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Synth modules

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4ms Listen Four Quarters 4 Channel Stereo Mixer Module
Cat: 717581 Rel: 06 Feb 19
 
Four channel stereo mixer with balanced 1/4-inch & headphone out - 12HP
Notes: The Listen Four Quarters is a four channel stereo mixer with 1/4" (6.35mm) TRS balanced outputs and 1/8" (3.5mm) headphones output. Two mono channels with Pan knobs and two stereo channels with dual inputs provide optimal compatibility with both stereo and mono signals. The Listen Four Quarters can be daisy-chained to other Listen modules to create a larger mixer with sub-mix outputs.
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MRP:$259.55 SAVE 21%
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4ms Wav Recorder Module
4ms Wav Recorder Module (synth module)
Cat: 648950 Rel: 29 Jun 18
 
6HP Eurorack module for recording high-fidelity, low-noise stereo WAV files
Notes: The WAV Recorder from 4ms Company is a high fidelity, two-channel stereo audio recorder with basic playback features. Accepting a wide range of input signals, from line-level to modular-level, the WAV Recorder stores audio onto a microSD card in lossless .wav format up to 96kHz/24-bit. The trigger jack can be used for capturing rhythmic loops or synchronizing multiple WAV Recorder modules for multi-track recording. In Playback mode, the trigger jack or button plays the most recent recording. A simple file/folder navigation system can be used to browse the folders on the card for playing back .wav files. A Gain knob allows for up to +20dB of boost, and an LED Signal Meter indicates clipping and the signal level.
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MRP:$332.93 SAVE 24%
 1 in stock $253.67
Abstract Data ADE33 Event Boss Pattern & Rhythm Generator Module
Cat: 601494 Rel: 28 Mar 18
 
Sophisticated rhythm creation & manipulation module - 14HP
Notes: Pattern and rhythm creation and manipulation module for creating musically useful rhythms and patterns from a variety of inputs - it's a module that will jam along with you.

36 algorithms in 6 sets covering Variables, Multiples, Probability, Logic, Phase and Gates with configurable CV control over all parameters.

Takes regular clocks and generates rhythmic patterns, takes rhythmic patterns and generates new patterns, takes irregular and random patterns and generates new, irregular and probability-based patterns.

The patterns can be rhythmic, continually evolving or entirely random and can be controlled and manipulated via multiple CV options.

Can also be used as a utility module to perform Clock Division/Multiplication, Phase-Shifting and Logic-related tasks.
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 4 in stock $209.50
FORTHCOMING
Acid Rain Technology Chainsaw Digital Oscillator Module
Cat: 804567 Rel: 25 Jan 21
 
Digital/dual & stereo/oscillator module
Notes: Chainsaw is a powerful digital oscillator designed to bring polyphony to your rack in a compact and playable interface. We were inspired by the super-saw; a mainstay of electronic music production, and a waveform rich with harmonics for filters and effects to chew on. Chainsaw features 3 voices of 7 waves, with individual pitch control per voice. All waves morph from super saw to super square for giant hollow basslines and more.

Details:

4hp

35mm deep

110 mA on +12V, 10 mA on -12V, 0 mA on +5V
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MRP:$320.70 SAVE 17%
coming soon $267.24
ACL Mini MIDI USB MIDI To CV Converter Module
Cat: 776679 Rel: 06 Aug 20
 
MIDI to CV converter module
Notes: Compact solution for converting MIDI signals to Eurorack-friendly CV. USB in from hardware devices or a host DAW. Pitch, gate, clock, start/stop and CC outputs. Simple but effective.

Supplier notes:
The ACL MINI MIDI is a USB MIDI to CV convertor module in a small module.

It uses MIDI CLOCK, START/STOP, one selectable MIDI Controller and a monophonic MIDI Note to be converted to Eurorack compatible CV, GATE and clock signals.

It can be used as USB MIDI to CV interface by connecting to your computer via the USB B port. A Class Compliant USB MIDI device can be connected to the USB A port.
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MRP:$365.54 SAVE 23%
 2 in stock $281.52
ACL Pan Mix Mixer Module
ACL Pan Mix Mixer Module (synth module)
Cat: 776671 Rel: 30 Jun 20
 
mixer module
Notes: The ACL Pan Mix module mixes up to four different mono sources into a stereo output with panorama and gain control. It also includes an stereo aux input, which will be added unity gain to the sum for cascading purposes.
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MRP:$274.50 SAVE 26%
 2 in stock $202.71
ADDAC System ADDAC204 VC CV Mapping Module (red faceplate)
Cat: 776178 Rel: 08 Sep 20
 
CV mapping module
Notes: With the VC mapping module you'll be able to scale your voltage and also control its offset via CV.

This module provides two outputs for normal and inverted output voltages. A third output morphs between the normal and inverted outputs.

Mechanical:
. Format: Eurorack
. Width: 6 HP
. Depth: 2 cm

Control Voltage I/O:
. CV inputs: i 10v
. CV outputs: i 10v

Electrical:
. Compatible with +-12v and +-15v power supplies?
. Max current: 40mA
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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 1 in stock $211.76
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ADDAC System ADDAC302 Nchunk Control Module (red faceplate)
Cat: 776295 Rel: 08 Sep 20
 
Control module
Notes: The ADDAC302 Nchunk Control module allows you to connect a Nintendo Nunchuck controller to your modular synth, featuring a two-axis thumb joystick, a three-axis accelerometer and two trigger buttons.

The module provides CV outputs for all of the Nunchuck's parameters and special functions to remap the CV outputs. The remapping can be both continuous or step-by-step and can be accessed through either the dedicated CV inputs or the manual controls.

A specially dedicated Mix output averages between the first two CV outputs, a very useful feature for continuous control parameters.

Mechanical:
- Format: Eurorack
- Width: 8 HP
- Depth: 4 cm

Control Voltage I/O:
- CV inputs: 0 - 10v
- CV outputs: 0 - 5v
- Gate in threshold: 2.5v

Electrical:
- Compatible with +-12v and +-15v power supplies
. Max current: 100mA?
. Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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 1 in stock $293.29
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ADDAC System ADDAC303 Muscle Sensing module (red faceplate)
Cat: 776297 Rel: 08 Sep 20
 
Muscle sensing module
Notes: This module introduces a totally new interaction principle for the Eurorack format, using electrodes to sense body muscles tension.

