シンセ・モジュール

Notes: Easily connect your modular system to the rest of your setup with Out, a compact 2HP stereo line output and headphone module. Despite its small size, it includes everything you need for clear, convenient listening.

The top section features stereo modular-level inputs with LED indicators for quick level monitoring. From there, the signal is routed to both a stereo line output and a dedicated headphone jack, each with independent volume control. Whether you're sending your modular through external effects, recording into an interface, or just monitoring with headphones, Out keeps things simple and efficient.

Notes: Capture the iconic sound of tape sliding to a halt with Tape Stop, a clock syncable tape stop module that puts this classic effect at your fingertips. Originally an accidental artifact of analog tape, this effect has become a beloved tool in music genres from hip-hop to IDM. Now, it's fully controllable in your modular system.

Adjust the Lag to set the stop length, then tap Trig to activate. Hit it again to resume your audio seamlessly. With clock sync, your stops and starts stay perfectly in time, and a toggle lets you switch between momentary and latching Trig modes. Add a touch of tape magic to your modular system with Tape Stop!

Notes: Capture the iconic sound of tape sliding to a halt with Tape Stop, a clock syncable tape stop module that puts this classic effect at your fingertips. Originally an accidental artifact of analog tape, this effect has become a beloved tool in music genres from hip-hop to IDM. Now, it's fully controllable in your modular system.

Adjust the Lag to set the stop length, then tap Trig to activate. Hit it again to resume your audio seamlessly. With clock sync, your stops and starts stay perfectly in time, and a toggle lets you switch between momentary and latching Trig modes. Add a touch of tape magic to your modular system with Tape Stop!

Notes: The MetaModule Audio Expander (MetaAIO) adds an additional 6 CV/Audio inputs and 8 CV/Audio outputs to your MetaModule patches, via a ribbon cable connected to the main MetaModule. The MetaAIO provides the same high-quality as the MetaModule's Audio/CV jacks (24-bit, 48kHz default, up to 96kHz).

Notes: ***B-STOCK: Product with some signs of usage but in perfect working order***


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.

Notes: ADDAC219IN was designed to replace bulky 1/4 inch jacks when plugging external stereo gear into the modular realm.

Using a 3.5mm TRS stereo jack input, the module splits the TRS stereo signal into 2 mono outputs (Left + Right) while also converting the line input to synth level.

There are 2 independent sections allowing for two stereo sources to be connected.

Tech Specs: 3HP, 4 cm deep, 20mA +12V, 20mA -12V

Notes: ADDAC219OUT was designed to replace bulky 1/4-inch cables when plugging external stereo gear to the modular realm.

It merges 2 TS mono signals (Left + Right) into a TRS stereo output while also converts the synth inputs to line level.

There are 3 independent sections allowing for three stereo sources to be connected.

Tech Specs: 3HP, 1.5 cm deep, Passive module

Notes: Based on the ADDAC501 Complex Random module, the 511 expands the concept to become an even more powerful random/stochastic voltage generator. Four channels, all capable of being used for envelopes, modulation sources, sequencers and much more.

Supplier's Notes:
This module greatly expands on the principles of the ADDAC501 Complex Random from 2013.

This is a fully fledged 4 channel voltage generator capable of all things random, with quantization, probability, distribution, interpolation, time control, clock, states and a 32 step sequencer.

The module operation relies on its screen for all parameter editing, each button accesses one single page where parameters can be changed allowing a fast and fluid workflow across all settings.

Long presses on all buttons have a secondary function allowing fast Channel selection plus Mute and Hold functions.

The combination of having 2 Encoders with Push buttons allow swift navigation and editing across all pages and their settings.

Tech Specs:
20HP
4.5cm deep
200mA +12V
100mA -12V

Notes: A typically well thought-out approach to matrix mixing from ADDAC, the 814 is a stereo, expandable 6x6 design with separate control and in/out modules. Suitable for line/synth level audio or CV.

Supplier's Notes:
Introducing ADDAC's take on matrix mixers, a 6x6 stereo matrix easily expandable to larger configurations.

Matrix mixers may need some time to get used to, but they are very much self-explanatory, each knob controls the volume of a matrix point routing the respective input to the desired output. The flexibility of a matrix mixer is far superior to a standard mixer, the possibility to route any input to any single or multiple outputs allow for very complex chains, combining parallel and series processing while easily reconfigurable without any extra patching.

All Inputs Left channels are normalled to the Right Inputs.

Blank areas on the left and bottom edges of the panel allow for the user to write all the inputs and outputs sources that each channel is connected to.

Different coloured knobs for faster visual recalling: Black for A,C,E Outputs Dark Red for B,D,F Outputs Cream knobs for potential feedback diagonal: 1A, 2B, 3C, 4D, 5E, 6F.

DC coupled circuitry, can be used to mix both audio or cv signals.

Jumpers on the back of both modules allow the user to set each channel independently to Line or Synth Level, making it easier to integrate with external sources, sound processors or guitar pedals.

Internal connections

The control and input modules are connected via a large 34 wire ribbon cable, only the control module needs to be connected to the Busboard.
Extra IDC sockets are used for connecting larger configurations like 12x12 or 18x18.
Other configurations are also possible: 6x12, 12x6, 12x12, etc...
Up to 12x12 all ribbon cables are provided, for larger matrixes custom ones will be necessary, contact us directly if planning to go BIG.

Potentiometers

Although ADDAC System are using Thonk's Tall Trimmer Topper for Knobs all potentiometers used have metal shaft and are not plastic trimmer potentiometers.

Tech Specs: 25HP + 8HP (33HP total, 4.5cm deep, 140mA +12V, 140mA -12V

Notes: Bartender is the centerpiece of the mixer system. Four stereo channels, with two stereo aux send and two stereo returns. Each channel can be used in a mono mode where both channels are mixed. If you want to do eight channels of mono, you can put the channels in stereo mode (I know it feels backwards) and then use the pan control to control the crossfade between each channel, and then take the mono output. There is a built in cueing system so you can monitor channels in your headphones and control the blend with the main output. You can expand a Bartender with both a Barback and/or another Bartender. When connecting two Bartenders, the main level control on the 'expander' Bartender acts as a group control.

