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Items 1 to 50 of 689 on page 1 of 14
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Cat: 648928 Rel: 25 May 17
Compact programmable clocked modulation source in Eurorack format - 8HP
Notes: 'Pamela's NEW Workout' is a compact programmable clocked modulation source for your Eurorack modular synthesiser system. It provides 8 highly editable outputs producing various control voltage signals correlated and synced to a BPM based master clock.

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

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

Improvements have been made to overall clock stability and integration with external clocks and devices. Also new are dedicated MIDI and Din Sync clock outputs available via optional expander modules.
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 More than 10 in stock $225.85
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quote 648928
Cat: 734880 Rel: 10 Jul 19
Envelope module with two ADSR voltage controlled enevelope generators - 8HP
Notes: The module contains two ADSR type voltage controlled envelope generators with exponential curve shapes (charge/discharge curves of a capacitor) behind a front panel with 8 HP only.

Each ADSR provides these controls and in/outputs:

- LED (displays the envelope output)
- A: manual Attack control
- D: manual Decay control
- S: manual Sustain control
- R: manual Release control
- Gate Input
- Retrigger Input
- CVT Input with attenuator (CVT = CV Time)
- Envelope Output 1
- Envelope Output 2

The output voltage range for each envelope is 0 - 10V (10V = attack peak).

The time range of Attack/Decay/Release is about 1ms to 30s.

By means of internal jumpers one can select which time parameters are controlled by the CVT input (e.g. D only or D+R or A+D+R) and in which direction (i.e. if an increasing CVT shortens or stretches the time parameter in question).

Socket CVT can be normalled to an internal fixed voltage (i.e. the switching contact is connected to an internal fixed voltage). That way it's possible to change all time parameters simultaneously by means of the CVT control.

Another jumper is used to set output 2 to normal or inverted envelope.

And another jumper is used for the normalling of Gate 2 to Gate 1 (i.e. ADSR#2 is also triggered by Gate 1).

Two more jumpers are used for the optional bus access to the gate signal of the bus for each ADSR.
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 5 in stock $121.77
Cat: 734878 Rel: 09 Jul 19
Quad precision VCO - 18HP
Notes: A-111-4 contains four precision VCOs and has individual controls, inputs and outputs for each VCO available as well as a common control and output unit. After all the A-111-4 is very similar to four A-111-3 without LFO mode but built in output mixers for the three waveforms, and a master unit for all four VCOs.

Controls, inputs and outputs for each of the four VCOs:

- 1V/Octave CV input
- Octave switch (+1 / 0 / -1 octave)
- Tune control (range internally adjustable by jumpers: ~ 2 semitones / ~ 1 octave / ~ 4 octaves)
- Modulation CV input
- Modulation destination: Upper position: exponential frequency modulation (XM) / Lower position: linear frequency modulation (LM) or pulsewidth modulation of the rectangle (PM), selectable via internal jumper
- Frequency Modulation (FM) or Pulsewidth Modulation of the rectangle (PWM)
- Modulation intensity
- Triangle output
- Sawtooth output
- Rectangle output (about 50% without external PWM)
- Sync input (hard or soft sync internally selectable via jumper, CEM3340 hard sync type)
- CEM3340 based VCO (triangle core)
- Each VCO has it's own separate internal +/- power supply for each for best stability and the prevention of unwanted synchronisation of the VCOs

Controls, inputs and outputs of the master section:

- 1V/Octave CV input
- Octave switch (+1 / 0 / -1 octave)
- Tune control (range internally adjustable by jumpers: 2 semitones / 1 octave / 4 octaves)
- Frequency Modulation CV input (FM)
- FM intensity
- Triangle sum output
- Sawtooth sum output
- Rectangle sum output
- As soon as the single waveform output of a VCO is patched this waveform of the VCO in question is removed from the sum (this function can be turned off for each single output socket by means of solder bridges on the pc board, i.e. the sum contains then all signals independent of the patching of the single output)
- CV output (outputs the sum CV that is used to control all four VCOs)
- Bus CV (via jumper, optional, please remove the bus jumper if this feature is not used to avoid unwanted frequency modulation as then the unused CV line of the bus works as a kind of antenna)

Typical applications:

- Fat sounding monophonic VCO with the possibility to adjust any intervals
- Paraphonic patches in combination with the polyphonic CV interface A-190-5 (all four VCOs processed by one VCF/VCA)
- Full polyphonic patches in combination with the polyphonic CV interface A-190-5 and four complete VCF/VCA sections
- Complex VCO patches with up to four VCOs by means of the frequency modulation features (exponential an linear) and the sync functions
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 5 in stock $378.85
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quote 734878
Cat: 738649 Rel: 10 Jul 19
Multi-function module with LFO, switchable VCA, & VC delay - 8HP
Notes: Module A-147-2 is the successor of the VCLFO A-147 but offers much more features than the predecessor. The module is made of these sub-units:

- VCLFO: voltage controlled low frequency oscillator
- VCA: voltage controlled amplifier, switchable to voltage controlled polarizer
- VC delay unit: voltage controlled linear attack envelope (only one parameter: attack) for delayed LFO operation in combination with the VCA (e.g. delayed vibrato/tremolo)

LFO: The voltage controlled LFO has the waveforms Triangle, Sine, Sawtooth and Rectangle available and features a Reset/Sync input. Triangle/Sine and Rectangle are displayed by means of dual-colour LEDs (probably red/green), Sawtooth has a unicolor LED available (probably blue). The output levels are about -4V...+4V for Triangle, Sine and Rectangle. The Sawtooth level is about 0...+8V. The CV control can be switched to attenuator or polarizer ("CV Mode" switch). In polarizer mode the CV inputs affects the frequency in the reverse manner when the CV control is left from the centre position. In the centre position CV has no effect and right from the centre the control works like a normal attenuator. The frequency range (without external CV) is from about 0,005 Hz (i.e. about 3 minutes per period) to 200 Hz (with external CV max. frequency about 1kHz). In addition a ultra-low mode can be activated by means of an internal jumper. When the ultra-low jumper is set a fixed voltage is connected to the switching contact of the "LFO CV" socket. In polarizer mode of the CV control that way extremely low frequencies (up to one hour period and more) are possible. For this a jumper has to be installed on the pin header JP6. In the factory a dummy jumper is installed on the pin header JP7 "Dummy". JP7 has no function and is used only for "parking" of the jumper. Simply remove the jumper from JP7 and plug it on JP6. JP6 is located behind the CV control.

VCA: This is a linear VCA that can be switched to "normal" VCA (i.e. kind of a voltage controlled attenuator) or voltage controlled polarizer ("VCA Mode" switch). In the "normal" VCA mode amplification +1 is achieved with about +5V control voltage. In polarizer mode the amplification ranges from about -0.5 (i.e. inverted signal with about 50% level) with 0V CV to +0.5 (i.e. non-inverted signal with about 50% level) with +5V CV. With about +2.5V CV the signal is suppressed. Details about the functioning of a voltage controlled polarizer can be found in the description of the module A-133. In this mode the VCA can be treated also a DC coupled ring modulator (similar to A-114).

The VCA of the A-147-2 has three sockets available: "In" (signal input), "Out" (signal output) and "CV" (control voltage input).

The Triangle Output of the LFO is normalled to the VCA signal input by means of the switching contact of the "VCA In" socket. If another LFO waveform (or any other signal) should be processed by the VCA the corresponding signal has to be patched to the "VCA In" socket. The VCA can be used also independently from the LFO and the Delay CV. In this case the VCA sockets In, Out and CV have to be patched accordingly. The VCA can be used also as waveshaper for the LFO signals (e.g. by patching VCA In and VCA CV to different LFO signals, if necessary via attenuator A-183-1 or offset generator/attenuator A-183-2).