You can stick them to your arm and clench your fist, to your leg and tap your tempo, to your band bass player or drummer.

Module ships with electrodes.

Pads are reusable and replaceable.

Specs:
- Width: 4 HP
- Depth: 4 cm
- Max current: 60mA
- Bus Board Cable: 8 × 2 IDC (Doepfer style) connector
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ADDAC System ADDAC405 VC Relabi Generator Module
Cat: 797099 Rel: 17 Dec 20
 
Clock generator/clock modulator/LFO/quad/comparator synth module
Notes: Complex gate and CV generator designed as a trigger source and modulation tool. Based around four sine wave LFOs that mix together and interact to create ever-changing patterns.

Supplier's Notes:
In 2009 John Berndt coined and defined the term Relabi in his essay "Relabi": Patterns of Self-Erasing Pulse, these are his own words: "Relabi, Def.: The experience of a palpably coordinated plurality of events that appears to be cyclical but simultaneously suspends identification of a uniform pattern, preventing a resolved sense of pulse. Relabi therefore seems equally pulsed and unpulsed at the same time. It is an experiential gestalt, a quality of experience, greater than the sum of its parts (it forms a sustained unity in experience, albeit of a new kind)."

He also makes the question: "Why would anyone want this Relabi experience? I maintain that much of what is exciting in musical forms involves an interplay between the setting up and denying of pulse expectations."

Inspired by this idea, ADDAC System developed this module that is both a gate/trigger and cv generator that can be freely used to trigger events or act as a complex modulation source. Four Sine LFOs are internally generated, each has controls for gain, frequency and mute(off). These 4 LFOs are then mixed together to generate what Berndt named the "Relabi Wave" this "wave" becomes a complex bipolar CV source. This i5v bipolar "wave" can be monitored on the 2 dedicated leds and is also available at its own Output.

Make sure to check the User's Guide for indepth description, working behaviour and diagrams.

Tech Specs:
10HP
4cm deep
100mA +12V
40mA -12V
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MRP:$362.83 SAVE 20%
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ADDAC System ADDAC604 Dual Filter Module (black faceplate)
Cat: 776353 Rel: 08 Sep 20
 
Dual filter module
Notes: Really nice stuff here. The filter circuit from ADDAC's 4 Voice Cluster module gets reimagined as a multi-mode stereo or dual mono filter module. A lot of filter action in just 6hp.

Supplier's Notes:

While developing the ADDAC105 4 Voice Cluster module, a new multimode filter to place after the summing mix stage- and the results were so postitive that it was released as a dedicated filter.

To make it more interesting, the circuitry was duplicated, to be able to use it in a stereo signal path.

To make it more versatile, a switch was added to set the working mode from Stereo to Dual Mono where both filters can be used independently.

In Stereo Mode the Left Cutoff is used to control the Right Cutoff.
In this case the Right Cutoff Knob and CV Input are simply bypassed and will have no impact on the Right Channel operation.
This allows immediate sync of both filter frequencies when the Stereo position is engaged.
Optionally there's a jumper in it's back that, when placed, connects the Right Controls back to the Right CV control allowing the possibility to control the offset of the Right Channel Cutoff.

Resonance is independent on both Modes and still has to be set manually to match both channels.

Both the Audio and CV inputs are normalled from the Left into the Right channels.
As standard plugging any input to the Right channels removes this connection.

Tech Specs:
6HP
4 cm deep
70mA +12V
70mA -12V
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 2 in stock $212.90
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ADDAC System ADDAC703 Discrete Mixer Module (black faceplate)
Cat: 776360 Rel: 08 Sep 20
 
Mixer module
Notes: Here's the second module of ADDAC System's 700's Heritage Series.

Inspired by Moog CP3 mixer, this is a totally discrete analog mixer and it's not, by any means, your standard breakfast mixer, although it can behave like one.

This is a wolf in sheep's clothing. Despite its harmless looks there's a dark snarly soul behind that panel that wants to take your sounds into a realm of gritty gnarly growls.

Mechanical:
- Format: Eurorack
- Width: 8 HP
- Depth: 3 cm

Electrical:
- Max current: 60mA.
- Bus Board Cable: 8 × 2 IDC (Doepfer style) connector.

Included:
- black screws
- black fibre washers
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ADDAC System ADDAC705 Stinggy Filter Module (black faceplate)
Cat: 776386 Rel: 08 Sep 20
 
Filter module
Notes: The new ADDAC System filter, inspired by the original WASP Filter.

Mechanical:
- Format: Eurorack
- Width: 8 HP
- Depth: 3 cm

Electrical:
- Max current: +12V 60mA, -12V 30mA.
- Bus Board Cable: 8 × 2 IDC (Doepfer style) connector.

Included:
- black screws
- black fibre washers

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 1 in stock $258.18
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After Later Audio Atom 18HP Elements Redesign Module
Cat: 805274 Rel: 14 Jan 21
 
Modal synthesiser
Notes: This is a new build of a micro Mutable Instruments Elements. It features jack lights that can be turned on/off via a jumper on the back. This module comes loaded with the most recent firmware, with the new Chords mode that unlocks a whole new world of potential.

These modules use tall bushing potentiometers to offer a more stable feel. You can see the difference in the last picture. You will feel much less wiggle with the tall bushing (left) than with traditional trimmer style (right).

The module is fully assembled, tested, and calibrated. Eurorack power cable is included.
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MRP:$271.78 SAVE 17%
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FORTHCOMING
After Later Audio Beehive Plaits 8HP Redesign Module
Cat: 805370 Rel: 01 Feb 21
 
Macro oscillator module
Notes: Functionally identical clone of the Mutable Instruments Plaits. Beehive strikes a nice balance between size, reducing 12hp down to 8hp, and playability by offering full size knobs for the four main functions. Beehive also retains the same depth of the original module at 25mm. This module uses After Later's new aluminum knobs which have a nice non-slip texture and allow for more finger space over the standard 1900H Davies knobs.
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MRP:$252.76 SAVE 20%
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After Later Audio Bog Module
Cat: 805027 Rel: 14 Jan 21
 
Random CV generator/audio module
Notes: An 8HP redesign of the Erica Synths Swamp module which was originally inspired by the famous Wiard Wogglebug module. Bog has moved the smooth range switch to the front panel and added an input for the S&H circuit (commonly called the Heart input).
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After Later Audio Cara 10HP Micro Marbles Redesign Module
Cat: 805377 Rel: 14 Jan 21
 
Random sampler module/rebuild of Mutable Instruments Marbles
Notes: Cara (uMarbles)

This is a new build of a micro version of Mutable Instruments Marbles. It retains all the functionality of the original full-sized module but takes up less space. It comes with jack lights that can be disabled via a jumper on the back.

