Synth modules

Notes: Designed to provide a powerful, flexible sampling engine for modular synthesis, the ASSIMIL8OR Multi-Timbral Phase Modulation Sampler module is the latest incarnation of Dave Rossum's decades-long pioneering of affordable professional sampling technology.

ASSIMIL8OR provides eight independent channels of sampling with sound quality that can range from extremely hi-fi to low fi, all with extensive real-time CV control.

Assimil8or Specifications

Sample memory
2,300 seconds at 48kHz mono, freely allocatable between the 8 channels

Sample rates
48kHZ, 96kHZ, 192kHZ

A/D & D/A
24 Bits

Internal processing
32 Bits

Latency
100 microseconds at the Mix Outputs
180 microseconds at the Individual Outputs

Inputs

Sample L/R
2x 3.5mm mono socket
100kO Input Impedance

Gate/Trigger 1-8
8x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Control Voltage A 1-8
8x 3.5mm mono socket
100kO Input Impedance
96 kHz sample rate
Anti-alias filtered to 20kHz bandwidth

Control Voltage B&C 1-8
16x 3.5mm mono socket
100kO Input Impedance
48 kHz sample rate
No anti-alias filtering

Outputs

Mix Outputs L/R
2x 3.5mm mono socket
1kO Impedance

Individual Outputs
8x 3.5mm mono socket
1kO Impedance

Power requirements: +/-12V via 16-pin, Doepfer-style connector
Current draw: 220mA +12V, 30mA -12V
Dimensions: 28HP (W); Panel to power connector (with connector plugged in) 25mm (D)

Supplied accessories:
1x Micro SD card
1x 16-pin, Doepfer-style cable
4x M3 screws
4x M2.5 screws
4x Nylon washers
1x Quickstart Guide

Notes: Following in the tradition of Evolution and Morpheus, LINNAEUS represents yet another Dave Rossum innovation in filter technology.

LINNAEUS is a stereo state variable filter that provides the unique ability to linearly modulate its resonant frequency through zero into negative frequency, while maintaining stability. With extensive voltage control of nearly every parameter, Linnaeus lets you manipulate the filter's natural response curve in new ways, to create both subtle and dramatic timbral effects. And with a "one-knob-per-parameter" interface, LINNAEUS inspires sonic creativity that invites (and rewards) real-time interaction.

LINNAEUS's cutoff/resonant frequency is exponentially voltage controllable from sub-audio to ultrasonic frequencies, while its resonant gain (Q) is exponentially voltage controllable from 0dB to greater than 60dB.

LINNAEUS's channel output response characteristics are independently and continuously variable from Lowpass, through Bandpass, Highpass and Notch, to Low and High Shelving characteristics. Voltage control of the response characteristics are independently selectable for each of the two channels.

The linear thru-zero modulation is provided by an integrated modulation oscillator and/or an External Linear FM modulation input.

The voltage-controllable modulation oscillator can track the filter's exponential frequency or operate independently. The modulation oscillator's output waveform is continuously variable from Off through Sine, Triangle, and Sawtooth, to Square. The modulation oscillator output is summed with the external linear FM input and applied to the modulation index VCA, which controls the linear thru-zero modulation index from zero to 8X. The modulation index is, of course, also voltage controllable.

LINNAEUS features include:

- Ultra-wide frequency range, exponentially voltage-controllable from sub-audio to ultrasonic via precise 1V/OCT and attenuverted CV inputs.

- Thru-zero linear frequency modulation via an internal modulation oscillator and/or an external linear FM input.

- Variable linear modulation index, voltage-controllable via an attenuverted CV input.

- Resonance (Q) exponentially voltage-controllable from 0dB to greater than 60dB via 6dB/V and attenuverted CV inputs.

- Continuously variable response characteristics independently selectable for each of the two channels via individual Response Enable controls. Characteristics include Lowpass (12db/oct and 6db/oct), Bandpass, Highpass (12db/oct and 6db/oct), Notch, and Low and High Shelving.

- Voltage control of response characteristics via an attenuverted CV input. Individual Response CV Enable controls let you independently enable or disable CV control of response for each channel.

- An integrated modulation oscillator with continuously variable waveform from Off through Sine, Triangle, Sawtooth and Square. Its frequency can be exponentially voltage controlled via an attenuverted CV input.

- A Track control that lets the modulation oscillator precisely track the filter's exponential frequency.

- Stereo inputs and outputs. LINNAEUS can process a stereo signal or two independent mono signals. While the two channels share the filter's cutoff/resonant frequency, the filter response characteristics can be independently controlled for each channel.

- The solid, high-quality construction you expect from Rossum Electro-Music.

What's with the egg?

The functional description above describes LINNAEUS as originally conceived and designed by Dave. However, late in the beta testing process, Rossum's tester, Chris Meyer, raised the possibility of alternative behavior that would let LINNAEUS function as a self-contained (i.e., no input required) stereo oscillator and/or FM percussion voice with some really powerful timbral capabilities.

While Rossum were initially hesitant to try to shoehorn the new functions into the existing interface, once Dave had prototyped them, it was clear to us all that they were just too cool not to include. So, Rossum have provided them in the form of alternate firmware accessed by pressing and holding the Egg button.

LINNAEUS is 16HP wide and 25mm deep.

Power requirements (max): 155mA +12V, 36mA -12V. Reverse polarity protected.

Notes: With the MORPHEUS digital filter module, Rossum are finally able to unleash the full power of the 14-pole Z0-Plane Filters that Dave invented for the E-mu Morpheus synthesizer.

The MORPHEUS Eurorack module includes over 280 filter configurations, which are called Cubes. Each Cube is composed of up to 8 complex filters that you can picture as being at the corners of a three dimensional cube (hence the name). Morpheus gives you the ability to smoothly interpolate between those 8 filters within the cube's three dimensional space.

Due to processor limitations back in the day, the original Morpheus was capable of real-time morphing in one dimension, but interpolation in the frequency and transform dimensions were set at note-on and remained static for the remainder of the note. But even with that limitation, Morpheus offered sonic capabilities that are unmatched to this day.

With the MORPHEUS filter module, you now have simultaneous real-time CV control of all three dimensions, for dynamic timbral effects unlike anything you've ever heard before. In stereo.

Like all Rossum Electro-Music digital modules, all parameters are available for adjustment with a single button press. No menu diving.

Morpheus Specifications

Filter cubes: 289
Filters: 1000
Filter sequences: 200
Sequence steps: 20,000 Dynamically Allocated

Inputs: Audio L/R
2x 3.5mm mono socket
100kO Input Impedance

Full Level Frequency CV
1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Frequency CV
1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Morph CV

1x 3.5mm mono socket
100kO Input Impedance

Attenuverted Transform/Distortion CV

1x 3.5mm mono socket
100kO Input Impedance

Filter Sequencer Dec

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Filter Sequencer Inc

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Filter Sequencer Reset

1x 3.5mm mono socket
100kO Input Impedance
1.6V threshold

Outputs

Audio L/R
2x 3.5mm mono socket
1kO Impedance

Power requirements
+/-12V via 16-pin, Doepfer-style connector

Current draw
135mA +12V, 25mA -12V (maximum)

Dimensions
18HP (W); Panel to power connector (with connector plugged in) 25mm (D)

Supplied accessories
1x 16-pin, Doepfer-style cable
4x M3 screws
4x M2.5 screws
4x Nylon washers
1x Quickstart Guide

Notes: LOCUTUS is designed to interface Assimil8or with MIDI instruments, controllers, and sequencers to provide multichannel modulation and new polyphonic possibilities.