Attack/Delay: The third sub-unit of the module is a simple, voltage controlled envelope generator that has only the parameter "Delay" (or Attack) available. This unit generates a linear increasing voltage that starts from 0V after each Delay Reset until it reaches about +5V. Then the voltage remains at +5V until the next Delay Reset occurs. The inclination or gradient is controlled by the manual Delay control and the Delay control voltage ("Delay CV" input). The waveform is linear, the control scale is exponential. The output voltage is displayed by a green LED and available at the "Delay Out" socket.
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 1 in stock $123.85
Cat: 738640 Rel: 09 Jul 19
Voltage controlled sine-LFO with four separate, phase shifted outputs - 8HP
Notes: Module A-143-9 is a derivative of our planned thru-zero quadrature VCO. It is a voltage controlled sine LFO with 4 outputs. The phase shift between the outputs is 90 degrees. The sine shifted by 90 degrees is also called cosine, the sine shifted by 180 degrees is nothing but the inverted sine, and the sine by 90 degrees is nothing but the inverted cosine.

The frequency range is from some minutes to frequencies beyond audio with three ranges selected by a toggle switch:

- Switch position H: about 30 Hz ... 3.5 kHz with the manual frequency control ("Frq."), beyond 20 kHz with additional external CV
- Switch position M: about 1 Hz ... 150 Hz with the manual frequency control ("Frq.")
- Switch position L: about 0,1 Hz ... 10 Hz with the manual frequency control ("Frq."), down to several minutes with additional external CV

Two exponential frequency control inputs are available: CV1 without attenuator and CV2 with polarizer. Consequently the module can be used even as an experimental sine VCO but does not feature an exact 1V/oct CV input! The precision CV input will be left to the thru-zero quadrature VCO.

Two LEDs display the positive and negative share of the sine output.

The core of the module is a so-called quadrature circuit that generates a sine a cosine signal with very low distortion. The quality of the sine/cosine signals are much better than those generated by a waveform converter with a sawtooth or triangle signal as starting point.

The output levels are about 5 Vss (+/-2.5V) but can be adjusted internally by a trimming potentiometer (P5 "Shape").

Typical applications:

- External sine/cosine oscillator for the frequency shifter A-126
- Modulations with pure sine/cosine waveforms
- Quadrature/barberpole effects (e.g. with the voltage controlled mixer A-135)
- Experimental sine/cosine VCO (e.g. for FM sounds)

Many users suggested to add a common output level control, i.e. four VCAs with one common control (manual + CV without attenuator + CV with polarizer) for the output levels. This is why we also designed the Quad VCA module A-132-2 with the possibility of an internal default connection to the four outputs of the A-143-9 (no soldering required, short 10 pin flat cable with removable connectors on both ends).

The A-143-9 is also a meaningful addition for the Frequency Shifter module A-126. It enables frequency shifting even below 50 Hz generating e.g. these mellow beat sounds with a few Hz frequency shifting only. The following document describes how to connect the A-126 and the A-143-9: A126_A143_connection.pdf.

The thru zero version of the A-143-9 with temperature compensation is the module A-110-4.
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 1 in stock $75.97
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quote 738640
Cat: 577763 Rel: 10 Jul 19
8HP Eurorack module featuring two identical VCA's
Notes: Module A-132-3 is composed of two identical voltage controlled amplifiers (VCA). Each VCA has a manual gain control and a control voltage input with attenuator. The character of the control scale can be switched to linear or exponential. All inputs and outputs are DC coupled. Consequently, the VCA's can be used to process both audio and control voltages. The input has no attenuator available but is capable to process up to 16Vss signals (i.e. -8V...+8V) without distortion.
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 1 in stock $95.75
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Cat: 577767 Rel: 10 Jul 19
Voltage-controlled 24 dB low-pass filter - 8HP
Notes: Module A-120 is a voltage controlled low-pass filter, which filters out the higher parts of the sound spectrum, and lets lower frequencies pass through. The Cut-Off Frequency determines the point at which filtering takes effect. You can control this manually, or by voltage control (filter modulation, for instance by an LFO). Three CV inputs are available, and the sum of the voltages from these affects the filter cut-off.

The module is based on a so-called "transistor ladder" design, with a cut-off slope of -24 dB/octave, as in various Moog synthesizers. That's what gives it its classic, legendary Moog sound.

Resonance (or Emphasis) is adjustable all the way up to self-oscillation - in which case the filter behaves like a sine wave oscillator.
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 1 in stock $104.07
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quote 577767
Cat: 738621 Rel: 10 Jul 19
Voltage controlled envelope generator with decay parameter - 8HP
Notes: Module A-142-1 is a voltage controlled envelope generator. The only time parameter is decay (like TB303). Decay may be adjusted manually and via voltage control input (with attenuator). The envelope output is displayed with LED control. Additionally from the envelope signal a Gate signal and an inverse Gate signal with adjustable threshold is derived. LED control for Gate output. Thus one obtains a voltage controlled Gate additionally or alternatively to the envelope signal with voltage controlled duration.

The attack time is fixed to about 0.2 ms, the shortest decay time is about 2 ms. By changing the value of a capacitor the shortest time can be modified (details can be found here: A100_Capacitors.htm).

Typical applications: dynamic control of decay e.g. in combination with the Analog/Trigger Sequencer A-155, voltage controlled trigger delay functions (like A-162, but voltage controlled).
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 1 in stock $77.01
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Cat: 738619 Rel: 09 Jul 19
Voltage controlled envelope generator, standard edition - 14HP
Notes: The A-141-2 module is an ADSR envelope generator with voltage controlled attack, decay, sustain and release parameters. Other features include LFO functionality as well as digital end-of-attack and end-of-release outputs. Besides positive and inverted outputs there is an output with voltage controlled amplitude available.

Attack, Decay, Sustain and Release parameters of the A-141-2 can be adjusted manually as well as via control voltages. The CV inputs come equipped with attenuators. In addition, a Comm-CV socket was implemented. Control voltages fed to this input influence all time parameters (A, D and R) simultaneously. Thus, it is possible to make high pitched notes shorter and more percussive. - Just like the behaviour of many acoustic instruments. The time range of the envelope goes from 50 microseconds to six seconds. Using a toggle switch, it is possible to increase these values by a factor of ten (500 us to 60 s) or a factor of hundred (5 ms to 10 min). To activate the envelope, there are gate and retrigger inputs.

The A-141-2 is equipped with a normal and an inverted output. Both connectors work with a fixed level. Furthermore, there is a third, variable output. Here, before reaching the out socket, the envelope signal is fed to a voltage controlled VCA. - Perfect for velocity CV signals. A jumper on the circuit board allows you to choose between a unipolar and a bipolar mode of operation. Other jumpers make it possible to normalize the CV inputs.

Last but not least, there are two digital outputs called EOA and EOR, which emit a gate signal after the attack respectively release phase. This is useful for delayed triggering of other envelopes. By connecting EOA or EOR output to the gate input, you can make the A-141-2 oscillate like a LFO. Adjustments to the envelope times change the frequency and waveform. If you connect the Attack CV input to the inverted output or the Decay respectively Release CV input to the normal output, you can alter the curve characteristics.
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 1 in stock $139.46
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quote 738619
Cat: 738616 Rel: 10 Jul 19
Stereo headphone amplifier - 6HP
Notes: The A-139-2 is a headphone amplifier module with two mono inputs and a stereo headphone output. It can be used for driving small loudspeakers, LED strips, small magnets etc.