These modules use tall bushing potentiometers to offer a more stable feel. You can see the difference in the last picture. You will feel much less wiggle with the tall bushing (left) than with traditional trimmer style (right).

The module is fully assembled, tested, and calibrated. The calibration is done with a 6.5 digit multimeter, itself recently calibrated, to ensure you get the highest accuracy from your module. Eurorack power cable included.

Width: 10HP
Depth: 34mm
Height: 3U
Power Consumption: +12V: 80mA -12V: 20mA
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MRP:$300.32 SAVE 17%
 2 in stock $250.26
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After Later Audio Knit 6HP Plaits Redesign Module
Cat: 805451 Rel: 14 Jan 21
 
Micro sized macro oscillator module
Notes: This is a new build of a micro sized Mutable Instruments Plaits called Knit.

These modules use tall bushing potentiometers to offer a more stable feel.

The module is fully assembled, tested, and calibrated. Eurorack power cable is included.

Width: 6HP
Depth: 25mm
Height: 3U
Power Consumption: 12V: 50mA -12V: 5mA
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After Later Audio Monsoon 12HP Clouds Redesign Module
Cat: 805454 Rel: 14 Jan 21
 
Texture analogue synthesiser
Notes: This is a new build of a Monsoon, which is a variation of Mutable Instruments Clouds with separate CV and controls for the 4 "blend" functions. The 4 LEDs on the sliders indicate incoming control voltage for the 4 main parameters. The button which was used to select blend parameters now simply switches what the 4 LEDs display (audio input monitoring or monitoring the 4 blend amounts.) Parasites 2.01 firmware is loaded by default. Alternative firmware can be loaded by request.

The module is fully assembled, tested, and calibrated. Eurorack power cable is included.

Width: 12HP
Depth: 22mm
Height: 3U
Power Consumption: +12V:120mA -12V:10mA
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MRP:$270.42 SAVE 17%
 3 in stock $225.35
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After Later Audio Pachinko 12HP Micro Marbles Redesign Module
Cat: 805525 Rel: 14 Jan 21
 
Random sampler module/rebuild of Mutable Instruments Marbles
Notes: This is a brand new build of a JakPlugg designed Pachinko, which is a micro version of Mutable Instruments Marbles. It retains all of the functionality of the original but takes up less space (12HP) than the original Marbles (18HP).

The module is fully assembled, tested, and calibrated. The calibration is done with a 6.5 digit multimeter, itself recently calibrated, to ensure you get the highest accuracy from your module.

The panel is a custom black After Later Audio panel that offers metallic gold accents.

The module comes with a power cable and a 1 year warranty.
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MRP:$288.09 SAVE 17%
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After Later Audio Popple Stereo Multimode Filter Module
Cat: 805174 Rel: 14 Jan 21
 
Stereo multimode filter module
Notes: Popple is an 8hp multimode stereo filter based on the Mutable Instruments Ripples V1 filter section. Popple maintains the buttery smoothness of Ripples filter while giving you two separate audio paths. The audio paths share a resonance, control, a frequency cutoff control, resonance CV input, and a v/oct cutoff CV input. Each channel then has it’s own cutoff CV input with attenuverters (which are normalled to a 2.5V signal).

Popple will also self-oscillate at high resonance settings, when coupled with the v/oct CV control, it can also act as a dual sine wave oscillator.
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MRP:$240.53 SAVE 13%
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After Later Audio Rainier Module
Cat: 805025 Rel: 14 Jan 21
 
ADSR-style evnvelope generator/LFO/drum module
Notes: An 8HP version of Mutable Instruments Peaks that adds CV inputs and attenuverters for each of the four parameters and adds attenuverters for each of the outputs.

It can be an ADSR-style envelope generator, an LFO and a drum emulator.

Additional Dead Man's Catch firmware modes:

Basic (original modes):
Envelope
LFO
Tap LFO
Bass/Snare Drums

Alternative ENV:
Double attack envelope
Repeating attack envelope
Looping envelope
Randomized AD envelope
Bouncing ball envelope

Alternative LFO:
Frequency-modulated LFO (folded sine FM)
Frequency-modulated LFO (random FM)
Varying wave shape LFO ( folded sine WS mod)
Varying wave shape LFO ( random WS mod)
Phase-locked loop oscillator

Alternative TAP Mini-sequencer
ModSequencer
Pulse Shaper
Pulse Randomizer
Turing Machine
Bytebeats

Alternative DRUM
FM drum Generators
Randomized bass and snare drum generators
Randomized high hat
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MRP:$240.53 SAVE 16%
 1 in stock $201.57
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After Later Audio Typhoon 16HP Clouds Redesign Module
Cat: 805536 Rel: 14 Jan 21
 
Analogue texture synthesiser/rebuild of Mutable Instruments Clouds
Notes: This is where Storm and Monsoon meet to create the latest improvements on the original Clouds design. With Typhoon you get all of the features of Storm combined with sliders and layout of Monsoon in 16hp. Typhoon runs the SuperParasites firmware, so no more having to swap between Parasites and Kammerl firmware options. Some of the notable features are:

Dedicated blend controls for Feedback, Panning, Mix, and Reverb (similar to Monsoon)

All eight modes from Parasites and Kammerl

Stereo VCAs

input/output mutes

Exponential and linear pitch controls

Universal CV routing and random CV signals

Comes with an exclusive black and gold panel, power cable and one year warranty.
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MRP:$312.55 SAVE 17%
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After Later Audio uO_C 8HP Ornament & Crime Redesign Module
Cat: 805541 Rel: 14 Jan 21
 
CV generator nmodule/rebuild of Ornament & Crime
Notes: uO_C

This is a new build of Micro Ornament & Crime, a variant of the popular Ornament & Crime designed by mxmxmx. The firmware is Stock by default.