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

LOCUTUS is 6 HP wide and 25mm deep.

MIDI sources connected to LOCUTUS’ MIDI IN port can be used to modulate Assimil8or parameters using velocity, channel pressure, and MIDI CC (Continuous Controller) messages, select presets using MIDI Program Change (PC) messages, and/or optionally trigger Assimil8or channels with MIDI notes using user-selectable assignment modes. MIDI Setups can be configured with assignment modes including Dynamic, which intelligently cycles through Assimil8or’s channels to easily create polyphonic patches, Multi assignment modes ideal for playing multitimbral Assimil8or patches with MIDI sequencers, SP-1200 modes designed especially for triggering Assimil8or with SP-1200’s MIDI output, and more.

Locutus’ MIDI OUT port can be used to optionally transmit program messages when presets are changed and/or to send MIDI CC data based on the analog control voltages patched to Assimil8or’s 24 CV inputs. Using the new CV-to-MIDI options, Assimil8or and Locutus can be configured to control and modulate MIDI equipment using a eurorack modular system.

Notes: ***B-STOCK: Without original box, product in perfect working order***


Pico BBD is surprisingly great sounding (we were surprised ourselves), full analogue 4092 stage bucket brigade delay module; the smallest BBD in Eurorack. Besides nice and clean flanger and delay effects, at full CW settings of TIME and feedback knobs it can produce extreme sonic artefacts. Tweak knobs and enjoy!

Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


A characteristically unique take on mixing from Buchla, with six mono inputs and a built-in mic/guitar pre-amp. Each channel can be cued to a monitor mix, while the first and last channels also include voltage-controlled panning.

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

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

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

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

Buchla 207t Features

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

Eurorack module
28hp wide

Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


The Wave Transformer is a complex single oscillator with 7 audio outputs. Its method of wave shaping differs from other complex oscillators in that it is not based upon classic wave folding such as is common in West Coast synthesis, or filtration such as is common in East Coast synthesis.

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

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

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

If that is not enough, there is a Shape Insert that allows you to transform external oscillations and modular-level audio sources.

Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


The 'Mega Milton' is a smorgasbord of handy all analogue utilities in just 8HP that will greatly extend the functionality of your Eurorack system.

It includes a stereo line input converter for incorporating line level external sources into a Eurorack system, a fixed 4 input mixer with breakout attenuator for combining signals, a gated slew limiter for adding slides to sequences, a sample and hold with analogue white noise with a myriad of uses such as generative melodies or producing percussive textures and finally a buffered mult for droop free signal distribution with handy LEDs to monitor.

All sections are normalised to help with typical use cases such as generating random CV from the sample & hold section, a smooth random source from the slew output and breaking out a standalone attenuator from the fourth mixer input.

The 'Mega Milton' provides essential classic synthesizer building blocks for patching in any Eurorack system.

Ideal For

Incorporating stereo external sources easily into your Eurorack system.
Signal attenuation and basic mixing in a small space.
Building percussion sounds from an analogue noise source.
Producing clocked random to add interest and variation to patterns and sounds.
Adding gated 303 style slides to patterns.
Creating and Manipulating patterns with Sample and Hold.
Buffering and monitoring voltage across multiple VCOs or other destinations with no drop.

Tech Specs

Supply: +12V 70mA / -12V 70mA
Size: 8HP
Depth: 32mm

Notes: The "uMM" combines a MIDI merger and two independent THRU distributors in a module that is only 4 HP wide. All sockets on the module are in MIDI TRS-B format.

At the heart of the two-input MIDI merger is a small, powerful ARM processor with plenty of buffer memory. Two MIDI streams are mixed to one output and can also be tapped via an additional second output. Two LEDs signal the operation of the merger: one LED indicates MIDI activity at the inputs, and a second LED warns of too much data at the inputs.

The second group of functions consists of two independent, separate MIDI THRU distributors. The MIDI data at the respective MIDI input can be picked up and distributed at the three THRU outputs. If required, a 1-to-5 distributor can be created from the two units by connecting an output of the left group to the input of the right group.

Features:

4x MIDI IN (TRS-B)
2x MIDI-OUT (TRS-B)
6x MIDI-THRU (TRS-B)
Powered via Doepfer connector

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


The Furthrrrr Generator has a main oscillator (carrier) with an extensive and fully voltage controllable wave multiplier and a modulation oscillator (modulator) that can cross-modulate the carrier. Each oscillator has hard and soft sync and also features an integrated tuner: if both LEDs are lit the VCO is at note A. Left LED is lit at note Ab and right LED at A#. Frequency potentiometers are ten-turn models and thus allow for easy tuning. Frequency range of the VCOs is 10Hz-10kHz (and much lower in modulator's LFO mode). Both VCOs feature 2 frequency CV inputs (1x with bipolar attenuator, 1x with 1V/octave), one FM input (jumper selectable between linear and exponential FM) as well as separate input for hard and soft sync. The voltage characteristic can be selected between 1V/octave and 1.2V/octave (Buchla norm).

The main oscillator (carrier) outputs the waveforms sine, saw, square and white noise. The two outputs marked with the magic eye are outputs of the "harmonic section" that generates very complex sounds by the wave multiplier and its parameters symmetry, order and Furthrrrr in the module's right-hand section. Symmetry lowers the level of even harmonics and amplifies the odd harmonics (this affects the pulse wave's width as well). Order adds saturation to the high order harmonics and resembles a low pass filter. Furthrrrr alters the level of harmonics set by the other parameters and produces very interesting, partly brute sounds with lots of harmonics by clipping and folding the wave. All three parameters can be voltage controlled. The carrier oscillator also has inputs for hard and soft sync, the sync-switch can synch directly to the modulator.

The modulation oscillator (modulator) has three wave forms with direct outputs: sine, saw and square. Using the internal modulation via the "mood section" the waveform is selected with a button; an additional staircase wave form is available here, but it can be overridden by inserting a signal into the external input socket. A switch activates the LFO mode.

The Mood section is responsible for the internal modulation of the carrier by the modulator. Switches determine the modulation destination(s) that can be activated simultaneously. These are the Furthrrrr parameter of the harmonic section, the amplitude and the frequency of the carrier oscillator. The "balanced" switch activates the ring modulation between both VCOs. intensity of modulation is controlled by the "mood index" potentiometer and the according CV input with bipolar attenuator.

Notes: CV Random is a random CV generator with 4 types of randomness and a triggerable sample-and-hold function.

Sliders allow you to set the internal clock tempo (RATE), shape the probability of triggering (PROB), blend old with new values (RND) and set the shape of all four random outputs (SHAPE).

4 different sliders

RATE

Sets the tempo of the internal clock. The CV input below the slider adjusts the clock rate, with 1V/oct calibration when the CV attenuverter is 100%. Upon each clock trigger, the RATE slider light blinks, and there is a chance for the internal random source to generate a new value.

PROB

This probability is set by the PROB slider, and if a new value was generated, the PROB slider light blinks and a pulse is emitted from the TRIG output.

RND

When the internal random source generates a new value, it mixes the previous value with a random value, with an amount specified by the RND slider.

SHAPE

The SHAPE slider sets the shape of all four random outputs. At its lowest position (0%), all outputs immediately jump to the new random value (the target value) when the clock is triggered.

