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Average Price: $337

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Based on price data from 1 merchant for "Rossum Electro-Music Linnaeus Eurorack Thru-Zero State-Variable Filter". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash your sonic creativity with the Rossum Electro-Music Linnaeus Eurorack Thru-Zero State-Variable Filter. At first glance, this 16HP multimode filter may seem like a typical Eurorack module, but it packs features that will transform your sound design experience. Equipped with standard frequency and bandwidth controls, it also boasts a thru-zero modulation capability, allowing you to explore unique sonic textures by modulating resonant frequencies into negative territory. This opens up a world of possibilities for crafting original and expressive sounds, making it a must-have for any modular synth enthusiast.

Beyond its innovative modulation abilities, the Linnaeus offers a user-friendly interface with a one-knob-per-parameter layout, ensuring that every adjustment is intuitive and precise. The integrated variable-waveform LFO linked to the cutoff/resonant frequency further elevates its versatility, providing dynamic modulation options that can redefine how you approach sound design. Whether you're aiming for subtle shifts or dramatic transformations, this filter adapts seamlessly to your creative needs. Plus, its stereo operation and extensive CV I/O make it a perfect fit for any Eurorack setup, giving you full control over every aspect of your sound.

Key Features:

  • 16HP stereo multimode filter module for Eurorack
  • Thru-zero modulation of resonant frequency for unique textures
  • Integrated multi-waveform LFO with index and rate controls
  • User-friendly one-knob-per-parameter layout
  • Extensive CV I/O for comprehensive parameter control
  • Ideal for creative sound design in modular synth setups

Product specs

Type Thru-zero State Variable Filter Module, Black
Frequency Controls 2 x Freq CV, Osc Freq, FIlter Freq
Controls Response CV, Response/Q Comp, Wave, Filter Q, Mod Index, Q CV, Index CV
Analog Inputs 2 x 1/8" (L, R)
Analog Outputs 2 x 1/8" (L, R)
Other I/O Response CV, 2 x Freq CV, Q CV, Index CV, 1V/Oct, 6dB/V, Ext Lin CV
Depth 0.98" (25mm)
HP Size 16HP
Power Usage +12V/140mA, -12V/25mA
Power Supply Requires Eurorack Case and Power Supply

FAQs

What makes the Rossum Electro-Music Linnaeus a thru-zero state-variable filter?

The Linnaeus is a thru-zero state-variable filter, meaning it can modulate the filter frequency through zero, allowing for unique phase and frequency modulation effects that are not possible with traditional filters.

How does the Linnaeus module handle frequency modulation?

The Linnaeus offers two frequency CV inputs and a modulation index control, allowing for complex frequency modulation, including thru-zero FM, which provides a wide range of sonic possibilities.

What are the key input and output options on the Linnaeus filter module?

The Linnaeus features 2 x 1/8" analog inputs and outputs for stereo signal processing, along with multiple CV inputs for frequency, response, and modulation index control.

Is the Rossum Electro-Music Linnaeus suitable for a small Eurorack setup?

Yes, the Linnaeus is compact, occupying only 16HP in a Eurorack system, and requires a Eurorack case with a power supply, making it suitable for small to medium-sized setups.

What power requirements does the Linnaeus module have?

The Linnaeus requires a Eurorack power supply, consuming +12V/140mA and -12V/25mA, which is typical for a module of its complexity.

sonicstate

sonicstate

Superbooth 2019: Rossum Electro-Music Linnaeus

Video thumbnail for Superbooth 2019: Rossum Electro-Music Linnaeus by sonicstate

Superbooth 2019: Rossum Electro-Music Linnaeus

sonicstate

sonicstate

Video thumbnail for Rossum Electro-Music Linnaeus Thru-Zero State Variable Filter Internal Ping Mode Demo by Rossum Electro-Music

Rossum Electro-Music Linnaeus Thru-Zero State Variable Filter Internal Ping Mode Demo

Rossum Electro-Music

Rossum Electro-Music

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Rossum Electro-Music Linnaeus Eurorack Thru-Zero State-Variable Filter.

Features and functionality

  • The Linnaeus filter offers a unique cutoff frequency control that varies smoothly through many filter shapes, allowing complex filter panning by offsetting per channel.

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  • The module includes attenuation for all CV inputs, making it versatile for various sound design applications and allowing it to handle extensive CV modulation.

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  • The Linnaeus provides thru-zero modulation, ensuring it stays in tune regardless of modulation depth, a feature highlighted by several users.

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  • Unlike other filters, the Linnaeus allows for extensive control over the stereo field by being state-variable independently on both channels.

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Build quality

  • The potentiometers are noted for their high resistance and hefty feel, though they are somewhat tightly spaced, which can be challenging for some users.

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Mods and upgrades

  • Owners suggest replacing the knobs for better usability due to their tight spacing and high turning resistance.

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Use cases and applications

  • The built-in mod oscillator is praised for creating complex formant-type sounds, with smoothly interpolated waveforms and modulateable controls for intensity and frequency.

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  • It's noted for its ability to create both standard sounds and unique timbres, making it versatile for various sound design needs.

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Comparisons

  • While the Linnaeus excels in sound design complexity, it lacks the rich, fat analog filter sound found in models like the C4BN or Ikarie.

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  • Owners mention that the Linnaeus filter can achieve sounds similar to the QPAS but offers more control over the stereo field due to its state-variable design.

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User experience

  • Users report an extreme resonance capability, enhancing its utility for creating diverse filter sounds, although it doesn't self-resonate.

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  • Users who have tried the Linnaeus in different environments report that videos don't fully capture its capabilities, implying a need for hands-on experience to appreciate its potential.

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Critic Reviews

Superbooth 2019: Rossum-Electro Linnaeus Thru-Zero State-Variable Filter - gearnews.com

gearnews.com

Rossum Electro-Music's Linnaeus filter offers an intriguing blend of features with its thru-zero state-variable capabilities and extensive modulation options. The editor highlights its solid construction and the flexibility of its response characteristics, making it a compelling choice for sound manipulation. However, the complexity of its functionalities may overwhelm some users, leaving a desire for clearer demonstrations. Overall, while the Linnaeus promises a wealth of sonic possibilities, it could benefit from simpler user engagement.

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