The module is fully assembled, tested, and calibrated. The calibration is done with a 6.5 digit multimeter, itself recently calibrated, to ensure you get the highest accuracy from your module. Eurorack power cable included.
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MRP:$275.86 SAVE 18%
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After Later Audio uTides V2 8HP Micro Tides2 Redesign Module
Cat: 805549 Rel: 14 Jan 21
 
Tidal modulator module/rebuild of Mutable Instruments Tides V2
Notes: uTides v2

uTides is a micro version (8HP) of the Mutable Instruments Tides v2/2018. It retains all of the original functionality of the full size version, both software and hardware. Its core is a triangle function generator and waveshaper that can be used as an LFO, oscillator, AD-style envelope generator (EG), and AR-style EG. Tons of utility nicely packed into 8HP.

The module is calibrated, comes with a power cable, and a one year warranty.
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AION Modular 904A Voltage Controlled Low Pass Filter Module
Cat: 780153 Rel: 08 Jul 20
 
Voltage controlled low pass filter module
Notes: The AION Modular 904A Low Pass filter is an Eurorack clone of the classic Moog Modular Low Pass filter (should not be confused with the Mini Moog Low Pass filter).

The 904A Low Pass filter attenuates frequencies above the Fixed Control Voltage (cutoff frequency) point at a rate of 24dB per octave. The cutoff frequency is voltage controlled through the three control inputs at the bottom of the module (1v per octave).

The Regeneration knob (resonance) varies the amount of internal feedback, creating a resonant peak at the cutoff frequency.
The Fixed Controlled Voltage knob adjustes frequency over 12 octaves span (1v per octave).

The Frequency Range switch:
(sets the frequency band in two-octave steps)
1- 1Hz to 5kHz
2- 4Hz to 20kHz
3- 16Hz to 80kHz

Specifications:
Power: +12 40mA, -12 25mA
Depth: 40mm
Doepfer compatible

40 mA +12V
25 mA -12V
0 mA 5V
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MRP:$343.80 SAVE 20%
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AION Modular 904B Voltage Controlled High Pass Filter Module (B-STOCK)
Cat: 808303 Rel: 18 Nov 20
 
B-STOCK: Box damaged, product unused & in perfect condition
Notes: ***B-STOCK: Box damaged, product unused & in perfect condition***


Premium sound quality from this premium module, based on the classic Moog high-pass filter. Steep 24dB/oct filter curve with precise CV-controlled cutoff frequency tracking over a 12-octave span.

Supplier's Notes:
The AION Modular 904B High Pass filter is an Eurorack clone of the classic Moog Modular High Pass filter.
The 904B High Pass Filter attenuates frequencies below the Fixed Control Voltage(cutoff frequency) point at a rate of 24dB per octave.

The cutoff frequency is voltage controlled through the three control inputs at the bottom of the module (1v per octave).

The Fixed Controlled Voltage knob adjustes frequency over 12 octaves span (1v per octave).

The Frequency Range switch:
LOW- 4Hz to 20kHz
HIGH- 10Hz to 50kHz

Specifications:
Power: +12 60mA, -12 50mA
Depth: 40mm
Doepfer compatible.

60 mA +12V
50 mA -12V
0 mA 5V
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 1 in stock $253.33
AION Modular 905 Reverberation Unit Module
Cat: 780111 Rel: 07 Jul 20
 
Reverberation module
Notes: When a dynamically varying signal is applied to the input of the 905, the output will consist of a series of closely spaced echoes, the subjective effect of which is similar to that of reverberation of sound. If a small amount of "echo signal" is mixed with a larger amount of "direct signal" (Reverberation Control set slightly clockwise), the effect of a typical concert hall is obtained. If the echo signal only is passed (Reverberation Control is set fully clockwise), an exaggerated echo suggesting a cave is obtained. The relative amount of echo signal and direct signal can be continuously changed from 100% direct signal to 100% echo signal.

Specifications:
Power: +12 (25mA), -12 (25mA)
Depth: 40 mm
Doepfer compatible
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AION Modular 907A Fixed Filter Bank Module
Cat: 780134 Rel: 08 Jul 20
 
Filter bank module
Notes: The 907A Fixed Filter Bank is a non-voltage controlled modifier which emphasizes or reduces the gain of the center frequency bands indicated on each of the eight center pots, in addition to the cut-off points from low pass and high pass filters at either frequency extreme. A total of 10 overlapping filter networks are included.

Specifications:
Power: +12 (30mA), -12 (15mA)
Depth: 20mm
Doepfer compatible.
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MRP:$500.08 SAVE 40%
 1 in stock $298.05
AION Modular 911 Envelope Generator Module
Cat: 780140 Rel: 07 Jul 20
 
Envelope generator module
Notes: The AION MODULAR 911 Envelope Generator is an Eurorack clone of the classic Moog™ Modular 911.

The 911 Envelope Generator (ADSR) generates the Control Voltage contours required for producing envelopes in conjunction with a voltage-controlled amplifier or a voltage-controlled Filter.

Attack time (T1), Decay time (T2), and Release time (T3) are all independently variable over a 2 millisecond - 10 second range, making the module suitable for very fast percussive sounds or long and evolving sounds.

The 911 Envelope Generator can be triggered by an external gate signal via the Trigger Input or manually by a push button.

Specifications:
Power: +12 (30mA), -12 (15mA)
Depth: 20mm
Doepfer compatible
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AION Modular 912 Envelope Follower Module
Cat: 780115 Rel: 08 Jul 20
 
Envelope follower module
Notes: The Envelope Follower produces two functions which can be used separately or in conjunction. The follower circuit Signal Input presents a control voltage output (DC) proportional to the average amplitude of the AC input signal. The second function, a Schmitt trigger, generates a V-trigger above a threshold voltage (comparator), when a slowly varying or DC voltage is introduced at the control input jack. The normalling of the control input of the follower circuit to the control input of the Schmitt trigger circuit allows both control voltage and trigger to be generated from a single variable source.

Specifications:
Power: +12 (40mA), -12 (8mA)
Depth: 40mm
Doepfer compatible
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AION Modular 921 Voltage Controlled Oscillator Module
Cat: 780149 Rel: 07 Jul 20
 
Voltage controlled oscillator module
Notes: The AION 921 VCO is a variable waveform generator which produces frequencies ranging from sub-audio (LFO) to 40.000 hz. Four waveforms are available: sine, triangular, sawtooth and rectangular (with variable duty cycle A.K.A. pulse width modulation).
Both fixed and variable levels can be obtained from the front panel output jacks. Nominal frequency and range controls (octave) are found at the top of the module.