- Two-channel headphone amplifier
- Two audio inputs with level controls
- Input 1 is normalled to Input 2
- Common loudness/master level control
- Headphone output (stereo 1/4" jack socket)
- Max. output power ~ 2 W per channel (@ 8 Ohm load)
- DC coupled inputs and outputs (i.e. also useful for other applications like small loudspeakers, lamps, LEDs, magnets, motors - provided that the power is sufficient)
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 1 in stock $52.03
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Cat: 738645 Rel: 10 Jul 19
Low frequency oscillator with adjustable waveform - 8HP
Notes: Module A-146 (LFO 2) is a Low Frequency Oscillator, which produces periodic control voltages over a wide range of frequencies.

The LFO can be used as a modulation source for a series of modules (for instance pulse width and/or frequency modulation of a VCO, modulation of a VCF cut-off frequency, amplitude modulation with a VCA).

Three outputs are available, with different waveforms: sawtooth / triangle; square wave, and positive-voltage square wave.

The waveform is continuously adjustable from rising sawtooth, through triangle to falling sawtooth. The same control affects the pulse width of the square wave.

A three-way switch can select one of three frequency ranges, spanning from one cycle every few minutes, at the lowest, up to audio frequency at the highest.
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 1 in stock $67.64
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Cat: 738636 Rel: 09 Jul 19
Simplistic quad LFO module with intuitive front panel - 14HP
Notes: Module A-143-3 is a low-cost four-fold modulation oscillator, often called LFO (low frequency oscillator). Like the other modules of the A-143 series (A-143-1 and A-143-2) not a very "exciting" module, just a bread-and-butter device and a simple demon for work. The module contains four simple LFOs. Each LFO is equipped with three waveform outputs: triangle, rectangle and rising sawtooth. The frequency of the sawtooth output is twice the frequency of the other outputs. A three-way switch is used to select one of three frequency ranges mid-low-high, spanning from about two cycles per minute at the lowest, to moderate audio frequency at the highest (about 5 kHz).

If other waveforms or additional LFO features are required (e.g. reset input, adjustable waveform, voltage controlled frequency) the LFO modules A-145, A-146 and A-147 are available.
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 1 in stock $116.56
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quote 738636
Cat: 738639 Rel: 09 Jul 19
Four voltage controlled LFO's/ VCO's with triangle & rectangle outputs in one single module - 22HP
Notes: Module A-143-4 is a fourfold voltage controlled low frequency oscillator (LFO). As the frequency range includes moderate audio frequencies it can be used as a four-fold VCO too.

- Four independent VCLFOs/VCOs with triangle core
- Frequency range switches: low (bottom position) = LFO mode, high (top position) = VCO mode
- Two frequency control CV inputs for each unit
- CV1 without attenuator (~ 1V/oct)
- CV2 with attenuator
- Manual frequency control
- Internal jumpers for the frequency range of the manual frequency controls:
- Jumper not installed: ~ +/- 1 octave range (mainly for VCO applications)
- Jumper installed: ~ +/- 5 octaves range (mainly for VCLFO applications)
- Sync inputs: Combined Reset/Direction inputs for unit #1 - #3 / Separate Reset and Direction inputs for unit #4 (normalled sockets, i.e. Reset is connected to Direction if the Direction socket is unused) / Up/both/down direction switch for unit #4, for technical details concerning the Reset and Direction function please refer to the sketch below
- Triangle and rectangle outputs for each unit
- Typ. output voltage range -5V ... +5V for both outputs (i.e. about 10 Vpp, symmetrical with reference to 0 V)
- Red/yellow LED displays for the triangle outputs (red = negative output voltage, yellow = positive output voltage)
- Common control section with two CV inputs and manual control (these inputs and controls affect the frequency of all four units)
- Sum outputs for triangle and rectangle with red/yellow LED displays
- Optional ultra-low frequency mode: for this a negative voltage can be applied via a jumper internally to the CV2 input of each unit and the common section (i.e. a negative voltage is normalled to the socket CV2 in question). Then the CV2 - - Attenuator control works as a negative frequency control (i.e. turning up this control lowers the frequency). Herewith LFO periods up to about one hour (or even more) are possible.
- Optional CV bus access via jumper (i.e. the module can pick up the CV from the A-100 bus, e.g. generated by a Midi/CV or USB/CV interface A-190-x or a bus access module A-185-1/2), if the jumper is installed the bus CV affects all four units as the bus CV is added to the CV generated by the common control section
- Typ. frequency range: < 0.001 Hz (~ one hour, LFO mode with ultra-low option) ... 15 kHz (VCO mode with installed frequency range jumpers for the manual frequency controls)
- Heat-up time: ~ 15 minutes (required to heat-up the main circuit by the affixed oven)

The module was planned mainly as a quad VCLFO. But we added a range switch (nothing but a switch for two different capacitors) so that even audio frequencies are possible and the module can be used as VCO with some restrictions too. Because of the closeness of the main circuitry (i.e. four VCO cores within less ~ 1 square millimetre) the oscillators may lock if the frequencies are very close to each other and the VCO frequencies interact marginally. If a high quality quad VCO is required the A-111-4 is recommended as this module has four separate VCO circuits available.

The reset circuitry is optimized for the LFO mode. As it takes some time to discharge the oscillator capacitor the discharge time had to be chosen so that the capacitor is fully discharged in LFO mode. In the high range (where a much smaller capacitor is used) this will cause a zero state duration in the 0.3 ms range if the oscillator is synced (during this time the capacitor is shortened for discharge).
The control scale of the inputs "CV1" is about 1V/octave. To improve the behaviour in the VCO mode a tempco circuit is used to keep the temperature of the exponential converter at a fixed temperature (similar to the tempco option of the DIY SYNTH). That way the frequency of the VCOs (and even the VCLFOs) is nearly independent from the environment temperature. But the accuracy (1V/octave scale and temperature compensation) is not as precise as for the dedicated VCOs A-110 and A-111-1.
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 1 in stock $201.91
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quote 738639
Cat: 738632 Rel: 09 Jul 19
Quad Decay featuring four simple envelope generators - 8HP
Notes: Module A-142-4 contains four simple envelope generators. The only time parameter is Decay and can be adjusted manually by means of the Dec. control in the range 2 ms ... 2 seconds. The attack time can be adjusted internally by means of a separate trimming potentiometer for each sub-unit in the range 1 ms ... 15 ms. The factory setting is about 3 ms. This is the attack time of the TB303. Each envelope output has a LED control available. The trigger inputs are normalled (1 -> 2 -> 3 -> 4).

Suggestions for modifications:

Each sub-unit has a pin header with two pins available. When the two pins are shortened (e.g. by means of a jumper or a toggle switch connected to the two pins) the corresponding sub-unit changes to a loop mode. In this mode the unit is triggered by itself like an LFO..

By changing the value of a capacitor the time range can be modified (e.g. 0.2 ms ... 0.2 seconds or 20 ms ... 20 seconds)
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 1 in stock $92.62
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quote 738632
Cat: 738634 Rel: 09 Jul 19
Quad AD-generator with four independent Attack-Decay envelopes - 28HP
Notes: Module A-143-1 is a complex envelope generator that consists of Attack/Decay generators. For the complex envelope generator the four units are daisy-chained, i.e. the preceding unit triggers the following unit. The four units can be used even as four separate AD generators (switch position AD) or AD-type LFOs (switch position).