Notes: MEGA-TANG Expander MT-EX1 is a new expander module for the MEGA-TANG mixer.

The MT-EX1 adds 4 additional inputs. It also adds a mono line level input with level and send controls, two extra fixed inputs each with send controls and a fixed stereo input. Note the MEGA-TANG only supports a single expander at any time.

Technical Specs

Size: 4HP
Depth: 32mm (approx)

Notes: MEGA-TANG Expander MT-EX2 is a new expander module for the MEGA-TANG mixer.

The MT-EX2 adds an extra effects send/return for all channels. It also adds an extra send and return to your MEGA-TANG. Note the MEGA-TANG only supports a single expander at any time.

Technical Specs

Size: 4HP
Depth: 32mm (approx)

Notes: THE SBG-PRO supports mono, stereo, balanced, and unbalanced input and output via 6.35mm jacks with level matching controls with clipping indication. The module features both direct and voltagecontrolled equal power crossfading between wet and dry sources.

Additionally, an expression input, along with the included 'floating ring' cable and conditioned output, ensures safe, voltage-limited CV control of external devices from your modular system.

The module extends its sibling, the original S.B.G, by adding full size stereo balanced jack connections and voltage control focusing more on connectivity with not just pedals but also pro audio equipment including rack effects, 500 Series modules and mixing consoles.

Notes: SWEnigiser Proto VCF/A

Enigiser multimode filter and VCA in 12hp. Circuit based on originalEnigiser prototype kindly loaned by Anthony Linell of Northern Electronics.

VCF
Unique configuration with 3 x 4 filter modes
2x audio input with drive
2x cutoff CV attenuverter inputs
1x cutoff CV input, tunable to 1v/oct

VCF output normalized to VCA input.

VCA
1x audio input with gritty drive, normalized from VCF output
2x CV input. CV1 knob adds offset for drone etc.
CLIP switch for old/new revision Enigiser diode setting adjusting drive character.
+12V 22mA
-12V 22mA
Skiff friendly
Includes power cable, 4 screws+ plastic washers

Available in sand blasted silver and black panel versions.

Notes: SWEnigiser Proto VCF/A

Enigiser multimode filter and VCA in 12hp. Circuit based on originalEnigiser prototype kindly loaned by Anthony Linell of Northern Electronics.

VCF
Unique configuration with 3 x 4 filter modes
2x audio input with drive
2x cutoff CV attenuverter inputs
1x cutoff CV input, tunable to 1v/oct

VCF output normalized to VCA input.

VCA
1x audio input with gritty drive, normalized from VCF output
2x CV input. CV1 knob adds offset for drone etc.
CLIP switch for old/new revision Enigiser diode setting adjusting drive character.
+12V 22mA
-12V 22mA
Skiff friendly
Includes power cable, 4 screws+ plastic washers

Available in sand blasted silver and black panel versions.

Notes: ***B-STOCK: Item refurbished, repaired and in perfect working order.***


Dimensions is a true stereo chorus effect for the Eurorack modular system featuring two algorithms. The first is a direct port of our Fluid chorus plug-in, and the second is taken from the unit's namesake. With automatic routing based upon what you plug in the I/O, Dimensions can do mono->mono, mono->stereo, and true stereo chorus duties.

Dimensions' Mode A operation is a ludicrously thick chorus. Most chorus effects have either a single delay line or a pair. Dimensions has six of them, each with its own modulation scheme. The Mode B operation changes the routing to match the vintage rack unit, but keeps the controls available. This results in a subtly different, but equally thick and appealing, effect.

Notes: Voltage-Controlled Voltage Processor

A*B+C is the ultimate utility for audio and control voltage. It performs multiplication, addition, and attenuation, providing a simple way to create complex signal interactions and timbres.

It is formed by two channels, each of which takes two input signals (A and B), multiplies them (A × B), and then adds a third signal (C) to the result.It is formed by two channels, each of which takes two input signals (A and B), multiplies them (A × B), and then adds a third signal (C) to the result.

By combining different blocks, many functions can be achieved:

Audio Processing:

Four-quadrant amplitude modulation (ring modulation)
Linear VCA
Signal mixer
2x gain amplifier
Phase inverter
Attenuator

CV Processing:

Voltage-controlled attenuator
CV mixer
Attenuator
Inverter
VCA
DC generator

Features

DC Coupled
Signal LED Indicators
B and C INs normalled to 5

Specs

Current Draw: +12V: 50mA, -12V: 50mA +5v : 0mA
Width: 6HP
Depth: Assembled version 25 mm
Depth: DIY version 35 mm
Designed, kits prepared and assembled in Barcelona.

Notes: Quad Attenuator/Inverter, Splitter, and Offset Generator

Scale your audio or CV sources and route them to various destinations with this versatile utility. It consists of four identical unity gain amplifiers. Each amplifier can multiply an incoming signal by values ranging from 0 to 1 (for attenuation) or from 0 to -1 (for inverting attenuation). The input of each channel is normalled to the input of the next channel, allowing for easy signal routing from one input to the subsequent ones.

The first channel is normalled to 10V, enabling the module to function as an offset generator when no input is connected.

Features

Inversion switch per channel.
Precise zero at the left side of the pots.
Four level LEDs indicate output level and polarity.
Cascaded input topology

Specs

Current needs: +12V: 60mA, -12: 50mA, 5v:0
Width: 4 HP
Depth: Assembled version 25 mm
Depth: DIY version 35 mm
Designed, kits prepared and modules assembled in Barcelona.

Notes: Combine up to four audio and or CV sources into one output, with independent manual level control.