Voltage controlled rectangular width (VC-PWM) is set by the knob in the upper center (left) with the accompanying voltage input jacks.
Multiple frequency control inputs 1 and 2 can be plugged into this module in parallel. Control input 3 is used via the pot for linear frequency response (Liniar FM). All waveform outputs can be used if desired.

This is what we consider an improved version of the Moog 921 VCO, not a direct clone. Improvements were made concerning tuning and stability issues.

Frequency range:
0.01 hz - 40.000 hz

Range switch:
sub audio - 0.01 - 400 hz
audio - 1 - 40.000 hz

Scale switch:
2 or 12 octave frequency span.

Auxiliary outputs:
2 jacks (one normal, one inverted) with selected waveforms (sine, triangle, sawtooth, inverted sawtooth rectangular and inverted rectangular).
Waveforms amplitude controllable from 0 to maximum.

Hard and Soft synchronisation selectable via a switch.
Synch must be "OFF" (center position) when synchronisation is not beeing used, otherwise it will sound out of tuning.

Specifications:
Depth: 40mm
Doepfer compatible.

30 mA +12V
30 mA -12V
0 mA 5V
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AION Modular 923 Noise & Filters Module
Cat: 780146 Rel: 07 Jul 20
 
Noise & filters module
Notes: The AION MODULAR 923 Noise/Filters is an Eurorack clone of the classic Moog Modular 923.

The 923 Noise/Filters module provides a white noise and a pink noise source along with a manual Lowpass and a 6dB Highpass filter.

The two manual sweep filters, are single pole circuits with a frequency cutoff slope of 6dB per octave and a frequency range of 10Hz to 10KHz.

Any kind of noise color can be achieved using the white noise and filters together.

Specifications:
Power: +12 (35mA), -12 (35mA)
Depth: 40mm
Doepfer compatible
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AION Modular CP3 Mixer Inputs Module With 2U-3U Adapters
Cat: 780123 Rel: 07 Jul 20
 
Mixer module
Notes: The CP3 module is a 4 x 1 mixer with positive and negative outputs and a maximum gain of two. This mixer can combine both AC and/or DC voltages. The module has a switch which, in the ON position, allows unwanted spikes to be removed from the waveforms. There is also a passive multiple.

Input Impedance: 25k ohms
Output Impedance: 100 ohms
S/N Ratios: better than 60dB
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AJH Synth Entropic Doom Voltage Controlled Noisillator Module (black)
Cat: 763098 Rel: 04 Feb 20
 
controlled noisillator module
Notes: Really clever noise-based oscillator from AJH. Drones, sweeps and bleeps aplenty, ranging from tamed to out-of-control filth. Also doubles up as a more conventional ring mod and distortion module.

Supplier's notes:
This 14HP wide module is a voltage controlled noise based oscillator, or noisillator for short. It generates 1/f noise and this is then sent through a feedback loop which allows the noise to be "tuned" to varying degrees depending on the settings of the frequency and resonance controls, or incoming frequency or resonance CV's. The tuned circuit can be FM modulated too, for some thunderous sweeping sounds. We have bright and dark outputs, which are pre and post filter respectively. The Bright output will always have a degree of noise present in the signal, whereas the Dark output can be tuned noise only when 4 pole resonance is selected. We also have an external Sync input, which will reset the resonant waveform, and we also have an Audio input, so that an external signal can be mixed into the resonant loop. Combinations of external waveforms to these two inputs can create some massive drone sounds, or sweeping sync sounds.

There is also an XOR ring modulator, which can be used as a module in its own right too. Lastly, we have an XOR amplifier, which is another independant circuit that can be used to add noise and distortion to any audio signal.
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AJH Synth Lunar Module Apollo Mission Communicator Module (black)
Notes: Truly unique one from AJH, based on the sound of NASA's Apollo voice transmissions. Think outside the box and process drums and synths through this thing. Freaky. May or may not allow you to communicate with real astronauts.

Supplier's notes:
Here's a bit of fun for all fans of space missions from the previous century! This module is designed to re-create the ground to space and space to ground transissions from the Apollo era.

To be "Mission Control Houston" the Quindar PTT (push to talk) button adds a short 2,525Hz Qindar tone to the start of the transission, then at the end of the message the PTT button or switch is released and a short 2,475Hz Quindar tone is added to the audio. The bandwidth is slightly reduced in this mode.

For "Astronaut comms" we press the Capsule PTT switch, which allows us to add coloured noise, distortion, bandwidth reduction and either hum or LGM (Little green men space tone) noise to the audio signal. A deep space electret condenser mic is supplied and an be used with the MIC input.

Obviously the Lunar Module can also be used to add noise, hum, distortion, bandwidth reduction and LGM noise tone to any modular level audio too, and if the mic is left attached theremin like sounds can be added too with careful loudspeaker feedback.

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AJH Synth Mini Mod DH ADSR Envelope Module (black)
Cat: 637047 Rel: 22 Mar 17
 
Model D-based complex envelope generator - dark edition
Notes: AJH Synth have had quite a few requests for a variant of MiniMod contour generator with Release added to the envelope so that it is full ADSR but still with the characteristics of the Model D - so this is what they have done!

The DH-ADSR is exactly the same circuit as the original Model D envelope and therefore features the same contour shape and retrigger behaviour, but with the addition of a release control. However, they have also added a pulse delay and pulse stretch circuit, along with a re-trigger facility (both of these can be switched out of circuit so that the envelope is a simple ADSR unit).

The addition of pulse stretching and retrigger makes it into an LFO module and it can perform in a similar way to the EMS Synthi A and VCS3 Trapezoid generator, with a variable delay between each trigger and a variable "on" time - however it can also have full ADSR envelope on each retrigger too!

Notable Features:

- PREDELAY - This control determines how long (up to 10 seconds) the start of the envelope is held off, after a gate is received. This ability to delay the onset of the envelope is especially useful when used in conjunction with a standard ADSR: With both envelopes receiving the gate simultaneously complex envelopes can be produced as the DH-ADSR only starts running through its stages after the standard ADSR has completed. Once their outputs are mixed together in a mixer a single evolving envelope with multiple stages is produced!

