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Synth modules

The Eurorack modular synth format is one of the most exciting areas of music technology. Pioneered by Doepfer, there are now hundreds of brands offering compatible modules of all varieties. You can combine your choice of the best oscillators, filters and much more in order to create a unique, bespoke synth setup which perfectly suits your needs. Eurorack modules offer the biggest range of options you can imagine, from basic analogue modules which replicate the sound of classic vintage synths, through to digital modules which allow you to explore completely new approaches to making music. Whether you’re a beginner or a more experienced modular head, you can take your pick of the best modules from leading brands including Mutable Instruments and ALM Busy Circuits. Our range also includes accessories, cases, patch cables and much more, allowing you to build and customise your perfect modular synth setup.
Synth modules
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150/119(ページ1/3)の商品
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2hp ADSR 4-Stage Linear Envelope Module (silver) (B-STOCK)
Cat: 985275 Rel: 01 Jan 90
 
B-STOCK: Without original box, product has light surface marks but otherwise in perfect working condition.
Notes: ***B-STOCK: Without original box, product has light surface marks but otherwise in perfect working condition.***


ADSR is a four stage linear envelope with two expressive ranges. Each stage can be modified independently allowing for the creation of complex, multi-segment envelopes. Great for modulating filters, VCAs, and oscillators.
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MRP:$110.44 SAVE 19%
 1 in stock $89.81
2hp ADSR 4-Stage Linear Envelope Module (silver) (B-STOCK)
Cat: 982540 Rel: 01 Jan 90
 
B-STOCK: Box opened, product in perfect working order
Notes: ***B-STOCK: Box opened, product in perfect working order***


ADSR is a four stage linear envelope with two expressive ranges. Each stage can be modified independently allowing for the creation of complex, multi-segment envelopes. Great for modulating filters, VCAs, and oscillators.
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MRP:$110.44 SAVE 22%
 1 in stock $86.25
2hp Clk Voltage Controlled Clock Generator Module (black) (B-STOCK)
Cat: 985278 Rel: 01 Jan 90
 
B-STOCK: Without original box, product has light surface marks but otherwise in perfect working condition.
Notes: ***B-STOCK: Without original box, product has light surface marks but otherwise in perfect working condition.***


Clk is a voltage controlled clock generator with all the features a master clock needs. It has an extremely wide range from ten seconds between pulses well into audio rate. In addition, the pause button and CV input provide an expressive feature that is all too often missing in a modular setup. Stop using LFOs or other modulation sources for your master clock, and let Clk do what it's best at.
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MRP:$95.72 SAVE 27%
out of stock $69.77
AE Modular CVADDER-HQ Precision CV Adder Module
Cat: 944306 Rel: 15 Feb 24
 
A precision adder module especially for adding 1V/octave (pitch-controlling) CVs.
Notes: The CVADDER-HQ is a precision adder especially for adding 1V/octave (pitch-controlling) CVs. This makes it possible e.g. to transpose a sequence. Compared to general purpose CV mixers (like POLAMIX), this module does the summing of the CVs very precise (within a few millivolts), so the desired pitch is not affected.

The module offers four CV inputs where three of them are summed, and the CV at the fourth input is subtracted - meaning "transposition downwards".

This module also allows transposing the incoming CV by one or two octaves or a variable offset by buttons.

A separate output provides the voltage of the internal transposition (+1, +2 octaves / free).

If the transposition buttons are not necessary and you prefer to have a dual precision adder, take a look at the 2CVADD-HQ module.
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 1 in stock $52.33
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After Later Audio Cast Iron Voltage Controlled Panner Module
Cat: 1004354 Rel: 11 Mar 24
 
Voltage controlled panner module
Notes: A simple VC panner with CV-controlled level. The left input normals to the right input to give an easy way to add panning to a mono signal.

Expandable

Bartender, Barbacks, DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 4hp
12V: 40mA
-12V: 40mA
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 1 in stock $77.84
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After Later Audio USB-2CH 2-Channel USB Module
After Later Audio USB-2CH 2-Channel USB Module (digital/dual/stereo/mixer module)
Cat: 1004343 Rel: 11 Mar 24
 
2-channel USB module - 4HP
Notes: Two channel USB module.

Standard Mode - Send two channels into your USB device and receive two channels from USB.

Insert Mode - Send two channels to your USB device and get a copy of the sent signal in the outputs.

Toggle between the modes via a pair of jumpers on the back. The USB-B to USB-A cable is provided with the module. Why use the cutting edge USB-B? I felt the jacks were way more sturdy than mounting USB-C jacks vertically.

Expandable - Bartender, Barbacks, DVCA, Cast Iron, Mingles, and USB-2CH can all be connected with Dupont cables (aka female to female breadboard cables) via pin headers on the back of the modules. Connecting the in and out pins will send/receive the audio into the next module.

Width: 4HP
12V: 10mA
-12V: 10mA
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 1 in stock $93.35
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ALM Stereo Sum Unity Gain Summing Mixer Module
Cat: 956434 Rel: 07 Jul 23
 
Unity gain summing mixer module - 4HP.
Notes: The 'Stereo Sum' is a unity gain summing mixer that features four stereo input pairs summed as pairs to two independent mix outs or all as a single combined mix. It is a useful utility for efficiently combining outputs of multiple stereo sources, such as the MEGA-TANG and Jumble Henge mixers or multiple MFX returns. The inputs accept stereo or mono signals (via normalisation) which can be audio or CV (module is DC coupled) and the top mixer's outputs are normalised to the bottom mixer section meaning if the upper output is left unpatched the two upper inputs will be added to the lower output.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).

Left ins normalised to Right for mono signals.

Stereo mix output 1

Stereo mix output. Normalised to bottom mixer section if ouput is left unpatched.

Stereo input pairs

Stereo inputs. Can be used with audio or CV (inputs are DC coupled).
Left ins normalised to Right for mono signals.

Stereo mix output 2

Final stereo mix output.

Technical specifications

Power: +12V 8ma / -12V 8ma
Size: 4HP
Depth: 32mm
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 5 in stock $75.72
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Befaco Out 1U Stereo Output Module With Cue & Headphones
Cat: 938386 Rel: 25 Apr 23
 
A stereo output module in 16HP and 1U format.
Notes: Out is a 1U stereo output module designed to convert audio signals from your modular to line-levels. The module is designed to be used on cases with onboard Jack connectors or Intellijel 7U and Palette series, as it uses the same pinout. The module also includes a high-quality Headphone amplifier with an auxiliar monitoring CUE input.

Features:

High-quality Headphones amplifier
Monitoring CUE Input with source selector
Fully compatible with Intellijel 7U and Palette cases rear Jack connectors.
1U Intellijel format.

Specs:

Current needs: +12V: 30mA, -12V: 30mA
Width: 16 HP
Depth: 30mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona
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out of stock $90.45
Befaco ST Amp 1U Input Stereo Amplifier Module
Befaco ST Amp 1U Input Stereo Amplifier Module (dual/stereo/preamp synth module)
Cat: 938387 Rel: 25 Apr 23
 
A stereo amplifier module in 10HP and 1U format.
Notes: ST Amp is a 1U stereo amplifier designed to boost your external signals into modular levels. The module is designed under the Intellijel 1U format and uses the same pinout, making it fully compatible with the Intelljel case's rear connectors.

