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首页  Equipment  Synth modules
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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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Items 1 to 50 of 53 on page 1 of 2
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4ms Looping Delay Crystal-Clear Clock-Synced Delay Module
Cat: 944887 Rel: 06 Jul 23
 
Crystal-clear clock-synced delay module in 16HP.
Notes: Crystal-clear clock-synced delay for loop up to 90 seconds, echoes, sound-on-sound, Karplus-Strong etc.

Features:
Loop or echo time is synchronized to a clock
87 seconds of delay/loop time maximum
48kHz/24-bit sampling rate, loop recorded at 16-bit (24-bit optional)
Extremely quiet, low noise and low jitter design
Tap tempo button and clock Ping input set the basis for one "beat"
Delay/loop time set as a number of musical beats (or fractions of beats) using the Time knob, switch, and CV jack
Sample-accurate clock output for perfect synchronization
Loop clock outputs for each channel
Time switches change range of Time knob from 1/8th notes up to 32 bars
Digital feedback, up to 110%
Delay Feed control, independent of dry/wet signal mix
Infinite Hold mode disables recording input and fixes regeneration at exactly 100%
Reverse mode plays memory contents backwards
With an infinite loop locked, knobs or CV can "window" around memory, by shifting the loop
Trigger inputs for toggling Infinite Hold and Reverse
Send and Return for applying effects to feedback with external modules
CV jacks to control Time, Level, Feedback and Dry/Wet Mix
16HP Eurorack module

Specs:
48kHz, 24-bit low-noise hi-fidelity
Up to 90 seconds of loop time
16HP
+12V: 110mA
-12V: 45mA

Included with the Looping Delay:
16-to-16 pin power cable
4 x M3 Knurlie screws
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MRP:$278.98 SAVE 16%
 1 in stock $233.70
4ms Sampler Mono/Stereo Triggered Sampler Module
Cat: 944892 Rel: 06 Jul 23
 
A variation of the Stereo Triggered Sampler module in 16HP.
Notes: Great value from 4ms's twist on the Stereo Triggered Sampler module, this time capable of playing and manipulating stereo or mono WAV files from an SD card.

Supplier's Notes:
The Sampler is a variation of the Stereo Triggered Sampler.

Record, play and loop stereo .wav files with an SD Card. Includes the same 2022 Sampler Pack from the Stereo Triggered Sampler.

Features:

The Sampler plays stereo or mono .wav files from an SD Card. Samples are arranged into banks by placing .wav files into folders (each folder is a bank). A maximum of 10 samples can be loaded in a bank. There is a maximum of 60 banks (600 samples maximum total).
Sample files are limited to 4GB each, which is over 6 hours at 44k/16b/stereo.

Hundreds of samples included on microSD card
Extremely quiet, low noise and low jitter design
Stereo or Mono output

A knob and CV jack selects the Sample to play, and the Start Position knob and CV jack control where in the sample playback will begin. The Length knob and CV jack determine how much of the sample is played back: from tiny grains, to percussive hits, to longer loops... or just the entire file.

Pressing Play or firing a trigger into the Play Trig jack will play the sample. Holding the Play button down for a second will toggle looping.

There's also a Reverse button and jack for backwards playback, and an End Out jack for synchronizing loops, or cascading sample playback with other events.

To record samples, hold Play and Reverse for two seconds. Press Play again or fire a trigger into the Play/Rec Trig jack to start and stop recording. Each recording will create a new stereo 48kHz 24bit .wav file in the current bank's folder. Recordings can be as long as your card has the capacity for: a 256GB card is 18 days of continuous recording (432.9 hours). Audio data is split into maximum 4GB wav files on the microSD card.

Play button/trigger jack: Tapping the button or receiving a trigger starts/re-starts the sample
Sample CV/knob: select which sample within the channel's bank
Pitch CV and Pitch knob: playback pitch (-10 to +4 octave range)
Start Pos CV/knob: position in the sample to begin playback (loop start point)
Length CV/knob: playback time (loop end point)
Length knob at max: entire file is played
Length knob 50%-99%: 200ms - 5s of the sample is played (beginning at the Start Position)
Length knob <50%: Percussive decay envelope is applied to the playback (attack-only envelope if playing Reverse)
Length <1%: Tiny grains are played (can be used to sweep through sample file data manually)
Reverse button/jack: toggles forward/backwards
Bank button: selects channel's bank
Reverse + Start Pos button/knob combo allows for setting volume of playback
Maximum file size for playback: 4GB per file (6.7 hours per file at 44.1kHz/16b/stereo)
microSD Card is hot-swappable when Busy light is off: no power-down required to change cards.
Samples that are pre-loaded into memory can continue playing while card is swapped.

File Organization:

Using a computer, the intuitive automatic bank loading features make dragging and dropping your entire sample library a snap. No files need to be renamed. Just create folders and put up to 10 samples in each. If you want a folder to be associated with a particular colour of the Bank button, name the folder a colour name (such as "Blue - Loops").

Ships with a high-speed 16GB microSD card, loaded with hundreds of samples created for 4ms, from musicians such as Richard Devine, Wobbly, Moor Mother, Robert Aiki Aubrey Lowe, Joseph Pailo, Russell E.L. Butler, Hugo Paris & Marc Kate, Paul Barker, Baseck, Animal Collective, Cristian Vogel, Jay E, Marcus Fischer, Chris Carter, Daedelus, Nero Bellum, Anna Sitko, Thomas Fang, Bogdan Raczynski, and more (Sample List)

Intuitive bank/colour organization system; no need to rename your wav files
Record new samples directly to a bank with the Record Input jacks...
... or drag your folders of sound files onto the microSD card, and each folder will become a bank.
Folders starting with a colour name will be loaded into that colour bank
Example "Blue - Frooty Loops" will load into the Blue bank
Sub-folders are ignored, only folders in the root directory are scanned for wav files
Works best with UHS Speed Class 3 cards with |3| symbol printed on the card

Specs:

Electrical and Mechanical Specifications:
Module Size:
16 HP Eurorack format module
10-pin Eurorack power header
1.3" (33mm) maximum depth with power cable
Power consumption:
+12V: 135mA
-12V: 41mA
+5V rail: not used
Connect red stripe of power cable towards the bottom of the module, which is marked with a white stripe and the words -12V and POWER
Audio Inputs:
20Hz to 10kHz (+/-0.1dB); -6dB rolloff @ 20kHz
21V peak-to-peak maximum before clipping
Audio Outputs:
0Hz (DC) to 22kHz with maximum -1.8dB difference between file data and output
+10.5V to -10.5V maximum output
Trigger inputs:
Latency: 0.7us typical

Included with the Sampler:
16GB micro SD card (class 10)
SD adaptor
10-to-16 pin power cable
M3 Knurlie screws
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MRP:$304.24 SAVE 13%
 2 in stock $263.18
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quote 944892
ADDAC System ADDAC107 Acid Source Synth Voice Module
Cat: 944224 Rel: 14 Sep 23
 
A synth voice module in 9HP.
Notes: A fresh twist on a simple 303-style acid synth, featuring a triangle/sawtooth/square wave VCO, multi-mode resonant filter, simple AD envelope and a VCA which can be overdriven. Excellent value.

Supplier's Notes:
ADDAC started this module with the idea of developing a complex drum source however, somewhere along the process, it was clear how much better it performed as a synth voice and this lucky accident was embraced.

It features a VCO with a [FREQUENCY] and [FINE TUNE] knob plus a dedicated CV Input and Attenuator knob (tunable over 4 octaves).

The VCO waveform output is achieved by selecting either a Triangle or Saw through a switch. the selected waveform can then be mixed/balanced against the square wave. The resulting mix is then sent to the Filter.

The Filter features a [CUTOFF] and [RESO] resonance knob plus a Cutoff CV Input and Attenuverter knob.

A 3 position switch is used to select the filter type: Highpass, Bandpass or Lowpass.

The resulting output is then sent to the VCA.

The VCA features an Input with [INPUT GAIN] knob which at maximum can amplify the incoming signal by a factor of 2.

This is a very important control, it accepts any signal Trigger, Gate or CV. Whatever input is plugged in the signal is then fed through an AD with a very short attack and controllable decay through the [VCA DECAY] knob plus the CV Input and Attenuverter knob. The resulting slewed signal is then used to control the VCA gain.

This signal is also sent to the CV OUTPUT as well as the LED monitor.

The Accent input adds to the Input signal creating a different amplitude output.


The CV OUTPUT is normalled to the Frequency and Cutoff inputs.

Tech Specs:
9HP
4cm deep
80mA +12V
80mA -12V

The [INPUT GAIN] knob

Usually Attack/Decay envelopes have a maximum voltage of +5v, no matter if the input gate is +5v or above the AD will clip at +5v. In this case, this clipping method was not used, and instead ADDAC allowed the incoming voltage to determine the maximum AD voltage, meaning that if a +5v gate is present then the AD maximum voltage will be +5v but if a gate of +10v is sent then the AD maximum voltage will be +10v.
This also means that with higher input voltages the decay, although falling at the same speed, will be longer than with lower voltages as it has a longer range to go back to 0v.

As previously mentioned, The [INPUT GAIN] knob can amplify the incoming input by a factor of 2, allowing to use a standard +5v gate or envelope and being able to make the resultant AD go up to +10v.

The AD signal is responsible for opening the VCA. Up to +5v the VCA will open to unity gain above this value the VCA will start to amplify and eventually saturate and distort. This saturation will add harmonics to the signal which will change its gentle timbrical nature to a more unique and peculiar timbre that will make the module shine in Acid contexts.

Adding high levels of Resonance or even filter self oscillation in combination with high VCA saturation will create even more harmonics that ADDAC highly encourage the user to explore.
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 4 in stock $208.43
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quote 944224
After Later Audio Scenes Segment Generator Module
After Later Audio Scenes Segment Generator Module (CV modulation/envelope generator/LFO/sample & hold/sequencer/slew limiter sytnh module)
Cat: 949327 Rel: 07 Jun 23
 
An exact hardware replica of the Mutable Instruments Stages in 14HP.
Notes: Six segment generator. Looping or one shot envelope generator. Chainable, so it can be expanded to link multiple units.

An exact hardware replica of the Mutable Instruments Stages.

Dimensions
14 HP
25 mm deep

Current Draw
80 mA +12V
20 mA -12V
0 mA 5V
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 1 in stock $271.60
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After Later Audio Scenes Segment Generator Module (B-STOCK)
After Later Audio Scenes Segment Generator Module (B-STOCK) (CV modulation/envelope generator/LFO/sample & hold/sequencer/slew limiter sytnh module)
Cat: 993716 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.***


Six segment generator. Looping or one shot envelope generator. Chainable, so it can be expanded to link multiple units.

