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Sound Processing

The sound processing category includes modules that modify incoming audio signals. It features classic components like filters, as well as resonators or ring modulators. Whether legendary designs from Cwejman, experimental circuits from Rossum, or simply good modules from Doepfer—the choice is truly extensive. The wide range of possibilities for connecting individual components—whether for audio or control signals—enables unique results when using modular systems.
Filter products
Joranalogue Audio Design-Joranalogue - Filter 8 180308_1
Filter 8
Joranalogue Audio Design
Filter 8 is a fully voltage-controllable OTA multimode circuit, which can also be used as an eight-phase sine oscillator, a VC-LFO or a percussion voice

€295.00

In stock

Net: €247.90
Doepfer Musikelektronik GmbH-Doepfer A-123-2 Multimode-Highpass 180278_1
A-123-2 6/12/18/24 dB Highpass
Doepfer
The A-123-2 is an analog high-pass filter with four outputs for slopes ranging from -6 dB to -24 dB per octave. It is based on the special IC CEM3320/AS3320 and delivers both clean and distorted sounds. Cutoff frequency and resonance are voltage controlla […]

€115.00

In stock

Net: €96.64
Doepfer Musikelektronik GmbH-Doepfer A-105-4 Quad Poly VCF 180277_1
A-105-4 Quad Poly VCF
Doepfer
The A-105-4 is a quad filter for polyphonic patches. It is based on the SSM2044 / SSI2144 chip, meaning the same component used in Korg Polysix, Mono/Poly, Fairlight II, PPG Wave, Emu SP-1200 and many other classic synthesizers. The filter has a very rich […]

€224.00

In stock

Net: €188.24
North Coast Synthesis -North Coast Synthesis - MSK 007 Leapfrog VCF Showroom 180164_1
MSK 007 Leapfrog VCF
North Coast Synthesis
The MSK 007 Leapfrog VCF is not your average low-pass with a transistor ladder or sallen key topology. Instead, it was based on an elliptic filter design. The module’s cutoff slope is uneven and has an edge steepness of at least -61 dB per octave

€380.00

Currently unavailable

Net: €319.33
Details
Cwejman Music -Cwejman MMF-1S (Eggshell) 160001_1
MMF-1S (Eggshell)
Cwejman Music
For many, THE filter in the Eurorack universe: Cwejman's MMF-1S combines various filter types with saturation, VCA, and a compressor!

€958.00

Out of Stock

Net: €805.04
Details
AJH Synth-AJH Synth - Gemini 2412 Dual SVF - SILVER 180103_1
Gemini 2412 Dual SVF (silver)
AJH Synth
The Gemini 2412 is a smooth and fat sounding dual filter based on the circuits of Oberheim’s SEM. In addition to high-pass, band-pass and low-pass, the module features a variable mode, which allows you to crossfade between several filter types.
Color

from €459.00

In stock

Net: €385.71
Meng Qi Music-Meng Qi - DPLPG (Dual Passive Low Pass Gate) 180061_1
DPLPG (Dual Passive Low Pass Gate)
Meng Qi Music
The DPLPG combines two passive low-pass gates with -6 dB slope on 2 HP width

€70.00

In stock

Net: €58.82
Flame-Flame - Curves (Silver) 180056_1
Curves
Flame
Curves is an analog filter bank with twelve bands. Thanks to a built-in pattern generator, the channels can be played rhythmically. – Including variations. The module features a variety of sequences. You can create your own patterns using a free software […]

€769.00

In stock

Net: €646.22
ALM Busy Circuits-ALM Busy Circuits - Mum M8 180019_1
Mum M8
ALM Busy Circuits
Mum M8 is a low-pass with distinctive sound. It was modelled after the filter circuit known from the Akai S950 sampler. Compared to the original, the module offers various enhancements, including a resonance parameter, several CV inputs and an integrated […]

€229.00

In stock

Net: €192.44
Frap Tools -Frap Tools - Fumana Dual Spectral Editor 180011_1
Fumana Dual Spectral Editor
Frap Tools
Fumana is a fully analog, voltage controllable filter bank with two channels, each featuring an array of 16 bandpass circuits. The module is specialized in spectral effects. One channel comes equipped with an envelope follower per band. – Perfect for anal […]

€949.00

In stock

Net: €797.48
Rabid Elephant-Rabid Elephant - Natural Gate_170311_
Natural Gate
Rabid Elephant
A top range low-pass gate – Natural Gate is a dual LPG with exceptional sound design capabilities. Users can choose between three material characteristics. Each of them responds differently to excitation signals

€558.00

In stock

Net: €468.91
ACL-ACL - Discrete Core Ladder VCF 170292_1
Discrete Core Ladder VCF
ACL
Advanced low-pass design – The Discrete Core Ladder VCF shines with crisp sound, a very low noise-floor and a multitude of technical gimmicks. The module features a three-channel input mixer with saturation capabilities.

