Superbooth 2025: Euterpe Itinera is a new, super characterful Sallen-Key filter for Eurorack with many twists.
A filter is an essential tool in sound design for brightening and dampening a sound. However, you can also use to infuse a lot of power and character into a sound. For example, the Sherman Filterbank 2 or the Euterpe Laboratories Vertice analog filter bank from Italy are standalone filters that go way beyond filters and are true sound shapers.
Let’s stay with the Vertice for now. This filter beastie is now available for Eurorack. Better say a part of it. At Superbooth 2025, Euterpe released the Itinera, a new super characterful filter derived from its big rack filter.
Euterpe Itinera
Itinera is a new filter module derived from the first stage of Euterpe’s Vertice filter bank with various expansions.
At its core, Euterpe Itinera is a highly musical Sallen-Key filter (Korg MS-20) with lowpass, bandpass, highpass, and notch modes. You can tweak it with classic cutoff and emphasis (resonance) controls and set the modes with the dedicated mode switch. Plus, you have an independent input level control.
But Itinera is much more than just another MS-20 filter for Eurorack. Euterpe has incorporated many juicy tweaks into the circuitry, transforming the filter into a similar shaping beast as its premium filterbank.
One of them is the formant control that deforms the filter shape, creating vocal sounds from rich waves and reinjecting the input signal at high settings.
A fun and unique parameter is Vindicta, which introduces more filter madness. It causes the circuit to malfunction and alter its behavior, resulting in temporary dropouts that create rhythmic elements.
In the lower row are three more fascinating controls, solved with large, premium throw switches. The overload switch adds +40dB of gain from a silicon transistor distortion stage, giving you a wide range of tones from fuzzy to rich distortion filtering. There is more.
Then, the attitude switch allows you to switch from a diode-based resonance circuit to a transistor-based one, adding further aggression and distortion to the filter sound. It also changes the emphasis response of the filter significantly.
Further, the Innesco switch, only available in the transistor resonance setting, drives the resonance in heavy self-oscillation. The Italian developer describes it as a “filtering oscillator” that gives you aggressive leads, massive kicks, and more. All this filtering and distortion fun is entirely manual and CV-controllable via the CV inputs.
First Impression
If you’re looking for a filter that goes far beyond classic analog filtering and offers a high level of quality, then you should take a look at this new module. The linked video by YouTuber Stazma beautifully demonstrates how characterful, yet often brutal, the filter can be in shaping sounds.
Euterpe Itinera is available now for $749 or 590€ + VAT.
More information here: Euterpe
Available at my partner
Be the first to comment