn’t like about a drum sound with the switches in specific positions and knobs turned to 3:00 and 9:00, but one that everyone was invested in making.

Tymp Legio, perhaps more than any other product we have ever done, is a real team effort. Everyone on the team had a real hand in the creation of this module.


Tymp Legio features extremely accurate pitch tracking and an autocalibration system. The modules are autocalibrated and tested at the factory, but should you feel you need to recalibrate, just power the unit on with nothing patched to the Pitch CV input. The module will calibrate itself during startup.


We will repair or replace (at our discretion) any product that we manufactured as long as we are in business and are able to get the parts to do so. We aim to support modules that have been discontinued for as long as possible. This warranty does not apply to normal wear and tear, including art/panel wear, or any products that have been modified, abused, or misused. Our warranty is limited to manufacturing defects.

Warranty repairs/replacements are free. Repairs due to user modification or other damage are charged at an affordable rate. Customers are responsible for the cost of shipping to Noise Engineering for repair.

All returns must be coordinated through Noise Engineering; returns without a Return Authorization will be refused and returned to sender.

Please contact us if you think one of your modules needs a repair.

Special thanks#

  • Starthief