Details: Module A-143-1 contains four separate attack/decay type envelope generators. Each unit can be switched into a free running mode (LFO mode). The LFO mode differs in several points from a regular LFO (like A-145, A-146 or A-147): The slopes are exponential - in contrast to linear slopes of a normal LFO, and the frequency is defined by both controls. The attack control defines the time of the rising slope, the decay control the falling slope.

Each unit has available a comparator that compares the AD output voltage with a manually adjustable threshold and switches the corresponding comparator output (Cp 1...4) to "high" as soon as the AD output voltage goes in the decay phase below this value. The comparator output is normalled to the trigger input of the next stage via the switching contact of the trigger input socket. Consequently the first unit triggers the second, the second triggers the third and so on.

Each AD generator is equipped with a Polarizer (look at the Voltage Controlled Polarizer A-133 concerning details about the polarizer function) and a mixer that adds up all polarizer outputs. This allows to add up all AD/LFO output signals inverting or non-inverting with adjustable level to the mix output. Additionally a single output (Env 1...4) is available for each unit.

If the trigger input of unit 1 is controlled by a normal gate signal (e.g. from a keyboard resp. MIDI-to-CV/Gate interface) one obtains a very complex envelope signal at the mix output. The signal contains 8 segments controlled by Attack 1, Decay 1, Attack 2, Decay 2, Attack 3, Decay 3, Attack 4 and Decay 4. The transition between the stages (i.e. when the following AD generator is triggered) is controlled by threshold knob. The positive or negative contribution of each unit to the mix signal is adjusted with the Mixing Polarizer control. If the trigger input of unit 1 is controlled by the comparator output of unit 4 one obtains a 8 stage LFO.

The single AD outputs can be used to control VCAs or VCFs that open one after another corresponding to the AD signals (a little bit similar to the Shepard generator A-191).

The default-connection between the four units (CPn = Trig.n+1) can be interrupted by patching cables into the trigger inputs. Consequently the four units can be used as separate AD generators or LFOs. In any case the mix signal is available (e.g. mix of four AD generators or LFOs with adjustable level and sign).

In the LFO mode the comparator output serves as LFO rectangle output with adjustable pulse width (= threshold control).

Each unit is equipped with a separate LED display for envelop and comparator output. The shortest attack/decay time is about 5 ms, the longest attack/decay times are about 3 seconds (attack) / 10 seconds (decay). By changing the value of a capacitor the shortest time can be modified (details can be found here: A100_Capacitors.htm).

The sketch at the bottom of the page shows the module principle with 4 daisy-chained AD units (as predetermined by the normalled sockets), that are mixed with the integrated polarizing mixer.
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 1 in stock $170.69
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quote 738634
Cat: 577791 Rel: 10 Jul 19
VCA with exponential response for low level sensitivity - 8HP
Notes: Module A-131 provides voltage-controlled amplification. For audio signals, you would normally use the exponential VCA (A-131), and for control voltages, the linear VCA (A-130). It doesn't always have to be that way, though.

The amount of amplification the VCA's provide is determined by the voltage at the CV input, and the position of the gain control, which sets the overall gain in the system.

The VCA has two audio inputs, each with an attenuator. They are amplified by an amount determined by the combination of the gain and the two CV controls.
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 1 in stock $71.81
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quote 577791
Cat: 738617 Rel: 10 Jul 19
Versatile module that can also be used as a modulation device - 8HP
Notes: Module A-140-1 is an envelope generator, and, since it puts out control voltages, counts as one of the modulation devices in a modular system. As soon as the gate input receives sufficient voltage, the ADSR generates a variable voltage, changing in time, called an envelope. This varying voltage is output in normal (positive) and inverted form, and can be used, eg. for voltage controlled modulation of a VCO, VCF, or VCA, or for processing other modules' inputs and outputs.

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

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

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

Module A-140 has available a three-position toggle switch to select one of three time ranges. The time ratios for the three ranges are about 1 : 20 : 1000. The absolute Attack times are about:

20uS ... 100ms (switch position L)
400uS ... 2s (switch position M)
20ms ... 120s (switch position H)
The Decay and Release times are about 3-4 times more. Because of the exponential slope and the gradual asymptotic approach to the zero level the exact specification of the decay and real times is a bit difficult.

The voltage ranges of the ADSR outputs are about 0 ... +8V for the two normal outputs and 0 ... -8V for the inverted output.

In combination with the Comparator module A-167 a free-running "ADSR-LFO" can be realized.
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 1 in stock $76.65
Cat: 681306 Rel: 24 Jul 18
Multi-algorithm macro oscillator - 12HP
Notes: Plaits is the spiritual successor of Mutable Instruments' best-selling voltage-controlled sound source, Braids. Not just an MKII version: its hardware and software have been redesigned from scratch.

Just like its predecessor, it offers direct access to a large palette of easily tweakable raw sonic material, covering the whole gamut of synthesis techniques.

Simplicity first:

Gone are the screen, menu system, hidden settings, and the long list of somewhat redundant synthesis models.

Thanks to additional CV inputs, and to the use of three timbre-shaping parameters per model, Plaits is straightforward to use, and much closer to the ideal of one synthesis technique = one model. What were fragmented islands of sound in Braids are now part of a continuum of sounds.

Ready for percussion:

Patch a trigger generator or sequencer into Plaits' trigger input and instantly use the module as a percussive source thanks to its built-in virtual low-pass gate (LPG).

An internal D (decay) envelope generator is normalled to all unpatched CV inputs. Just turn the corresponding attenuverter to add pitch, timbre or morphing modulation. And if plucks and snappy hits are not your thing, patch your own envelope or CV source into the LPG CV input.
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 More than 10 in stock $183.18
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quote 681306
Cat: 685134 Rel: 24 Jul 18
Random gate/voltage generator - 18HP
Notes: Marbles is a source of random gates and voltages, which offers an extensive amount of (voltage) control on all the different flavours of randomness it produces.

The module gives the musician many different ways of imposing structure on the random events generated by the module: synchronization to external clocks, control of the repetition or novelty of the generated material, quantization of the voltages, or randomization of gates or voltages generated by traditional sequencers.

T: The random gate generator

Marbles either follows its own internal clock, or locks onto an adjustable multiplication/division of an external clock (or regular rhythmic pattern). This regular clock is perturbed by a process simulating an musician playing along a click and trying to catch up on their errors - from perfect accuracy to complete chaos.

From this imperfect master clock, a 2-channel random rhythm is generated, using one of the following processes: random coin toss (similar to Branches), random ratcheting, or random drum pattern generation (similar to a randomly modulated Grids).

X: The random voltage generator

This generator produces 3 channels of random voltages, each of them clocked by the individual outputs of the t section, or by a common external clock signal.

Complete control on the distribution of the output voltages is provided: concentrated or spread-out, quantized or unquantized, smoothed or steppy, centred or biased towards a specific voltage. The same transformations can be performed on an external CV, for sample-and-hold or shift-register operation.

An auxiliary slowly fluctuating random voltage output (Y) is also available for self-patching fun!

A feeling of deja-vu:

Marbles remembers the history of every recent clock deviation, rhythm or voltage it has generated. The DEJA VU knob on the panel controls the probability of reusing past material instead of sampling fresh random data.

You are thus given control on the feeling of repetition and structure in the generated random voltages and rhythms. At the extreme, the module no longer generates any novel values and loops over the same pattern (or a random permutation of it). And of course, this (variably) random looping can be performed on external CVs!
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 More than 10 in stock $237.30
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quote 685134
Cat: 686269 Rel: 27 Apr 18
Universal, patch-programmable modulation source - 14HP
Notes: ASR envelope, complex 6-stage envelope, LFO, 4-step sequence or switched LFO: Stages can be any kind of modulation.