Features

Stereo amplifier and signal booster.
Three selectable gain modes: x1, x5 and x10
Level meter LEDs
Fully compatible with Intellijel's 7U and Palette cases.
1U Intellijel format.

Specs

Current needs: +12V: 30mA, -12V: 30mA
Width: 10 HP
Depth: 37mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona
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 1 in stock $82.03
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Befaco STMix 1U 4-Channel Stereo Mixer Module
Befaco STMix 1U 4-Channel Stereo Mixer Module (dual/stereo/mixer/utility synth module)
Cat: 938392 Rel: 25 Apr 23
 
A four-channel stereo mixer in 28hp and 1U format.
Notes: STMix is a four-channel stereo mixer in 28hp and 1U format. It can work independently or as an expansion of Befaco's Hexmix module via the six-pin connector located in the back. The module is designed under the Intellijel 1U format.

Features

Four channels stereo inputs with volume control.
AC Coupled inputs to improve audio performance.
Output clipping LED indicators.
Connector at the back to interface with the Hexmix module.
1U Intellijel format

Specs:

Current needs: +12V: 30mA, -12V: 30mA
Width: 28 HP
Depth: 20mm (including power connector)
Aluminium, heat-treated front panel
Designed, kits prepared and completed modules assembled in Barcelona
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MRP:$99.92 SAVE 11%
out of stock $89.40
Der Mann Mit Der Maschine TRS Split CV/Audio Signal Distributor Module
Cat: 1005286 Rel: 07 Mar 24
 
CV & audio signal distributor module - 2HP
Notes: TRS Split - CV/Audio signal distributor

TRS Split is a multipurpose CV and audio signal distribution module. It has three 3.5 mm TRS (tip/ring/sleeve - stereo) jacks and six ordinary 3.5 mm mono jacks.

It contains 3 identical sections set up as following:

Upper jack carries the tip signal
Middle jack carries the stereo/dual signal
Lower jack carries the ring signal

Each section can either split a stereo signal into two mono signals or join two mono signals into one stereo signal. The module does not have any active components and does not need a power supply.

Use cases:

When you plug a stereo signal carried by a stereo (TRS) cable into the middle jack, you receive two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. That way you can attack an "AUX" cable such as from your smartphone to your modular.

Or the other way around: Send two separate mono signals by plugging in a mono (TS) cable in the upper jack to carry the left signal and a mono (TS) cable in the lower jack to carry the right signal. Receive a stereo signal at the middle jack to be used with a stereo (TRS) cable.

Converting from stereo to dual mono and back allows you to alter the two sides of a stereo signal with different effects/filters.

Some tuners such as the Korg NTS-2 accept inputs to tune two oscillators combined in one 3.5 mm stereo jack. With one splitter you can easily feed two VCO signals into such a tuner.

Switching sides

Two splitters can be used to switch tip and ring (left and right): Plug in a stereo cable in the middle jack of the first section. Connect mono cables to the upper and lower jack of the first section. Then connect the upper mono cable of the first section to the lower mono jack of the second section and the lower mono cable of the first section to the upper mono jack of the second section. The signals are switched. Plug a stereo cable in the middle of the second splitter and you're good to go.

Hint: This also works for MIDI signals. If you use MIDI over minijack, there are two standards A and B - some manufacturers use A some B - thus not all connections are working. Now you can easily switch between the standards using the TRS Split.

Note: The MIDI input of the DROID X7 automatically detects A and B, so there is no switching necessary. The MIDI output of the X7 can be set to A or B with a switch on the back of the module.

Stereo multiple setup

If you have a separate multiple in your modular, you can use the TRS-SPLIT to create a 1:2 stereo multiple as follows:

Plug a stereo cable in the middle jack of section 1, patch the mono cable from the upper jack into section 1 of your multiple (e.g. a 3/3/3 multiple) and feed two of the outputs back into the upper jacks of section 2 and 3. Do the same with the mono cable coming from the lower jack of section 1 going into the second section of a 3/3/3 multiple and patch two cables back into the lower jacks of section 2 and 3 of the TRS Split. Now the middle jacks of section 2 and 3 both carry the stereo signal.

Dimensions
2 HP
22 mm deep

Current Draw
Module does not draw current
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 1 in stock $50.22
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Doepfer A-130-2v VCAs Dual Linear/Exponential VCA Slim Line Series Vintage Edition Module (black)
Cat: 973749 Rel: 14 Nov 23
 
Dual linear/exponential VCA module - 4HP.
Notes: Module A-130-2v is composed of two identical voltage controlled amplifiers (VCA). Each VCA has a manual gain control (also named Initial Gain) and a control voltage input with attenuator. The character of the control scale can be switched to linear or exponential. All inputs and outputs are DC coupled. Consequently the VCAs can be used to process both audio and control voltages (e.g. for voltage control of the level of LFO or envelope signals). The signal input has no attenuator available but is capable to process up to 16Vpp signals (i.e. -8V...+8V) without distortion. For the processing of higher levels an external attenuator (e.g. A-183-1) is recommended.

The amplification range is 0...1. Even with a higher external control voltage the amplification remains at 1 (kind of "amplification clipping" at 1).

Controls (for each of both units):

Gain: manual gain control (Initial Gain) in the range 0...1
CV: attenuator for the CV input
lin/exp: switches the VCA characteristic to linear or exponential, in center position the VCA is off (mute function)
Inputs and outputs (for each of both units):

CV: control voltage input, min. +5V required for max. amplification (1) with CV control fully CW and Gain fully CCW
In: signal input, max. 16Vpp (+8V...-8V) without distortion
Out: signal output

A-130-2v is the slim version of module A-132-3 and offers essentially the same features. But the distances between the controls are smaller and rubberized small-sized knobs are used. In return the front panel has 4 HP only which is half the width of the A-132-3. The module is primarily planned for applications where only limited space is available.

Power consumption: 30mA at +12V and 30mA at -12V

Depth: 50mm

HP : 4
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Tags: VCA module
 2 in stock $95.71
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Doepfer A-130-4 Quad VCA Module
Cat: 973752 Rel: 14 Nov 23
 
Quad VCA module - 4HP.
Notes: Module A-130-4 contains four linear VCAs with a common level control section for all four VCAs. It can be used for all applications of simultaneous amplitude/level control of up to four different audio or CV signals. A-130-4 is the replacement of the no longer available module A-132-2. Compared to the A-132-2 the width has been reduced from 8HP to 4HP.

