Showroom, consultation, sales, and workshops in Berlin: Mon, Tue, Thu, Fri 10 a.m.–6 p.m. Every first Saturday of the month 12 p.m.–6 p.m.
Check out our B-Stock and On-Sale pages for some nice offers!
Back in stock: Elta Music - Solar 42N // Broken Silicon - Gainsburg // Teaching Machines - Fuzzbillion
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Opening hours: Mon, Tue, Thu, Fri 10 a.m.–6 p.m.
Nice Prices: B-Stock / On-Sale
In stock: Elta Music - Solar 42N
Reliq Instruments Workshop 29. Jan. 7pm
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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

NEW STUFF
Tobinski - MML Filter 260007_1
MML Filter
Tobinski
The Tobinski MML filter is inspired by the classic Moog ladder filter, but has lowpass, bandpass and highpass modes in addition to CV options

€295.00

In stock

Net: €247.90
NEW STUFF
OUR PICK
Mehr Music Machines - Deuxd 251801_1
Deuxd
Mehr Music Machines
Mehr Music Machines Deuxd — Dual HP/LP Filters with Built-In Cross-Modulation and FM capabilities.

€299.00

In stock

Net: €251.26
NEW STUFF
OUR PICK
Hieroglyphic - Opalina (Silver) 251708_1
Opalina (Silver)
Hieroglyphic
Hieroglyphic Opalina – Analog Stereo State-Variable Filter Network with Resonator and Isolator Modes
Frontplattenfarbe

€335.00

In stock

Net: €281.51
OUR PICK
NEW STUFF
Steady State Fate (SSF) - Steady State Gate Stereo Field 251596_1
SSG Stereo Field
Steady State Fate
SSF's Steady State Gate Stereo Field – a True Stereo Low-Pass Gate With Advanced Spatial Processing and a Whole Lot of Character!

€379.00

Available shortly  

Net: €318.49
Cwejman - QMMF 4 (matte black) 251582_1
QMMF 4 (Matte Black)
Cwejman Music
The Cwejman QMMF-4 is the big—sorry, huge—brother of the magnificent RES-4 and surpasses its concept by far

€1,799.00

Out of Stock

Net: €1,511.76
Details
HOT SHIT
NEW STUFF
Apollo View - Vamp 251571_1
Vamp
Apollo View
Apollo View VAMP — Tube-Driven Multi-Mode Filter in 8HP

€319.00

In stock

Net: €268.07
HOT SHIT
NEW STUFF
Make Noise - QXG 251521_1
QXG
Make Noise
The Stereo Low Pass Gate of the New Universal Synthesizer System. QXG delivers 4 channels of vactrol-free vactrol-fun in the Make Noise style!

€245.00

Available shortly 16 March 2026

Net: €205.88
B-STOCK
Tiptop Audio - Z-2040 Lowpass (White) (B-stock) 251491_4
Z-2040 Lowpass (White) (B-Stock)
Tiptop Audio
The Z2040 is a discrete clone of the Prophet 5`s low pass filter with come additonal features like voltage controlled gain and resonance. The gain parameter allows for overdriving the filter

€175.00 €209.00  

In stock

Net: €147.06
Cwejman DFA-2 (Eggshell) 251379_1
DFA-2 (Eggshell)
Cwejman Music
The last design from Wowa! The DFA-2 is a dual filter and VCA combination, in the usual high Cwejman quality

€890.00

In stock

Net: €747.90
ALM Busy Circuits - Pip Filter 251367_1
Pip Filter
ALM Busy Circuits
ALM Busy Circuits Pip Filter – Pingable 2-Pole Low-Pass and VCA

€134.00

Available shortly  

Net: €112.61
Black Noise Modular - Sallen-Key 251330_1
Sallen-Key
Black Noise Modular
Sallen-Key is Black Noise Modulars take on the classic MS-20 filter design

€139.00

In stock

Net: €116.81
AJH Synth - Matrix VCF (Silver) 251304_1
Matrix VCF (Silver)
AJH Synth
AJH Synth Matrix VCF - Filter Madness In Compact Form Inspired by the Oberheim Matrix 12
Frontplattenfarbe

€389.00

In stock

Net: €326.89
XAOC Devices - Arad (Expander for Oradea) 251302_1
Arad (Expander for Oradea)
Xaoc Devices
Xaoc Devices’ Arad — Expander Module for the Oradea Quadruple Resonator

€119.00

In stock

Net: €100.00
XAOC Devices - Oradea 251301_1
Oradea
Xaoc Devices
Xaoc Devices Oradea - Quadruple Analog Resonator Magic

€519.00

In stock

Net: €436.13
Weston Precision Audio - SF1 Dual/Stereo Filter (2025) 251207_1
SF1 Dual/Stereo Filter (2025)
Weston Precision Audio
Weston Precision Audio's SF1 is a dual filter whose main attraction is not just a serial or parallel connection

€379.00

In stock

Net: €318.49
Cwejman RES-4 (Eggshell) 120448_1
RES-4 (Eggshell)
Cwejman Music
A legend! The RES-4 is a combination of 4 resonant filters. An inspiring Tool made in Cwejman high quality

€1,060.00

In stock

Net: €890.76
OUR PICK
Euterpe - Itinera 251145_1
Itinera
Euterpe Synthesizer Laboratories
Euterpe Itinera offers saturation, distortion, multimode filter, changeable resonance paths and feedback functions

€689.00

In stock

Net: €578.99
Tiptop Audio - Octopass (ART) 251123_1
Octopass (ART)
Tiptop Audio
The Octopass by Tiptop Audio delivers the coveted sound of classic synthesizers through eight channels of professional 24dB/octave low-pass filtering based on the renowned 2044 chip

€449.00

In stock

Net: €377.31
Tobinski - Dual LPG/VCA 251104_1
Dual LPG/VCA
Tobinski
Tobinski Dual LPG/VCA - brings together Buchla and Moog designs

€249.00

In stock

Net: €209.24
SALE
OUR PICK
Tiptop Audio - Buchla Quad Lopass Gate Model 292t 251067_1
Buchla Quad Lopass Gate Model 292t
Tiptop Audio
This is one of those modules you're happy to wait for - because you know it's worth it

€348.00 €399.00  

In stock

Net: €292.44
Alfa Delta - Metamorf 251054_1
Metamorf
Alfa Delta V.O.F.
Mathematical Filter Galore - Alfa Delta's Metamorph Digital Filter Matrix. Serious, Pro-Level Module for those who want to explore and shape novel sounds!

€729.00

In stock

Net: €612.61
Noise Engineering - Fala Versio 240715_1
Fala Versio
Noise Engineering
Speaking in Filters — Noise Engineering's Fala Versio

€469.00

In stock

Net: €394.12
Nekyia Circuits - Sosumi 240700_1
Sosumi
Nekyia Circuits
Nekyia Circuits' Sosumi — Dual Low Pass Gate with Character

€159.00

In stock

Net: €133.61
Nekyia Circuits - Root Locus 240698_1
Root Locus
Nekyia Circuits
Neykia Circuits' Root Locus - Serge-Inspired Multimode Filter Enhanced With Modern Extras

€229.00

In stock

Net: €192.44
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