An exact hardware replica of the Mutable Instruments Stages.

Dimensions
14 HP
25 mm deep

Current Draw
80 mA +12V
20 mA -12V
0 mA 5V
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MRP:$283.19 SAVE 10%
 1 in stock $254.74
AJH Synth/Tone Science Triple Cross XFader Panner Module (black)
AJH Synth/Tone Science Triple Cross XFader Panner Module (black) (attenuator/dual/stereo/mixer/panning/utility/VCA synth module)
Cat: 944986 Rel: 12 Jun 23
 
A crossfader panner module in 14HP.
Notes: Pan and cross fade up to three signals with AJH's versatile Triple Cross. Four different modes allow you to set up the three channels in numerous ways, for both audio and CV processing.

Supplier's Notes:
The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative
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 1 in stock $251.61
AJH Synth/Tone Science Triple Cross XFader Panner Module (silver)
AJH Synth/Tone Science Triple Cross XFader Panner Module (silver) (attenuator/dual/stereo/mixer/panning/utility/VCA synth module)
Cat: 944987 Rel: 20 Oct 23
 
A crossfader panner module in 14HP
Notes: The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative
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 1 in stock $272.66
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quote 944987
Bocuma Esquivel SV VCF 3-Input State Variable Voltage Controlled Filter Module
Cat: 929605 Rel: 28 Apr 23
 
3-input state variable voltage controlled filter module in 14HP.
Notes: Esquivel is Bocuma's homage to space-age pop. This is a voltage controlled filter in a 14HP Eurorack, around a diode ladder topology. It is capable of switching between the 3 classic states: low-pass (LPF), high-pass (HPF) and band-pass (Band Pass).

Control cut-off, resonance and two inputs for CV. Likewise, a mixer for 3 signals was added at the input, giving it the possibility of mixing 3 different waveforms to obtain more harmonic-enriched signals and to maximize the sonic possibilities of its resonance.

Specs:

14HP
+12V > 12mA -12V > 12mA
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 1 in stock $235.81
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Bocuma Sum0 Voltage Controlled Oscillator Module With Output Mixer & Onboard LFO
Cat: 929616 Rel: 28 Apr 23
 
Voltage controlled oscillator with output mixer and onboard LFO module in 22HP.
Notes: Introducing SUM0, a voltage-controlled oscillator with expanded harmonic possibilities, in a Eurorack format.

The 4 classic waveforms are generated by a meticulously designed oscillation engine.

You can modulate its frequency and its pulse width thanks to its integrated LFO, capable of reaching audible frequencies to achieve expressive modulations with the simple touch of a switch.

Expand the voice of your system by creating complex waveforms and high harmonic content thanks to its output mixer. This mixer also has an input to integrate an external signal to the mix output.

Of course, all its parameters (FM, PWM, SYNC, V/OCT) are at your fingertips through its patch points on the front panel.

And of course, assembled with a load of passion in Bocuma's studio-workshop in Guadalajara.

Nerdy-specs:

22HP
+12V > 12mA -12V > 12mA
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 1 in stock $294.77
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Bocuma Sum0 Voltage Controlled Oscillator Module With Output Mixer & Onboard LFO (B-STOCK)
Cat: 949354 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***


Introducing SUM0, a voltage-controlled oscillator with expanded harmonic possibilities, in a Eurorack format.

The 4 classic waveforms are generated by a meticulously designed oscillation engine.

You can modulate its frequency and its pulse width thanks to its integrated LFO, capable of reaching audible frequencies to achieve expressive modulations with the simple touch of a switch.

Expand the voice of your system by creating complex waveforms and high harmonic content thanks to its output mixer. This mixer also has an input to integrate an external signal to the mix output.

Of course, all its parameters (FM, PWM, SYNC, V/OCT) are at your fingertips through its patch points on the front panel.

And of course, assembled with a load of passion in Bocuma's studio-workshop in Guadalajara.

Nerdy-specs:

22HP
+12V > 12mA -12V > 12mA
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 1 in stock $247.82
Buchla & TipTop Audio Mixer & Preamplifier Model 207t Module
Cat: 950885 Rel: 26 Jan 24
 
Mixer & preamplifier module - 28HP.
Notes: A characteristically unique take on mixing from Buchla, with six mono inputs and a built-in mic/guitar pre-amp. Each channel can be cued to a monitor mix, while the first and last channels also include voltage-controlled panning.

Supplier's Notes:
The Tiptop 207t is a modern reimagining of the classic Don Buchla 207 Mixer/Preamplifier from the 1970s 200 Series. This stereo mixer comes with a built-in preamp that allows you to boost external instruments and microphones, making it a versatile tool for any modular setup. The 207t also features a six-channel mixer with a variety of signal routing options, including the ability to route channels to the monitor and L&R signal outputs, with per-channel control over loudness and panning.

Each channel has a Mon switch that sends the channel's signal to the monitor outputs, which are always full-volume and summed to mono, making it useful for basic monitoring applications or rudimentary mixing. The Prog switch sends the signal to the L&R signal outputs, with loudness controlled by the Level Adjustment slider and panning determined by the Channel Assignment knobs. The first and sixth channels offer voltage control of panning; these channels are hard-panned when no CV is applied.

The preamp section features a 1/4" input and multiple gain settings, making it suitable for use with external line level instruments, electric guitars, or dynamic microphones. The continuous amplification control provides added flexibility for your audio needs. Finally, the Expansion In is a stereo input that sums to the left and right main outputs, which is great for chaining multiple 207t modules or adding another stereo source at the final output.

While the 207t's functionality may be simple, it is an essential part of any 200t system, serving as the glue that holds everything together. The Tiptop 207t is a fantastic mixer/preamp option that delivers quality sound and reliable performance.

Buchla 207t Features

Mixer/preamp module based on Don Buchla's original 207 design
Six-channel mixer with per-channel level control and panning
Voltage-controllable panning on channels 1 and 6
Manual panning on channels 2-4
Program switches can act as channel mutes for main outputs
Mon switches route signal (in mono) to Monitor output
Expansion input useful for stereo chaining and more
Re-designed preamp for high audio fidelity
Preamp suitable for use with external instruments, electric guitars, dynamic microphones, and more

Eurorack module
28hp wide
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Dannysound Cali Oscillator Wave Shaping Oscillator Module
Cat: 967569 Rel: 15 Sep 23
 
Wave shaping oscillator module with touch sensitive switch - 12HP.
Notes: The Cali oscillator is a new and improved version of the classic Buchla 258 wave shaping oscillator with an additional pulse width modulated output. The oscillator features the classic Sine to Square and Sine to Saw wave shaping with dedicated CV control. The Cali Oscillator differs from previous versions of the 258 in that it has a 3-way position switch rather than 2-way. This new middle position features a bonus waveform that will shape from a pulse into a kind of triangular trapezoid shape. The shaping control is more unpredictable in this middle position and the switch reacts to body contact when the wave shape is set low - it can be thought of as an extra bonus waveform, great for producing glitchy sounds! There are dedicated inputs for linear and exponential FM and the Cali also adds a Pulse output with it's own width control and PWM CV input. The behaviour of the pulse output can be affected by the position of the waveform switch and wave shape control. The module features Coarse and Fine frequency controls and an LFO mode, LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator - the button will light up when the waveform moves through its positive cycle. Because the wave shape modulation is independent of pitch this oscillator is very useful for creating complex timbres whilst retaining musical pitch.

Features

Sine to saw/square waveform output with cv over wave shaping

Pulse output with voltage controlled PWM

Linear FM with attenuator

Logarithmic FM with attenuator

Bonus 'trapezoid' output

Coarse & fine controls with LFO mode

Includes power supply isolation on frequency controls


Width: 12 HP
Depth: 22mm

Power
+12V = 37mA
-12V = 34mA
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 1 in stock $243.91
Dannysound EN129 Thru-Zero Oscillator Module
Dannysound EN129 Thru-Zero Oscillator Module (LFO/oscillator synth module)
Cat: 967572 Rel: 15 Sep 23
 
Through zero oscillator module - 12HP.
Notes: Gorgeous vintage-style through-zero FM here, featuring five simultaneous waveform outputs, pulse width modulation, soft sync and a dedicated LFO mode.

Supplier's notes:
The EN129 Thru Zero Oscillator is an all analogue triangle-core VCO specialising in frequency modulation. Analogue through-zero FM modulation produces a wide array of timbres particularly useful for bell like or percussive sounds. Through zero linear frequency modulation can be precisely dialled in thanks to a dedicated CV input attenuator and through zero offset control. Logarithmic FM is also available via it's own dedicated input with attenuator and both FM inputs have an LED to indicate incoming voltages. Simultaneous analogue wave outputs include: Sine, Triangle, Sawtooth, Square and Pulse wave with Pulse Width Modulation. The PWM control goes to zero at either end of it's range, which is very useful for creating rhythmic sounds with voltage control. Furthermore the PWM control doubles up as wave shape modulation for the Sawtooth wave - gradually altering the waveform until it shifts half a cycle. The EN129 features Coarse and Fine frequency controls as well as an LFO mode. LFO range is accessed via an LED pushbutton that also acts as the LFO speed indicator - the button will light up when the waveform moves through its positive cycle. A new addition of a Soft Sync Input allows the phase of the oscillator to be controlled by an external oscillator for an even greater range of timbres.

The EN129 is based on the pioneering work by Douglas Kraul and Bernie Hutchins. You can read the original Electronotes article from 1981 that the design is based upon here.

Features:

Soft Sync Input
Thru Zero Linear FM
Logarithmic FM
Zero to Zero PWM
Sawtooth Wave Shape Modulation
Simultaneous Outputs for: Sine, Triangle, Saw, Pulse & Square
Coarse & Fine Controls with LFO Mode
Includes Power Supply Isolation on Frequency Controls
Power consumption: 51mA at +12V and 47mA at -12V

Depth: 22mm

HP : 12
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MRP:$314.77 SAVE 10%
 1 in stock $284.85
Dannysound Looping VC-ADSR 4-Stage Envelope Generator Module
Dannysound Looping VC-ADSR 4-Stage Envelope Generator Module (envelope generator/function generator/LFO synth module)
Cat: 967622 Rel: 15 Sep 23
 
ADSR envelope module with full CV control and looping LFO mode - 6HP.
Notes: The Looping VC-ADSR is a 4-stage, loop-able, envelope generator based on the ENVGEN 8C IC from Electric Druid. The individual sections of the Envelope (Attack, Decay, Sustain, Release, Level and Time) can all be individually controlled via CV.