It can be used as a four-channel mixer or as two separate two-channel mixers, depending on the connection.

If a cable is connected to the Master output but not to the 1+2 output, all channels will be summed at the Master output. If both the Master and 1+2 outputs are connected, the Master will output the mix of channels 3 and 4, while the 1+2 output will provide the mix of channels 1 and 2.

Each pair of channels has an LED indicator that shows the presence of a signal.

Notes: Clock Multiple, Conditioner, and Divider in a compact 2HP format

Distribute your clocks throughout your system using minimal rack space.

The first three outputs maintain the same frequency as the input, while outputs 4 to 7 provide time divisions of 1/2, 1/4, 1/8, and 1/16.

The active topology allows you to patch clocks on the fly, avoiding the tempo interruptions that can occur with passive multiples.

To reduce the footprint, the input is a TRS jack, with the clock signal on the tip and the reset on the ring. For standard clock only operation, use a regular mono cable, or use the provided splitter to access the reset function.

Notes: Voltage-controlled lag processor and slope detector

Transforms stepped notes into smooth acid slides with independent speeds for both upper and lower notes.

The onboard slope detector generates gates while the output is rising or falling, allowing events to be activated when moving to upper or lower voltages.

Additionally, it can convert a gate signal into an Attack-Sustain-Release (ASR) envelope.

The shape control feature helps balance speed versus input range, enabling quicker speed while sliding to further notes allowing for time compensated portamento.

Features

Perfect pitch tracking (error < 1 mV)
Independent rise and fall controls
Assignable CV input for rise and fall times
Three selectable speed ranges
Fader-based interface allows for one-handed adjustment of rise and fall times

Specs

Current needs: +12V: 20mA, -12: 15mA, 5v:0 on additional rails
Width: 4 HP
Depth: 25 mm (including power connector)
Designed, kits prepared and modules assembled in Barcelona

Notes: Alpha Duo is a stereo precision VCA with ring modulation, overdrive and distortion.

Alpha Duo's VCAs have three modes:

1) Two quadrant, for classic VCA behaviour
2) Four quadrant, where the VCA responds to both positive and negative Gain CVs. This creates a classic ring modulator.
3) In four quadrant separate (4S) mode, each of the two VCA channels is controlled by separate gain CVs, turning Alpha Duo into two independent VCA/ring modulators.

Alpha Duo also features three drive modes.

1) In Drive Mode zero the overdrive circuit is not active, giving a clean signal.
2) Drive Mode One is a tube style soft overdrive. Like a tube, the positive and negative parts of the waveform are distorted differently, producing a pleasing, warm fuzz.
3) Drive Mode Two is a harder clip - more like a transistor amplifier - for a harder edged distortion.

Alpha Duo's signal path is DC coupled, so it's great for processing CVs as well as audio.

Specifications:
Width: 10HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 200mA
-12v: 50mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
GainCV [Zero attenuation]: +/-5v nominal
Pan CV [Zero attenuation]: +/-5v nominal

Outputs:
Dual/Stereo: +/-5v nominal, +/-11v max

Notes: At its heart, Alpha Pro is four identical VCAs, each with overdrive and stereo outputs. However, it's also possible to link any of the VCAs together to form a voltage controlled mixer. This flexibility allows Alpha Pro to replace a bank of VCAs, sub-mixers and even your output mixer.

Each VCA has two Signal inputs and a summing mixer with individual attenuators.

There are two mix buses, allowing each VCA to act stand-alone or as part of the mix. So you can configure two separate sub-mixes, with any of the VCAs contributing to the mix, or use all channels to make an 8 input, stereo output main mix.

The VCA gain is controlled by the Initial Gain knob, and two Gain CVs - again mixed together, each with an attenuator. Having two Gain CV inputs allows for more complex modulation possibilities without needing another CV sub-mixer.

Gain response can be set to exponential or linear.

The XING switch enables zero crossing detection to prevent clicks on very fast CV inputs.

Two drive modes are available, a soft clip and a harder fuzz, with the DRIVE control increasing the gain into the overdrive circuit to increase the effect.

The VCA output is stereo, with manual and CV control of pan - again, with an attenuator.

Alpha Pro is available now as a 'founders edition' which includes the Alpha Switch as standard.

Specifications:
Width: 38HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable

Power Requirements:
+12v: 250mA
-12v: 100mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
Gain CV (Zero attenuation): 0-5v nominal
Pan CV (Zero attenuation): +/-5v nominal

Outputs:
Stereo: +/-5v nominal, +/-10v max
With Drive Modes 1&2 outputs are normalised to around +/-5v max

Notes: Foxtrot is a quad, multimode virtual analogue filter with three different classic filter types.

Each of the four filter channels can be:

1) A ladder filter, based on the classic MOOG designs from the '60 and '70s
2) A Sallen-and-Key filter based on the Korg 35 module used in the MS-20
3) A State Variable filter as used in the Oberheim SEM

Each filter type produces Low Pass, Band Pass and High Pass responses which can be morphed between using the front panel control or CV.

In addition, any or all of the filter channels can be linked together internally producing a parallel filter bank controlled by a single cut-off control or CV. Check out some of the examples for how amazing this sounds.

The AUX CV input can be switched to allow CV control of the filter response, resonance or pan of each filter channel's dual outputs.

Finally, each filter can be overdriven to accentuate the unique sound of each filter type.

Specifications:
Width: 38HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 250mA
-12v: 100mA
+5v: 0mA

Inputs:
Signal (Zero attenuation): +/-5v nominal, +/-12v max
Cut-off CV (Zero attenuation): 0-5v nominal
AUX CV (Zero attenuation): +/-5v nominal

Outputs:
Dual Outputs: +/-5v nominal, +/-10v max

Notes: Oscar DSF is a complex, stereo Voltage Controlled Oscillator, based on the mathematics of Discrete Summation Formulae.