- Use of the bipolar mixer found in the MINIMOD CV MIX-OFFSET-VCA module can enhance this technique even further, with more precise control over the polarity/offset of the envelope mix possible. Using the VCA of this module could allow for external modulation over either/both of the signals. It goes on...

- HOLD - When in Del-Hold mode (switch down) the HOLD control determines the gate length applied to the envelope, and thus controlling its length/overall shape. When the switch is up, normal ADSR action is produced.

- RETRIG - In this mode the DH-ADSR becomes an LFO, which can mimic the "Trapezoid" function of the vintage EMS designs. HOLD controls the length of the trapezoid shape, and PREDELAY allows for adjustable gaps between each repeat of the shape produced.
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AJH Synth Mini Mod DH ADSR Envelope Module (black) (B-STOCK)
Cat: 776429 Rel: 22 Mar 17
 
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***


AJH Synth have had quite a few requests for a variant of MiniMod contour generator with Release added to the envelope so that it is full ADSR but still with the characteristics of the Model D - so this is what they have done!

The DH-ADSR is exactly the same circuit as the original Model D envelope and therefore features the same contour shape and retrigger behaviour, but with the addition of a release control. However, they have also added a pulse delay and pulse stretch circuit, along with a re-trigger facility (both of these can be switched out of circuit so that the envelope is a simple ADSR unit).

The addition of pulse stretching and retrigger makes it into an LFO module and it can perform in a similar way to the EMS Synthi A and VCS3 Trapezoid generator, with a variable delay between each trigger and a variable "on" time - however it can also have full ADSR envelope on each retrigger too!

Notable Features:

- PREDELAY - This control determines how long (up to 10 seconds) the start of the envelope is held off, after a gate is received. This ability to delay the onset of the envelope is especially useful when used in conjunction with a standard ADSR: With both envelopes receiving the gate simultaneously complex envelopes can be produced as the DH-ADSR only starts running through its stages after the standard ADSR has completed. Once their outputs are mixed together in a mixer a single evolving envelope with multiple stages is produced!

- Use of the bipolar mixer found in the MINIMOD CV MIX-OFFSET-VCA module can enhance this technique even further, with more precise control over the polarity/offset of the envelope mix possible. Using the VCA of this module could allow for external modulation over either/both of the signals. It goes on...

- HOLD - When in Del-Hold mode (switch down) the HOLD control determines the gate length applied to the envelope, and thus controlling its length/overall shape. When the switch is up, normal ADSR action is produced.

- RETRIG - In this mode the DH-ADSR becomes an LFO, which can mimic the "Trapezoid" function of the vintage EMS designs. HOLD controls the length of the trapezoid shape, and PREDELAY allows for adjustable gaps between each repeat of the shape produced.
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AJH Synth Mini Mod Dual Contour Generators Module (black)
Cat: 625067 Rel: 22 Sep 16
 
Eurorack format dual envelope generator based on the original RA Moog design
Notes: Two independent Contour Envelope Generators in a single 12hp wide Eurorack module. These are very accurate replicas of the Model D contour generators, with identical circuitry and component values running on the correct +9.3V and -10v supply voltages of the original; so they exactly replicate the original envelope response along with all of it eccentricities. Extra features include manual trigger buttons and envelope status LED's.

The contour generators played a larger part in the sound of the Model D than many people realise. There are two factors that make them unique, firstly the exponential slope when is used in conjunction with the (near) linear slope of the original VCA which is responsible for the famous Model D "punch". Secondly, the re-trigger behaviour is quite unique, multiple retriggering increases the output level so that either the volume increases incrementally, or the filter opens incrementally with each extra key press.

AJH Synth have added independent Decay switches for each individual Contour Generator rather than the shared switch on the original synthesiser, these switches change the Contour response from AD (switch up) to ADSD mode (switch down).
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AJH Synth Mini Mod Dual LFO & VCA Module (black)
Cat: 637044 Rel: 22 Mar 17
 
Dual LFO with waveshaping, sync input & DC-coupled VCA - dark edition
Notes: This has two LFOs, each with variable waveshape from Saw to Triangle to Ramp waveforms, or variable Pulse width on the Square wave output. LFO 1 has the addition of a low range and a Sync input. The nominal maximum frequency of the LFOs when in Triangle shape is 20Hz, but under certain combinations of settings they will go much higher, well into audio range.

Also included is a DC coupled VCA, the input of the VCA is normalised to the output of LFO 2, so a 0 to +5V input to the VCA CV input gives control of the LFO waveform amplitude. It can also be used as a stand alone VCA.

This module is very useful for controllers such as the Waldorf KB37 where the modulation wheel gives out 0 to +5V, this can be routed to the VCA CV module so the level of the modulation waveform can be easily controlled. This makes it very easy to add VCO vibrato or filter 'wah' with control of modulation amount from the modulation wheel or other controller.
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AJH Synth Mini Mod Precision Voltages Module (black)
Cat: 755446 Rel: 07 Nov 19
 
Precision voltages module - dark edition
Notes: Sometimes real precision is required with pitch control voltages - this module features a super accurate "Cal" output, which is accurate to <1mV over 20V, translates to one cent over 20 octaves! It is ideal for calibrating the scaling of VCO's, indeed we have been using our own version of this circuit to calibrate our own MiniMod VCO's for the last three years.

As well as being a precision voltage source it is also a very accurate voltage adder, it has two channels (A & B) and both full volts (octaves) or 1/12th volt increments (notes) can be either added to or subtracted from the incoming signal. Perfect for adding a voltage offset to the output of a sequencer or it can be used to add switchable octaves to a VCO which only has course and fine tunes controls.

It also has a "mix" output, which allows either A channel on its own, or with the three way toggle switch channel B can either be added to, or subtracted from channel B, and this is in addition to the addition and subtraction per channel mentioned earlier.

Dimensions: 10HP wide, 26mm Deep
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AJH Synth Mini Mod Sample Hold & Slew Module (silver)
Cat: 708090 Rel: 18 Apr 19
 
Sample & Hold, Track & Hold, Gated Slew, Clock & Noise generator - silver, 12HP
Notes: A real powerhouse module that takes up only 12 HP of rack space. It can generate random and pseudo random control voltages, staircase waveforms, deliberate aliasing of audio signals, portamento type effects, adjustable audio range noise and has many other uses too.