At non-zero positions, the outputs interpolate between the previous and the target value, using a different behaviour for each output.

Internal random clock source

Whenever the clock activates, the RATE slider's light flashes. At the same time, there's a chance that the internal random source will create a new value, depending on the PROB slider's setting.

If it does create a new value, the PROB slider's light flashes too, and a pulse comes out of the TRIG output.

External IN & TRIG inputs

If the TRIG input is patched, the RATE slider is ignored, and the internal clock is only triggered when an external trigger is received. The PROB slider is used to filter this trigger by applying some probability.

Self-modulation

Thanks to a switch in the back of the module, you can normalize the LIN output to the 4 CV inputs and adjust the amount of modulation for each parameter with the attenuverters.

This adds another layer of randomness to your results, enabling more dynamic and unpredictable outcomes.

SHAPE Outputs

The STEP output jumps to the new value in one step at 0% SHAPE, and divides the transition into 16 steps at 100% SHAPE.

The LIN output immediately reaches the new value at 0% SHAPE, and takes the whole clock cycle to do so at 100% SHAPE, staying constant in between.

The EXP output shifts exponentially, becoming linear at 100% SHAPE, with its pace adjusted by the SHAPE slider.

The SMTH output transitions smoothly, with the speed controlled by the SHAPE setting, holding at the target until the cycle ends.

Specifications

Dimensions 10HP - 50×128,5mm
Current 63 mA +12V / 11 mA -12V / 0 mA +5V
Input & Output Signals +/-10V
Impedance Input 10k - Output 10k
Materials PCB and Panel - FR4 1,6mm
Depth 40mm including connectors (Skiff friendly)

Notes: Saturation is a sound designer's best friend. As applying saturation to a sound can make it sound warm, rich and defined. But without any other processing the opposite can happen; making the sound harsh, destroyed and undefined. An often used technique in music production is to saturate specific parts of the spectrum, adding harmonics to enrich the sound but not lose its original quality.

Wyvern takes this technique and makes it a creative sound design tool. When deconstructed Wyvern is built out of a specific chain: Filter EQ, Saturation, VCA, Dual Filter, Dry/Wet Balance. Different combinations of these stages can be used for a variety of sound design and patch situations. And it is all in stereo, so you can apply it to your final mix and stereo signals with ease too!

The Filter EQ stage has a high-shelf, low-shelf and bell curve to boost or diminish parts of the spectrum. When the gain is set to a minimum the EQ curves turn into low-pass, high-pass and notch respectively. A Resonance control puts emphasis on a certain frequency, or it can be used to make Wyvern scream. This is then sent to a Saturation stage. The Drive control sets the amount of Saturation of one of the three

Saturation types

Soft clipping puts more emphasis on the third harmonic and compresses the sound.

Hard clipping puts emphasis on odd harmonics. Finally an Allpass distortion adds phase shifts and distortion. The Saturation stage also has a level control which can be used to decrease the gain after saturation is applied and can function as a unipolar VCA. The Saturation stage is also accompanied with a clip indicator led and a boost switch to scale input signal correctly or simply add more or less harmonics.

The Post-Saturation stage is a high-pass and low-pass combo. Allowing you to select a frequency band from the previous stages. Along with a balance control to adjust the balance between the dry and wet signal.

Whether you are looking to destroy your sound or go for subtle analogue warmth; Wyvern has got you covered. Even when not used for saturation alone. It can be a Stereo Tone Controller, EQ, Filter, VCA and Phaser, all and anything in between. Making it a very fun and powerful sound design tool!

Features

- Filter EQ with Low-shelf, High-shelf, Bell, Low-pass, High-pass and Notch curves.
- Resonance to add emphasis on a frequency or to make it scream.
- Soft clipping, Hard clipping and Allpass distortion for a variety of flavors.
- Boost switch and clip indicator led to set Saturation scale.
- Level and VCA to adjust level while Saturation amount remains the same.
- High-pass and Low-pass combo to select a part of the spectrum.
- Dry/wet control to dial in the right amount of processed signal.
- Gain with increased and adjustable center detent position.
- V/oct tracking with temperature compensation.

165mA @ +12V // 150mA @ -12V

Notes: Neat little interface module to help pad controllers play nicely with Eurorack. Hook up a device like a Launchpad or APC and jam out rhythms with retriggering options, dynamic control and MIDI sync.

Supplier's Notes:
Triggerpad is a dynamic trigger/gate sequencer in eurorack format on only 6hp. A USB MIDI controller with an 8×8 grid like Launchpad or APC is used to display and edit the patterns (see the list of compatible controllers). The user experience is tailored to live performance and detailed composition: dial in simple rhythms or complex polyrhythms, retrigger at audio rate, create dynamic percussions with velocity triggers or use longer pulses to create steppy modulations.

By using USB MIDI controllers that you might already have and maybe not use anymore, we avoid producing more plastic. Give your old gear a second life!

Dimensions & consumption

Width: 6hp
Depth: 39mm
+12V: 120mA (without USB MIDI controller connected)
-12V: 20mA
5V: 0mA
USB MIDI controllers consume up to 150mA on +12V

Connectivity

8 dynamic trigger/gate outputs (0-10V)
USB MIDI Host
Clock in
Clock out
Reset in
Reset out

Compatibility

Launchpad Pro Mk3
Launchpad X
Launchpad Mini Mk3
Launchpad Mini Mk2
Launchpad Pro
Launchpad Mk2
Launchpad S
APC Mini Mk1
APC Mini Mk2

Notes: Another update for WMD's clever dual VCA, this time a little bigger to give more control. Digital control of CV and attenuation gives lots of creative options. Third time's a charm.

Supplier's Notes:
WMD have done several designs of this circuit over the years, the first one had no knobs, the second was too small, the MKIII is finally how this circuit should be packaged. This module does some really cool stuff and is super useful in any system.

The Digital VCA lets signal through like a normal VCA, but the CV and attenuation level is controlled digitally. This lets us do things like wait until there is a zero crossing to change the amplitude, resulting in clickless amplitude changes.

The Trigger mode causes the VCA to only update when a trigger is received. The addition of a noise circuit for each side let us do a very quick and easy sample and hold that never droops. With no input, 5V is normaled to the attenuator, so you get a 0-5V sample and hold. In Bipolar mode, you can get -5 to +5V.

Both sides have bipolar VCA mode (polarizer), which lets them invert the signal when negative CV comes in. Also known as ring modulation. With the zero crossing detector, this can produce some super wild wave shapes.

Features

Dual VCA Design
Unipolar or Bipolar Operation
DC Coupled Analogue Signal Path
Low Distortion / Low Noise
VCA Closes Completely
Zero Crossing Detector Mode
Trigger Mode
Two Independent Noise Sources
8 bit CV resolution
Great for Fast Envelopes and Sine Bass Sounds

Specifications

Power: +65mA, -45mA
Width: 8HP
Depth: 35mm with cables
Height: Eurorack 3U (128.5mm)
Board Height Behind Panel: 112mm
CV/Signal Input Impedance: 100k
Output Impedance: 1k
UPD in 3.3V Threshold Schmitt Trigger
ZCD produces 15us 5V pulse
5V CV to fully open VCA
Linear VCA response
20Vpp signal handling

Notes: An ultra-compact 10HP VC filter with bags of personality. Camber can be treated as a subtle, non-intrusive sound design tool, or something much more lively.