The module has 5 MODES of operation that can be selected via the pushbutton LED switch with the status indicated by the five LEDs above:

Normal Envelope - Gate signal at the GATE/TRIG input, fires the ADSR.
Trigger Mode - Trigger signal at the GATE/TRIG input fires the AD portion of the envelope. The sustain control determines the final value the envelope rests at after the decay portion has ended.
Gated Looping Envelope - ADSR loops whilst gate signal is high.
Looping Envelope - ADSR loops regardless of gate signal.
LIN response (Hold switch to select between LIN/EXP Mode) - Sets the envelope response to be Linear. The response is Exponential when the status LED is off.
When the envelope is looping, all 5 controls affect the output. Attack and Decay operate, as one would expect. The Sustain control sets the minimum voltage the decay part of the envelope will decay to. The Release sets a release time from the end of the Sustain period to the beginning of the next cycle. When the Sustain is set to 0 you can use the Release control to add a delay between the Attack and Decay cycles.

In Normal Envelope mode the Sustain CV input can be used with an LFO source to add amplitude modulation that gradually increases as the Envelope transitions from the Attack/Decay part of the envelope into the Sustain part. The Level CV is also a useful point for amplitude modulation or can be used for Velocity Sensitivity via CV.

The Time CV is set so that increasing voltage shortens the overall envelope time to better mimic the sounds of percussive instruments.

Features:

5 Modes of Operation: Gate Input ADSR, Trigger Input ADS, Gated Loop, Constant Loop and EXP/LIN Envelope Responses
CV over: Attack, Decay, Sustain, Release, Level and Time
Works with Gate or Trigger Signals from +5V to +12V
CV Input Range 0V to +10V
Output CV Range 0V to +10V


Power consumption: 28mA at +12V and 18mA at -12V
Depth: 25mm
HP : 6
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 2 in stock $270.55
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Dannysound MML Filter Multi-Mode Ladder Filter Module
Cat: 967619 Rel: 12 Dec 23
 
Multimode transistor ladder filter module with red mode feedback distortion - 6HP.
Notes: The updated "Skiff friendly" design of the mml filter now features bipolar "Attenu-verters" for the cv controls as well as an all new red mode!

This new mode activates a feedback distortion circuit capable of actually changing the pitch of the notes coming in to the filter in a musical way that adds instant variety to acid basslines, creates weird and strange alterations to drones or adds some nice overdriven distortion to whatever goes into it!

The multi-mode ladder (mml) filter is based on the classic transistor ladder low pass filter by dr. Robert a. Moog. This filter updates the classic 4-pole ladder design to provide band pass and high pass filter responses as well as the traditional low pass filter. There are 2 bipolar controls with attenu-verters for the cut-off frequency plus a cv input for the resonance.

The core of the circuit features a fully discrete transistor design with an op-amp buffered output, this allows soft saturation of the input signal to get the classic overdriven tones of the ladder filter. A bass compensation circuit has been included to retain the bass response in low pass mode when the resonance is increased. The bass compensation also helps to improve the response of the high pass filter.

The red mode is activated/de-activated by holding the mode button for 0.3s. In this mode the filter cut-off, input volume and resonance all interact and the effect is to produce alterations to the incoming frequencies. The pitches of the audio coming into the filter also affect the alterations as well selecting between low pass, band pass and high pass filter modes whilst in red mode.

Features

Low pass, band pass and high pass modes.
Red mode feedback distortion.
CV controlled resonance.
Added low frequency compensation.
Soft saturation of input.
2 x bipolar attenuverter CV inputs.

Width: 6 HP
Depth: 25mm
Power: +12v = 50ma / -12v = 39ma
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Dannysound Timbre Buchla 259 Inspired Wavefolder Module
Cat: 967621 Rel: 15 Sep 23
 
Buchla 259 inspired wavefolder module - 6HP.
Notes: The Timbre is a 6HP Eurorack module based on the wave folder section of the Buchla 259 oscillator as implemented in the Music Easel.

The wave folder adds extra harmonics to input signals that have low harmonic content to create rich and interesting timbres. Typical input sources to use would be Sine and Triangle waves but you are welcome to try other sources as well! The Dannysound Timbre adds an extra input to the Buchla design to allow 2 oscillators to drive the wave-folder simultaneously - this dramatically increases the range of possible tones that can be generated and allows the folder to go wild!

Features:

Osc1 / Osc2 Mix - Adjusts the mix between the Oscillator 1 and 2 inputs, also acts as an attenuator if only one input is used.
Timbre Control - Adjusts the overall amount of wave fold
Timbre CV - Bipolar (attenuator) controls the Timbre CV input
Symmetry - Adds an offset to the input so that the top half of the wave begins to fold earlier
Blend - Mixes between the clean and effected sound

Power consumption: 46mA at +12V and 48mA at -12V

Depth: 25mm

HP : 6
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Dannysound VU Meters Analogue VU Meters Expander Module For Dynamics
Cat: 967625 Rel: 15 Sep 23
 
Analogue VU meters expander module for the Dynamics module - 8HP.
Notes: The Dannysound VU Meters is designed to be used with 2 x Dynamics modules. The modules connect internally via 2x3 pin ribbon cables. The meters provide a visual representation of various signals within the Dynamics modules making settings easier.

Features:

External input sockets for monitoring external sources.

Switch to select high or low meter sensitivity or off if the clicking needles get annoying!

Monitoring of the compression/expansion amount.

Monitoring of the unprocessed input level.

Monitoring of the compressor/expander output level.

Power consumption: 0.03mA at +12V and 83mA at -12V at and 3mA at +5V
Depth: 51mm
HP : 8
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Dreadbox Telepathy Full Synth Voice Module
Cat: 947127 Rel: 12 Jul 23
 
Synth voice module - 10HP.
Notes: Simple to look at but deceptively powerful, Dreadbox's Telepathy is a full analogue synth in a small module, featuring VCO, low-pass and high-pass filters, LFO, envelopes and VCA.

Supplier's Notes:
Telepathy is a full voice analogue synthesizer module with deep modulation options due to its multi-destination LFO and Envelope. From Bass to Lead sounds, to drums and drones, Telepathy has broad and versatile sound design capabilities. It has a Full Analogue path (Typhon VCO, 4-pole low pass / 2-pole high pass filters, analogue VCA) that is digitally controlled for more precision over its parameters, resulting in a warm, present and distinct Dreadbox sound.

With lots of useful and musical features integrated into a compact size (10hp), and its skiff friendly design, Telepathy is a great addition to small or large Eurorack systems.

Features:

1x Analogue Oscillator with saw, square, -1 oct square sub and noise, plus PW control for square, level for noise and waveshape
Automatic tuning for the oscillator and fine tune
Analogue 24db Resonant Low pass filter with Oscillator FM and Noise FM and 6db High pass filter
Analogue VCA
1x LFO with Free/Key/Track/BPM/BPM Key modes, Fade in, Triangle/Saw/Ramp/Square/Random waveforms, that is mapped to various parameters
2x Envelopes, one dedicated to the VCA with Velocity control and one loopable for Low pass Filter, Pitch and PW
CV in patch that can be mapped to all the basic parameters in parallel with dedicated amount for each parameter
MIDI in/out+through
CC in/out, Program Change in/out
Multitimbral Chaining functionality via MIDI up to 8 modules 16 presets
10HP
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 4 in stock $219.64
Dreadbox Telepathy Full Synth Voice Module (B-STOCK)
Cat: 969478 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***

Simple to look at but deceptively powerful, Dreadbox's Telepathy is a full analogue synth in a small module, featuring VCO, low-pass and high-pass filters, LFO, envelopes and VCA.

Supplier's Notes:
Telepathy is a full voice analogue synthesizer module with deep modulation options due to its multi-destination LFO and Envelope. From Bass to Lead sounds, to drums and drones, Telepathy has broad and versatile sound design capabilities. It has a Full Analogue path (Typhon VCO, 4-pole low pass / 2-pole high pass filters, analogue VCA) that is digitally controlled for more precision over its parameters, resulting in a warm, present and distinct Dreadbox sound.

With lots of useful and musical features integrated into a compact size (10hp), and its skiff friendly design, Telepathy is a great addition to small or large Eurorack systems.

Features:

1x Analogue Oscillator with saw, square, -1 oct square sub and noise, plus PW control for square, level for noise and waveshape
Automatic tuning for the oscillator and fine tune
Analogue 24db Resonant Low pass filter with Oscillator FM and Noise FM and 6db High pass filter
Analogue VCA
1x LFO with Free/Key/Track/BPM/BPM Key modes, Fade in, Triangle/Saw/Ramp/Square/Random waveforms, that is mapped to various parameters
2x Envelopes, one dedicated to the VCA with Velocity control and one loopable for Low pass Filter, Pitch and PW
CV in patch that can be mapped to all the basic parameters in parallel with dedicated amount for each parameter
MIDI in/out+through
CC in/out, Program Change in/out
Multitimbral Chaining functionality via MIDI up to 8 modules 16 presets
10HP
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MRP:$293.72 SAVE 17%
 1 in stock $243.49
dsp.coffee DPT Multi-Function Electron Temple Module
dsp.coffee DPT Multi-Function Electron Temple Module (clock modulator/CV modulation/effect/envelope generator/function generator/MIDI/utility synth module)
Cat: 938421 Rel: 12 Jun 23
 
Multifunction electron temple module in 20HP.
Notes: dsp.cpoffee's custom everything-including-kitchen-sink dsp development platform.

At the core of this is an Electrosmith Daisy Patch Submodule, combined with a 12-bit 4 channel SPI DAC [DAC7554], and supporting hardware for more IO

Features
- 8x pots normalled to +5V
- 8x CV in breaks normalled connection and pot acts as an attenuator
- 2x gate in
- 2x gate out
- High-fidelity stereo in/out (Daisy Patch Submodule, using an WM8731 codec)
- 2x 12-bit CV out from Daisy Patch Submodule, scaled to -5v to 10v
- 4x 12-bit CV (or lofi audio w/ some hacking) from external DAC7554, scaled to -7v to 7v
- TRS MIDI in/out (in is auto-sensing for type a/b)
- SD card slot
- Expansion header for +5v, +3v3, SPI, UART, I2C, and USB connections
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 1 in stock $282.13
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EarthQuaker Devices The Wave Transformer Transfiguration Oscillator Module
Cat: 991963 Rel: 19 Jan 24
 
A complex single oscillator with 7 audio outputs
Notes: The Wave Transformer is a complex single oscillator with 7 audio outputs. Its method of wave shaping differs from other complex oscillators in that it is not based upon classic wave folding such as is common in West Coast synthesis, or filtration such as is common in East Coast synthesis.