It can be switched between Sample & Hold or Track & Hold modes, and the unique "Restrict" control affects the way the hold output changes with respect to the current input level and previously held output level. With the control fully off the unit behaves just like any other S/H, but at fully clockwise the output is restricted to move by only a small amount after each new sample. The output will still have the same range as the input, but will need more hold commands to get there. This versatile Sample and Hold circuit was designed by Tony Allgood, and is built under licence from Oakley Sound.

The Sample Hold & Slew module also includes a very well featured Slew generator, which includes a Gated Slew function. It can be used independently or chained with the S&H module. Slew mode can be switched between Linear or Exponential Slew types. There is a Gate input, so that the Slew on/off can be switched using an External CV (Gated Slew), and also the Slew control logic can be reversed by a toggle switch that doubles as a manual Slew on/off switch. In addition, it has slew up only, slew down only or slew up and down modes, which are selected with a three-way toggle switch. An indicator LED lights when Slew is active

There is also an inbuilt analogue Noise generator, which is normalised to the input of the Sample and Hold section, and there are both regular and clipped Noise outputs - the Clipped Noise is particularly useful with the sample and hold section, as it is weighted to produce higher random voltages. Both Noise outputs are fed through an internal "Noise Colour" control - at centre position it allows the noise through unfiltered, turning the control anti-clockwise introduces low pass filtering of the Noise, and rotating it clockwise introduces high pass filtering. The Noise source itself is based on an analogue band gap shunt regulator configured in avalanche mode, and it generates white noise with a gradual roll off above 8kHz. It is a little "grainier" in character than the noise from our MiniMod Glide & Noise module (which uses a reverse biased transistor as a noise source), so is a useful compliment to this module as it does not generate exactly the same sounding Noise

Lastly, it includes a wide range clock generator with a rate LED. The range is from one cycle every thirty seconds to around 2 kHz and the clock output is normalised to the Clock Input of the S&H section. It also has a Clock Out jack so that it can be externally patched to other Eurorack modules.
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AJH Synth V Shape Wave Twist & Distort Module (black)
Cat: 688825 Rel: 01 Aug 18
 
Wave twister/distortion module - black, 10HP
Notes: The V-Shape is two modules in one, a wave twister and a distortion/wavefolding module. Both sections of the module are all analogue in design, and both can be used independently, or they can be normalised together in series, so that a waveform can be twisted first and then distorted and wavefolded.

The wave twister can take (for example) a saw tooth waveform as an input and shape it, under manual or external voltage control, through to being a triangle waveform and on to being a ramp waveform, and produces a sound similar to PWM for sawtooths. It will also work with symmetrical waveforms such as triangle and sine waves, again producing PWM like tones.

It can produce a wave twisting effect from most waveforms (with the exception of square waves), whether they are symmetrical or asymmetric. Under many conditions the transfer function is not perfect, so different harmonics may be generated too. The offset control allows a bias to be added to the incoming waveform, either to bias it correctly around zero or offset it for more distortion and harmonics.

The second part of the V-Shape module is a distortion unit, with selectable Soft or Hard Clipping, and the clipping amount can be varied either by a front panel control or an external control voltage with the "Distort" control. The distortion offset control adds or subtracts a bias voltage to the CV signal, to give an extended range of control. There is also a single stage, switchable wavefolder, which can be used with either soft or hard clipped waveforms.
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ALM Akemie's Taiko FM Drum Voice Module
Cat: 628650 Rel: 17 Oct 16
 
Complete drum voice featuring algorithm selection, operator release envelopes, ratios, waveforms & feedback
Notes: Gritty drum voice module based on new old stock Yamaha FM synthesis chips, also capable of a decent range of synth tones. User-friendly knobby interface with a decent range of CV inputs for modulation.

Supplier's notes:
'Akemie's Taiko' is an authentic complete FM synthesis based drum voice created using original Yamaha IC's. It builds on the same technology used in the mighty Akemie's Castle but in a more complete triggered voice form featuring both signal generation and envelope shaping.

The module provides CV and direct control over a number of FM parameters including algorithm selection, operator release envelopes, ratios, waveforms & feedback. This gives a massive range of unique sounds.

The voice is able to track 1 volt per octave allowing it to be used for melodic lines as well as percussion. Also optional 'frequency ramps' can be enabled for additional audio effects.

The drum voice includes a trigger input as well as accent and choke trigger inputs to add further expressive and rhythmic control.
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ALM Dinky's Taiko Digital Drum Voice Module
Cat: 584252 Rel: 15 Apr 16
 
12bit digital drum voice synth module with full voltage control and an analog EQ output path - 12HP wide
Notes: Dinky's Taiko' is a 12 bit digital drum voice with full voltage control and an analog EQ output path.

The drum voice consists of 3 parts; a digital noise source with controllable frequency and release time, a wavetable oscillator with start and end frequency settings together with a variable rate (and release time, and finally a mix and tone control for the audio output. All settings, bar the tone control, are both direct and voltage controllable.

The drum voice includes a trigger input as well as accent and choke trigger inputs to add further expressive and rhythmic control.
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ALM Pamela's New Workout Programmable Clocked Modulation Source Module
Cat: 648928 Rel: 25 May 17
 
Compact programmable clocked modulation source in Eurorack format - 8HP
Notes: Updated version of the Pamela's Workout clock source module from one of the best Eurorack brands around. Now functions as a modulation source as well as clock, providing eight outputs of CV. Essential.

Supplier's notes:
'Pamela's NEW Workout' is a compact programmable clocked modulation source for your Eurorack modular synthesiser system. It provides 8 highly editable outputs producing various control voltage signals correlated and synced to a BPM based master clock.

Building on the original 'Pamela's Workout', this new evolved model maintains the original's form factor and intuitive workflow but greatly improves on and adds many new features with upgraded hardware, a new OLED display and rewritten software.

Each output is now able to provide not just clocked triggers but also rhythmic waveforms with many parameters controllable directly and via assigning to external CV control. Pamela has grown beyond a clever clock and now provides almost limitless synced modulation possibilities.