Camber is designed to be a fun, tactile filter with a small footprint. It's sound is neutral enough for basic filtering without a fuss, with a much more aggressive tone available using high resonance settings in three-pole mode.

Filter Core

The core of the filter is based on a state variable topology using 2164 VCAs and 1% tolerance integrating capacitors. Resonance and feedback control is provided by the fantastic circuit design originally by Neil Johnson "Voltage Controlled 3-Pole State Variable Filter" recently made available in Sound Semiconductor documentation.

Operation

Camber is switchable between low pass and high pass responses with one pole (6dB) and three pole (18dB) flavours of each. It has full CV control of both cutoff frequency and resonance amount. The input is DC-coupled allowing LFO and CV signals to be routed through the filter. The filter will also act as a simple oscillator producing a clean sinusoidal signal with the resonance control turned *almost fully clockwise, and no signal at the audio input. Dialling in the resonance so that it is just under the point of self-oscillation allows the filter to be "Pinged" by sending gate signals to the audio input. This is useful for tuned percussion sounds and FX.

Specifications

Intellijel 1u format
Width 10HP
Depth 33mm
Power requirements ~40mA +12V/~40mA -12V
Control voltage range 0-8V
Impedance Input 100K / Output 1K

Notes: Lush analogue EQ switchable between tilt and Baxandall high-shelf configurations.

Perform a variety of mixing and sound design duties ranging from subtle brightness and clarity adjustments to low-end rumble removal, boosted low-pass filtering and sweep EQ.

In the default tilt mode, turning the control knob clockwise simultaneously boosts treble and cuts bass. Turning anti-clockwise boosts bass and cuts treble. These boosts and cuts are pivoted around the mid-range. With the control knob at 12 o'clock the frequency response is neutral.

With Baxandall high-shelf mode enabled, turning the control knob clockwise past 12 o'clock introduces and gentle high-shelf EQ weighted around the upper mid-range. Turning the control knob anti-clockwise results in a wide high-shelf cut with subtle bass and mid-range adjustments.

Patching the channels in series allows for radical sound shaping and band-pass responses. Each channel provides up to +/- 8db of low and high-frequency gain control, summing into a low noise output stage. Hot input signals over 15vpp are saturated by active Zener diode clipping.

Features

Precise voltage control of EQ tilt and shelf
Seamless switching between EQ modes
High-quality components used throughout

Specifications

Intellijel 1U format
Width 18HP
Depth 32mm
Power requirements ~60mA +12V/~58mA -12V
Control voltage range 0-8V
Impedance Input 100K / Output 1K

Notes: Four-channel arpeggiator with customizable patterns and CV control

Opp Ned is a four-channel arpeggiator designed for creating patterns that can be modified with CV. Opp Ned ships with 12 of Nosie Engineering's favourite arps, including tetrads, major, pentatonic major, minor third, and pentatonic minor, but you can edit and save custom arpeggios to twelve memory slots. Recall your custom arpeggios manually or with CV using the Ptn input. If you ever want to restore the factory arps, just head to the Noise Engineering Customer Portal.

The transpose input makes it easy to combine Opp Ned with external sequencers, too!

Arps have never been easier than with Opp Ned.

Features

Size and Power
8HP Eurorack
+12v: 60mA
-12v: 10mA

Opp from Norwegian Opp for "Up"
Ned from Norwegian Ned "down"
"Ups and downs"

What's in the box

Module
Power cable

*** Noise Engineering no longer include screws with newly packaged modules. Bulk screws are available for purchase. ***

Notes: Space-conscious lowpass filter and volume processor.

A combination of VCF + VCA + Mixer that lets you mix three different sound sources, and shape their tone, and levels in a breeze.

The Pony Filter is built around the SSI2144 FATKEYS Chip. Has the elegant sound of the classic transistor filter without the associated distortions, due to Dave Rossum's "improved ladder" topology.

Features

3 Channel Mixer (Out normalized to channel three for feedback)
Temperature-compensated Q and frequency.
Compensated Volume VS Resonance
2 Cuttof CV INs.
CV 1 Selectable routing Cut-Off or Cut-Off+VCA
Voltage controlled Q
Two Segment Peak Meter

Specifications

Four-pole, 24 dB/octave
Current needs: +12V=50mA, -12V=45mA
Width: 6 HP
Depth Assembled Version: 22mm
Depth DIY Kit Version: 40mm
Designed, kits prepared and assembled in Barcelona.

Notes: Lush analogue EQ switchable between tilt and Baxandall high-shelf configurations.

Perform a variety of mixing and sound design duties ranging from subtle brightness and clarity adjustments to low-end rumble removal, boosted low-pass filtering and sweep EQ.

In the default tilt mode, turning the control knob clockwise simultaneously boosts treble and cuts bass. Turning anti-clockwise boosts bass and cuts treble. These boosts and cuts are pivoted around the mid-range. With the control knob at 12 o'clock the frequency response is neutral.

With Baxandall high-shelf mode enabled, turning the control knob clockwise past 12 o'clock introduces and gentle high-shelf EQ weighted around the upper mid-range. Turning the control knob anti-clockwise results in a wide high-shelf cut with subtle bass and mid-range adjustments.

Patching the channels in series allows for radical sound shaping and band-pass responses. Each channel provides up to +/- 8db of low and high-frequency gain control, summing into a low noise output stage. Hot input signals over 15vpp are saturated by active Zener diode clipping.

Features

Precise voltage control of EQ tilt and shelf
Seamless switching between EQ modes
High-quality components used throughout

Specifications

Intellijel 1U format
Width: 18HP
Depth: 32mm
Power requirements: ~60mA +12V/~58mA -12V
Control voltage range: 0-8V
Impedance Input: 100K / Output 1K

Notes: An ultra-compact 10HP VC filter with bags of personality. Camber can be treated as a subtle, non-intrusive sound design tool, or something much more lively.

Camber is designed to be a fun, tactile filter with a small footprint. It's sound is neutral enough for basic filtering without a fuss, with a much more aggressive tone available using high resonance settings in three-pole mode.

Filter Core

The core of the filter is based on a state variable topology using 2164 VCAs and 1% tolerance integrating capacitors. Resonance and feedback control is provided by the fantastic circuit design originally by Neil Johnson "Voltage Controlled 3-Pole State Variable Filter" recently made available in Sound Semiconductor documentation.

Operation

Camber is switchable between low pass and high pass responses with one pole (6dB) and three pole (18dB) flavours of each. It has full CV control of both cutoff frequency and resonance amount. The input is DC-coupled allowing LFO and CV signals to be routed through the filter. The filter will also act as a simple oscillator producing a clean sinusoidal signal with the resonance control turned *almost fully clockwise, and no signal at the audio input. Dialling in the resonance so that it is just under the point of self-oscillation allows the filter to be "Pinged" by sending gate signals to the audio input. This is useful for tuned percussion sounds and FX.

Specifications

Intellijel 1u format
Width 10HP
Depth 33mm
Power requirements ~40mA +12V/~40mA -12V
Control voltage range 0-8V
Impedance Input 100K / Output 1K

Notes: Tilt is the first in Laine's series of core modules, which will take cues from the main product line and strip back the features so both the module width and cost can be shrunk dramatically.

Comprising an 'Ambler' style tilt EQ network similar to the 'Stilts' topology, Tilt allows simultaneous cut and boost of low and high frequencies using a single control.