The Discrete Summation Formula used in Oscar DSF produces sounds rich in harmonics (or 'partials') in a similar way to FM.

The mathematics of DSFs is more complex than FM, but the way that you, the user, get the sounds you want is usually simpler. The basic sound is controlled by just two, intuitive knobs (with CVs, of course).

Oscar DSF can sound like a traditional oscillator, and it can make the usual clangs and tings associated with FM oscillators. It can handle fat bass sounds, or evolving ambient drones.

Oscar DSF has two complete DSF based, complex oscillators, controlled by the same basic pitch CV, but with a pitch offset control which can detune one oscillator up to i1 octave.

The output of the each oscillator passes through another complex FM stage, which acts like a wave folder. Technically, it's actually an FM operator with the carrier frequency set to zero. It sounds great, whatever you call it.

The final piece of the signal chain is a simple VCA, allowing Oscar DSF to be used as a stand alone synth voice with the addition of an envelope generator, or some other source of modulation.

Specifications:

Width: 10HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 200mA
-12v: 50mA
+5v: 0mA

Inputs:

VPO (Zero attenuation): 1 volt per octave
PAR CV[Zero attenuation]: +/-5v nominal
FOLD CV [Zero attenuation]: +/-5v nominal
PAN CV [Zero attenuation]: +/-5v nominal

Outputs:
Dual/Stereo: +/-5v nominal, +/-11v max

Notes: What does this do?

This is an analogue filter with a separate 3 channel mono mixer, and VCA combo. There is also an internal envelope generator with Decay. All this product needs is a VCO and a trigger signal to complete a mini voice.

The outputs on the filter are meant to be manually patched into one of the VCA audio inputs on the module to complete the mini voice. You can mix and match to create custom filter types.

The Feedback on the product 'Rez', is what makes this sound like an MS20 filter. There are diodes, used as a limiter, and also to wave shape when in self oscillation mode.

Features:

-2 audio inputs with 2 level control knobs.

-Bi-polar FM for the filter.

-Mod input with level knob for the filter.

-FCV Filter CV direct input for the filter.

All CV inputs for the Filter are 1V per octave, Exponential.

-REZ CV

-VOLT CUT output. +5v/5v output. Used to remote control another filter, with the master 'Cut' knob.

-Internal Envelope Generator, with Level Sends to VCA and Filter.

-Separate VCA circuit, with 3 channel mono mixer input.

-1 CV input for the VCA. 'VCV'.

-1 VCA output.

The filter will self oscillate into a sine wave and does track 1v per octave.

Width: 16HP

Current: +65mA,-65mA

PCB Stack: 1 Level, Skiff compatible.

Notes: Tiptop's reissues of iconic Buchla modules continue with the 285 frequency shifter. Edgy, twangy harmonic modulation with ring mod options and stereo operation via sum and difference outputs.

Supplier's Notes:
The 285t combines two sets of functions: the top section features a frequency shifter, while the lower section includes both balanced modulation and classic ring modulation, all with voltage control. The frequency shifter can shift incoming audio using either its internal oscillator or external audio. Both SUM and Difference outputs are available simultaneously for analogue stereo widening effects and more.

As Tiptop Audio continues its aural odyssey of preserving and transforming the hallmark engineering prowess of Don Buchla's namesake synthesizer modules, the 285t brings a constellation of blistering sonic-contouring tools to your Eurorack array. Like its predecessor, the Tiptop Audio Buchla 285t is a menagerie of modulation madness, offering variable degrees of ring, frequency, and amplitude styles of modulation. Plus, its dyad of modulation sub-modules operates independently, with dedicated audio and CV I/O for each, functionally giving you the sum of performance possibilities you'd get with two modules, all in one instrument. Suffice it to say: Sweetwater's synthesists commend Tiptop Audio on capturing the electric magic of Don Buchla's imaginative engineering while transposing it for the world of Eurorack to experience. For a constellation of timbral sculpting and summitting heretofore unknown peaks of daring synthesis exploration, the Tiptop Audio Buchla 285t Frequency Shifter module is your key. Discover what awaits at the fringes of Eurorack possibility!

Note: This module is not compatible with Buchla system voltages. CV signals require a distinct connectivity configurations. Please contact your Sweetwater Sales Engineer with any questions or concerns regarding compatibility or use in your Eurorack case.

Type: Frequency Shifter
Depth: 1.77" (45mm)
HP Size: 18HP
Power Usage: +12V/70mA, -12V/40mA
Power Supply: Requires Eurorack Case and Power Supply
Manufacturer Part Number: 285t

Notes: ***B-STOCK: Box opened, product in perfect working order***


Tiptop's reissues of iconic Buchla modules continue with the 285 frequency shifter. Edgy, twangy harmonic modulation with ring mod options and stereo operation via sum and difference outputs.

Supplier's Notes:
The 285t combines two sets of functions: the top section features a frequency shifter, while the lower section includes both balanced modulation and classic ring modulation, all with voltage control. The frequency shifter can shift incoming audio using either its internal oscillator or external audio. Both SUM and Difference outputs are available simultaneously for analogue stereo widening effects and more.

As Tiptop Audio continues its aural odyssey of preserving and transforming the hallmark engineering prowess of Don Buchla's namesake synthesizer modules, the 285t brings a constellation of blistering sonic-contouring tools to your Eurorack array. Like its predecessor, the Tiptop Audio Buchla 285t is a menagerie of modulation madness, offering variable degrees of ring, frequency, and amplitude styles of modulation. Plus, its dyad of modulation sub-modules operates independently, with dedicated audio and CV I/O for each, functionally giving you the sum of performance possibilities you'd get with two modules, all in one instrument. Suffice it to say: Sweetwater's synthesists commend Tiptop Audio on capturing the electric magic of Don Buchla's imaginative engineering while transposing it for the world of Eurorack to experience. For a constellation of timbral sculpting and summitting heretofore unknown peaks of daring synthesis exploration, the Tiptop Audio Buchla 285t Frequency Shifter module is your key. Discover what awaits at the fringes of Eurorack possibility!