Not because all these behaviours have been pre-programmed in the module, but because it allows you to describe your own modulations in terms of basic operations: ramp from one voltage to another, hold a voltage at a set level, wait for a trigger and slew. With or without looping.

Whether you need one complex envelope, or several simpler modulations, Stages reconfigures itself according to which of its gate inputs are patched. There is always a role for it in your patch.

That's it. Really, there isn't more to the story.

Self-generating chiptunes? Very weird LFO shapes? Random gate delay? Stages probably does strange and wonderful things when patched in a certain way.

Flexible input/output layout:

The module detects the presence of jacks on its gate inputs to group its segments: whether it is configured as a complex 6-stage envelope, or 6 individual envelopes, or 3+3, 2+4... depends simply on how you patch it. Dummy patch cables might come handy!

When used as a multi-segment envelope, a segment activation signal is produced on all secondary outputs - for example to trigger an external event when an ADSR envelope enters its decay, sustain or release stages.

In case more than 6 segments are required, up to six modules can be chained together thanks to a connector at the back of the module.

Three segment types:

- Ramp segments go from one voltage to another, in a CV-controlled amount of time, with an adjustable curve (accelerating, uniform, decelerating). They are the building block used for the attack, decay or release segments in envelopes... or for LFOs.
- Hold segments stay at a constant (but CV-controllable) voltage for a programmable amount of time. They serve as the sustain or hold segments in envelopes.
- Step segments glide to a target (CV-controllable) voltage, then stay at this voltage for a certain amount of time until a trigger is received. They are the main ingredient for step sequences, but also for building sequential switches or a sample-and-hold.


A segment, or a group of segments, can loop on itself: if the last segment of the envelope is included in the loop, the loop lasts forever. Otherwise, the loop remains active while the gate is high, then continues past the last segment of the loop. These two behaviours allow the creation of self-looping envelopes (LFOs), or the sustain stage of a good old ADSR envelope!

Single segment processing:

Even when they aren't part of any group and don't receive any gate or trigger signals, individual segments can perform interesting functions: Ramp can loop on itself and turn into an LFO, Hold can delay a CV and Step can slew it.

Now patch a trigger signal: the self-looping Ramp turns into a tempo-synced LFO, the Hold segment becomes a pulse generator, the Step segment a sample-and-hold.
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 More than 10 in stock $206.07
Cat: 643380 Rel: 27 Mar 17
Buffered multiple module in 1U
Notes: Dual 1 x 4 buffered mult (one audio or cv signal in with multiple buffered outputs).

The output of the first mult is normalled to the input of the second mult to create a 1×8 buffered mult.
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 9 in stock $40.07
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quote 643380
Cat: 633762 Rel: 05 Jan 17
CV sequencer with eight channels, each containing up to 16 steps
Notes: 8 independent 16-stage CV sequencers packed with performance features and presets makes the Voltage Block the ultimate CV tool. Create quantized or unquantized sequences for each output, record your modulation changes, tie sequences together, mute on the fly, randomize your outputs and so much more. The Voltage Block can be used stand-alone or pairs well with Varigate 4 and especially Varigate 8+ to share clocking and preset save/recall. All in 20hp.
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 4 in stock $292.46
Cat: 728383 Rel: 09 May 19
New and improved version of the Qu-Bit Chord - 14HP
Notes: Polyphony is back!

Chord v2 is a plug and play solution for bringing musical polyphony to your system. It contains four oscillator voices, a multitude of waveforms, and intelligent tuning functionality. This new version features an expanded sonic palette and feature set in half the size of the original.

It features three primary modes of operation: Chord, Free Running, and Unison. These three modes allow the oscillators to be tuned as diatonic chords, run independently of each other, or be tuned to the same internal frequency for external v/oct sequencing through independent CV inputs.

The timbral possibilities of the Chord v2 bring its polyphonic tones to life. The module ships with eight banks of waveforms encompassing traditional shapes, vocal synthesis, organ emulation, and chiptune sounds. You can also load custom wavetables using the SD card slot on the front panel.

From harmonic drones to Switched On Bach, the Chord v2 is an unparalleled addition to any Eurorack modular.

Changes from v1:

- Half the size! 14HP down from 28HP
- Eight banks of waveforms
- Full polyphonic mode
- Harmonize in minor mode
- Custom wavetable compatibility
- Expanded chord types
- Improved synthesis engine
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 4 in stock $264.36
Cat: 689804 Rel: 03 Sep 18
Innovative quad envelope - 10HP
Notes: Zadar is a powerful, four-channel envelope, modulation, and transient generator, in a compact yet very complete, feature-rich package. It is capable of synthesising a vast palette of envelope shapes starting from hundreds of shapes stored in the memory. These starting shapes are not mere wavetables, but flexible vectors that can be stretched (from a fraction of a millisecond to half an hour), flipped, warped, distorted, delayed, shuffled, repeated, and amplitude modulated in real time. A set of freely assignable CV inputs allows for external control of most parameters. Each channel can work independently or combined with other channels within one of the chaining and looping algorithms.

Operating Zadar is quick and immediate, thanks to its accessible interface and crisp OLED display. The main screen displays all parameters together with the currently selected shape. Entering the simple 3-page menu is needed only for advanced settings.
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 9 in stock $278.93
Cat: 641949 Rel: 18 Apr 17
Analog-inspired parameterized drum synthesiser
Notes: Basimilus Iteritas Alter is a parameterized digital drum synthesizer with its roots in the analog world. At its heart, it is a simple six-oscillator additive synthesizer with adjustable waveform, harmonic spread and decay. Adjustable attack including a noise oscillator is also included. dLese are summed and fed into an in..nifolder for crunch and variety.

Basimilus Iteritas Alter is an improved version of Basimilus Iteritas. It is 2HP smaller, includes CV of switches, adds an third mode, and pitch range and knobs know offset rather than attenuate.

Size: 10HP Eurorack
Depth: 1.5 Inches
Power: 2x8 Eurorack
Draw +12V: 150 / 80
Draw -12: 5 / 5
Draw +5v: 0 / 90
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 2 in stock $312.24
Cat: 643379 Rel: 13 Sep 17
Quad voltage controlled amplifier & cascaded mixer - 12HP wide
Notes: The Quad VCA is a compact and feature packed module that is sure to find its way it almost all of your patches. In addition to being used for standard VCA duties it can also be used as a mixer and signal booster.


- Manual LEVEL control per VCA which is convenient when using the module as a mixer or for biasing when CV modulating the VCA with a bipolar LFO.
- Dedicated CV attenuators with dual colour LEDs for monitoring bipolar CV signals.
- Continuously adjustable response from linear to exponential per VCA.
- Each CV input is normalled to the adjacent one for cascaded control.
- Each output is normalled to the mix input of the adjacent one which allows you to use adjacent sets as submixes or the fourth output can be used as a master mix output when none of the other outputs are patched.
- Each VCA has a boost switch that increases the output level by approximately +6dB (double).
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 1 in stock $174.85
Cat: 621354 Rel: 28 Nov 16
Quadruple Low Frequency Oscillator (LFO) synth module in Eurorack format - 10HP wide
Notes: Batumi is a fully voltage controlled, quadruple digital LFO module with a slew of interesting and user-customizable features. Each oscillator can be used independently or in one of 3 synchronized modes: quadrature, phase and divide. For each oscillator, there are sine, square and assignable (saw, ramp, triangle and trapezoid) waveform otputs available. Voltage control is possible for each oscillator's frequency, reset, and external sync ("tap tempo"). The total frequency range spans from 28 hours in voltage controlled divide mode, up to 500 Hz.
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 6 in stock $249.79
Cat: 718920 Rel: 23 Apr 19
Expansion module for Zadar - 3HP
Notes: An expander for Zadar, adding one more assignable input for each Zadar channel and manual triggers.
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 4 in stock $57.24
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quote 718920
Cat: 690936 Rel: 18 Apr 19
Dual-channel drum sample module - 14HP
Notes: Performance oriented Sample Drum brings you two independent drum sounds or loops with plenty of manual and CV controlled parameters. Samples are stored on the microSD card, and OLED screen makes working with samples instant and easy.