This analogue, vintage-voiced, voltage-controlled oscillator features over 8 octaves of accurate pitch tracking. Its 7 simultaneous wave outputs include a unique Complex output. This strange and novel output varies between a simple waveform (triangle, unless you patch a signal into the Shape Insert jack) and a complex transformation of the harmonic structure of the original waveform. It contains a unique mixture of the fundamental frequency, odd order harmonics, even order harmonics and subharmonics. The Sub Octave panel control will determine whether the sub harmonics are derived from one octave down, two octaves down, or are muted altogether. It will vary from a simple waveform to a silhouette of your cat watching you as you react to a "present" that it left for you on the counter. No, seriously.

The module's Transform control morphs from a basic waveform through many strange iterations into a complex, gnarled mass of audio mutations at the Complex output using an asymmetrical multi differential audio transmutation circuit. You can yield countless variations on these permutations by combining this novel circuit with Hard Sync, Soft Sync, Linear FM and Exponential FM.

Additionally, you can mute the source waveform to use the circuit as a harmonic gate/VCA, rendering the Wave Transformer a voice unto itself.

If that is not enough, there is a Shape Insert that allows you to transform external oscillations and modular-level audio sources.
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 2 in stock $215.81
Erica Synths Black Stereo Reverb Hi-Fi Stereo FX Module
Cat: 946497 Rel: 17 Oct 23
 
Hi-Fi stereo effects module - 12HP
Notes: The Erica Synths Black Reverb is a versatile hi-fi stereo FX module with lots of unique features based on Erica Synths' custom DSP engine. The reverb sources are selectable Tape, BBD and "dirty BBD" digital; emulations with three modes, each - Room, Hall and Cathedral. Delicate room size control, feedback, feedback tone and stereo spin controls allow for designing extremely delicate reverberation effects. CV control over various parameters and the ability to save up to 10 presets will make this module an integral part of any performance rack.

Features:

Reverb based on Tape, BBD and digital delay lines
Three room sizes
Manual and triggered FREEZE with 1V/oct tracking
10 preset patches
CV control over size, feedback, tone, dry/wet mix and preset selection
Adjustable stereo spin

Specs:

Max audio input level before clipping 16Vptp
CV input range (full span) -5V - +5V
Sampling frequency 48kHz, 24bit
Audio codecs -108 dynamic range, -98dB THD+N
Power consumption 120mA@+12V, 39mA@-12V
Module width 12HP
Module depth 35mm
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Erica Synths Stereo FX Hi-Fi Stereo Effects Module
Erica Synths Stereo FX Hi-Fi Stereo Effects Module (effect/delay/reverb/dual/stereo module)
Cat: 989861 Rel: 01 Feb 24
 
Hi-fi stereo effects module - 10HP
Notes: The STEREO FX module brings hi-fi stereo effects into the Erica Synths Drum Series. Based on Erica Synths' new DSP engine, the module provides a wide range of custom delay and reverb effects. CV control over various parameters and the ability to save up to 10 presets will make this module an integral part of any performance rack.

Features

Hi-Fi stereo FX module
3 delay and 3 reverb effects
Tap and clock synchronization of delay time
Delay time divisions and multiplications in sync mode
10 preset patches
CV control over delay time, feedback, and preset selection
The FX is developed in collaboration with the Dutch company 112dB which offers some of the best-sounding VST instruments.

Technical specifications:

Audio input level: -5V - +5V
Delay time: 3ms - 3s
CV level (full span): -5 - +5V
Power consumption: +123mA, -40mA
Module width: 10HP
Module depth: 35mm
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Feedback MIX KM 6-Channel Mixer Module
Feedback MIX KM 6-Channel Mixer Module (mixer/distortion/dynamics/external synth module)
Cat: 923571 Rel: 04 Apr 23
 
6-channel mixer module - 35HP.
Notes: MIX KM (like Feedback's PRE KM channel strip) is based on a famous late seventies small mixer used by many electronic music bands.

Tech specs:

- 35HP front panel
- 35mm depth behind front panel including the power connector
- 6 mono input jacks ( 1 per channel)
- Pot controls for channels : Gain, Hi, Low, Aux1 send, Aux2 send, Pan, Volume
- 6 mute switches (1 per channel)
- Pot controls for master : Master Level, Headphone Level, Aux1 Return, Aux2 Return
- 2 x mono aux send jacks
- 4 mono input jacks for two stereo Aux returns
- 2 jacks for master left and right out
- one 3.5mm stereo jack for headphone out
- boxed 10 pin euro power (+12V / -12V)
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 1 in stock $262.13
Feedback MIX mix Stereo Bus Mixer Module
Feedback MIX mix Stereo Bus Mixer Module (dual/stereo/external/mixer synth module)
Cat: 923574 Rel: 04 Apr 23
 
Stereo bus mixer module - 16HP.
Notes: Premium quality stereo bus mixer module with balanced and unbalanced output drivers, high end headphone amp and level meters.

Tech specs:

- Panel width 16HP
- 45mm depth behind the panel, including the power connector
- 6 control pots : In 1,2,3,4, Master, Phones Level
- 8 input jacks
- 1 stereo output jack for phones
- 2 unbalanced 6.35mm jack ouputs
- 2 balanced XLR outputs
- standard 10 pin euro power +12V/-12V
- power consumption +12V 150mA , -12V 50mA
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 1 in stock $263.18
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Frequency Central Akropoli Advanced Generative Sequencer Module
Frequency Central Akropoli Advanced Generative Sequencer Module (clock generator/comparator/logic/sequencer module)
Cat: 997141 Rel: 19 Mar 24
 
Generative CV sequencer & 4-channel clock divider module - 16HP
Notes: Advanced generative sequencer featuring mutes per channel and transposition facilities.

Akropoli is an extension and enhancement of our successful Little Melody and High Towers modules, offering the features of both of these modules as well as some of it's own unique features such as mute buttons per channel, manual transpose knob and 1V/oct transpose CV input. Akropoli operates using Frequency Central's proprietary TOOL V2 code, and can count in integers as well as multiples for even more subtle and evolving variations.

Akropoli is a generative sequencer based around clock divisions and a chromatic quantiser, used to create in-the-moment licks and riffs. It is more that the sum of it's parts.

Akropoli's internal operations can be considered as 4 clock dividers patched into a CV mixer via attenuators. The attenuators select notes over a 5 octave range, the clock dividers determine how often those notes are added to the mix. The final output of Akropoli is quantized chromatically for fast set up and continuously pleasing results. Akropoli has an onboard transposition knob, as well as a 1V/oct transposition CV input.

The 4 clock dividers are labelled A, B, C, and D. They all receive clocks from the same source, the divisions may be selected using the presets and the individual division selectors. The clock dividers can be set to count up, down, or to one of a variety of modes that move between counting up and down. For further information on Presets and Modes see the Little Melody User Guide.

Additionally, each clock divider has it's own binary output (either high or low), these 4 outputs can be used to clock/gate/trigger other stuff on other modules to great effect.

Product Specifications

12V draw
50mA

-12V draw
36mA

5V draw
0mA

Depth
35mm
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 1 in stock $262.12
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Frequency Central Strips 4-Channel VCA Mixer Module
Frequency Central Strips 4-Channel VCA Mixer Module (mixer/equalizer/quad/VCA module)
Cat: 972021 Rel: 09 Oct 23
 
Expandable 4-channel VCA based stereo mixer module - 20HP
Notes: Expandable 4 channel VCA based stereo mixer with tone shaping and FX bus.

Chipset:

For this item, Frequency Central offer a CHIPSET which contains the following:

3 x LM13700

For all other components required, please see the build document.

Features:

4 x input channels, each featuring LEVEL, HIGH, LOW, FX send, PAN, MUTE and CV control of level.
FX send and stereo return + FX phase jumper
Left and Right Eurorack level inputs (2 x 3.5mm sockets)
Left and Right line level outputs (2 x 6.35mm sockets)
Scribble strips!

Strips is also expandable! You can add a second strips, connected to the first via a 16 pin to 16 pin cable. The cable powers the second Strips and gives you 8 channels to play with. The second Strips accesses the first Strips FX bus. When using in expanded configuration, the FX send/return and main outputs for the second Strips are not available. Here's how!

FX phase jumper - because not all FX that you might use in the FX loop are in phase with respect to their input/output. The phase jumper allows you to compensate for this and avoid weird phase cancellations.

Product Specifications

12V draw: - 43mA
5V draw: - 0mA
-12V draw: 43mA
Depth: 39mm
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Intellijel Audio I/O Dual Balanced Line Level Audio Interface Module
Cat: 938818 Rel: 12 May 23
 
A dual/stereo balanced line level audio interface module in 10HP.
Notes: Dual Balanced ins and outs for the studio or the road. Interface your rack with the balanced line level world; send and return to pedals or desktop FX units; patch in and out of your DAW, external synths, drum machines and other line-level instruments.

Get Connected

Audio I/O (2023 edition) allows you to effectively interface your Eurorack modular system to the balanced line-level world (+4 dBu). You can send and return to rack mount/desktop fx units, patch to external line-level instruments like synths and drum machines, interface to a DAW and much more.

The 2023 edition moves the TRS jacks to the top of the panel

The rear-mounted 3-pin CHAIN IN connector allows you to sum (in parallel) other audio sources to go from Eurorack level to the BAL LINE OUTPUTS. This could be from modules like the Mixup 3U, Xfade 1U, Stereo Mix 1U, and XY I/O 1U. You could also use this to connect with the 3-pin headers on the Palette and 7U cases audio i/o boards.

The rear-mounted 3-pin CHAIN OUT connector allows you to directly connect the level-shifted BAL LINE IN to the inputs of other compatible devices such as the Mixup 3U, Outs 3U, Stereo Mix 1U, XY IO 1U, and Headphones v2 1U. You could also connect the to the TRS jacks of the Palette and 7U cases audio i/o boards.