Note: This module is not compatible with Buchla system voltages. CV signals require a distinct connectivity configurations. Please contact your Sweetwater Sales Engineer with any questions or concerns regarding compatibility or use in your Eurorack case.

Type: Frequency Shifter
Depth: 1.77" (45mm)
HP Size: 18HP
Power Usage: +12V/70mA, -12V/40mA
Power Supply: Requires Eurorack Case and Power Supply
Manufacturer Part Number: 285t

Notes: Another iconic Buchla module gets the Eurorack reissue treatment courtesy of TipTop. The 242t is the brand's unique voltage-controlled clock and trigger module, generating pulses based on a 4x12 matrix.

Supplier's Notes:
The Buchla and Tiptop Audio 242t Programmable Pulser is a reissue of the time-event-based generator from the 1970s 200 series. At its center is the Pulser, a voltage-controlled clock oscillator with a wide frequency range, extending up to audio frequencies, numerous outputs, and start/stop controls. The Pulser drives a programmable matrix with three rows of up to 12 stages: (A), (B), and (C). Stages are activated using the X/Y coordinate controls, and the total number of stages can be set using the (n) row. Clock and Reset inputs allow the 242t to sync with other devices, while the Reset input can also be used to control the number of stages with external pulses.

Notes: Tiptop bring the iconic low-pass gate to their range of Buchla reissues. The 292t offers four channels which can be mixed or treated individually, with adjustable modes for low-pass filtering, VCA or the classic low-pass gate combo.

Supplier's Notes:
The 292t is a reissue of Don Buchla's low-pass gate from the 1970s, adapted for the Eurorack modular format. The module consists of four independent low-pass gates (LPGs) and retains the natural, percussive sounds of the original, all of which can be manipulated in real time using control voltages. The 292t allows you to mix up to four sounds from their individual outputs or through a summed output, functioning as a mixdown. Each channel can operate in one of three modes: a low-pass filter with a variable cutoff, a VCA with controllable gain, or a combination of both, producing Buchla's classic low-pass gate effect.

Notes: Part of TipTop's exceptional series of Eurorack-format Buchla modules, the 264t provides four sample-and-hold circuits, plus a logic circuit designed to control polyphonic patches. Deceptively simple but surprisingly creative, like most Buchla modules.

Supplier's Notes:
Four independent sample-and-hold circuits, plus a specialized logic circuit for expediently implementing polyphonic patches.

Sample-and-hold's are essentially one-cell analog memories. They are useful for "remembering" the instantaneous value of a control voltage (a detected envelope, for example), for generating equally spaced steps from a constant slope input (as from a 281t envelope generator), and for converting any continuously changing voltage (a random voltage, for instance) into a series of discrete values.

The 264's sample-and-hold circuits have two operating modes: sample and track. In the sample mode, the value of the input is sampled and applied to the output whenever a pulse is received. The output remains at this value until the next pulse arrives. The track mode diers in that an input is applied to the output for the duration of the pulse. The output tracks the input until the end of the pulse and remains at a constant value until the next pulse.

To use the 264t as four independent channels set the separate/common switch to separate. A single CV can be set to all four channels by setting the operate/common to common and plug CV in the the back jack on the with right side.

The Model 264t includes a polyphonic adaptor, which performs the logic necessary to implement four-voice polyphony. Facilities are incorporated for fine tuning and f.m. modulating the oscillators; light emitters display the adaptor's operation.

Specifications:

Size: 18 HP - Depth: 45mm
Power: +12V 60mA / -12V 30mA

Notes: Discover the new dimension of your sound design with the ultra-compact 2HP wide ADSR Envelope Generator in Eurorack format. This precise tool is specially designed for synth enthusiasts who don't want to miss out on professional dynamic control in their Eurorack system. Despite its small size, this ADSR generator offers a plethora of features that will take your soundscapes to the next level.

Compact design

With a width of only 2HP, this envelope generator fits seamlessly into any Eurorack setup without wasting valuable space.

Customise your sounds with full ADSR control - Attack, Decay, Sustain and Release can be intuitively adjusted to bring your sounds to life

There is also a built-in LED display that gives you real-time visual feedback on the current phase of the envelope. This way, you always have an overview of the dynamic progression of your sounds.

With the ability to choose between three timebase settings (S, M, and L), you can flexibly adjust the envelope time base to suit your musical needs. From fast, crisp pulses to long-drawn-out, atmospheric evolutions, expand your expressive possibilities.

Manual Trigger

A special highlight is the manual trigger button. This allows you to trigger the envelope independently of external signal sources, ideal for spontaneous performances or experimenting with new sound ideas.

Dimensions
2 HP
42 mm deep

Current Draw
15 mA +12V
5 mA -12V
0 mA 5V

Notes: Expand your modular synth world with the 2HP Eurorack-compatible Dual Buffered Multiple. This versatile and space-saving module is a must-have for those who want to distribute their signals with precision and flexibility. Whether you want to synchronize multiple oscillators, control filters in parallel signal paths, or create complex modulation setups, our Dual Buffered Multiple gives you the reliability and versatility you need.

Compact design

With its slim 2HP width, this module fits seamlessly into any Eurorack system without taking up valuable space.

Normalized Second Input

The input of the second channel is normalized, which means that a signal is automatically distributed to both channels if only the first input is used. This simplifies simultaneous signal distribution and increases creative freedom without the need to use multiple patch cords.

Dual operation

Equipped with two channels, our Buffered Multiple offers the freedom to distribute signals either as 2x 1->3 or as 1x 1->6 for maximum flexibility. This allows for a wide range of patching options and maximizes the efficiency of your system.

Buffered Outputs

Each output is buffered, which means your signal is amplified without any loss of quality or voltage drop. This is especially important if you want to send precise control signals (such as pitch CV) to multiple targets.