Sample Drum allows you to slice up loops directly in your modular system and rearrange them to taste. For processing, there are tuning functions (including 1 v/octave pitch tracking) and virtual VCAs plus AD envelopes. Thanks to the module's dual-channel concept, two loops can be combined. It is also possible to load one-shot samples instead of entire rhythms, of course. A total of six CV inputs guarantees lively results.

Sample Drum is composed of two identical audio players. WAV files (including cue points) are fed to the module via a micro SD card. Loops can be cut into several sections using the Data, Start and End potentiometers. The resulting slices may be played back in any order imaginable. A tune control allows real-time pitch changes. Additionally, there is a virtual VCA plus AD envelope per slice. - But that's not all! There are three CV inputs per channel, which can be routed to any parameters. It is even possible to play sounds according to the 1 v / octave standard. Results are emitted via one output per player.
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 More than 10 in stock $308.08
Cat: 728570 Rel: 16 Jul 19
26HP Eurorack spectral re-synthesiser module
Notes: Rossum Electro-Music Software Architect Bob Bliss (who also, as it happens, fathered E-mu's famed "EOS" Emulator Operating System) has created Panharmonium, a unique music and sound design tool that analyses the spectral content of any audio signal and uses that analysis to drive a bank of from 1 to 33 oscillators. Depending on various control settings, Panharmonium can accurately reproduce the input spectrum in real time or modify it in a multitude of wildly creative ways. All with an interface whose immediacy encourages performance and interaction.

Panharmonium input can be anything from a single oscillator to an entire mix (including vocals). From dense, swirling pads and drones that evolve with the input's changing spectrum, to clock-syncable spectral arpeggiation, to as-yet unnamed harmonic effects, Panharmonium opens up an entirely new world of sonic possibilities.

Additionally, Panharmonium can take a snapshot of an instantaneous spectrum and use that as a complex harmonic oscillator, which can then be modified and modulated by all of Panharmonium's other controls.

Panharmonium accomplishes its magic though a combination of functional submodules:

Spectral Analyser:

The Spectral Analyser provides tools for defining the analysis process.

- The Slice parameter sets the rate at which the incoming audio is transformed to spectral data. It can be set by the Slice and Multiplier controls, the Tap button, or by an external clock signal. Very short slice times result in real-time spectral data, while longer times can create rhythmic spectral patterns.
- The Centre Freq and Bandwidth controls (and associated CV inputs and attenuverters) control the range of frequencies to be analysed. The Bandwidth control allows the selection of narrow to wide pass bands on the left side of the pot and narrow to wide notches on the right side of the pot. The ability to sweep the frequency and modify the bandwidth under CV control opens up a wide range of sonic effects.
- The Freeze button lets you freeze the spectral integrator, sustaining the currently analysed spectrum.

Spectral Modifiers:

These controls allow you to creatively modify the analysed spectra.

- The Voice parameter lets you select from 1 to 33 oscillators to resynthesise the spectrum.
- The Blur parameter (and associated CV input) is a spectral lag processor that controls how quickly the spectrum can change.
- The Feedback control (and associated CV input) lets you route the re-synthesised audio back into the entire processing chain for subtle or dramatic feedback effects. At its max, the output becomes self-sustaining, even if the input is removed.

Oscillator Bank:

The Oscillator Bank resynthesises the analysed spectra.

- The Waveform parameter selects the oscillators' waveform. In addition to the usual sine, triangle, sawtooth and pulse waveforms, two special crossfading sine and sawtooth waveforms are included.
- The Freq control lets you tune the oscillators over a +/-7 semitone range. The frequency is further controlled by the 1V/Oct input and the FM input and attenuverter.
- The Octave control, not surprisingly, shifts the pitch of the output by octaves.
- The Glide parameter sets the amount of polyphonic glide (i.e., each oscillator has its own glide circuit).
- The Mix control (and associated CV input) sets the balance between the original input audio and the resynthesised audio.

Optional Functions:

A number of optional functions can be selected by using the Output Mode and Tap buttons.

- Holding the Output Mode button and adjusting the Slice control enables Drums Mode, which optimizes the spectral analysis for drums and other percussive inputs.
- Holding the Output Mode button and adjusting the Centre Freq control allows you to instead set the lower frequency of the analysis range.
- Holding the Output Mode button and adjusting the Freq control enables Spectral Warping. In contrast to conventional frequency adjustment, where the harmonic relationships between the spectral elements are preserved, Spectral Warping shifts the harmonic elements individually, producing a variety of clangourous, swarming textures.
- Holding the Tap button and adjusting the Freq control quantizes the resulting frequency adjustments to semitones.

Spectra Memories and Presets:

Panharmonium provides 12 user Spectra memories and 12 user Presets (in addition to 12 each factory memories).

- The Spectra memories let you store up to 12 frozen slices. When selected, a spectrum (up to 33 oscillators wide!) replaces any live input and can have its pitch controlled by the 1V/Oct input and FM controls.
- A Preset is a snapshot of all of the module settings, along with the value of any CVs present at the moment the preset is saved.

Panharmonium is 26HP wide and 25mm deep.
Power requirements (max): 140mA +12V, 30mA -12V. Reverse polarity protected.
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 7 in stock $497.51
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quote 728570
Cat: 638949 Rel: 31 Jul 17
Experimental sampler module - record, slice & rearrange audio material
Notes: The Morphagene is a next generation tape and microsound music module that uses Reels, Splices and Genes to create new sounds from those that already exist. Search between the notes to find the unfound sounds.

A few of the Morphagene's most basic uses: Splice recorded audio and jumble it using ORGANIZE. Manipulate playback speed and direction with Vari-Speed. Granularize with Gene-Size and Slide. Layer or Stagger Genes using MORPH. Undertake iterative music processes by recording manipulations and overdubs into new Splices, like having two machines (one for Playback and modulations, one for Record). Process sound in real time using Time Lag Accumulation. Utilize envelope following CV OUT and EOSG Trigger to engage Morphagene in conversation with the rest of your modular system. Stretch and squash sound with Clock input.

Width: 20hp
Max Depth: 30mm
Power: 165mA @ +12V, 20mA @ -12V

***MG137 Firmware Update:

Change Log

1. Improves Vari-Speed response for slow modulation rates.

2. Improves SD Card file format for more compatibility with software .wav file formats.

3. Doubles total record time per Reel.

Upgraded memory performance offers an increase from 1.45 minutes to 2.9 minutes of record time.

If you are using Splices that are over 1 minute long the SLIDE parameter will be scanning across a massive amount of material and therefore the longer the Splice the longer it will take to get to where you are Sliding toward. Imagine a tape machine shuttling forward or backward to get to your desired destination. No we cannot change this, the MG is scanning as fast as possible. This new double record time firmware will make this even more of a factor.