Features:

2 x Balanced TRS 1/4" to Eurorack modular level input paths
2 x Eurorack modular level signals to Balanced TRS 1/4" output paths
4 x six stage analog led VU meter to monitor all inputs and outputs simultaneously
Input path has up to 20 dB of gain, which allows you to patch in low-level consumer level signals and boost them.
Output path steps a nominal Eurorack level (10 Vpp) down to +4 dBu with up to +6 dB gain
3pin CHAIN IN connector
3-pin CHAIN OUT connector

Dimensions
10 HP
39 mm deep

Current Draw
75 mA +12V
70 mA -12V
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MRP:$268.45 SAVE 10%
 1 in stock $242.12
Intellijel Flurry Clock/Random Pulse Source Module
Intellijel Flurry Clock/Random Pulse Source Module (clock generator/envelope follower/noise/random/sample & hold/slew limiter/utility synth module)
Cat: 936173 Rel: 28 Mar 23
 
Clock, random pulse source module in 8HP.
Notes: A multi-purpose module designed to combine noise and modulation sources, slew, sample-and-hold, envelope following and more. Extremely versatile way to add randomness and controlled movement to patches.

Supplier's Notes:
Flurry collects and connects a number of practical modular synthesis tools, focused on clocks, noises, and randomness to create a module that is rife with opportunities for exploration and experimentation. Equally capable as a synthesis source, modulator, clock, or signal modifier; It is bound to find a way to bring new life and dimensions to your synth patches.

Core Functions:

A clock and random pulse source with adjustable and modulatable rate
Accurate pink and white noise sources
Analogue sample & hold and track & hold circuits with very low droop
Analogue slew with adjustable slew time and edge selection (rising edge, falling edge, or both)
Envelope follower
16 noise synthesis algorithms, each with 2 parameters.

One of Flurry's more interesting aspects is its collection of digital noises, which provide a wealth of interesting noises, suitable for either audio or modulation purposes. Each noise type has its own pair of unique parameters to further dial in the desired characteristics, with the primary parameter under CV control.

Most people consider noise to be "undesirable," and product developers expend great effort to design circuits that minimize noise. So why make a module designed specifically to create noise?

Indeed, unwanted noise is undesirable. But not all noise is unwanted. Synthesizing the sound of wind or waves are a couple of the more obvious uses for a noise generator, but the possibilities go far beyond. The crack of a snare hit; the breathiness of a flute sound; an added sizzle to a resonant pad - all are within the sonic domain of noise.

But noise has many other benefits beyond simply being heard. Noise happens to make a wonderful modulator. When noise is used to modulate a filter's cutoff frequency, or an oscillator's pitch or pulse width, then all sorts of raspy, buzzy, gritty timbres are obtained.

Noise is also a key ingredient in sample & hold circuits - a technique most commonly used to generate stepped, random voltages. The circuit works by sampling an input signal's voltage each time you send it a clock pulse, and holding that voltage until the next clock pulse. So, naturally, Flurry also contains the requisite clocking tools! Two of the most common destinations for the S&H output are a filter's cutoff frequency (creating stepped, clocked timbral changes), and oscillator pitch (which produces random notes at clocked intervals).
Of course, you might not always want your voltages to change so abruptly at each clock pulse. Maybe you'd prefer they wobble about gradually and with more grace? To do that, you need a slew circuit, and once again Flurry has you covered - allowing you to select not just the slew time, but also whether the slew is applied to rising voltages, falling voltages, or both. A flick of the switch, and that Slew circuit becomes an envelope follower, enabling Flurry to generate envelopes from input signals (syncing to drum hits are a common use).

With all these features, plus the ability to create random pulses, clock to external pulses, and perform more esoteric track & hold duties, Flurry is a noise lover's toolbox.

Width: 8HP
Depth: 34mm
Power: 116mA @ +12V 30mA @ -12V
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MRP:$257.92 SAVE 19%
 2 in stock $209.49
Intellijel Tete Tetrapad Expander Module (B-STOCK)
Intellijel Tete Tetrapad Expander Module (B-STOCK) (controller/sequencer/expander synth module)
Cat: 1002284 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.***


Expander module for the Tetrapad, Intellijel's multi-dimensional performance touch controller. Adds huge functionality, allowing you to sequence parameters and create complex modulation.

Supllier notes:
Tete is the long awaited and highly anticipated expander for the Tetrapad.

Some of the key features:

Three primary modes: VOLTAGES, NOTES and COMBO.

VOLTAGES mode:

Up to 16 voltage storage locations (grid) with 8 voltages stored at each location.

You have the choice to record and playback your recall of these locations in a looper style (just play freely and spend arbitrary amount of time at any location) or as a clocked sequence (SH-101 style). Additionally you can traverse the matrix using the X and Y CV inputs to get Cartesian style sequencing.

There is also variable slew that allows you to morph/glide between the values.

NOTES mode:

You can create sequences or loops in chord, scales or keyboard mode. The isomorphic keyboard grid can vary from 4 notes to 12 notes max. There are real-time performance looping, transposition and inversion capabilities via the CV inputs and dedicated loop button. In sequencer mode each step can be a tie, rest, or gate with size 25/50/75%. Basically we have created a way to very quickly and intuitively make chord sequences that are very musical and easy to manipulate. It is difficult to summarize in words but we will be sure to create some videos to demonstrate how easy and fun this is to play with. It definitely represents something unique in the landscape of Eurorack sequencers.

COMBO mode:

In this mode you can loop record your performance on any combination of the following functions:

fader, bipolar fader, drum hit, switch or LFO. Kind of like Elektron style parameter locking but all of the motions is recorded continuously instead of just in slices. Instantly turn a simple patch into a highly animated and complex beast.

With all of the above mentioned loop recording modes you can very easily overdub since the Tetrapad detects pressure/pressing. In combo mode you can erase individual channels.

All modes allow for internal or external clocking and configurable syncing.

All of the modes have special XYZ CV modulation assignments and make use of the dedicated CV outputs.

For example, in Looper mode one of the CV outputs generates a continuous ramp that represents the position in the loop. This can be used with devices like the Planar 2 in Interpolation mode to sync the recorded patterns together no matter what tempo.
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 1 in stock $264.35
Jolin Agogo 8-Vactrol Low Pass Gates Module
Jolin Agogo 8-Vactrol Low Pass Gates Module (low pass gate/mixer/utility/dual/stereo synth module)
Cat: 918361 Rel: 06 Jul 23
 
A pack of 8 vactrol low pass gates in an open design configuration.
Notes: AGOGO is a pack of 8 vactrol low pass gates in an open design configuration.

Why:

To bongo.
To enhance and enrich a weak audio source.
To create sub-mixes of up to 8 inputs.
To send a single source to many outputs and modulate each one of them individually.

With:

Multiple fixed waveforms - use the individual LPGs as a CV scanner.
Stereo sources - control them with a single CV input.
EOC pulses and triggers - this is where it gets percussive.
Slow modulations - take advantage of those vactrols and their natural decay.

How:

"I", the inputs row is normalized from top to bottom.

An input inserted in the first socket will be copied unaltered to the next one.

If a jack is plugged in it will break the normalization.

"V" is for control voltages and they cascade the same way as the inputs following to natural decay of the vactrol response. All the LPGs can be opened simultaneously with a single CV source. Combining the features of both "I" and "V" rows you can control a signal with 8 different CVs or 8 different sources with the same CV.

"O" stands for outputs. They act as an active mixer letting you combine up to 8 signals. As in the previous two rows, the connection can be interrupted in any given point to create sub mixes or individual outputs.

Since Jolin are actively summing copies of the original input, each LPG stage will add saturation to the final out. Thanks to the open design path and normalizations this is just an additional feature: all the LPGs can still be used individually or in multiple combinations for multichannel effects or other creative application. More AGOGOs can be chained together thanks to headers on the back to multiplicate the number of inputs/outputs.

Dimensions:

6 HP
28 mm deep

Current Draw:

150 mA +12V
90 mA -12V
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MRP:$310.56 SAVE 19%
 1 in stock $252.15
Joranalogue Delay 1 Split-Phase Bucket Brigade Delay Line Module
Cat: 881426 Rel: 10 Aug 23
 
Delay 1 is a fully analogue BBD-based delay module with a multitude of features geared towards modern musical use.
Notes: Bucket brigade delay gets pushed into exciting creative territory with this beauty from Joranalogue. Precise analogue delay with loads of character, capable of simple chorus and flanger or more exotic Karplus-Strong synthesis and comb filtering.

Supplier's Notes:
While digital audio processors are often plagued by latency issues, analogue circuits are known for their instant response. But what if you want to delay a signal on purpose, without the use of tape or digital memory? Enter the bucket brigade delay (BBD) line: a series of capacitor 'buckets', which pass the incoming signal along at a high rate in order to delay it.

Delay 1 is a fully analogue BBD-based delay module with a multitude of features geared towards modern musical use. An integrated temperature-compensated, high-frequency voltage controlled oscillator (VCO) provides the 'clock' signal necessary to drive the delay line within 1 to 50 ms.

By increasing the drive frequency to over 20 kHz, the classic 'BBD clock whine' problem is solved, while still providing a wide range in delay time. Classic chorus, flanger and echo effects are easily achieved using the dry/wet blend, feedback and damping parameters.

To greatly reduce distortion and noise, Delay 1 includes a newly developed control circuit. The improved fidelity is maintained at a multitude of signal levels by an integrated high-performance compander, while maintaining signal dynamics.

The module's 'split phase' topology provides two different dry/wet mixes, which may be used to convert mono signals to stereo, for complementary comb filtering and more.

Delay 1 also allows you to experiment with Karplus-Strong synthesis, an exciting technique to create string and percussion type sounds. This is made easy by an integrated noise transient generator, driven by the 'pluck' input, and by the clock VCO's 1 volt per octave response.

By re-engineering the classic analogue delay line, Delay 1 brings the unique magic of BBDs into the contemporary electronic musician's arsenal.

Analogue bucket brigade delay line.
Integrated temperature-stable high-frequency BBD clock VCO with fine and coarse tuning.
Split-phase topology with additive and subtractive dry/wet blend outputs.
Blend, feedback and damping (feedback filter) parameters. Positive or negative feedback with low or high pass filtering.
High-performance BBD drive circuitry and transparent compander chain ensure optimal signal fidelity.
Dedicated pluck trigger input for Karplus-Strong synthesis.
High-frequency BBD clock input and output to synchronise multiple delay lines.
Impedance-compensated outputs with dual-colour LEDs.
Trim potentiometer accessible from the front panel.
Premium mounting hardware: black screws, black nylon washers and matching hex key.
High-quality components and assembly; designed and made in Belgium.

12 HP | +12: 125 mA, -12: 95 mA
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MRP:$314.77 SAVE 18%
 7 in stock $256.87
Klavis Grainity Digitally-Controlled Full-Analogue Path Granular & Multi-Mode VCF Module (silver)
Cat: 934965 Rel: 19 Dec 23
 
Digitally-controlled full-analogue path granular & multi-mode VCF module in 10HP.
Notes: A unique analogue take on granular synthesis, inspired by Yannis Xenakis, the Grainity pairs a granular filter with a multimode filter to create new textures and harmonics.