Versatile applications

Whether you want to build complex modulation routings, control multiple synth voices at the same time, or simply distribute a signal across multiple effects modules, this module gives you the flexibility you need.

Content:

Module
Bus cable 16-pin > 10-pin, 30cm
2x Screw M2.5x9 Phillips
2x Screw M3x9 Phillips

Notes: The Slimline Passive Fader Eurorack module is the perfect addition to your modular system. With a width of only 2HP, it offers a passive attenuation feature that allows you to precisely control and adjust the audio signal. Whether you're looking for subtle nuances or strong interventions, this module gives you the flexibility you need. Thanks to its slim design, it easily fits into any Eurorack setup and ensures efficient use of available space. Get the Slimline Passive Fader Module now and take your sound experience to the next level.

Notes: Expand the connectivity options in your Eurorack system with the versatile 2HP Eurorack compatible Passive Multiple. This compact module is an indispensable helper when it comes to efficiently distributing signals within your modular setup. With its intelligent design and two normalized channels, it offers a flexible solution for a wide range of patch requirements.

Space-saving design

With its slim design of only 2HP, the Passive Multiple fits seamlessly into any Eurorack system without taking up much space.

Flexible Signal Distribution

Thanks to the two normalised channels, this module can be used either as a 2x 1->3 multiple for distributing a signal to up to three targets, or as a 1x 1->6 multiple to send a signal to up to six targets. This flexibility makes it a true all-rounder for your patch environment.

Optimized for gate and trigger

The module is specially designed for the distribution of gates and triggers. It allows you to route a signal unchanged to multiple outputs, which is ideal for complex signal paths.

Limited CV signal suitability

Although the passive multiple can also be used for CV signals, it is only suitable to a limited extent due to its passive design. For precise voltage distribution, especially with pitch CV, we recommend using a buffered multiple to avoid signal loss and inaccuracies.

Dimensions
2 HP
14 mm deep

Current Draw
Module does not draw current

Notes: Tap into the world of precise signal processing with the 2HP Eurorack-compatible Precision Rectifier. This compact but powerful module is a must-have for anyone who wants to modify their audio signals with the utmost precision. Not only does it provide rectified solid wave, but it also provides dedicated outputs for the positive half-wave as well as the inverted negative half-wave of the input signal. Perfect for experimental sound designers and creative synth users.

Compact format

At just 2HP, this Precision Rectifier offers a powerful feature extension for your Eurorack system without taking up a lot of space.

Versatile signal processing

Get access to rectified full wave to fully modify your input signal, ideal for dynamic effects and creative signal paths.

Dedicated Half-Wave Outputs

In addition to full-wave rectification, the module offers separate outputs for the positive half-wave and the inverted negative half-wave. This special feature allows you to play with the original character of the input signal and create unique sound textures.

Precise signal processing

The Precision Rectifier is designed for the highest level of accuracy, so you can count on clear and precise signal processing, no matter how complex your requirements are.

Notes: Expand the capabilities of your Eurorack system with the 2HP Eurorack compatible Single Buffered Multiple. This compact but powerful module is the perfect solution to multiply and distribute your signals without losing quality. It is specially designed for synth lovers who want to optimize their signal chain and shape their soundscapes with precision.

Ultra-compact design

With a width of only 2HP, this module fits seamlessly into any Eurorack setup, maximizing the space available for further creative expansion.

Seven outputs

Equipped with seven outputs, our Single Buffered Multiple allows simultaneous signal distribution to multiple modules. Perfect for complex patches where you want to send a signal to different destinations.

Buffered Outputs

The buffered outputs ensure that signal integrity is maintained even when distributed across multiple modules. Enjoy precise control and stability in your signal chain without sacrificing signal quality.

LED indicator for positive input signals

A special feature is the integrated LED, which lights up as soon as a positive input signal is detected. This visual feedback is not only convenient, but also makes it easier to troubleshoot complex patches and improve the user experience.

Optimal flexibility

Whether you want to route audio signals, control voltages or triggers, our Single Buffered Multiple offers the flexibility you need to meet your creative needs.

Notes: Dive into the world of subtle tone modulation with the revolutionary 2HP Eurorack compatible Slew Limiter. This compact but powerful module is the secret weapon in your synth setup to create smooth transitions between your sounds, giving you the opportunity to expand your musical expression in a unique way.

With its slim design of only 2HP, the Slew Limiter fits seamlessly into any Eurorack system without taking up valuable space.

Create smooth transitions between notes or modulate CV signals to create organic, vibrant effects such as portamento/glide, or complex modulated patches.

Adjustable rise and fall times give you complete control over the speed of signal changes, from instant jumps to smooth, slow transitions. Versatile uses: Whether for smoothing control voltages, creating legato effects for monophonic melodies or for creative sound design - this slew limiter is a true all-rounder.

Thanks to its clean layout and simple controls, you can make the settings you want instantly, making it ideal for live performances and studio sessions.

CV control via rise/fall

A unique feature is the ability to control rise and fall times via external CV signals, allowing you to dynamically react to your performance or patch.

Shape Control

The Shape slider allows you to fine-tune transitions over a wide area. Whether it's a slow exponential increase, linear transitions, or a subtle adjustment through the logarithmic characteristic, it's all at the service of the music

Notes: Bring your Eurorack modules to life with our groundbreaking 2HP wide Switchable Logic Gate, an essential tool for anyone looking to enrich their modular synthesis with complex rhythmic patterns and sequences. This compact but powerful module offers intuitive operation and innovative features that make it a must-have for creative sound tinkerers.

The module offers a separate inverter stage, which is normalized to the output of the first stage. Not only does this allow you to reverse the original logic operations, but it also gives you the ability to create even more complex and creative waveforms.

An LED is provided for each stage, which indicates the current initial state. This direct visual feedback makes it easy to see and understand the impact of your settings in real-time, which is invaluable, especially during live performances.