€478.00

Out of Stock

Net: €401.68
Details
Snazzy FX-Snazzy FX - Eternal Spring 170272_1
Eternal Spring
Snazzy FX
Eternal Spring is a low-pass filter with personality. Depending on its drive and resonance settings, the circuit can add a little bit of saturation, a good amount of dirt or heavy distortion to incoming audio material. Occasionally, users will feel remini […]

€179.00

Currently unavailable

Net: €150.42
Details
Vermona-Vermona - tVCF-Extension 170254_1
tVCF-Extension
Vermona
The tVCF-Extension adds separate outputs for high-pass, band-pass and low-pass circuits to the Vermona TwinVCFilter. On top of that, the module makes a notch characteristic accessible

€168.00

In stock

Net: €141.18
Erica Synths-Erica Synths - Black Polivoks VCF V2 170216_1
Black Polivoks VCF V2
Erica Synths
The Black Polivoks VCF V2 is an authentic clone of the multimode filter known from the Russian Formanta Polivoks synthesizer. It can be used as either a low-pass or band-pass circuit. Input level, cutoff frequency and resonance are adjustable via potentio […]

€198.00

In stock

Net: €166.39
Manhattan Analog-Manhattan Analog - Steiner Synthasystem VCF 170179_1
Steiner Synthasystem VCF
Manhattan Analog
The Steiner Synthasystem VCF is a multimode filter with powerful, clearly analog sound. It features high-pass, low-pass and an exceptionally crisp bandpass mode. The input level is adjustable. The cutoff potentiometer means business. For modulations, ther […]

€208.00

In stock

Net: €174.79
Vermona-Vermona - TwinVCFilter 170164_1
TwinVCFilter
Vermona
The TwinVCFilter is composed of two high-class multimode circuits, which can be used in a high pass, band pass or low pass mode. Thanks to routing and link options, it is possible to combine the filters in various ways

€419.00

In stock

Net: €352.10
Erica Synths-Erica Synths - Pico VCF1 160309_1
Pico VCF1
Erica Synths
The Erica Pico VCF1 is a compact version of the infamous Black Polivoks filter. Just like its big brother, the module uses rare op-amps made in Russia. The circuit can work as a low-pass or band-pass filter. In terms of sound, the Pico VCF1 is meaty and a […]

€99.00

In stock

Net: €83.19
Doepfer Musikelektronik GmbH-Doepfer A-121-2 (12dB Multimode Filter) 160082_1
A-121-2 12dB Multimode Filter
Doepfer
The concept of a multimode filter with individual outputs, voltage controllable resonance and a similar name is what this module has in common with the old A-121
Color

from €125.00

In stock

Net: €105.04
Doepfer Musikelektronik GmbH-Doepfer A-101-2 Vactrol Lowpass Gate 120070_1
A-101-2 Lowpass Gate
Doepfer
A classic function for organic sound in Eurorack synthesizers: the A-101-2 Vactrol Lowpass Gate from Doepfer
Color

from €99.00

In stock

Net: €83.19
Doepfer Musikelektronik GmbH-Doepfer A-101-1 Vactrol Steiner Filter 120069_1
A-101-1 Vactrol Steiner Filter
Doepfer
Vactrol-based multimode filter based on a schematic by Nyle Steiner. Separate inputs for lowpass, bandpass and highpass
Color

from €145.00

In stock

Net: €121.85
Xaoc Devices-XAOC Devices - Belgrad 160283_1
Belgrad
Xaoc Devices
The Belgrad is an analogue multimode filter with variable sound character and ten frequency responses. Thanks to its two resonance peaks, the module is capable of extraordinary results like formant sounds

€325.00

In stock

Net: €273.11
Verbos Electronics -Verbos Electronics - Bark Filter Processor 160281_1
Bark Filter Processor
Verbos Electronics
A voluminous, voltage controllable analog filter bank comprised of twelve filter bands with individual outputs for envelope followers and audio, individual level control and dynamic frequency band scanning. The envelope followers' speed is globally adjust […]

€965.00

Pre Order  

Net: €810.92
ADDAC Systems-ADDAC - 702 Dual VC Filter 160260_1
702 Dual VC Filter
ADDAC Systems
The 702, being inspired by the MS-20's filter section, is a variable filter consisting of a low pass and a high pass. The filters can be routed parallel or in series, used individually or in a coupled mode and even be mixed

€449.00

In stock

Net: €377.31
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