The module has these controls and in/outputs available:

Control Man.: manual control of the amplification
Control CV: attenuator for the control voltage applied to socket CVo socket Input 1
Sockets In 1...4: VCA inputs 1...4
Sockets Out 1...4: VCA outputs 1...4

Application examples:

simultaneous amplitude/level control of up to four different audio or CV signals
polyphonic application 1: simultaneous control of the frequency modulation depth of 4 VCOs (Quad-LFO A-145-4 or Quad-VCLFO A-147-5 > A-130-4 > FM inputs A-111-4)
polyphonic application 2: simultaneous control of the pulsewidth modulation depth of 4 VCOs (Quad-LFO A-145-4 or Quad-VCLFO A-147-5 > A-130-4 > PWM inputs A-111-4)
simultaneous control of quadrophonic signals

Technical notes:

The maximum amplification for each VCA is about 1 ("Man." control fully CW). Even with an external control voltage applied to the CV input the maximum amplification is limited to 1.
The module is equipped with two internal connectors (pin headers with 4 pins each). Pin header #1 can be used to normalize the four inputs to other modules (e.g. Quad LFO A-145-4 or A-147-5, Quad ADSR A-143-2). Pin header #2 can be used to connect the four outputs to other modules.
The max. level at the VCA inputs without clipping/distortion is about 20Vpp or +/-10V.

Dimensions
4 HP
45 mm deep
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Tags: VCA module
 2 in stock $80.98
Doepfer A-138sv Mini Stereo Mixer Vintage Edition Module (black) (B-STOCK)
Cat: 980376 Rel: 01 Jan 90
 
B-STOCK: Item refurbished, repaired and in perfect working order.
Notes: ***B-STOCK: Item refurbished, repaired and in perfect working order.***


A-138s is a simple but useful 4-in-2 mixing tool. It has four inputs available. Each input is equipped with an attenuator (Level) and a panning control that is used to distribute the signal to the left and right output. Beyond stereo mixing it is equally suited to create variable parallel routings. For example: Any of the four inputs may be routed in variable intensity to feed two filters.

You may regard the A-138s as a smaller version of the A-138m Matrix Mixer.

Inputs and outputs are DC coupled, i.e. the module can be used for the mixing of control signals too.

- 3U Eurorack module, 8 HP wide, 30 mm in depth
- Power consumption: 10 mA at +12 V and 10 mA at -12 V
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MRP:$93.61 SAVE 16%
out of stock $78.75
Doepfer A-140 ADSR Envelope Generator Module (silver) (B-STOCK)
Cat: 968709 Rel: 01 Jan 90
 
B-STOCK: Box damaged, product in perfect working order
Notes: ***B-STOCK: Box damaged, product in perfect working order***


Module A-140 is an envelope generator, and, since it puts out control voltages, counts as one of the modulation devices in a modular system. As soon as the gate input receives sufficient voltage, the ADSR generates a variable voltage, changing in time, called an envelope. This varying voltage is output in normal (positive) and inverted form, and can be used, eg. for voltage controlled modulation of a VCO, VCF, or VCA, or for processing other modules' inputs and outputs.

The shape of the envelope is governed by four parameters: Attack, Decay, Sustain and Release.

The envelope is started (triggered) by a gate signal either from the INT.GATE voltage on the system bus, or, if a signal is put into it, from the gate input socket.

The envelope can also be re-triggered, i.e. start from scratch again, each time a trigger signal is sensed at the Retrig. input socket, when the gate is still open.

Module A-140 has available a three-position toggle switch to select one of three time ranges. The envelope duration ranges from about 50us (microseconds) up to several minutes.

In combination with the Comparator module A-167 a free-running "ADSR-LFO" can be realized.
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out of stock $70.47
Doepfer A-147-5 Quad VCLFO Module (silver)
Cat: 973756 Rel: 14 Nov 23
 
Quad VCLFO module - 4HP.
Notes: Module A-147-5 contains four voltage controlled low frequency oscillators (VCLFO) with triangle waveform outputs. All LFOs share a common frequency control. Each of the LFOs 2, 3 features a Delta control which is used to shift the frequency of the LFO in question up or down. With the Delta controls at center positions the frequencies of all LFOs are roughly the same. To control the frequencies by external control voltages four CV inputs are available which follow roughly the 1V/oct standard.

The module has these controls and in/outputs available:

Control F: manual control of the frequency for all four LFOs
Control Delta F2, F3 and F4: manual control of the frequency shift up/down for the LFO in question
Sockets CV 1...4: Frequency control voltage inputs (normalled from top to bottom)
Sockets with triangle symbol 1...4: triangle outputs
LEDs: visual displays of the triangle outputs (red = positive, yellow = negative output voltage)

Application examples:

Generation of four triangle modulation signals with a common frequency control for all LFOs and individual controls for the frequency deviation of each LFO, manually adjustable and controllable by external control voltages
Generation of modulation signals for polyphonic FM/PWM applications. For this the four CV inputs are connected to the same control voltages which are used to control the frequencies of the corresponding VCOs. That way each LFO follows the frequency of the associated VCO with the possibility to control the frequency of all VCOs (control F) and the frequency deviations (Delta F controls). For the simultaneous modulation depth control the Quad VCA module A-130-4 is recommended.
Generation of complex modulation signals by summing up the outputs (e.g. by means of a mixer module A-138n / A-138i / A-138j)

Technical notes:

The level of the triangle outputs is about +/-5V (10Vpp)
The manually adjustable frequency ranges from about 0.025 Hz (about 40 seconds) to about 50 Hz with the delta controls of LFOs 2, 3 and 4 about center position
The frequency deviations adjusted by the delta controls are about +/-1:5. Example: with 1 Hz in center position the frequency shift ranges from about 0.2 Hz in position -5 to about 5 Hz in position +5 (1 Hz/5 = 0.2 Hz, 1 Hz*5 = 5 Hz).
The manual frequency controls and the control voltage inputs have an exponential control behavior
With external control voltage the max. frequency is about 150 Hz, the minimum frequency
The scale of the CV inputs is roughly 1V/oct (not adjustable)
The CV inputs are normalled from top to bottom. Provided that only socket CV1 is patched CV1 controls the frequencies of all four LFOs.
When each CV input is patched to it's own control voltage each LFO is controlled individually by it's own CV. In this case CV1 controls only the frequency of LFO1.
Internally the rectangle outputs are available at four terminals (typ level +/-10V or 20Vpp). If required they can be wired to four sockets of a DIY breakout module made by the user, 1k protection resistors are recommended to avoid short circuits. If lower levels are required passive attenuators (voltage dividers) may be used.
Internally is even an (unbufferd) triangle sum signal available. For this each of the four triangle outputs is simply connected to the sum output terminal via a 47k resistor. This output has high impedance and should be buffered or amplified to avoid level drop when the load changes (e.g. by means of an A-180-3 or A-180-4 or A-183-3).
By changing the values of the capacitors in the LFO circuits even other frequency ranges are possible (e.g. Quad VCO to form kind of a cloud VCO). Pay attention that the accuracy of the CV input scales is not sufficient for precise 1V/oct VCO applications. The 1V/Oct scales cannot be adjusted and the circuits are not temperature compensated.

Dimensions
4 HP
45 mm deep
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Tags: LFO module
 1 in stock $99.92
Doepfer A-147-5 Quad VCLFO Module (silver) (B-STOCK)
Cat: 991895 Rel: 01 Jan 90
 
B-STOCK: Box opened, but product is in excellent condition and in perfect working order
Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


Module A-147-5 contains four voltage controlled low frequency oscillators (VCLFO) with triangle waveform outputs. All LFOs share a common frequency control. Each of the LFOs 2, 3 features a Delta control which is used to shift the frequency of the LFO in question up or down. With the Delta controls at center positions the frequencies of all LFOs are roughly the same. To control the frequencies by external control voltages four CV inputs are available which follow roughly the 1V/oct standard.