Read and Write times will be MUCH longer when you have a Full 2.9 minute reel. So for example, if you decided to erase a 5 second Splice in the middle of a 2.9 minute reel it will take twice as long as before because the MG must re-write the entire 2.9 minute reel. Of course all of this is happening in the background and should not cause too much hassle. Still when that SHIFT button is flashing it is best to not perform more SD Card actions.

For most granular processing Splices of 10 seconds or less are recommended.

So why even bother increasing record time to 2.9 minutes? Well it allows for storing even more Splices on a Reel and it also makes it possible to record long portions of a patch for later arranging within your DAW. You could potentially capture a patch, including modulations of a shorter Splice (say 10 seconds), retrieve the sound from the SD Card and compile into a larger work using your DAW.

4. Increased max number of Splices to 300.
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 4 in stock $496.47
Cat: 731192 Rel: 19 Jun 19
CV-controlled 5-channel stereo mixer - 10HP
Notes: X-PAN is a compact and powerful 5 channel Voltage Controlled Stereo Mixer with Low Noise and High Headroom allowing for creation of complex panoramic audio imagery in just 10hp.

X-PAN is highly responsive to control signals allowing for exploration of the fluctuating stereo sidebands possible with Audio Rate Crossfading and Panning. X-PAN is Direct coupled for use as a CV Processing and Routing toolbox.

X-PAN consists of two full featured Channels and one simpler Channel. The top two Channels each have voltage controlled cross-fading and panning while the third Channel is a stereo aux input with stereo VCA. All three Channels are combined together at the stereo SUM outputs.
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 More than 10 in stock $207.13
Cat: 673868 Rel: 12 Jan 18
Versatile audio mixer module - 6HP
Notes: Mixup is a versatile, expandable audio mixer for Eurorack format. It has eight inputs (6 on the front panel) and two outputs. Inputs 1 and 2 are single-channel mono inputs, each with its own mute switch and level control; Input 3 is a dual-channel stereo input with a shared mute and level control; and input 4 is an auxiliary unity-gain, non-mutable stereo input.

Using bus connectors on the back panel, you can chain multiple Mixups together in series, giving you the ability to mix together even more inputs, or to create sub-mixes for routing around larger systems.

Because Mixup is designed specifically for audio (and not for CV mixing), it uses AC-coupled circuitry (which reduces the potential for 'pops' when muting and unmuting audio), and it uses audio-grade, logarithmic attenuators for a smooth, even response across the entire volume range.
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 More than 10 in stock $87.42
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quote 673868
Cat: 686670 Rel: 27 Apr 18
8 great sounding custom stereo effects in just 3HP
Notes: Pico DSP is a small brother of the popular stereo effects processor Black Hole DSP. It contains eight algorithms, in detail four delays, two types of reverb, Leslie speaker emulation and an Overdrive/Bitcrusher. Each effect is editable in two parameters. One of them can be modulated using the CV input. Pico DSP features clear, high-resolution sound. Alongside the established standards, it is also possible to generate lots of freaky special effects.
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 1 in stock $134.26
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quote 686670
Cat: 557488 Rel: 19 Dec 14
Analog computer synth module designed for musical purposes
Notes: MATHS is an analog computer designed for musical purposes. Amongst other things, it will allow you to:

- Generate a variety of linear, logarithmic, or exponential triggered or continuous functions
- Integrate an incoming signal
- With no signal applied, generate a variety of linear, logarithmic, or exponential functions
- Add, subtract and OR up to 4 signals
- Generate analog signals from digital information (Gate / Clock)
- Generate digital information (Gate / Clock) from analog signals
- Delay digital (Gate / Clock) information
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 3 in stock $274.77
Cat: 648930 Rel: 25 May 17
Expander module for Pamela's New Workout - 4HP
Notes: Pexp-1 is an expander module for Pamela's NEW Workout offering additional dedicated fixed clocked outputs.

Extend Pam as a master to clock external gear with a super solid MIDI & Din Sync dedicated clock outputs.

Use extra fixed jack clocked gate outputs to free up Pamela outputs for more exotic modulation duties.

Connects to, and powered by, expander header on rear of Pamela's NEW Workout. Only a single expander is supported at any time.
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 6 in stock $97.83
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quote 648930
Tiptop Audio Happy Ending Kit (black) (modular synth starter kit)
Cat: 590437 Rel: 10 Nov 15
Modular starter kit containing rails, rack ears and power supply
Notes: The Happy Ending Kit is an easy way to get everything needed to start a Eurorack modular system.

The Happy Ending Kit includes:
1 x Z-Rails set plus screws to attach to Z-Ears
1 x uZeus 4HP PSU with 2 x flying bus boards
1 x UK 3-pin mains adapter
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 2 in stock $143.62
Cat: 563664 Rel: 10 Mar 15
Complex multi stage pitch and gate sequencer synth module, 34HP wide
Notes: The Metropolis is a unique and powerful musical sequencer inspired by the Ryk M-185 (a Roland System 100m format sequencer.) but with many additional enhancements and functions.

The Metropolis comprises eight "STAGES", each with its own assignable gate mode, pulse count and pitch value. Each stage can also have a special slide or skip function activated too. The slide functionality is a constant time portamento very similar to the Roland TB303 (unlike most synths/sequencers that use constant rate portamento) which produces a very musical and interesting result.

In addition to the base sequencer settings set with the sliders and switches there is a full menu of controls and auxiliary modifiers that allows the user to control and manipulate the sequence in many powerful ways including sequencer direction modes, pitch quantization and scale manipulators, clock dividers, shuffle and much more
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 5 in stock $541.22
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quote 563664
Cat: 590918 Rel: 26 Oct 15
Dual Low Pass Gate synthesiser module - 4HP wide
Notes: The LxD, Low Strike Duo, is a dual-response, two channel, direct-coupled, Low Pass Gate, which utilizes vactrols in order to provide simultaneous control over the Amplitude and Frequency Spectrum of an Input Signal.

It is, in essence, a VCFA (Voltage Controlled Filter Amplifier). Unlike the Optomix, the LxD offers two different filter responses. CH. 1 offers a 12db/ Octave response that is mildly-resonant, while CH. 2 offers a 6bd/ Octave that is non-resonant.

The Output of CH. 1 is normalled to the input of CH. 2. This normalization puts the two channels in series, which is similar to the VCF into VCA arrangement made popular by many monosynths of the 1970's.
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 9 in stock $102.52
Cat: 677564 Rel: 24 Aug 18
Joystick/vector mixer for CV or Audio - 14HP
Notes: The most complex modulator is you. The Planar 2 puts macro control over six outputs - including a quad panning mixer - into your hands with a buttery smooth joystick. Record up to 30 seconds of your own movements, stretch it or mangle it with scan mode, use a trigger for playback, or just loop it - synced or not. Add yourself to your patch.

With its smoothly responsive precision joystick, Planar 2 facilitates hands-on vector control of two entirely independent sets of outputs (quadrants A-D, and axis X/Y), plus the ability to capture and playback your gestures. Recording your joystick movements enables the creation of organic and complex envelopes, wild and wobbly LFOs, or extended sonic evolutions. It mixes, morphs, routes and pans audio inputs; triggers gates; outputs control voltages and is itself, CV-controllable. Planar 2 puts the 'joy' back in 'joystick,' and the 'fun' back in 'function generator.' Its multitasking and tactile interface makes it a flexible and unique control device, no matter what your musical genre.
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 3 in stock $310.17
Cat: 596644 Rel: 18 Dec 15
Physical modelling synthesis Eurorack synth module - 14HP wide
Notes: Rings brings physical modelling synthesis to your Eurorack system, from a more modular angle than Braids' models or Elements. Instead of trying to be a complete instrument, Rings focuses on the key ingredient, the resonator, ready to be excited by envelope clicks, trigger pulses, granular noise or any other audio source produced by the rest of your system.