Dimensions: 2 HP, 39 mm deep

Current Draw
30 mA +12V
15 mA -12V
0 mA 5V

Notes: Discover the flexibility in your sound design with our ultra-compact 2HP wide Sync LFO (Low-Frequency Oscillator) in Eurorack format. Designed for musicians looking for versatile modulation in their Eurorack system, this LFO delivers a wide range of possibilities to make your soundscapes dynamic. Despite its small size, this Sync LFO offers a wide range of features to help you reach your creative potential.

Compact design With a width of only 2HP, the Sync LFO can be seamlessly integrated into your Eurorack and saves valuable space for additional modules.

Unleash your creative freedom with manual control over the rate and waveform of the LFO. Whether it's slow, gentle modulations or fast, rhythmic oscillations, you're always in control of the character of your sound.

Synchronizable

Expand your sound spectrum with the LFO's synchronization function. Sync it with external beats to keep modulations perfectly in time and add precise rhythmic structure to your sound design.

With three different output waveforms - triangle, square and sine - the Sync LFO opens up a wide range of modulation possibilities. Choose the right shape to give your sounds the texture and movement you want.

Intuitive Performance

Easy-to-use controls make it easy to perform live or explore new sonic ideas. Create modular soundscapes with the Slimline Sync LFO and breathe life into your sounds.

Content:
Module
Bus cable 16-pin > 10-pin, 30cm
2x Screw M2.5x9 Phillips
2x Screw M3x9 Phillips

Notes: Sibilla is a DSP digital stereo oscillator that aims to translate into music the beauty and harshness of a semi-barren mountain. Its sound is sculpted by various saw and sine waves running through intricate delay networks, altered by LFOs, white noises and creating constructive and destructive interferences.

Both stereo channels are the output stages of two feedback audio loops.

Each loop is made up by a main sub sinusoidal wave oscillator and two saw and sine waves with frequencies affected by the generation of harmonics (right channel) and subharmonics (left channel). All waves have different phases whose offset is constantly affected by minor variations created by two pairs of grains randomly fluctuating within the waves amplitude spectrum and being sampled at a certain speed.

Waves then meet to each other to a common point, together with two white noise sources, creating constructive and destructive interferences constantly affected by two LFOs movements.

Interferences are then run into a resonant low pass filter and then distributed to four different delay lines from which they are fed back into the audio loops at different time intervals depending on the grain's movements.

Width: 10HP
Max depth: 29.6mm
Current draw: +12V: 125mA, -12V: 30mA, +5V: 0mA;
Material: 2mm anodised brushed aluminium

Notes: The P8S8 controller is for those who love those little sliders. The sliders behave like regular pots, so we named the module P8S8 (the "S" stands for the switches).

The P8S8 has eight Alpha sliders with a range of 20 mm. As a speciality the sliders contain LEDs. Their brightness can be controlled and used for any purpose. As long as you don't use the LED registers, the brightness of the LEDs reflect the current slider positions.

At the bottom the P8S8 has eight 3-way toggle switches.

As always in the DROID universe, it can be patched as whatever comes to mind, but looking at this module, it's almost imposing to be used as modulation sequencer or ADSR controller.

Shipping includes a short ribbon cable for connecting the controller to the master or to the previous controller. If you want to place the controller further away from the master, you can purchaser longer ribbon cables here in the shop.

Current Draw: 20 mA +12V, 0 mA -12V, 0 mA 5V
Width: 8 HP
Depth: 25 mm

Notes: Add-on for the Krait module.

Ewa was created as a lovely partner for the Krait module, a syncable 3-channel modulation source. Paired with Ewa, Krait will get new useful abilities, such as 3 freely routable cv inputs, endless encoder for smooth editing without value jumps, dedicated clock menu button and clock and reset outputs.

Each CV input can be used to record external cv source in Record mode. Beside that you can route any input to any parameter of the LFO and Random too. With Ewa now it is easy to modulate LFO rate or Random slew for example. CV inputs are bipolar and react to the signals between -5 +5 voltages.

Additionally a dedicated clock menu button and clock output can make Krait as a clock source for other modules in your system that need sync.

Technical details

4 hp

20 mA +12V

12mA -12V

0 mA 5V

42 mm deep

CV input voltage ranges: +5-5v, 0v+5v

To use Ewa, you need to install firmware 2.0 on Krait.

Notes: Module A-188-9 is a so-called high speed VCO that tracks perfectly to the 1V/oct scale in the frequency range of about 15kHz ... 500 kHz. The main application is the exact drive of BBD modules (A-188-1/2) to generate sounds realized by means of the so-called Karplus-Strong synthesis. But even in cooperation with other modules featuring high speed inputs (e.g. digital noise, delay, frequency divider) the A-188-9 makes sense. In principle the module is made of a precision audio VCO followed by a PLL (phase locked loop) unit that multiplies the frequency of the audio VCO by 32. Thus the module can be used also as an audio VCO as it features the standard waveforms sawtooth, triangle and rectangle with adjustable pulse width.

Controls:
Frq: frequency control (coarse)
CV: attenuator for the frequency control input CV
Fine: frequency control (fine), small control without knob
PW: pulsewidth control for the rectangle output of the audio VCO, in HSVCO mode this control has to be in the range marked "HSVO", small control without knob

Sockets:
1V: frequency control input 1V/oct scale
CV: frequency control input with attenuator CV
socket with rectangle symbol: rectangle output of the audio VCO, the pulse width of this output is adjusted by means of the control PW, output level ~ 7Vpp (~ -3.5V/+3.5V)
socket with sawtooth symbol: sawtooth output of the audio VCO, output level ~ 7Vpp (~ -3.5V ... +3.5V)
socket with triangle symbol: triangle output of the audio VCO, output level ~ 7Vpp (~ -3.5V ... +3.5V)
socket with inverted comb symbol: high speed VCO output, waveform rectangle, output level ~ 5Vpp (~ -2.5V/+2.5V)