The module has these controls and in/outputs available:

Control F: manual control of the frequency for all four LFOs
Control Delta F2, F3 and F4: manual control of the frequency shift up/down for the LFO in question
Sockets CV 1...4: Frequency control voltage inputs (normalled from top to bottom)
Sockets with triangle symbol 1...4: triangle outputs
LEDs: visual displays of the triangle outputs (red = positive, yellow = negative output voltage)

Application examples:

Generation of four triangle modulation signals with a common frequency control for all LFOs and individual controls for the frequency deviation of each LFO, manually adjustable and controllable by external control voltages
Generation of modulation signals for polyphonic FM/PWM applications. For this the four CV inputs are connected to the same control voltages which are used to control the frequencies of the corresponding VCOs. That way each LFO follows the frequency of the associated VCO with the possibility to control the frequency of all VCOs (control F) and the frequency deviations (Delta F controls). For the simultaneous modulation depth control the Quad VCA module A-130-4 is recommended.
Generation of complex modulation signals by summing up the outputs (e.g. by means of a mixer module A-138n / A-138i / A-138j)

Technical notes:

The level of the triangle outputs is about +/-5V (10Vpp)
The manually adjustable frequency ranges from about 0.025 Hz (about 40 seconds) to about 50 Hz with the delta controls of LFOs 2, 3 and 4 about center position
The frequency deviations adjusted by the delta controls are about +/-1:5. Example: with 1 Hz in center position the frequency shift ranges from about 0.2 Hz in position -5 to about 5 Hz in position +5 (1 Hz/5 = 0.2 Hz, 1 Hz*5 = 5 Hz).
The manual frequency controls and the control voltage inputs have an exponential control behavior
With external control voltage the max. frequency is about 150 Hz, the minimum frequency
The scale of the CV inputs is roughly 1V/oct (not adjustable)
The CV inputs are normalled from top to bottom. Provided that only socket CV1 is patched CV1 controls the frequencies of all four LFOs.
When each CV input is patched to it's own control voltage each LFO is controlled individually by it's own CV. In this case CV1 controls only the frequency of LFO1.
Internally the rectangle outputs are available at four terminals (typ level +/-10V or 20Vpp). If required they can be wired to four sockets of a DIY breakout module made by the user, 1k protection resistors are recommended to avoid short circuits. If lower levels are required passive attenuators (voltage dividers) may be used.
Internally is even an (unbufferd) triangle sum signal available. For this each of the four triangle outputs is simply connected to the sum output terminal via a 47k resistor. This output has high impedance and should be buffered or amplified to avoid level drop when the load changes (e.g. by means of an A-180-3 or A-180-4 or A-183-3).
By changing the values of the capacitors in the LFO circuits even other frequency ranges are possible (e.g. Quad VCO to form kind of a cloud VCO). Pay attention that the accuracy of the CV input scales is not sufficient for precise 1V/oct VCO applications. The 1V/Oct scales cannot be adjusted and the circuits are not temperature compensated.

Dimensions
4 HP
45 mm deep
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MRP:$109.39 SAVE 14%
 1 in stock $94.20
Doepfer A-196 PLL Phase Locked Loop Module (B-STOCK)
Doepfer A-196 PLL Phase Locked Loop Module (B-STOCK) (filter/oscillator/effect synth module)
Cat: 994989 Rel: 01 Jan 90
 
B-STOCK: Box damaged, product in perfect working order
Notes: ***B-STOCK: Box damaged, product in perfect working order***


Module A-196 contains a so-called phase locked loop (PLL). The basic PLL system is shown in the sketch at the bottom of this page. A PLL consists of three parts: voltage-controlled oscillator (VCO), phase comparator (PC), and low-pass filter (LPF). All parts are normally connected to form a closed-loop frequency-feedback system.

This is how a PLL works: The output of the internal VCO (linear CV control, rectangle output) is compared with an external signal (e.g. the rectangle output of a A-110 VCO) in the so-called phase comparator (PC). The output of the phase comparator is a digital signal (low/high/tristate) that indicates if the frequency resp. phase difference of the two input signals is negative, zero or positive. The output of the phase comparator is processed by a low pass filter (LPF) to generate a smooth voltage that is used to control the frequency of the internal VCO. The 3 units VCO, PC and LPF form a feedback loop that works like this: The control voltage (output of the LPF) increases as long as the external frequency is higher than the frequency of the internal VCO und stops increasing when both frequencies become identical. The control voltage decreases as long as the external frequency is lower than the frequency of the internal VCO und stops decreasing when both frequencies become identical.

But there are some stumbling blocks: Different types of phase comparators with advantages and disadvantages can be made. Some phase comparators e.g. even lock at harmonics, i.e. if the two frequencies to be compared are integer multiples. But for some applications this can be used to create interesting effects. The A-196 contains 3 different types of phase comparators: PC1 is a simple exclusive OR, that even locks at harmonics. PC2 is a so-called RS flipflop and PC3 a more complex digital memory network. The user can select one of the three phase comparators with a 3-position switch. When PC2 is used a LED displays the "locked" state, i.e. when the frequency of the internal VCO is identical to the external frequency.

Special attention has to be directed to the frequency of the LPF. To obtain a smooth control voltage for the VCO the frequency of the LPF has to be much smaller than the lowest frequency of the internal or external audio signal. Otherwise the frequency of the internal VCO will jitter or wobble around the correct frequency. But for special effects this frequency jitter can be used intentionally. Example: frequencies in the range 50Hz...1kHz have to be processed with the PLL. Therefore the frequency of the LPF has to be about 10Hz or even less. Such a low frequency of the LPF causes a noticeable slew of the internal VCO. When the frequency of the external signal jumps e.g. between 500Hz and 1kHz it takes about 0.1 second until the internal VCO reaches the new frequency (like portamento). So one has to find a compromise between frequency jitter and portamento. But these remarks are valid only for the "ideal" working PLL. As the A-196 is used in a musical environment the "problems" and disadvantages with jitter and slew time lead to additional musical applications like portamento effects, wobbling frequencies or harmonic locking according to the type of frequency comparator and time constant of the PLL low pass filter. Instead of the internal manually controlled low pass filter the voltage controlled slew limiter A-171 can be used to obtain voltage control of this parameter. Normal audio filters (e.g. A-120, A-121) cannot be used for this job as the minimum frequency is to high (down to a few Hz or even less necessary) and the signal has to be DC coupled due to the low frequencies. Audio filters are normally AC coupled.