Tilt control circuits are known for the transparency of their cut and boost curves, coupled with the inherent emphasis gained from cutting one end of the frequency spectrum whilst boosting at the opposite end.

It sounds pretty good on all audio source material but is especially suited to tracking drums, guitar and lead, or manipulating effects sends and returns.

With the control knob at 12o'clock the sound passed is neutral. Turning the control knob clockwise will boost high and cut low frequencies pivoting from a fixed mid-range point. Turning the control anti-clockwise below 12 o clock will in turn boost low frequencies and cut the highs.

In addition to the EQ there is a soft clipping network which will begin to saturate signals over 15 volts peak to peak.

Tilt uses the same high quality OPA op amps, Alpha pots and ENIG PCBs as found in our main product line.

Features

Compact EQ tilt control in 1U
Soft clipping network
High-quality components used throughout

Specifications

Intellijel 1U format
Width 8HP
Depth 28mm
Power requirements ~10mA +12V/~10mA -12V
Impedance Input 100k / Output 1k

Notes: Really nice take on an arpeggiator module here. Four-channel design features editable arpeggio patterns, CV control and transposition. Real-time performance meets customisable melody generation.

Supplier's Notes:
Four-channel arpeggiator with customizable patterns and CV control

Opp Ned is a four-channel arpeggiator designed for creating patterns that can be modified with CV. Opp Ned ships with 12 of Noise Engineering's favourite arps, including tetrads, major, pentatonic major, minor third, and pentatonic minor, but you can edit and save custom arpeggios to twelve memory slots. Recall your custom arpeggios manually or with CV using the Ptn input. If you ever want to restore the factory arps, just head to the Noise Engineering Customer Portal.

The transpose input makes it easy to combine Opp Ned with external sequencers, too!

Arps have never been easier than with Opp Ned.

Features

Size and Power
8HP Eurorack
+12v: 60mA
-12v: 10mA

Opp from Norwegian Opp for "Up"
Ned from Norwegian Ned "down"
"Ups and downs"

What's in the box

Module
Power cable

*** Noise Engineering no longer include screws with newly packaged modules. Bulk screws are available for purchase. ***

Notes: Advanced generative sequencer featuring mutes per channel and transposition facilities.

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

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

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

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

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

Product Specifications

12V draw
50mA

-12V draw
36mA

5V draw
0mA

Depth
35mm

Notes: The Serge GTS is a complete redesign of the famous Serge Dual Universal Slope Generator (DUSG) by Serge himself - with a new core, optimized for speed and tracking. Like some of the clones it can be used for CV, but also provides exceptional audio performance: transient rise times as fast as 13us and a maximum cycle speed of 27kHz.

Some functions for which one Slope Generator can be used:

Function generator for linear, logarithmic, exponential, stepped etc. curves
Integrate an incoming signal
Sawtooth / Pulse oscillator
Add, subtract up to 4 signals
Max and Min function
VC Transient Envelope Generator
VC LFO
VC Portamento device, Envelope Follower (Detector), VC Pulse Delay (Monostable), Sub-Harmonic Series Generator (Divider), Audio Oscillator with variable waveform symmetry (saw to triangle), Non-Linear Audio Processor (low-fidelity VCF).
Serge GTS for eurorack:

Designed by Serge Tcherepnin 2021-2023
Increased audio range (up to >28kHz)
Tracks >5 octaves as a Sawtooth / Pulse oscillator
Temperature stabilized
Eurorack format (3U), 26 hp
Power consumption: 90mA @ +12V, 80mA @ -12V
(NEW) Skiff-friendly: < 25mm (1")

Notes: Really smart integration of macro controls for Eurorack, based on the original design by Emblematic Systems. Assign settings to eight CV outputs then morph with the crossfader or record movements to manage presets or set up complex real-time modulation. Can also operate as Catalyst Sequencer.

Supplier's Notes:
The Catalyst Controller is a macro controller with eight precision CV outputs and a responsive crossfader to morph between scenes. A scene is a snapshot of up to eight CV outputs, like a modular preset. Traverse a "pathway" composed of multiple scenes using the crossfader or an external CV signal, or immediately jump using the scene buttons. Record CV and slider movements, and play recordings back via a button or external trigger.

Each output has sub-millivolt precision and a maximum range of -5V to +10V. Channels have an adjustable morphing curve, can be quantized to common scales, restricted to a particular voltage range, or set to output gates.

Whether used as a CV preset manager, seamless transition generator, chord sequencer, CV recorder, or experimental CV playground, the Catalyst Controller puts control of your modular at your fingertips.

The Catalyst Controller can also turn into a Catalyst Sequencer! Hold down a special button combination to change between controller and sequencer modes. If you end up liking the Sequencer more, you can even remove the double-sided faceplate, flip it over, and re-install with the Sequencer artwork visible.

Based on the original Catalyst module from Emblematic Systems.

Specifications:

Smooth, responsive crossfade morphs between scenes
Eight output channels, each can be CV or Gate
Arrange scenes into pathways of up to 64 scenes
Smooth, responsive crossfader morphs from scene to scene along the pathway
Set slew/lag to limit how fast scenes can change
Adjustable Morph time per output
Control crossfading with an external CV
Record and playback up to 20 seconds of CV and crossfader motion
CV outputs can be set to -5V to +10V maximum, or limited to +/-5V, +5V, +3V, or +1V
CV outputs can be unquantized (sub-1mV resolution), or Quantized to common scales
Randomization of channel values/gates
Copy/paste
Based on the original Catalyst from Emblematic Systems

Pairs with: 4ms Catalyst Sequencer

Notes: The Catalyst Sequencer combines a traditional clocked step-sequencer with an unconventional phase-based sequencer to produce a new paradigm in sequencing. Eight precision CV sequencer channels can be simultaneously driven by a clock, a phase CV, or scrubbed manually with the crossfader.

Each of the eight channels has its own sequence length, quantizer, transposition, clock divider, randomization, voltage range (max -5V to +10V), and selectable CV (precise 16-bit resolution) or Gate mode.

Phase-based sequencing is an advanced form of sequencing where each step is selected by CV. The Catalyst Sequencer has a smooth, responsive crossfader that scrubs the sequence, playing it forward or backwards to track your motions. Patching in a CV signal will do the same: a ramp-up CV plays the sequence forwards, a ramp-down plays it backwards, a triangle plays it ping-pong, and complex waveforms generate new interesting rhythmic and melodic patterns.

The Catalyst Sequencer can also turn into a Catalyst Controller! Hold down a special button combination to change between sequencer and macro controller modes. If you end up liking the Controller more, you can even remove the double-sided faceplate, flip it over, and re-install with the Controller artwork visible.

Based on the original Catalyst module from Emblematic Systems.

Pairs with: 4ms Catalyst Controller

Notes: This is an expander for Bartender and Barback, enabling CV control of the level of the send bus of up to 8 channels.

Each section of four jacks has a cable to connect to the mixer modules. To get 4 channels to work with Barback you want to connect it to the last Barback in the chain of two. It will then pass along channels 3 & 4 to the next Barback.

Dimensions
2 HP

Current Draw
Module does not draw current

Notes: Two channel USB module.

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

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

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

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

Width: 4HP
12V: 10mA
-12V: 10mA

Notes: Dual three channel voltage controlled panning mixer

Mixer section

Channel 1 and Channel 2 are three channel mixers with potentiometers to control level of three different inputs for each channel. Each channel then has a potentiometer to control panning as well as CV control for panning and level control

Panning and VCA

The VC panners are equal loudness panning and the VCAs for each channel are linear response.