Switches:
Range
upper position: audio VCO mode (frequency range of the audio VCO about 15 Hz to 6 kHz, the high speed output is not usable in this mode! )
lower position: High Speed VCO mode (frequency range of the high-speed output about 15 kHz ... 500 kHz, frequency range of the audio VCO about 500 Hz ... 15 kHz), in this mode the audio VCO and the high speed VCO can be used simultaneously

Slew
upper position: medium slew time
centre position: short slew time
lower position: long slew time
Technical Note regarding the Slew parameter:

Besides the audio VCO the module contains a so-called PLL circuit (Phase Locked Loop) and a 1:32 frequency divider. A slew limiter is part of the PLL. It defines how fast the frequency of the PLL follows the frequency of the VCO. The PLL cannot follow the VCO without any delay. Rather one has to find a compromise between the residual ripple of the PLL frequency and the frequency follow rate. That is the job of the slew limiter (works in principle like a glide or portamento unit). For this the module is equipped with a 3-position switch that is used to switch the slew time in 3 ranges. When mostly higher frequencies are used ((~ 100kHz ... 500 kHz) a short slew time can be chosen. When also lower frequencies are required (< 100kHz) a longer slew time may be used to reduce the residual frequency ripple. More details about the working principle of a PLL can be found in the information about module A-196. Module A-188-9 is in principle an A-196 combined with an audio VCO and a 1:32 frequency divider.

Width: 4HP / 20.0 mm
Depth: 45 mm (measured from the rear side of the front panel)
Current: +30 mA (+12V) / -15 mA (-12V)

Notes: ***B-STOCK: Slight surface marks ***


Module A-192-2 contains two independent CV/Gate-to-Midi/USB interfaces. For each of the two sub-units these inputs are available:

- Gate Input (min. +5V)
- CVN Input (defines the Midi note number), 1V/octave standard, range 0...+10V (i.e. 10 octaves)
- CVV Input (defines the velocity value assigned to the Midi note message), can be used alternatively for Midi volume (CC#7), range 0...+5V
- CVC Input (free assignable to any Midi control change number), range 0...+5V

For both sub-units a common CV Transpose input is available (1V/octave, range 0...+10V). The voltage applied to this input is added internally to CVN before the Midi note number is generated. It can be used e.g. to transpose two sequences simultaneously by one voltage.

How it works:

Whenever the rising edge of the Gate input is recognized a Midi note on message is generated. The note number corresponds to the sum of the voltages applied to the CVN input and the common CV Transpose Input that is present at the rising edge of the gate signal.

Notes: The Dystopia is ideal for complex patches where sound can be used to thicken the sound or filter out frequencies. It features a noise generator which can provide white, white to pink, white to blue, scatter, digital, pitch types of noise. The digital noise is brilliant as it can be used as a random gate generator. The bit crusher stage can range from one second up to 8kHz - meaning you can obtain really thick distortions - ideal for a range of styles of music. You can reference all the signals through the four LEDs too - which help you determine the level at which the module is pumping out the noise sources.

Noise Generator (white, white to pink, white to blue, scatter, digital, pitch)
Bit Crusher with range from 1sec up to 8kHz
Digital Noise can also be used as a Random Gate Generator
Dual Filter (parallel) 12dB Low Pass and High Pass Filter
When you insert a signal to the External In, the Internal Noise generator is cancelled and the External Signal is in process
LED indicator for all controls to illustrate the current CV Sum

56 mA +12V
67 mA -12V
35 mm deep
10HP

Notes: This module is divided between 3 functions, a 3 channel mixer, with 3 knobs the the singal together, this then passes in a dual analogue filter, a resonant 24db LPF and a non resonant 18db HPF, passing from there into a built in VCA.

Notes: Analogue VCO with range from 16Hz up to 32.000Hz.

Variable Voltage Controlled Wave Shaper.

Advanced pitch control with Voltage Controlled Quantizer, so it is always in tune.

Hard Sync Input.

Separate Pulse Output, for use as a clock or to sync other oscillators
.
Power Consumption: 114mA @ +12V , 46mA @ -12V.

35mm depth.

Notes: Enter a galaxy of rich and vibrant delays. The Dreadbox Nostalgia 3 Stage Delay is a superb effect module that can give you amazing results in moments. Delay is a true staple in the effects world and it can take your modular music to the next level via just a few cables.

The Dreadbox Nostalgia 3 Stage Delay is ideal for a range of modular music styles, from ambient to acid house. This 10HP module fits snugly in your system and has enough CV control to keep even the most avid patcher satisfied.

117 mA +12V
25 mA -12V
35 mm deep
10HP

Notes: ***B-STOCK: Item refurbished, repaired and in perfect working order.***


Endlessly customisable digital 'modular system within a modular system'. Includes more than 80 modules, allowing you to create effects, synths, control devices, oscillators, filters and much more.

Supplier's Notes:
What's a Euroboro?

The ZOIA Euroburo is a digital modular system that can be placed in your modular system, a real Russian nesting doll situation. We added a headphone output and a super-slim optional case so the Euroburo can live happily on your desktop or be easily mounted in a Eurorack case. Hence the euro + buro, pronounced "bureau"...get it!?

Create unique signature effects, synthesizers, sequencers and more while using 4 freely assignable CV ins and 4 outs to interface with other CV enabled devices. The additional headphone output and powered 9v case makes the module even more desktop friendly. With over 90 modules from CV utilities to audio effects, oscillators and envelopes to MIDI, the Euroburo can do almost anything to fill the gaps in your setup.

There's no need to worry about getting bogged down with endless menus or a cluttered interface. Creating patches and performing with the ZOIA is a tactile experience. Patching, deleting or moving modules and editing values can all be done quickly using the push-button grid and a flick of the encoder. With the addition of dedicated push buttons for the CV and Audio I/O, patching on the ZOIA has never been faster.