Another very important application of a PLL is frequency multiplication in combination with an external frequency divider. For this the output of the PLL-VCO is processed through an external frequency divider (e.g. A-163, A-160, A-161, A-115) before it is fed to In1 of the phase comparator. In this case the frequency of the PLL-VCO will be a multiple of the master frequency. E.g. if the A-163 is used and adjusted to dividing factor 5 the frequency of the PLL-VCO will be 5 times the frequency of the master VCO. Consequently, frequency division (A-163) leads to frequency multiplication with the PLL circuit. In combination with the PLL low pass frequency several effects can be realized (frequency multiplication with portamento or wobbling). The frequency multiplication can even be used to drive a graphic VCO. If your graphic VCO e.g. has 8 steps (e.g. A-155) and you use a frequency divider with factor 8 in the PLL feedback the output of the graphic VCO has the same frequency as the master VCO. Another application is the generation of pseudo-harmonics (not real harmonics as only rectangle waves are available) or clock generation for switched-capacitor filters.
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DPW AV2 Dual Attenuverter/Voltage Source/Mixer/Comparator Module
DPW AV2 Dual Attenuverter/Voltage Source/Mixer/Comparator Module (attenuator/comparator/mixer/polarizer/utility synth module)
Cat: 959208
 
Dual attenuverter, voltage source, mixer and comparator module - 5HP.
Notes: The AV2 is a dual attenuverter, voltage source, mixer and comparator combined. You can use the functions by themselves or combined.

The combination of simple functions makes this a very useful module to have in your toolbox.

It can be used for control signals or for audio.

The bandwidth of the AV2 is more than 300 kHz. This makes it suitable for clean audio operation like mixing or subtracting signals without adding any frequency dependent phase shift.

AV2 is a Eurorack format dual attenuverter with some extra functions. It can be used as a utility unit for control voltages or as an audio unit.

It has besides the two attenuverter in and outputs a suming mixer output with an attenuverter. This sums the signals after the A and B attenuverters.

When nothing is connected to A or B they can be used as voltage sources. You can set the output to +/- 5V DC. This way you can run an LFO trough A, use B as a voltage offset and get the sum out on SUM, if you for instance need a unipolar signal.

The output A>B is a comparator output with a volume control. This can be used as a logical signal or as audio. The signal on A>B depends on whats coming out from A and B.

Next to each knob is a green/red LED showing the level and polarity of the output signal.

The green/red LED next to the A>B knob shows the signal before the red volume knob so you can se how the comparator reacts before turning up the volume.

Device specs

Module size: 5 hp wide, 30 mm deep with power cable connected.

Input impedance : 50 kohm

Output impedance: 1 kohm

Power requirements: +/-12V. Max power consumption 45 mA.

The bandwidth of the module is more than 300 kHz.

Connect the power cable with the red stripe down towards the -12V marking.

Dimensions
5 HP
30 mm deep

Current Draw
45 mA +12V
45 mA -12V
0 mA 5V
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out of stock $71.52
DPW Zero2 Dual Zero Difference Trigger Module
DPW Zero2 Dual Zero Difference Trigger Module (comparator/dual/stereo/logic synth module)
Cat: 959250
 
Two channel zero difference trigger module - 2HP.
Notes: The Zero2 Z-2 is a is a two channel zero difference trigger the can be CV controlled.

The Z-2 was mainly designed for audiorate wave-splicing together with a Switch but it can also be used to detect zero crossings of signals, to detect zero difference between two signals, to perform click free switching, to add jitter to signals, to synchronize signals and many other things.
It is mainly designed to be used in combination with other modules such as the Switch module but can also be used on its own.

The two sides of the Z-2 is built around a comparator and a one bit memory that is clocked by the comparator. This is the evaluating click less switching control circuit used in the D-2, 4-Band Distortion module but with all the ins and outs accessible.

The module is DC coupled so it can be used with anything from DC and control signals to audio rate and above audio rate.

Device specs

Module size: 2 hp wide, 29 mm deep with power connector.

Input impedance: 100 kohm

Power requirements:

+12V. Max power consumption 10 mA.

-12V. Max power consumption 3 mA.

Connect the power cable with the red stripe towards the marking -12V on the board.

The unit is protected for reverse power.
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out of stock $72.58
dsp.coffee ADSR Kraakenstuff ADSR Module
dsp.coffee ADSR Kraakenstuff ADSR Module (envelope generator synth module)
Cat: 938886 Rel: 26 Apr 23
 
Kraakenstuff's ADSR module in 2HP.
Notes: This is a very handy and snappy 2hp ADSR designed by Kraakenstuff, based on the "Fastest Envelope in the West" by René Schmitz.
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out of stock $70.73
dsp.coffee YYS Attenuverting Matrix Mixer Module
dsp.coffee YYS Attenuverting Matrix Mixer Module (attenuator/dual/sereo/mixer/panning/utility synth module)
Cat: 938891 Rel: 26 Apr 23
 
An attenuverting mtrix mixer module in 8HP.
Notes: YYS is a super useful spin on the 4x2 matrix mixer. Instead of comparatively boring unipolar attenuators to send to the destination channels, attenuverters were used. This allows combinations of DC signals that can cancel each other out to make interesting new waveforms, and with audio signals can cause strange stereo cancellations. dsp.coffee also included inverted outputs and bipolar LEDs as a bonus.

Features:
- 4 inputs with 2 attenuverters to send to output A or B
- Inverted outputs that follow A / B
- Bipolar LEDs for monitoring
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 1 in stock $70.47
Eowave O Line & Phone Stereo Output Module
Eowave O Line & Phone Stereo Output Module (attenuator/dual/stereo/utility synth module)
Cat: 949393
 
Line and phone stereo output module in 2HP.
Notes: A simple but efficient line and phone stereo output with a header on the back to connect it to the Supamix and an LED indicator to show clipping.

Outputs are stereo TRS

Main features:
Stereo input with normalisation
TRS stereo line and phones outputs with individuals volumes.
Linkable to the Supamix
AC coupled
LED indicator

Some applications:

Connect your rig to your non-eurorack devices or headphones
AC signal attenuator

Technical details:
2hp
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out of stock $83.09
Feedback CP3- Mixer Module
Feedback CP3- Mixer Module (mixer synth module)
Cat: 923562 Rel: 04 Apr 23
 
Mixer module - 6HP.
Notes: The CP3MINUS is the 6HP accurate recreation in Eurorack format of one of the most appreciated vintage modular audio mixers. The specific distortion makes it not only a great summing unit but also a great sound design tool.

Tech specs:

-width 6HP
-35mm depth behind the panel, including the power connector
-4 mono analog input
-4 input level pots
-1 dual level pot
-one inverting and one non-inverting output jacks
-standard 10 pin euro power (+12V / -12V)
-power consumption +12V 23mA -12V 25mA
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out of stock $64.42
Feedback CP3+ Mixer Module
Feedback CP3+ Mixer Module (mixer synth module)
Cat: 923509 Rel: 04 Apr 23
 
Mixer module - 10HP.
Notes: The CP3PLUS is an accurate recreation in Eurorack format of one of the most appreciated vintage modular audio mixers. The specific distortion makes it not only a great summing unit but also a great sound design tool. The included MULTI is a welcome bonus.

Tech specs:

-width 10HP
-22mm depth behind the panel, including the power connector
-4 mono analog input
-4 input level pots
-1 dual level pot
-one inverting and one non-inverting output jacks
-one 4 jack passive multiple
-standard 10 pin euro power (+12V / -12V)
-power consumption +12V 23mA -12V 25mA
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Feedback ENV-100 Envelope Generator Module
Feedback ENV-100 Envelope Generator Module (envelope generator synth module)
Cat: 923563 Rel: 04 Apr 23
 
Envelope generator module - 6HP.
Notes: This is probably the fastest envelope generator in Modularland.