Supplier's Notes:
The Grainity brings a unique and never-heard-before concept to the world of analogue VCF.

While being based on analogue filtering only, the Grainity expands and enriches the sound in creating subharmonics, harmonies, unison, flanging effects and formant filtering all at once.

The module presents two sections, the granular filter itself and a typical multimode filter, each with its own output.

A third output offers a mix of both filter paths. Numerous controls and CV allow a very wide palette of results.

What is the Grainity

Granular?

The word granular was chosen for this filter module in relation to the concept invented by the composer Yannis Xenakis, and which is described as assembling small chops of sounds - he called grains - according to a pattern.

This is exactly what the Grainity does, no more no less ... but, digital control allows doing it in ways that are decades away from what tape and scissors allowed at the time.

Technology wise ...

In the granular section, the incoming sound cycle is determined in order to step through various filtering and phase variations of itself according to predefined patterns called structures.

The controls allow alterations to the cycling phase, cycling frequency offset (tuning), structure selection and frequency division of the filters cycling. This comes in addition to the usual filter frequency and resonance controls.

What the Grainity is not

Technology wise ...

Despite relying on a microprocessor, the Grainity is not a digital audio processor. At any time, the sound remains in the analog domain and goes through analog circuits from in to out.
The digital processor does not convert or generate audio signals; it is there to control the analog circuitry and manage the interface and display.

Sound wise ...

Several digital modules offering granular processing rely on the layering of sound grains, which leads to blurry and cloudy textures.
Layering of the grains is a late addition to the concept of granular synthesis and is not a mandatory feature of the concept.
The Grainity does not use delay lines or sampling memory but is nevertheless true to the foundations of the granular synthesis concept.

The granular VCF in the Grainity is unconventional in that, most of times, it is not filtering the sound in the common expectation of removing something. Typically, the granular process adds more than it removes by expanding both the lower range, creating subharmonics, and the upper harmonic contents in multiples ways.

Dimensions
10 HP
21 mm deep

Current Draw
101 mA +12V
59 mA -12V
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 7 in stock $261.07
Klavis Twin Waves MK2 Voltage-Controlled Dual VCO/LFO/Random Module (black)
Klavis Twin Waves MK2 Voltage-Controlled Dual VCO/LFO/Random Module (black) (digital/LFO/oscillator/dual/stereo/noise/quantizer/ring modulator/random synth module)
Cat: 951618 Rel: 26 Feb 24
 
Voltage-controlled dual VCO, LFO and random module - 8HP.
Notes: Two oscillators independently set as VCO, LFO, or random generator

This new version replaces the original Twin Waves. All features of the former are retained. You can check all videos, reviews and comments of V1, being sure to benefit of all in the MKII version :-)

Features in VCO mode:

V/Oct tracking over 10 octaves
Tuning lock with octave selection
Through zero and linear FM
Sub-octave output
Hard & soft synchronization
VCA control and CV algorithms selection
Quantizer with various scales
20 algorithm-based synthesis types among:
Wave shaping
Phase modulation
Phase positioning of multiple waves
Up to 5 stacked oscillators in tunable unison
Self-sync with phantom oscillator
Additive synthesis (7 waves)
Variable bit reduction (bit-crushing)
Ring modulator with its own 2nd oscillator
Noise with LPF, BPF, or resonant filter

Features in LFO mode:

Simultaneous signal and trigger outputs
External wave synchronization
Clock controlled rate with voltage controlled multiplier and divider
CV and knob control of output level
Algorithm based wave engine with a selection of:
Wave shaping
Phase modulation
Random levels and vectors (also Brownian)
Randomly spaced triggers and waves
Display with contextual icons and instant reminder help text
LEDs indicating potentiometer vs. value matching, switch settings and output signals
Automatically saved settings for instant recall at power on
Firmware update by playing an audio file via the front panel
Compact and skiff-friendly module

Dimensions
8 HP
21 mm deep

Current Draw
52 mA +12V
17 mA -12V
0 mA 5V
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 3 in stock $228.44
Maneco Labs Drums4 Percussion Sound Generator Module
Cat: 971081 Rel: 08 Jan 24
 
4-voice, sample-based percussion sound generator module - 12HP.
Notes: Drums4 is a 4 voice, sample based percussion sound generator.

Each voice can select its sound from a 48 sample global bank, samples are curated from the manufacturer's collection of percussion sources used in their music.

Each sample can be tuned and has an individual output for independent processing , and there's also a simple mixer that controls levels to the main mixed output.

Operation is simple and intuitive, the selected sample is remembered after power down for each of the 4 voices.

Incoming triggers are displayed on each voice LED indicator.

Controls:
for each voice:
-PITCH potentiometer : for tuning sound over a wide range.
-SAMPLE SELECTOR encoder : allows choosing among 48 global samples , setting is
remembered after power down
-MIX potentiometer: adjust blending of each voice to the mix output

Connectors:
for each voice
TRIGGER jack : trigger or gate input , accepts a wide range of sources from 5v to 12v
OUT jack : individual sound output for voice
CV jack : allows external control of voice pitch, 0 to 5 volts range, over voltage protected.
Main Mix jack: summed output of mixed voices, controlled with mix pots.

Specifications:
width : 12HP
depth: 28 millimeters
Power consumption: 130 milliamps +12v , 10 milliamps -12v
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Mystic Circuits 3DVCA Quad Vector VCA Module
Cat: 944998 Rel: 14 Jul 23
 
Quad VCA & axis generator module - 4HP.
Notes: Designed to be a highly customizable connection matrix, 3DVCA packs a boat load of utility into a small 6HP package. Four VCAs share the three macro controls: X, Y, and Z. As a group, they shape incoming and outgoing signals and emulate the coordinates of a point in 3 dimensional space. This allow the VCAs to work together in a mono, stereo, or quad configuration and accomplish a variety of mixing, crossfading, and panning functions.

3DVCA is designed to be used in the following functions:

Quad monophonic crossfader
Dual stereo crossfader
Stereo balancer
Stereo VCA
Mono to stereo panner
Unity mixer with up to eight inputs
Quadraphonic panner

Each output has a dedicated SUM input which allows an external signal to be automatically mixed into the output signal. This allows 3DVCA to daisy chain both with other mixers and other 3DVCAs. For example, you can create a full mono, stereo, or quadraphonic mix by plugging the output of each 3DVCA into the sum inputs of the next 3DVCA in the chain. Using this method, a set of 3DVCAs can create a fully voltage controlled and decentralized mixer which ties together anything from a small skiff to a monster synth.

When 3DVCA works as a crossfader or panner, the X and Y parameters follow an equal-power curve that keep output signals at the same volume no matter how many inputs are mixed together. This is in contrast to the Z parameter which follows a linear curve to always behave predictably with external modulation sources. All inputs are fully DC coupled in order to work with modulation speed signals as well as static DC voltage sequences; this means that 3DVCA can handle any sort of signal that you throw at it. All op amps in the device employ rail-to-rail inputs and outputs to enable the largest headroom when mixing many different signals together.

Whether you need to maximize your mixing functionality in the smallest possible footprint or have the most control over every aspect of your system, 3DVCA provides a ton of functionality in any system. Enter a higher dimension of sound with the Mystic Circuits 3DVCA.

Dimensions
6 HP
30 mm deep

Current Draw
45 mA +12V
45 mA -12V
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Noise Engineering Univer Inter Chainable 8-Output MIDI To CV Converter & USB MIDI Interface Module (black)
Cat: 955808 Rel: 10 Jul 23
 
Chainable 8-output MIDI to CV converter and USB MIDI interface module - 6HP.
Notes: Describing Univer Inter as merely a MIDI-to-CV module falls short of its immense potential. It serves as an all-encompassing MIDI-to-any-format converter, elegantly packed into a compact 6 HP unit. Connect to your gear via USB B or TRS MIDI, or use the included adapter to plug straight into those 5-pin DIN connecters we all know and love. Whether you're looking to map clock, note, CC, aftertouch or something else that MIDI can encode, UI can do it: we built in over 20 settings for each of the 8 outputs.

Want to control a pair of monophonic voices, complete with velocity and aftertouch? No problem. How about a polyphonic setup, with gate and pitch per voice? Easy. Need to synchronize an in-the-rack sequencer with your DAW or a MIDI clock? UI has you covered.

Eight outputs isn't enough, you say? Chain two UI together via their front-panel MIDI ports and a TRS cable for 16 - you read that right, 16 - configurable CV outputs from a single MIDI connection. The possibilities are endless.

Noise Engineering also made configuration simple via the front-panel USB connection and the easy-to-use Univer Inter section on the Noise Engineering Customer Portal. Go wild and set each channel to any output option you need, or just use one of our simple presets. Configuration files can also be saved as sysex files for easy backup and sharing.

Features

Size and Power
6HP Eurorack
+12v: 40mA
-12v: 10mA

Univer - from Latin: "Universe"

Inter - from Latin: "between"

"Between universes"

What's in the box:
Module
Power cable
5-pin MIDI to TRS cable
USB A to B cable

To reduce excess materials, screws will no longer be included with Noise Engineering modules beginning in 2023.
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Patching Panda Particles Trigger Modulation & Pattern Variation Designer Module (black)
Cat: 931101 Rel: 06 Apr 23
 
Trigger modulation and pattern variation designer module in 12HP.
Notes: Particles, is 4 channels of trigger modulation, capable of mathematically variating and manipulating your patterns with a combination of features to play with.
It can evolve your rhythmic idea into more complex and groovy patterns which are difficult to achieve without music knowledge.

You can create your algorithms from the rhythmic tools provided to be able to change the patterns instantaneously in many ways without worrying to sacrifice
the original idea.

You can shift and scramble the outputs, you can repeat the triggers with different time signatures to transform the grooves, mute in different ways, disappear by probability trigger inputs, disappear by probability repetitions, use sequential switching to shift randomly with a different kind of resetting, bypass each channel and set it individually the amount of each feature per channel when feeding external CV.
The idea of Particles, was designed to provide features for building complex breaks, grooves, organic-evolving percussion sounds, and different options for
arpeggios, and even bass line grooves, the limits are decided by you.

Particles Features

4 trigger inputs/outs.

Repetitions with different distribution times to choose from.

Manually shift the output channels, scramble them randomly or clocked them in forward mode.