Improvements have been made to overall clock stability and integration with external clocks and devices. Also new are dedicated MIDI and Din Sync clock outputs available via optional expander modules.
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Analogue Systems RS-100N Lowpass Module
Cat: 777029 Rel: 15 Sep 20
 
Low pass filter module
Notes: This low pass filter is a very good -24dB/octave Moog filter, based on the classic Moog cascade with selected, low-noise transistors. Being the successor of the RS-100, the new "S" version features several improvements regarding stability, tracking, distortion behavoiur and also the frequency range.

Two signal inputs, resonance, manually and voltage controlled cutoff frequency. Frequency range 10Hz to 35kHz with CVs applied. The transistors used in the filter cascade are low-noise and have been selected and matched in pairs to improve the frequency response over the whole frequency range. A better stability guarantees, after a one minute heating time, that the filter can be used as a clean and well tracking sine wave oscillator.
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FORTHCOMING
Analogue Systems RS-110N Multimode Filter Module
Cat: 777031 Rel: 31 Jan 21
 
multimode filter module
Notes: The RS-110 is a resonant analog multimode filter with excellent sound, resonance and four simultaneously available filter types. An insert function in the feedback loop allows you to insert other audio processors.

The module has two audio inputs, each with a level control. "unity gain" is reached at position 4, beyond this the signal will be overdriven at the filter input.

The cutoff frequency can be set manually in a range of 30Hz to over 15kHz, with additional CVs even up to 50kHz.

Separate audio outputs for the four filter types are available: 24dB low pass, 24dB high pass, 12dB band pass and 12dB notch.

Resonance goes up to self-oscillation and besides that it offers an unique feature: the socket Res-Out and Res-In act like an insert i.e. they allow you to process the audio signal in the feedback loop by other audio processors like filters, distortions, delays, frequency shifters etc.

You get very wicked results when you connect the notch output with the resonance input. It sounds very metallic and the filter behaviour gets more aggressive. Generally it is fun to cross-connect the separate outputs with the CV and audio inputs and to use the filter in a modular way.

In use:

The RS-110N consists of a two channel audio mixer followed by four, parallel, resonant filters with voltage controlled frequency and a unique "insert" point in the feedback path that generates and controls resonance.

Filter Modes

The RS-110N offers four filter modes. These are 24dB/Oct low-pass , 24dB/Oct high-pass, 12dB/Oct band-pass and 12dB/Oct band reject (often called 'notch') filtering, with the cutoff frequencies (Fc) of the high-pass and low-pass outputs being the centre frequencies of the band-pass and notch outputs. Each of these filter characteristics is described in appendix 2.

There is no switch to select between the modes because all four are available simultaneously from the appropriate output sockets. However, the cut-off and resonance can not be defined individually for each, and the controls act upon each mode equally

You can determine Fc in the range 3Hz to 50kHz using combinations of the frequency control knob and the voltage control inputs.

CV-IN:
If you apply a CV conforming to the 1V/Oct standard, Fc will track the CV in exactly the same way as an RS-90 VCO would if you applied the same CV to its CV-IN 1V/Oct socket. If the CV is supplied from a keyboard then, in common parlance, the filter is tracking the keyboard 100% and, with the resonance at maximum, you can 'play' the filter as if it were a conventional oscillator.

You can also use this facility to make a notch or band-pass filter "track" the notes you are playing, and this can be used to create many special effects.

CV-IN VARY:
You may wish Fc to track incoming CVs differently, so the C V-IN VARY input is provided. This socket and its associated LEVEL control allow you to specify the filter's sensitivity to C Vs within the range 8V/oct to approximately 0.4V/Oct. The former of these makes the filter invariant to incoming CVs, while the latter makes it oversensitive compared to CV-IN.

Resonance

The filters have a common resonance, 'Q', that you can control using the RESONANCE knob. In its fully anticlockwise position, Q is approximately zero, and there is no emphasis of the signal at Fc. As you rotate the knob clockwise Q will increase, whereupon every mode of the RS-110N will accentuate the harmonics that lie close to the cut-off frequency, Fc. Increasing Q further, the filters will exhibit ringing, and will severely colour any signals passed through them. Finally, if you continue to increase the resonance beyond a certain point, the filter will itself begin to oscillate, even in the absence of an input. Each mode will now produce a stable tone at the cutoff frequency determined by the various controls. This oscillation takes the form of (approximately) a sine wave, and it is produced by all four of the conventional audio outputs. The exact nature of the wave varies slightly from mode to mode, and you can use these subtle differences to create tonal variation when using the RS-110N as an oscillator.

Uses for RES OUT and RES IN include the introduction of voltage controlled resonance (achieved by routing the signal via an RS-180 VCA) or the creation of special effects (achieved by modifying the signal using devices such as reverb units).
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Analogue Systems RS-500N Synthifilter Module
Cat: 777032 Rel: 26 Jun 20
 
filter module
Notes: Genuine EMS synthi filter, with redesigned faceplate!

This legendary filter can be switched between pre1974 and post 1974 filter type and response. For the first time response can be voltage controlled which was designed on the circuit board but not available on the matrix. This module is made under license from EMS. The only officially licensed remake of the EMS diode lowpass filter used in the VCS3 and AKS synths. It´s a faithful recreation of the original circuit, featuring some modifications that are also done on vintage EMS equipment, like a switchable faster CV response option for very quick modulations. Another switch determines if the filter has 18dB/oct slope as used by EMS pre-1974 or 24dB. The cutoff frequency and also the resonance are voltage controllable. Signal inputs and outputs have level controls.
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Analogue Systems RS-650N Echo & Reverb Module
Cat: 799757 Rel: 13 Nov 20
 
Echo & reverb synth module
Notes: The RS-650 Echo / Reverb is a combination of the RS-310 and RS-440 which are based on the same circuit.

It offers both delay (echo) and reverb settings in one module. It is based on a bucket brigade device (BBD) with six parallel delay taps. Those six delay times have no relationship to each other and their outputs have different levels. You have to consider the reverb effect as a mixture of six different short delays what results in a dense sound. The clock frequency which scans the bucket brigade is audible and you'll have to use a low pass filter in order to eliminate or minimize it. In Reverb mode the delay time can be set between 2.5ms and 150ms and in Echo mode it spans from 75ms to 200ms.

All modules by Analogue Systems come ready to use with five years warranty mounted in the by the customer preferred rack or cabinet.

Depth: 65mm
HP : 12
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