Why? Because it is based on the fastest one. The classic Japanese modular from the seventies everyone loves.

Tech specs:

- Panel width 6HP
- 35mm depth behind the panel, including the power connector
- 4 control pots : Attack, Decay, Sustain, Release
- 1 gate switch : triggers ADSR cycle
- 1 time switch : switches between fast and slow envelope times
- One normal and one inverting output jack 8V peak
- Standard 10 pin euro power +12V/-12V
- Power consumption +12V 20mA , -12V 15mA
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Feedback ENV-310 Envelope Generator Module
Feedback ENV-310 Envelope Generator Module (envelope generator synth module)
Cat: 923564 Rel: 04 Apr 23
 
Envelope generator module - 6HP.
Notes: This is an envelope generator based on the SMD AS3310.

The AS3310 is a modern recreation of the classic Curtis CEM3310 chip, used in many famous mono and poly analogue synth from the eighties.

Feedback took the best ideas from all the classic 3310 circuits and tried to squeeze the maximum from this fantastic chip.

Tech Specs :

- Panel width 6HP
- 35mm depth behind the panel, including the power connector
- 4 control pots : Attack, Decay, Sustain, Release
- 1 gate switch : triggers ADSR cycle
- 1 mode switch : Normal (ADSR), Damp (ADRR), Auto (ASR)
- 1 re trigger input
- One normal and one inverting output jack 10V peak
- Standard 10 pin euro power +12V/-12V
- Power consumption +12V 55mA , -12V 16mA

Attack Time 2.5ms-1.5s
Decay Time 6ms-4s
Sustain Level 0-10V
Release Time 6ms-4s
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Feedback ENVF Envelope Follower Module
Feedback ENVF Envelope Follower Module (CV modulation/envelope follower/envelope generator/utility synth module)
Cat: 972036 Rel: 27 Oct 23
 
Envelope follower module - 4HP.
Notes: This is an envelope follower based on a classic module from the seventies but with some improvements to suit modern needs.

The IN signal is bifurcated to the envelope follower circuit and also to a THRU output, so the original signal is also available for external processing.

The envelope follower has three controls, a switch to select response time (fast, medium, slow), a pot to adjust GATE threshold and a pot to adjust the envelope CV level.

This little module will help you shape the timbre and/or the level envelopes of your sounds. From dynamic envelope filtering to compressor like side chaining there are lots of possibilities to mangle your audio.

Tech specs:

- 4HP width
- 35mm depth behind front panel including the power connector
- standard 10 pin euro power +12V / -12V
- power consumption +12V 18mA , -12V 16mA
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Feedback LFO-10 Low Frequency Oscillator Module
Cat: 923565 Rel: 04 Apr 23
 
Low frequency oscillator module - 4HP.
Notes: This little module is an evolution of the LFO of the famous MS monophonic synth from the seventies, adapted to eurorack format.

Tech specs:

4HP width
35mm depth behind front panel including the power connector
2X control pots for FREQUENCY and WAVEFORM

1X FREQUENCY RANGE switch: LOW and HIGH
LOW - 18mHz (55sec) - 0,7Hz (1.4sec)
HIGH - 0,63Hz (1.6sec) - 24Hz (42msec)

2X outputs : SQUARE 0/10V Vpp and TRIANGLE -5V/5V Vpp
standard 10 pin euro power +12V / -12V
power consumption +12V 20mA , -12V 15mA
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Feedback PhoneZ Headphone Amplifier Module
Feedback PhoneZ Headphone Amplifier Module (dual/stereo/external/utility synth module)
Cat: 923578 Rel: 04 Apr 23
 
Headphone amplifier module - 6HP.
Notes: A premium headphone amp module capable to drive low and high impedance phones to high enough SPL, with good dynamic range and very low distortion.

Tech specs:

- Panel width 6HP
- 35mm depth behind the panel, including the power connector
- 1 control pot : Phones Level
- 1 mode switch : Switch from stereo to mono for both channels
- 2 input jacks
- 1 stereo output jack
- standard 10 pin euro power +12V/-12V
- power consumption +12V 100mA , -12V 50mA
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Feedback PRE BX Distortion/Preamp/EQ Module
Feedback PRE BX Distortion/Preamp/EQ Module (distortion/equalizer/external/preamp synth module)
Cat: 923581 Rel: 04 Apr 23
 
Distortion, preamp and EQ module - 4HP.
Notes: Sound design channel strip based on a famous late eighties small mixer used by many electronic musicians for the techno sound of the nineties.

Tech specs:

- width 4HP
- 38mm depth behind the panel, including the power connector
- 1 audio input
- 1 gain pot
- 2 eq pots : low and hi
- 1 output level pot
- 1 audio output
- standard 10 pin euro power (+12V / -12V) (works also at +15V / -15V)
- power consumption +12V 6mA , -12V 6mA
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out of stock $81.78
Feedback PRE BX Sound Design Channel Strip Module (B-STOCK)
Feedback PRE BX Sound Design Channel Strip Module (B-STOCK) (distortion/equalizer/external/preamp synth module)
Cat: 949363 Rel: 01 Jan 90
 
B-STOCK: Box opened, but product is in excellent condition and in perfect working order
Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


Sound design channel strip based on a famous late eighties small mixer used by many electronic musicians for the techno sound of the nineties.

Tech specs:

- width 4HP
- 38mm depth behind the panel, including the power connector
- 1 audio input
- 1 gain pot
- 2 eq pots : low and hi
- 1 output level pot
- 1 audio output
- standard 10 pin euro power (+12V / -12V) (works also at +15V / -15V)
- power consumption +12V 6mA , -12V 6mA
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out of stock $54.64
Feedback PRE CR Distortion/Preamp/EQ Module
Feedback PRE CR Distortion/Preamp/EQ Module (distortion/equalizer/external/preamp synth module)
Cat: 923605 Rel: 04 Apr 23
 
Distortion, preamp and EQ Module - 4HP.
Notes: Sound design channel strip based on a famous late eighties small mixer used mostly for the well known TB303 distortion sound.

Tech specs:

-width 4HP
-42mm depth behind the panel, including the power connector
-1 audio input
-1 input gain pot
-2 eq pots : low and hi
-1 output level pot
-1 audio output
-standard 10 pin euro power (+12V / -12V) (works also at +15V / -15V)
-power consumption +12V 22mA , -12V 25mA
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Feedback PRE KM Distortion/Preamp/EQ Module
Feedback PRE KM Distortion/Preamp/EQ Module (distortion/equalizer/preamp/external synth module)
Cat: 923603 Rel: 04 Apr 23
 
Distortion, preamp and EQ Module - 4HP.
Notes: Sound design channel strip based on a famous late seventies small mixer used by many electronic music bands.

Tech specs:

-width 4HP
-38mm depth behind the panel, including the power connector (back capacitors variant)
-1 audio input
-1 gain pot
-2 eq pots : low and hi
-1 output level pot
-1 audio output
-standard 10 pin euro power (+12V / -12V) (works also at +15V / -15V)
-power consumption +12V 10mA , -12V 10mA
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Feedback Punk Multi-Purpose Sound Destruction module
Feedback Punk Multi-Purpose Sound Destruction module (distortion/effect/equalizer/fuzz synth module)
Cat: 923606 Rel: 04 Apr 23
 
Multipurpose sound destruction module - 6HP.
Notes: This module is the result of almost a year of brainstorming to make a multipurpose sound destruction module.