Reset the outputs to 4 different shift modes.

Disappear repetitions by probability per channel.

Disappear the input trigger by probability per channel.

Mute each channel with clock divisions from the input clock.

Mute manually the outputs

Disable triplets from repetitions to have musical patterns

Random voltages output clocked from clock input.

The slider keeps the adjusted value from each feature.
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Patching Panda Particles Trigger Modulation & Pattern Variation Designer Module (silver)
Cat: 931113 Rel: 06 Apr 23
 
Trigger modulation and pattern variation designer module in 12HP.
Notes: Particles, is 4 channels of trigger modulation, capable of mathematically variating and manipulating your patterns with a combination of features to play with.
It can evolve your rhythmic idea into more complex and groovy patterns which are difficult to achieve without music knowledge.

You can create your algorithms from the rhythmic tools provided to be able to change the patterns instantaneously in many ways without worrying to sacrifice
the original idea.

You can shift and scramble the outputs, you can repeat the triggers with different time signatures to transform the grooves, mute in different ways, disappear by probability trigger inputs, disappear by probability repetitions, use sequential switching to shift randomly with a different kind of resetting, bypass each channel and set it individually the amount of each feature per channel when feeding external CV.
The idea of Particles, was designed to provide features for building complex breaks, grooves, organic-evolving percussion sounds, and different options for
arpeggios, and even bass line grooves, the limits are decided by you.

Particles Features

4 trigger inputs/outs.

Repetitions with different distribution times to choose from.

Manually shift the output channels, scramble them randomly or clocked them in forward mode.

Reset the outputs to 4 different shift modes.

Disappear repetitions by probability per channel.

Disappear the input trigger by probability per channel.

Mute each channel with clock divisions from the input clock.

Mute manually the outputs

Disable triplets from repetitions to have musical patterns

Random voltages output clocked from clock input.

The slider keeps the adjusted value from each feature.
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 1 in stock $251.61
Raw Yaw Media Dizygote A-Side/B-Side Digital Oscillator Module
Raw Yaw Media Dizygote A-Side/B-Side Digital Oscillator Module (envelope generator/oscillator/dual/stereo module)
Cat: 978886 Rel: 15 Nov 23
 
A-side/B-side digital oscillator module with a built-in envelope generator - 10HP
Notes: Dizygote is an A-side/B-side digital oscillator with a built-in envelope generator. The A-side builds harmonies with a square waveform and frequency modulation. the b-side distorts a sine waveform with phase modulation.

Inputs:

Trig - button and gate in to trigger oscillator amplitude envelopes
Switch - button and gate in for toggling between the a and b sides
Length - knob and CV in for changing the envelope length
Mod - knob and CV in for changing the phase and fm modulation amounts
Mfreq - knob and CV in for changing the phase and fm modulation frequencies
Freq - knob for setting the oscillator frequency
V/oct - voltage per octave CV for modulating the oscillator frequency

Outputs:

Out L and out R - audio output
Env - CV envelope out
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Recovery Bleeding Hearts Random Sequencer/Rhythm Generator/Destroyer/Filter Module
Cat: 922063 Rel: 03 Apr 23
 
A sequenced bit crusher, distortion and filter module in 20HP.
Notes: Bleeding Hearts Eurorack Modular Device

(Random Sequencer, Rhythm Generator, Destroyer, and Filter)

The Bleeding Hearts is a device that starves, bit crushes, splatters, and filters audio sources like no other. Feeding a gate signal to the Bleeding Hearts enables a whole new world of strange and random analog-generated movement. Each position of the 8-step sequencer can bleed into each other and interact with the destruction effect, creating gated and filtered splatters, glitches, and crunches that move to the beat of your patch.

Designed and assembled in Seattle, Washington. Includes a limited 1-year warranty, if registered within 30 days of purchase.

20hp, 42mm deep.
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Ritual Electronics Altar II 3-Pole Crossfading State Variable Filter Module
Cat: 972534 Rel: 30 Sep 23
 
3-pole state variable discrete filter module - 12HP
Notes: Altar is a 3-pole state variable discrete filter.

Its discrete core is a brand new design made of modern discrete transistors. The filter can morph continuously from Bandpass to Lowpass to Highpass via CV.

By changing the input gain the character of the filter can go from very clean and vocal to a more distorted acidic sound.

Technical details

Eurorack 3U module
12HP wide
33.5mm deep (including connector)
Max power consumption: +12V: 37mA | -12V: 32mA | +5V: 0mA

2 inputs, In I with variable gain, In II with fixed gain
1 output, state variable with the Color setting
Voltage controlled Resonance
Voltage controlled Colour
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Rossum Electro-Music Locutus MIDI Mediator Module For Assimil8or
Cat: 940123 Rel: 29 Sep 23
 
MIDI mediator module - 6HP.
Notes: An expander module for Rossum's powerhouse Assimil8or sampler module, the Locutus provides MIDI in, out and thru connections over 5-pin DIN sockets, letting you take full control of the module alongside other MIDI gear.

Supplier's notes:
Locutus is designed to interface Assimil8or with MIDI instruments, controllers, and sequencers to provide multichannel modulation and new polyphonic possibilities.

Locutus includes a special cable to connect to the Assimil8or CPU behind the panel.

Locutus is 6 HP wide and 25mm deep.

More pricing and availability information is coming soon.

Locutus is on display in the MIDI Association booth #9901 at NAMM 2023 where Locutus and Assimil8or will be performing with a Rossum SP-1200 Reissue, an Oberheim OB-X8, and other new and vintage MIDI-equipped instruments.

MIDI Association booth #9901 is dedicated to the MIDI@40 Lifetime Achievement Award winners, including Rossum Electro-Music co-founder Dave Rossum.

From the MIDI Association: "At Saturday's anniversary celebration, lifetime achievement awards will be presented to (or posthumously honour) legendary music industry innovators who created the modern music production environment of synths, drum machines, and sequencers, including Bob Moog, Don Buchla, Ikutaro Kakehashi, Tsutomu Katoh, Roger Linn, Tom Oberheim, Alan Pearlman, Dave Rossum, and Dave Smith."
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SoundForce Chorus 6 Juno-Style BDD Chorus Module
Cat: 945650 Rel: 08 Sep 23
 
Juno style BDD chorus module with plenty of CV inputs in 16HP.
Notes: The SoundForce Chorus 6 is 16HP Juno style BDD chorus with plenty of CV inputs. It is using the Xvive MN3009 and the same audio path as the original circuit. It can do the classic Juno I, II and I+II modes. I+II modes are available from both the Juno 6 and Juno 60, each in mono (as the original) or stereo, giving you 4 I+II options. But the manual and external modes can take the module away from sweet and pretty sound territories right into weird and noisy soundscapes.

Some tech-talk:

A chorus effect is created by mixing a dry signal with a delayed signal. The delay time is modulated by an LFO to create more movement. To create some stereo width, the left and right modulation are 180 degrees out of phase. Exactly like the chorus in the Juno 6/60/106, the delay is made with MN3009 BBD chips. Also as in the original design, filters are added both before and after the BBD chips in an attempt to hide some of the artefacts of this very crude IC.

To get the audio "moving" through the chain of MOSFETs in the BBDs, driver signals are needed. This used to be done with the MN3101 BBD driver chip. Unlike the MN3009, there is no clone available of this ancient IC and this was a chance to add some modernity to the design. The drivers were replaced by a modern STM32 micro-controller along some extra ICs to convert the 3.3V logic to the negative voltage needed by the MN3009.

In order to recreate a genuine Juno-type modulation, the BBD driver signals of my Juno-106 were sampled over a few periods. Using the timer peripherals of the STM32, a replica of the BBD driver signals can be sent out to the MN3009's. Although the driver signals only follow a very basic triangle LFO shape and could have been generated using direct synthesis in the firmware, this method gives an exact copy of the original driver signals including all the potential imperfections.

Implementing a digital programmable chip also allows a digital-style interface with tactile switches and LEDs as in the original Juno interface. The last used mode is saved and loaded when the module powers on. The CV inputs (with the exception of the MIX CV) are acquired by the STM32 ADC and can modulate the BBD driver signals based on parameters in the firmware.

Features:

The SoundForce Chorus 6 has 4 main modes: I, II, I+II, MAN for manual and EXT for external. I and II are the classic Juno modes available in the Juno 6/60/106. Press both I and II to enter the I+II mode. While holding down I and II, press the OFF button to cycle through the 4 I+II options:

- Juno 60 mono - 1hz - 8% depth
- Juno 60 stereo - 1hz - 8% depth
- Juno 6 mono - 8hz - 25% depth
- Juno 6 stereo - 8hz - 25% depth

In I, II and I+II, only the mix controls can influence the sound, all the other parameters are fixed and CV inputs are not active.

Mix control:

Using the slide pot (fader) or the CV input, the mix between the dry input signal and the BBD delays output can be set. The orignal Juno balance is reached when the slide pot is in the middle (without CV connected). The mix control is a VCA-based crossfader and is 100% analog which means it can withstand really high audio rate frequency modulation.

MAN mode:

The manual mode gives you the opportunity to control every parameter of the chorus and gives you acces to the LFO that modulates the BBD delay times. Here is what you can tweak:
- time slide pot: sets the start delay time
- rate slide pot and CV input : sets the frequency of the delay time modulation
- depth slide pot and CV input: sets the depth of modulation around the start time
- mix slide pot and CV input: see above
- LFO wave: selection of different waveforms to modulate the delay time
- range: selection of 3 different frequency ranges for the LFO (S: 30Hz to 500Hz | M: 1Hz to 100Hz | L: 0.016Hz/1min to 10Hz)

In manual mode, the EXT IN CV input can be used to change the LFO wave, range or add additional modulation of the delay start time.

EXT mode:

In external mode, the BBD delay times can be modulated using an external signal through the EXT IN cv input. Plug in a CV source from your eurorack case into the EXT IN, set manually the starting delay time using the time slider and use the EXT ATT slide pot to attenuated the incoming CV signal (equivalent to setting the depth). In external mode, the depth/rate sliders and CV inputs are not active.

Stereo inputs:

The Chorus 6 can be used with either mono or stereo input signals. When the right channel is unconnected, the left channel is sent to the right jack so it can be used with mono signals. When using both inputs, each input signal is going through its own BBD delay line.