Three families of vibrating structures are simulated by the module, with CV control over their parameters:

- Strings, membranes and tubes as modelled by Elements' resonator section (modal synthesis).
- Strings coupled together and vibrating in sympathy, with controllable intervals between them.
- Strings with a variable amount of inharmonicity.

Rings can be configured so that each new note is played on its own virtual string, while the previously played note(s) still decay(s). This unique take on polyphony allows the module to play strummed chords.

*For audio demo, please visit - http://mutable-instruments.net/modules/rings
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 More than 10 in stock $285.18
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quote 596644
Cat: 616166 Rel: 09 Jun 16
Quad VCA & mixer synth module - 12HP wide
Notes: VCAs are the cornerstones of modular patches: shaping the amplitude or timbre of a tone with an envelope, animating a mixture of several oscillators, controlling the amount of filter modulation with a random source or a touch controller, applying an envelope on the linear FM signal hitting an oscillator... are all possible uses of these super versatile building blocks. That's why you never have enough of them.

What about four more?
Veils provides four VCAs with an adjustable response curve. Veils' outputs are daisy-chained, allowing adjacent groups of 2, 3, or all 4 channels, to be mixed together.
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 More than 10 in stock $149.87
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quote 616166
Cat: 718736 Rel: 27 Feb 19
Multi-mode filter with four filter types - 18HP
Notes: The Quad Peak Animation System combines the auditory enveloping of stereo spaced peaks with the animation of two or more peaks in a single channel dancing around each other or engaging in primitive vocalizations. QPAS is Quad Core, containing four identical state variable filter cores with a control system powerful enough to guide them in stereo multi-peak operation, but simple enough to encourage system integration rather than domination.

- Quad Core Stereo Analogue
- Multi-Peak with clean resonance
- Fast response encourages deep FM
- Radiate spaces stereo image and animates associated channel
- High Q settings are under damped, excitable and ring by gate or trigger
- 2 modulation inputs aid patch exploration
- Stereo VCA, pre-filter with gain
- Mono to Stereo, Stereo to Mono, Mono to Mono and Stereo to Stereo operations
- Smile Pass filter response unique to QPAS
- Low Pass, Band Pass, High Pass and Smile Pass outputs simultaneously available
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 5 in stock $351.79
Cat: 569573 Rel: 23 Sep 15
Liquid filter Eurorack synth module
Notes: Ripples delivers a classic, big-sounding analog four-pole filter in a small 8-HP package, continuing Mutable Instruments' lineage of warm and tasty filters started by the Shruthi SMR4 mkII and 4-Pole Mission.

3 filter modes are available: 2-pole band-pass, 2-pole low-pass, and 4-pole low-pass.

Self-oscillation is available for all modes and produces a clean sine-wave on the LP4 output. Unlike many classic 4-pole designs, this filter does not suffer from "loudness drop" when resonance is increased. The resonance loudness compensation circuit brings a slight tone coloration reminiscent of the Roland SH/Jupiter filters, with a very round and "liquid" resonance.

The 4-pole low-pass output is additionally sent to a VCA. This makes Ripples a good "final stage" module for an inexpensive/space-constrained subtractive synthesis synth voice.

*For audio samples, please visit - http://mutable-instruments.net/modules/ripples
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 4 in stock $154.03
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quote 569573
Cat: 686027 Rel: 04 May 18
4 channel mixer module
Notes: Mix is a 4 channel mixer that is great for audio or control voltage signals. Up to four inputs can be combined to a single output each with its own level control.
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 1 in stock $91.58
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quote 686027
Cat: 649102 Rel: 11 May 17
Stereo reverb Eurorack module
Notes: Verb is a lush stereo reverb with a full feature set and superior audio quality. A wide range of reverb times take your sound from small room to never-ending concert hall.

CV over mix allows dynamic movement between the dry and reverberated sound, and the dampening control lets you dial in the perfect timbre for the wet signal. Whether you need a traditional reverb for an FX send or an esoteric sound design tool, Verb can take you there. Get lost in space with Verb.
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 3 in stock $104.07
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quote 649102
Cat: 584260 Rel: 15 Apr 16
Dual channel attenuverter synthesiser module - 4HP wide
Notes: 'O/A/x2' is a dual channel attenuverter with each channel also including a bipolar voltage offset and LED monitoring. The module is primarily intended for fine grain flexible 'editing' of control signals (i.e changing the phase, level and DC offset of an LFO signal) but also has uses with audio signals such as attenuation, inversion and mixing.

Technical Specifications:

Supply: +/-12V (Reverse voltage protection)
Current Draw: ~50ma
Size: 4 HP
Depth: 32mm (including power header)
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 5 in stock $80.13
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quote 584260
Cat: 621355 Rel: 28 Nov 16
Breakout expander for the Batumi quadruple LFO module
Notes: Poti is a simple but very useful breakout expander for the Batumi quadruple LFO module by Xaoc Devices. Its panel provides an immediate access to the Batumi functions originally selected by the cluster of jumpers on the back of the module: Reset/Sync mode option and selection of the assignable waveform.
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 4 in stock $40.07
Cat: 671740 Rel: 04 Dec 17
Dual voltage control amplifier & overdrive - 6HP
Notes: Tallin is a dual voltage controlled amplifier (VCA) with overdrive, offering some unusual control features and a range of attractive tonal characteristics. Each of the two identical channels offers two simultaneously available inputs for voltage control over signal attenuation or gain, with linear and exponential response to CV. Volume control knobs offer manual gain settings ranging from fully closed (-80dB) up to +18dB. A colour LED indicator displays output signal levels. A soft-clip circuit avoids harsh clipping distortion, while a switchable overdrive circuit offers two carefully crafted distortion responses, simulating the sound of classic tube amplifiers.

Since both CV inputs are simultaneously active, they can be jointly exploited within patches featuring more complex volume control that otherwise would require using two traditional VCAs in series. As the signal path is DC-coupled, Tallin can also be used for handling the control voltages.
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 4 in stock $139.46
Cat: 561577 Rel: 15 Sep 15
Wavetable module with 21st century advanced wavetable engine with classic Waldorf wavetables included - 32HP
Notes: nw1 is our debut product for the popular Eurorack format. It includes an advanced wavetable engine with independent control of spectral envelope and noisiness - just like Nave.

Wavetable scanning is cyclic with optional modulation of travel speed, position, spectrum, and more besides. By providing the worshipped Waldorf wavetable set from the classic Microwave and Wave synthesizers, nw1 will enrich your Eurorack modular system as a potently powerful sound source. The nw1 sound engine also allows for onboard creation of user wavetables via time domain multiple foldover analysis. All you need to do is connect any sound source to the nw1 to transfer audio into a wavetable. Or use the integrated speech synthesizer to translate typed text into wavetables.

Wavetable synthesis is an extremely powerful sound source suited to producing all kinds of vivid metallic hues and digital clangorous tones. It can create organic, bell-like timbres, as well as spectacular-sounding scans through various waveforms with truly ear-opening results. It was almost impossible to create these kinds of sharp-edged, digital sounds back before the invention of wavetable synthesis in the late-Seventies.

Starting with the wavetable synthesizers of those days, a whole new sound palette left its imprint on so many hit records. Today, with Waldorf's neatly-sized nw1 Wavetable Module, this sound is readily available for the popular Eurorack standard - sounding just as pure, sharp, and massively destructive as it did back in the golden days of digital!
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 5 in stock $172.77
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