After checking several classic distortion/fuzz/overdrive/clipping circuits, we decided to blend several ideas in one module and give you enough options, so you can mangle your sound to your taste.

The circuit blends direct clean sound with two different type of distortions.

One circuit is a FET preamp based on a classic circuit of a mini portable cassette recorder & mixer combo from the eighties. It has variable gain and level control.

The other circuit is based on classic guitar pedal distortion/fuzz with switchable diode or MOSFET distortion. This circuit also has variable gain and level control.

The two distortion circuits are followed by a Baxandall two band equaliser (the one from our PRE-KM module) to shape the distorted sound to your pleasure.

Finally the mangled (double distorted/clipped equalised) sound is blended with the clean sound for the right balance.

This module sounds great on drums, bass synth or even acoustic sources. Enjoy your new sound shaping toy.

On the technical side we took great care for the PCB design and although this is an SMD circuit board we decided to use through hole parts where we considered it matters (some capacitors and the FETs).


Tech specs:

- Panel width 6HP
- 35mm depth behind the panel, including the power connector
- 8 control pots : Input Level, Gain 1, Level 1, Gain 2, Level 2, Hi Freq, Lo Freq, Blend
- 1 mode switch : Switch the type of overdrive DIODE or FET
- one input jack
- one output jack
- standard 10 pin euro power +12V/-12V
- power consumption +12V 45mA , -12V 25mA
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out of stock $99.92
Feedback Squeeze 2 Compressor Module
Feedback Squeeze 2 Compressor Module (dynamics/effect synth module)
Cat: 923611 Rel: 04 Apr 23
 
Compressor module - 4HP.
Notes: SQUEEZE2 is the improved variant of SQUEEZE:

- SMD transistors are changed to matched through hole ones
- all capacitors are now through hole Panasonic LowESR
- added trimming circuit to adjust 0 gain for the center of make-up gain pot so the SQZ will have 0 amplification on middle adjustments

4HP Compressor designed for continuous adjustment of gain, threshold and compression ratio with a single potentiometer.

There is also a knob for input level and a knob for make-up gain.

The module is based on high-performance THAT4305 Blackmerr VCA chip.

Tech specs:

-width 4HP
-35mm depth behind the panel, including the power connector
-1 audio input : IN
-1 audio level pot : INPUT
-2 control pots : LESS/MORE (compression), MAKE-UP Gain
-1 output : OUT
-standard 10 pin euro power +12V / -12V
-power consumption +12V 25mA -12V 25mA
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Feedback Static Noise Generator Module
Feedback Static Noise Generator Module (noise/random synth module)
Cat: 923610 Rel: 04 Apr 23
 
Noise generator module - 10HP.
Notes: The STATIC module is a comprehensive collection of noise sources generated with different methods.

Tech specs:

-width 10HP
-38mm depth behind the panel, including the power connector
-2 control pots : MORPH, SPECTRUM
-1 switch : spectrum type TR/CHIP
-8 outputs : MSWHITE, MSPINK, ZNWHITE, ZNPINK,
DARK, MORPH, TROUT, RNDVOLT
-standard 10 pin euro power +12V / -12V
-power consumption +12V 35mA , -12V 30mA
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Feedback SUB Complex Suboctaver Module
Feedback SUB Complex Suboctaver Module (oscillator/utility module)
Cat: 972045 Rel: 27 Oct 23
 
Complex suboctaver module - 4HP.
Notes: As the name suggests this module can produce sub frequencies of -1 and -2 octaves relative to the square wave signal provided at the input jack.

But this is not just a simple SUB generator. It also has a little mixer that will let you add different levels of -1 and -2 octave signals to the original square wave. You can select the -2 octave signal to be a square wave or a pulse wave.

The module has individual outputs for the mixed signal, the -1 octave and the -2 octave.

This little modules can produce enough timbral variation to make you bass sound exciting.

Tech specs:

- 4HP width
- 35mm depth behind front panel including the power connector
- standard 10 pin euro power +12V / -12V
- power consumption +12V 12mA , -12V 9mA
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Feedback T-Comb Trigger Combiner Module
Feedback T-Comb Trigger Combiner Module (logic/utility synth module)
Cat: 923618 Rel: 04 Apr 23
 
Trigger combiner module - 5HP.
Notes: This module is passive.

It means trigger combiner. It helps to extend the functionality of sequencers, counters, divider, etc.

Do you have a sequencer with individual step trigger/gate outs? You can drive with the same one lane step sequencer more destinations by combining with T-COMB some of the individual trig/gate outs.

For example a simple one lane sequencer with T-COMB can drive at the same time a monophonic bass line, a bass drum and a snare drum. Add more T-COMBs depending on your needs.

Another way to use T-COMB is combining different outs of a counter, divider or multiplier. You can achieve interesting and complex rhythm patterns by combining two or three outputs and drive a percussion or hi-hat.

T-COMB can also be used as a way to rectify and combine CV signals, for example two LFOs with different waveforms and running at different frequencies.

Your imagination is the limit.

CMS-LAB module

Tech specs:

-width 5HP
-20mm depth behind the panel
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out of stock $65.48
Feedback VCA2600 Voltage Controlled Amplifier Module
Cat: 923612 Rel: 04 Apr 23
 
Voltage controlled amplifier module - 4HP.
Notes: VCA2600 needs no introduction. The best sounding VCA in 4HP with matched and thermo coupled transistors.

Tech specs:

-width 4HP
-35mm depth behind the panel, including the power connector
-standard 10 pin euro power +12V / -12V
-power consumption +12V 25mA -12V 25mA
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Frequency Central Asteroids Gate Generator & Actuator Module
Cat: 1003593 Rel: 19 Mar 24
 
Gate generator & actuator module - 8HP
Notes: Arcade performance buttons for gating and actuating.

You can use Asteroids in two different ways:

Gate generator using the two outputs. A 5V gate will be output when the relevant button in pressed.

Momentary manual actuator. Whatever is present at the relevant input will be output when the button is pressed.

Product Specifications

12V draw: 7mA
-12V draw: 0mA
5V draw: 0mA
Depth: 25mm
Width: 8HP
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 1 in stock $98.35
Happy Nerding 3x MIA 1U 6-Channel Attenuverting Mixer/Offset/Scale/Polarizer Module (black)
Cat: 1000444 Rel: 12 Feb 24
 
6-channel attenuverting mixer, offset, scale & polarizer module - 24HP
Notes: 3xMIA is a 6-channel attenuverting mixer/offset/scale/polarizer

3 blocks of 2-channel attenuverting mixers, using dual concentric pots. Each channel can be switched to mix with the subsequent channel, allowing for 2-2-2, 4-2, 6 mix configurations.

With nothing plugged into an input, an offset is normalled to that channel. The inner knobs control the A inputs, while the outer knobs control the B inputs.

DC coupled, so it can be used for audio, CV, or both at the same time.