Built-in LFO

There is a built-in LFO that is normalled to the panning CV input of each channel. CH1 gets the standard LFO and CH2 gets an inverse, enabling alternating channel panning. The default is to use a TRI wave for the LFO, but there is a jumper on the back to switch it to SQU.

Width: 12hp
12V: 140mA
-12V: 120mA

Notes: A simple VC panner with CV-controlled level. The left input normals to the right input to give an easy way to add panning to a mono signal.

Expandable

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

Width: 4hp
12V: 40mA
-12V: 40mA

Notes: Two channel expander for Bartender

Mixer section

Each channel has the following:

Stereo or mono - Each channel can be treated as a stereo channel or a mono channel with two summed inputs.

CV inputs for both panning and level control

Two send buses - You can route each channel to one of two send buses. Each send bus is stereo. You can choose if you want the send to come before or after the level/panning controls.

Mute - The mute has both latching mute (up) and a momentary mute (down). The mute uses a capacitor to slow the turn off and on of the mute action. So it is mostly click-less, but you may find an occasional pop.

Cue bus - You can route each channel to the cue bus.

Expandable Mixer Series

Bartenders can be cascaded to create 8ch, 12ch, or 16ch mixer. The main level is what is sent the main level control can act as a group control.

Barbacks can be added to add 2ch to your mix. Barbacks can also be cascaded enabling up to a 16ch mixer configuration.

Send-VCA can be added for CV control of the level of the send.

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

Width: 10hp
12V: 125mA
-12V: 100mA

Notes: Neatly implemented performance mixer with four stereo channels. CV control of level and pan, two pre- or post-fader stereo send busses, quiet mutes and cueing via a front-panel headphone socket.

Supplier's Notes:
Four channel stereo production mixer

Mixer section

Each channel has the following:

Stereo or mono - Each channel can be treated as a stereo channel or a mono channel with two summed inputs.

CV inputs for both panning and level control

Two send buses - You can route each channel to one of two send buses. Each send bus is stereo. You can choose if you want the send to come before or after the level/panning controls.

Mute - The mute has both latching mute (up) and a momentary mute (down). The mute uses a capacitor to slow the turn off and on of the mute action. So it is mostly click-less, but you may find an occasional pop.

Cue bus - You can route each channel to the cue bus.

Mains Section

Two stereo sends outputs
Two stereo returns - which can also be used to directly insert into the main mix.
Main stereo outputs - level controlled with the slider and stereo VU meter.
Main mono output - summed output of the main L&R. If you are after an 8ch mono mix, you can use each channel in stereo mode, use the level control to control the level and then pan control to control the levels of the two channels.

Cue Section

1/4" Headphone jack along with level control
Fader control to listen to the main mix, cue mix, or an adjustable mix of the two.
Expandable

Bartenders can be cascaded to create 8ch, 12ch, or 16ch mixer. The main level is what is sent the main level control can act as a group control.

Barbacks can be added to add 2ch to your mix. Barbacks can also be cascaded enabling up to a 16ch mixer configuration.

Send-VCA can be added for CV control of the level of the send.

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

Width: 24hp
12V: 260mA
-12V: 225mA

Notes: CONTROL PATH is an all in one voice dynamics module that helps build full voices quickly. It contains two analogue envelopes with velocity cv, and one VCA. In a typical voice patch the left envelope will control a filter and the right envelope will be the voice VCA. Velocity control is provided for each envelope and delay front panel trimmers are used to compensate for any miss match between incoming gate signal and velocity CV timings. Envelope cv outs are 0-5V, Velocity cv ins are 0-5V.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 50mA / -12V 55mA

Notes: An ART wavetable dual oscillator mono voice source that can be used to build polyphonic patches and multi voice patches. It generates its harmonically rich sound using two 80s vintage D/A converters to feed your filters and effect processors. VORTEX comes loaded with dozens of wavetables, plus additional user wavetables can be loaded from the front panel SD card. A detune knob controls the second VCO and adds effects from deep phasing to a sub octave. The position knob and CV input selects waves in the tables and vibrato from LFOs to create FM. Like other ART sound generators a dedicated Gate output manages the voice envelope or any modulation synced to that voice. VORTEX is a great companion to the analog ATX1 and a must for digital synthesist enthusiasts.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 80mA / -12V 25mA

Notes: OCTOPUS is a powerhouse ART controller that takes MIDI in via the USB or DIN connector and outputs 8 ART channels with 8 velocity CV plus 8 drum triggers. Together with the ART oscillators the OCTOPUS provide unprecedented simplicity connecting the modular to your computer sequencers, hardware midi sequencers and keyboards. Each ART channel can play polyphonic notes, monophonic notes or create multi-channel polyphony using an internal voice manager. All together OCTOPUS can play more voices and notes from a single controller than ever was possible in modular. Using ART high speed control signals OCTOPUS can maintain low jitter for tight timing.

Please note, OCTOPUS is not a 1V/Oct midi to CV and should not be confused as one.

Size: 18HP - Depth: 40mm / 1.5"
Power: +12V 140mA / -12V 100mA

Notes: Need an offset voltage? Of course you do, you probably need one all the time, and you can never seem to find one. Well, here's two.

Yes, the Stereo Offset boasts not one but TWO linked offset voltages, and even better, they can be independently set as unipolar or bipolar with jumpers on the back of the module. To further aid your adventure in offsetting, bicolor LEDs will indicate the current state of both outputs.

Smoothly transition between voltages to simultaneously control other functions in your system, either by applying identical voltages to two different places, or by using simultaneous unipolar and bipolar signals for advanced control over your Eurorack system.

Do the right thing - get an offset generator you will love.

Dimensions: 2 HP

Notes: Dual Full Wave Rectification for Fun and Profit

Are you sick and tired of having pesky negative waveforms interfering with your signals? Do you detest seeing the back-and-forth motion of AC waveforms going backwards, then forwards? Those days are OVER with the Herzlich Labs FWR, a dual full-wave rectifier that puts an end to negative waveforms!

When you plug a signal into the FWR, you get two outputs in return, which have fully rectified the input. All negative inputs will be kindly returned to you in pristine, fully positive form. Beautiful bouncy sine waves, turned into pure "Oops! All Positive Waveshapes"-cereal, just the way you like it.

Use it anywhere where you want ONLY positive vibes, or use it with an inverter to get ONLY negative signals, if you please. Yes, you get two of these functions in just 2hp!

Dimensions: 2 HP

Notes: Drawing inspiration from the MMI Maxima, the MMI Helios is intended as a middle ground between the gestural control surface of the Maxima and the fingertip control of the smaller MMI.

Less density, but a much higher degree of patch control is the key point of the Helios, which complements other MMI devices very well, and can be joined with other Helios (Helii?) to form larger and creative control surfaces.

The design is greatly simplified compared to the original MMI, with only two I/O jacks - either can function as input and output, and their interaction with each other is determined by touching both plates simultaneously to form a connection, or in cooperation with other MMI devices.

Available in a "right" and "left" version - one is an exact mirror image of the other, which makes it suitable for having two units adjacent to one another.

Dimensions: 8 HP

***Please note: the "righthand" version is not included, it is shown in the picture for demonstration purposes only. ***

Notes: Beauty. Refinement. Attenuversion.