BBD delay time range:

The Chorus 6 gives you in the MAN and EXT modes a delay range that it is about doubled compared to the I/II modes. The original Juno chorus was using only a very limited range of the BBD chip and really stayed in the sweet spot. Extending to the full spectrum of the MN3009 yields pretty horrible high pitch noise at audio rate modulation, so the range has been limited to a usable section. When you apply high frequency modulation with great amount of depth, the delay time will be pushed in the extremities of its time range and quite nasty artifacts will appear in the form of squeaks and whines. Please note this is a characteristic of the BBD. If you want to reduce those artifacts, reduce the depth of modulation. On the other hand, if you are looking to add characteristic and vibe to the sound, audio rate modulation and plenty of depth will help you to get there.

Input levels:

Both Eurorack and Line level signals can be used as input for the Chorus. A small slide switch between the 2 PCBs can switch between Euro and Line. In Euro levels, the input signal is attenuated to an healthy level that is well below the BBD distortion point. Some headroom is also needed as the chorus is a sum of the input signal and the modulated delayed signals. For that reason, when the chorus is turned off the output attenuation is about 50% of the input level. When the chorus is on, the resulting output amplitude is similar to the input level. Line levels are also accepted by the module when the switch is on Line. Please note that Line levels input will be amplified to the Eurorack levels range at the output of the module. So the output levels are Eurorack in both Euro or Line input ranges.

Specifications:
16HP
Depth: 38mm (including power connector)
Power: +12V 76mA, -12V 35mA
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Teia Synthesizers OpticTone Vactrol Filter & VCA Module
Cat: 937614 Rel: 16 Feb 24
 
Vactrol filter & VCA module - 10HP.
Notes: The OpticTone is a combination of a 12dB multi-mode Vactrol Filter and a Vactrol Voltage Controlled Amplifier.

It is a completely original circuit inspired by the singular nature of Vactrols and their fluid and natural character.

The Filter section provides the three fundamental filter types: Lowpass, Bandpass and Highpass.

A Resonance knob with voltage control input is available for improved modulation flexibility. The feedback knob interacts with the Resonance path, tempering it from creamy resonance to wacky self-oscillation.

Filter and VCA run in parallel, both are controlled by the Freq/Amp knob and it's associated voltage-control input. The combination of both signals can be crossfaded with a dedicated knob.

The Freq/Amp is also controlled with direct touch control on the panel via the 3 lines below the knob.

The filter frequency control can be inverted by the Inv Freq switch, providing the possibility to change the filter direction. This feature allows the filter to "close" when the VCA is "opening" or the other way around.

The Ping input allows to generate the well known vactrol filter percussive sounds if a gate or trigger signal is provided. The Ping frequency if controlled by the Freq/Amp knob, ranging from low kicks drums to high pitch bongos.

There is also a Drive knob to take care of your saturation needs. The Overdrive range is wide, from soft textural clipping to heavy distortion.

All voltage controlled inputs have an attenuator-inverter knob.

Features:

Vatrol based 12dB multi-mode Voltage Controlled Filter: Lowpass, Bandpass and Highpass.
Vactrol Based Voltage Controlled Amplifier.
Crossfade between VCF and VCA section.
Voltage controlled Resonance.
Ping Input for percussive sounds generation.
Cutoff Frequency polarity inversion switch. Doesn't change VCA polarity
Overdrive and Feedback controls.
Attenuator/inverter knobs on all voltage controlled inputs
Touch control over Frequency and Amplitude.


Specs:

Width: 10HP
Depth: 33mm
Power consumption: 55mA +12 / 55mA -12
Eurorack Format
Doepfer power connection
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Teia Synthesizers SkipLog Rhythmic Probability Processor Module
Teia Synthesizers SkipLog Rhythmic Probability Processor Module (clock modulator/drum/logic/looper/sequencer module)
Cat: 996629 Rel: 16 Feb 24
 
Rhythmic probability processor module - 8HP
Notes: SkipLog, a probability processor with sequence capturing and looping features, along a range of other versatile functions waiting to be explored.

SkipLog is a 3-channel rhythmic probability processor designed for inventive rhythmic exploration in modular setups. Introduce unpredictable rhythmic possibilitis to your creative flow.
SkipLog's basic operation is simple: when a trigger or gate is received at one of its three channels' inputs, the same channel’s Probability knob allows you to control the likelihood of these triggers or gates reaching the output. This inputs are internally connected .

SkipLog continuously captures the binary outcomes of its use, storing them for potential sequences. Activate the Loop function to break from pattern creation and loop the recorded sequences. Individual Loop Length knobs for each channel allow adjustment of the loop sizefrom 1 to 16 or 32 steps (as selected on the back), providing evolving rhythmic patterns.

To fine-tune your arrangement, SkipLog introduces functions like Mute for real-time channel silencing, Inv for signal inversion, and Choke for establishing channel priorities. Lastly, the G/T (Gate/Trigger) Mode enables users to specify whether the channel output is a gate or a trigger.

Dimensions
8 HP
33 mm deep

Current Draw
100 mA +12V
22 mA -12V
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 1 in stock $203.71
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quote 996629
TipTop Audio ART V/Oct Quantizer ART Quad Quantizer Module
Cat: 1004139 Rel: 04 Mar 24
 
4-channel CV to ART quantizer module - 8HP
Notes: ART QUAD QUANTIZER is a four channel CV to ART Quantizer to play ART oscillators from CV sequencers, LFOs and anything that outputs CV. This is TipTop#s second ART controller option and is designed for those of us playing ART without a computer or MIDI source. The inputs take in positive, negative, bipolar CV voltages. Scales include Major Minor and the five other modes (Dorian, Lydian, etc). The module is simple to set up with a simple menu and one knob with switch for navigation. The 4th channel can be set to generate Chords and polyphonic note streams for ART Polyphonic oscillators.

Size: 8HP
Depth: 40mm / 1.5"
Power: +12V 38mA / -12V 4mA
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 1 in stock $253.71
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quote 1004139
TipTop Audio ATX1 VCO ART Analogue VCO Module
Cat: 947141 Rel: 04 Mar 24
 
Analogue voltage controlled oscillator module - 8HP
Notes: A classic all analogue saw VCO core with 3 switchable modes, ART, 1V/Oct, LFO and is recommended as the basic building block for ART systems. It is designed for patching analog polyphonic synths from discrete modules or multi-mono patches in ART mode. When using ART the ATX1 takes care of the tuning including accounting for temperature changes. In 1V/Oct mode the ATX1 runs as a standard old school modular VCO. LFO mode drops the frequency range and is great for patching vibrato to other ATX1s among other things. The ATX1 outputs variable waveshapes with manual or CV control. Classic FM, PWM and hard sync are provided. A dedicated Gate Out in ART mode manages the voice envelopes or any modulation synced to that voice. TipTop consider the ATX1 the best sounding analogue VCO they have ever created.

Size: 8HP - Depth: 40mm / 1.5"

Power: +12V 105mA / -12V 33mA
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 1 in stock $224.22
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quote 947141
TipTop Audio Z2040 LP-VCF 24db 4-Pole Low Pass Analogue VCF Module (black)
Cat: 955821 Rel: 21 Jul 23
 
24dB 4-pole low pass voltage controlled filter module - 8HP.
Notes: The Z2040 is TipTop Audio's redesign of the most famous analogue filter from the polysynths of the 80's and features Tiptop Audio's signature lush, big, and creamy sound. Its frequency sweeps make thick bass lines and leads with great dynamics. When modulated with audio frequencies through its various inputs, the Z2040 gets quite colourful and is capable of creating many new sounds and textures as the forces of the incoming waves and their harmonics blend through the filter's non-linear circuit. When set with Resonance feedback fully up, the Z2040 transforms into a pure sine-core VC-Oscillator, great for making snappy percussive elements and whistling sounds.

A look under the hood will find that the heart of the Z2040 is a discrete design 4-pole low pass filter with a core similar to that of the SSM2040 filter chip, used in the 80's Prophet 5 Rev 2 synthesizer, and its brother the SSM2044, used in the famous early EMU samplers and PPG synthesizers of the 80's. Both filters are considered by many to be, "the best sounding filter ever".

The Z2040's four modulation inputs are built to handle CV and audio signals, enabling deep modulation of the filter core and passing signals. A VC resonance input is provided to modulate and even clip the sine wave produced by the filter feedback loop. A Frequency Modulation input (FM) provides dynamic filter sweeps and the unique VC-FM index allows modulation of the incoming FM signals. On top of that, the Z2040 comes with an audio VCA that can be configured to act upon the input or the output of the filter.

Size: 8HP
Depth: 42mm
Power: +12V 20ma / -12V 20ma
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 1 in stock $210.29
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quote 955821
Xaoc Devices Batumi II 1974 Quadruple Low Frequency Oscillator Module
Xaoc Devices Batumi II 1974 Quadruple Low Frequency Oscillator Module (digital/LFO/oscillator/quad/random/clock generator/CV modulation module)
Cat: 979276 Rel: 13 Feb 24
 
Quadruple low frequency oscillator module - 10HP
Notes: An updated version of the excellent Batumi quad LFO, version II introduces performance updates plus compatibility with the new Poti II expander. Original Poti I breakout functions are now included in the Batumi II.

Supplier's Notes:
Xaoc Devices presents Batumi II - a greatly improved and enhanced new iteration of the modern day classic that is/was the original Batumi, preserving its layout and form factor. The premise remains the same: four LFO's with individual outputs for sine, assign and rectangle waves. The channels can operate independently or they can be linked - phase shifted, divided or multiplied (new mode alert) with regard to the first channel. Multiple major and minor improvements have been implemented, e.g. when synced to an external clock source, each channel's frequency slider selects a clock division for that channel's outputs.

Xaoc Devices have managed to incorporate the features of the original expander into Batumi II (sync mode switching and assign waveform selection) without changing the size of the module which opened up new possibilities for the new optional expander. The Poti II expander for Batumi II adds multi destination inputs for sine wavefolding, assign output waveform selection or rectangle pulse modulation with the destination set for each channel independently. Poti II also features frequency input attenuation as well as sine and assign output attenuation. All adjustments may be performed separately for each individual channel or for all channels simultaneously.

The Batumi II software has been rewritten from scratch to ensure best performance. The hardware has also been updated to allow for V/oct tracking and stable operation up to audio rates (more powerful CPU, precise, wideband converters, antialiased waveforms).

-4 LFO's
- redesigned from scratch - both the hardware and software
- new waveforms for the assign output (including random)
- new frequency multiplication mode
- all features of the Poti expander incorporated into the main module
- very wide frequency range well into audio rate
- 1V/oct tracking = so can be used as 4 VCO's
- in the Phase/Divide/Mult modes the random waves at the ASGN output follow the values available in the master/A channel
- 10HP
- +90/-50mA
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 2 in stock $272.66
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