80 mA +12V
80 mA -12V
35 mm Depth
24HP wide
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out of stock $89.15
Happy Nerding 3x MIA 1U 6-Channel Attenuverting Mixer/Offset/Scale/Polarizer Module (silver)
Cat: 1000448 Rel: 12 Feb 24
 
6-channel attenuverting mixer, offset, scale & polarizer module - 24HP
Notes: 3xMIA is a 6-channel attenuverting mixer/offset/scale/polarizer

3 blocks of 2-channel attenuverting mixers, using dual concentric pots. Each channel can be switched to mix with the subsequent channel, allowing for 2-2-2, 4-2, 6 mix configurations.

With nothing plugged into an input, an offset is normalled to that channel. The inner knobs control the A inputs, while the outer knobs control the B inputs.

DC coupled, so it can be used for audio, CV, or both at the same time.

80 mA +12V
80 mA -12V
35 mm Depth
24HP wide
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out of stock $89.15
Happy Nerding Isolator Headphone & Balanced Line Output Module (silver)
Cat: 867449 Rel: 18 May 23
 
Isolator is your 4 HP solution for galvanic isolation between its inputs and ¼ TRS balanced outputs.
Notes: Isolator is your 4 HP solution for galvanic isolation between its inputs and 1/4 TRS balanced outputs, interfacing your Eurorack modular system without electric connection with the external equipment, which prevents possible ground loop issues.

If no signal is plugged to the right input, then the left input will be sent to both Left and Right outputs. "Level" knob adjusts output level for Left and Right channels, Phones knob sets the level for the headphones output.

Specs

50 mA +12V
50 mA -12V
45 mm Depth
4 HP wide
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Happy Nerding LED Meter Module (black, green/yellow/red LEDs)
Cat: 944550 Rel: 18 May 23
 
A handy utility module designed to show audio levels in 4HP.
Notes: LED Meter is a handy utility module designed to show audio levels. Three colour versions are available:

green colour with yellow-red peak segments.
all blue colour
all yellow colour

There are total 30 led segments, each one roughly corresponds to 1 dB of level, so it is 30 dB of measurement level available with this module.
The module has an input for the signal to be displayed, and its buffered copy is sent to the output for further processing, so no external splitter is needed.
Two trimmers are accessible via holes on the front panel: left trimmer adjusts brightness and right trimmer is used for the level adjustment. So the module can represent full scale signals ranging from 1 V to 12 V.
There is operation mode jumper on the back side. When the jumper is installed - bipolar operation is active, and when the jumper is removed - ordinary audio meter is active.

Dimensions
4 HP
40 mm deep

Current Draw
150 mA +12V
20 mA -12V
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out of stock $94.67
Happy Nerding LED Meter Module (silver, green/yellow/red LEDs)
Cat: 944549 Rel: 18 May 23
 
A handy utility module designed to show audio levels in 4HP.
Notes: LED Meter is a handy utility module designed to show audio levels. Three color versions are available:

- green colour with yellow-red peak segments.
- all blue colour
- all yellow colour

There are total 30 led segments, each one roughly corresponds to 1 dB of level, so it is 30 dB of measurement level available with this module.
The module has an input for the signal to be displayed, and its buffered copy is sent to the output for further processing, so no external splitter is needed.
Two trimmers are accessible via holes on the front panel: left trimmer adjusts brightness and right trimmer is used for the level adjustment. So the module can represent full scale signals ranging from 1 V to 12 V.
There is operation mode jumper on the back side. When the jumper is installed - bipolar operation is active, and when the jumper is removed - ordinary audio meter is active.

Dimensions
4 HP
40 mm deep

Current Draw
150 mA +12V
20 mA -12V
Read more
MRP:$104.13 SAVE 29%
 1 in stock $73.62
Happy Nerding PanMix Jr 3-Channel Mixer Module With Manual Panning & Volume Controls (black)
Cat: 960494 Rel: 04 Aug 23
 
3-channel mixer module with manual panning and volume controls - 6HP.
Notes: PanMix Jr is a high quality 3 channel mixer with manual panning and volume controls with dual concentric knobs. Each channel's output is separately available. Also channels 1 and 2 can be switched to be mixed with the subsequent channel, allowing for 1-1-1, 1-2, 3 mix configurations. Equal power pan law (3dB) is provided. Left and Right led indicators available for all three channels.

Several modules can be chained together via connections on the back side. This connection is possible with other Happy Nerding stereo modules too. At the moment PanMix Jr stereo output can be internally sent to another PanMix Jr, 3x Stereo Mixer and Isolator module. Or stereo signal can be received from another PanMix Jr, OUT, 3x Stereo Mixer, latest revision of PanMix.

55 mA +12V
55 mA - 12V
35 mm Depth
6 HP wide
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 1 in stock $94.65
Click for better price!
or call +44 20 7424 1960
quote 960494
Happy Nerding PanMix Jr 3-Channel Mixer Module With Manual Panning & Volume Controls (silver)
Cat: 960498 Rel: 04 Aug 23
 
3-channel mixer module with manual panning and volume controls - 6HP.
Notes: PanMix Jr is a high quality 3 channel mixer with manual panning and volume controls with dual concentric knobs. Each channel's output is separately available. Also channels 1 and 2 can be switched to be mixed with the subsequent channel, allowing for 1-1-1, 1-2, 3 mix configurations. Equal power pan law (3dB) is provided. Left and Right led indicators available for all three channels.

Several modules can be chained together via connections on the back side. This connection is possible with other Happy Nerding stereo modules too. At the moment PanMix Jr stereo output can be internally sent to another PanMix Jr, 3x Stereo Mixer and Isolator module. Or stereo signal can be received from another PanMix Jr, OUT, 3x Stereo Mixer, latest revision of PanMix.

55 mA +12V
55 mA - 12V
35 mm Depth
6 HP wide
Read more
 1 in stock $94.65
Click for better price!
or call +44 20 7424 1960
quote 960498
Herzlich 180 Inverter Quad Phase Inverter Module
Herzlich 180 Inverter Quad Phase Inverter Module (phase shifter/quad/utility module)
Cat: 1003848 Rel: 06 Mar 24
 
Quad phase inverter module - 2HP
Notes: Turn that frown upside down - or make that negative waveform positive. Or vice versa! The Herzlich 180 Invert will shift the phase of any four signals you put in by 180 degrees, effectively inverting them.

This has countless applications: fix phase errors in your mix, turn a low pass signal into a high pass, cancel out unwanted signals, change the behaviour of an LFO or gate, there are countless situations and applications where inverters are incredibly useful.

You'll be happy to own an inverter in any system - but why own just one when you get four here? Add a useful tool to your system today, with the 180 Invert.

Dimensions: 2 HP
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out of stock $70.47
Herzlich ABCD/OR Switched OR Logic Module
Cat: 958843 Rel: 31 Oct 23
 
Switched OR logic module - 2HP.
Notes: You've got triggers, gates, clocks and other such binary signals that you want to mix - but you'd much prefer if they did not interact and interrupt each other!

What you need is OR logic - and this passive OR logic in 2hp makes it easy to mix up to four signals in one, and even allows you to switch any off the signals on or off at will. Your trigger sequencing will become truly next level.

The ABCD/OR: It's the logical choice.
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 1 in stock $56.79
Click for better price!
or call +44 20 7424 1960
quote 958843
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