It's another Herzlich Labs release: the 2hp stereo Attenuverter. Two channels of connected attenuversion, allowing you to fully and smoothly invert any signals you plug in - turn negative to positive, turn phase to antiphase, and find all the variations in between.

With the usual pleasantly tactile sliding pot, the sAttenuverter is both performance friendly and inspiring to use. Extremely suitable for linked mono signals and stereo alike, it will feel right at home in the increasingly popular stereo setups in modular.

Dimension: 2 HP

Notes: Two bipolar LEDs allow you to visualize your voltages as they swing between positive and negative, as well as their level of intensity, without affecting the signal you input.

Think of it as a 1D oscilloscope in just 2hp! An easy way to grasp what your patch is currently doing, without sacrificing the money or space on more fully-fledged solutions. Useful as part of a patch to keep track of your oscillations, as a troubleshooting device to quickly verify that something is doing what it should be doing, or simply as a healthy dose of blinkenlights in addition to your existing array of sparkling LED pleasures. Best of all? You get two in just 2hp - you'll have to spend some serious cash to get that kind of function-per-hp density anywhere else!

Dimensions: 2 HP

Notes: Fade between two signals with the fader, just as nature intended

Do you have aspirations to smoothly fade between two signals? The Herzlich Crossfade lets you do exactly that, and exactly nothing else, using well-designed active circuitry and a smooth and performance friendly sliding potentiometer.

Whatever your aspirations are, this crossfader lets you live out your crossfading dreams in the simplest possible way, with not a fraction of an inch wasted on unnecessary features. Only delightful build quality and pleasantly smooth crossfading lies ahead for you.

Dimensions: 2 HP

Notes: Bartender? The power of gate signals at the touch of a button, please - but make mine a narrow one!

You already know what this is: it's a gate signal generator, and it generates gate signals. That's all there is to it. You press the button, the LED indicator lights up, and you get a 5v gate signal! Brilliant!

You get three, in just 2hp! That's 1 1/2 gate signal generators per hp! That's more than [competing product] from [competing brand]! You knew you made a good decision when you decided to look at this product.

All that remains now is to open your heart, and your wallet. Buy this gate generator - this version is the latching model (stays on or off after pressing). In fact, it works really well with the Quad Gate to Trigger Converter, also from Herzlich Labs - now you can generate both gates and triggers with ease! And in such little hp!

Oh, one more thing? Your friends are going to be very envious of this, when you show it off. Gold plated nuts, gold plated front panel, tastefully matte indicator LEDs, pleasantly tactile buttons, black hardware. All the details have received the closest care and attention.

Dimensions: 2 HP

Notes: Bartender? The power of gate signals at the touch of a button, please - but make mine a narrow one!

You already know what this is: it's a gate signal generator, and it generates gate signals. That's all there is to it. You press the button, the LED indicator lights up, and you get a 5v gate signal! Brilliant!

You get three, in just 2hp! That's 1 1/2 gate signal generators per hp! That's more than [competing product] from [competing brand]! You knew you made a good decision when you decided to look at this product.

All that remains now is to open your heart, and your wallet. Buy this gate generator - this is the momentary model (is normally off, and temporarily on when you press it). In fact, this also works really well with the Quad Gate to Trigger Converter, also from Herzlich Labs - now you can generate both gates and triggers with ease! And in such little hp!

Oh, one more thing? Your friends are going to be very envious of this, when you show it off. Gold plated nuts, gold plated front panel, tastefully matte indicator LEDs, pleasantly tactile buttons, black hardware. All the details have received the closest care and attention.

Dimensions: 2 HP

Notes: ART QUAD QUANTIZER is a four channel CV to ART Quantizer to play ART oscillators from CV sequencers, LFOs and anything that outputs CV. This is TipTop#s second ART controller option and is designed for those of us playing ART without a computer or MIDI source. The inputs take in positive, negative, bipolar CV voltages. Scales include Major Minor and the five other modes (Dorian, Lydian, etc). The module is simple to set up with a simple menu and one knob with switch for navigation. The 4th channel can be set to generate Chords and polyphonic note streams for ART Polyphonic oscillators.

Size: 8HP
Depth: 40mm / 1.5"
Power: +12V 38mA / -12V 4mA

Notes: The S1 is a promotional bundle that Tiptop Audio is offering to users, providing a 33% savings to get you started with ART. With these bundles, this incredible voice is included: the big, beefy 3 VCO stack. The bundles come in two options: Bundle S1, which uses the ART V/OCT Quantizer as a controller, and Bundle S2, which uses Octopus as a controller. In addition to the controllers, there are three ATX1 analogue oscillators, MIX7 for mixing them with plenty of headroom, and followed by the beloved 4-pole Z2040 filter that has been with TipTop since day one; it just sounds so good. Finally, we end up with Control Path dual envelope plus VCA dynamics modules. This special price is time limited and while supplies last.

ART QUAD QUANTIZER is a four channel CV to ART Quantizer to play ART oscillators from CV sequencers, LFOs and anything that outputs CV. This is Tiptop's second ART controller option and is designed for those of us playing ART without a computer or MIDI source. The inputs take in positive, negative, bipolar CV voltages. Scales include Major Minor and the five other modes (Dorian, Lydian, etc). The module is simple to set up with a simple menu and one knob with switch for navigation. The 4th channel can be set to generate Chords and polyphonic note streams for ART Polyphonic oscillators.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 38mA / -12V 4mA

ATX1: a classic all analogue saw VCO core with 3 switchable modes, ART, 1V/Oct, LFO and is recommended as the basic building block for ART systems. It is designed for patching analogue polyphonic synths from discrete modules or multi-mono patches in ART mode. When using ART the ATX1 takes care of the tuning including accounting for temperature changes. In 1V/Oct mode the ATX1 runs as a standard old school modular VCO. LFO mode drops the frequency range and is great for patching vibrato to other ATX1s among other things. The ATX1 outputs variable waveshapes with manual or CV control. Classic FM, PWM and hard sync are provided. A dedicated Gate Out in ART mode manages the voice envelopes or any modulation synced to that voice. TipTop consider the ATX1 the best sounding analogue VCO they have ever created.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 105mA / -12V 33mA

MIX7 is a seven channel analogue summing mixer module for Eurorack. It is designed for summing any of the different types of signals you'll find in a modular system: Audio, CV, Triggers, or Gate.

MIX7 gives ability to sweeten your mix with more headroom using the power of low noise analogue summing. A compact 3HP Eurorack utility module, MIX7 is an attractive mixing addition to any rig, especially with the ability to also combine rhythms, note patterns or CV automations from different control sources. The main output of one section can be connected to the input of another MIX7 to create larger mixing groups and complex signal routes inside your modular.

The MIX7 summing mixing circuit is built with low-noise operational amplifiers, giving it an excellent sound quality for mixing audio, the beautiful texture of classic analogue mixing with plenty of headroom to handle hot modular signals, and the versatility to sum non-audio signals in your system to open up new creative possibilities.

Each input is labelled with a number of dots, 1-7, yellow for input and green for output. The module matches Tiptop's system look with clean white faceplate styling.

At the back of the module is a user-configurable jumper allowing users to configure the MIX7 for either unity gain (OUT = IN) or give increased headroom (OUT = 0.4IN) for use with hot audio signals, which makes it a great pairing for Tiptop Audio percussive modules. A peak indicator light on the front panel warns the user of even the slightest audio clipping in the mix, helping to keep all the incoming sound sources at their full original quality.

Size: 3HP - Depth: 43mm - Power: +12V 25ma / -12V 20ma

CONTROL PATH is an all in one voice dynamics module that helps build full voices quickly. It contains two analogue envelopes with velocity cv, and one VCA. In a typical voice patch the left envelope will control a filter and the right envelope will be the voice VCA. Velocity control is provided for each envelope and delay front panel trimmers are used to compensate for any miss match between incoming gate signal and velocity CV timings. Envelope cv outs are 0-5V, Velocity cv ins are 0-5V.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 50mA / -12V 55mA

The Z2040 is TipTop's redesign of the most famous analogue filter from the polysynths of the 80's and features Tiptop Audio's signature lush, big, and creamy sound. Its frequency sweeps make thick bass lines and leads with great dynamics. When modulated with audio frequencies through its various inputs, the Z2040 gets quite colourful and is capable of creating many new sounds and textures as the forces of the incoming waves and their harmonics blend through the filter's non-linear circuit. When set with Resonance feedback fully up, the Z2040 transforms into a pure sine-core VC-Oscillator, great for making snappy percussive elements and whistling sounds.

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

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

Size: 8HP - Depth: 42mm - Power: +12V 20ma / -12V 20ma

Notes: A serious bargain for anyone putting together a modular system, TipTop bundle three VCOs and the Octopus controller with their mixer, filter, dual envelopes and VCA. Great value.

Supplier's Notes:
The S2 is a promotional bundle that TipTop is offering to users, providing a 33% savings to get you started with ART. With these bundles, TipTop have included an incredible voice: the big, beefy 3 VCO stack. The bundles come in two options: Bundle S1, which uses the ART V/OCT Quantizer as a controller, and Bundle S2, which uses Octopus as a controller. In addition to the controllers, there are three ATX1 analogue oscillators, MIX7 for mixing them with plenty of headroom, and followed by TipTop's beloved 4-pole Z2040 filter that has been with them since day one; it just sounds so good. Finally, we end up with Control Path dual envelope plus VCA dynamics modules. This special price is time limited and while supplies last.

OCTOPUS is a powerhouse ART controller that takes MIDI in via the USB or DIN connector and outputs 8 ART channels with 8 velocity CV plus 8 drum triggers. Together with the ART oscillators the OCTOPUS provide unprecedented simplicity connecting the modular to your computer sequencers, hardware midi sequencers and keyboards. Each ART channel can play polyphonic notes, monophonic notes or create multi-channel polyphony using an internal voice manager. All together OCTOPUS can play more voices and notes from a single controller than ever was possible in modular. Using ART high speed control signals OCTOPUS can maintain low jitter for tight timing. OCTOPUS is TipTop's first ART controller with more to follow, please select between Octopus or ART V/Oct Quantizer to get started with ART. Please note, OCTOPUS is not a 1V/Oct midi to CV and should not be confused as one.

Size: 18HP - Depth: 40mm / 1.5"
Power: +12V 140mA / -12V 100mA

ATX1: a classic all analogue saw VCO core with 3 switchable modes, ART, 1V/Oct, LFO and is recommended as the basic building block for ART systems. It is designed for patching analogue polyphonic synths from discrete modules or multi-mono patches in ART mode. When using ART the ATX1 takes care of the tuning including accounting for temperature changes. In 1V/Oct mode the ATX1 runs as a standard old school modular VCO. LFO mode drops the frequency range and is great for patching vibrato to other ATX1s among other things. The ATX1 outputs variable waveshapes with manual or CV control. Classic FM, PWM and hard sync are provided. A dedicated Gate Out in ART mode manages the voice envelopes or any modulation synced to that voice. TipTop consider the ATX1 the best sounding analogue VCO they have ever created.

Size: 8HP - Depth: 40mm / 1.5"
Power: +12V 105mA / -12V 33mA

MIX7 is a seven channel analogue summing mixer module for Eurorack. It is designed for summing any of the different types of signals you'll find in a modular system: Audio, CV, Triggers, or Gate.

MIX7 gives ability to sweeten your mix with more headroom using the power of low noise analogue summing. A compact 3HP Eurorack utility module, MIX7 is an attractive mixing addition to any rig, especially with the ability to also combine rhythms, note patterns or CV automations from different control sources. The main output of one section can be connected to the input of another MIX7 to create larger mixing groups and complex signal routes inside your modular.

The MIX7 summing mixing circuit is built with low-noise operational amplifiers, giving it an excellent sound quality for mixing audio, the beautiful texture of classic analogue mixing with plenty of headroom to handle hot modular signals, and the versatility to sum non-audio signals in your system to open up new creative possibilities.
Each input is labelled with a number of dots, 1-7, yellow for input and green for output. The module matches Tiptop's system look with clean white faceplate styling.

At the back of the module is a user-configurable jumper allowing users to configure the MIX7 for either unity gain (OUT = IN) or give increased headroom (OUT = 0.4IN) for use with hot audio signals, which makes it a great pairing for Tiptop Audio percussive modules. A peak indicator light on the front panel warns the user of even the slightest audio clipping in the mix, helping to keep all the incoming sound sources at their full original quality.

Size: 3HP - Depth: 43mm - Power: +12V 25ma / -12V 20ma

CONTROL PATH is an all in one voice dynamics module that helps build full voices quickly. It contains two analogue envelopes with velocity cv, and one VCA. In a typical voice patch the left envelope will control a filter and the right envelope will be the voice VCA. Velocity control is provided for each envelope and delay front panel trimmers are used to compensate for any miss match between incoming gate signal and velocity CV timings. Envelope cv outs are 0-5V, Velocity cv ins are 0-5V.
Size: 8HP - Depth: 40mm / 1.5"

Power: +12V 50mA / -12V 55mA

The Z2040 is TipTop#s redesign of the most famous analog filter from the polysynths of the 80's and features Tiptop Audio's signature lush, big, and creamy sound. Its frequency sweeps make thick bass lines and leads with great dynamics. When modulated with audio frequencies through its various inputs, the Z2040 gets quite colorful and is capable of creating many new sounds and textures as the forces of the incoming waves and their harmonics blend through the filter's non-linear circuit. When set with Resonance feedback fully up, the Z2040 transforms into a pure sine-core VC-Oscillator, great for making snappy percussive elements and whistling sounds.

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

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

Size: 8HP - Depth: 42mm - Power: +12V 20ma / -12V 20ma

Notes: Stereo oscillator with wavemorphing, folding, and PM

"We may have just gotten the perfect Noise Engineering oscillator - in the most compact package possible." -- CDM Blog

Sinc Legio is a simple oscillator with some tricks up its proverbial sleeve. If you need some basic waveforms, Sinc has you covered - and it makes it easy to spice up those waveforms with phase modulation, wavefolding, or hard sync. Sinc pairs well with other oscillators in your system, too: hard-sync and stereo PM inputs make complex sounds easy to patch. Combine broad-ranging timbral parameters with a vintage-inspired chorus, and you're well on your way to stereo sound-design heaven in just 6 HP.

Sinc's multiple algorithms give a world of timbral possibility at the flip of a switch. Phase modulation, plucky FM, and bright and heavy modulation await. And on top of that, Noise Engineering have added a wavefolder to it. Shape and fold to your heart's content in Fold mode.

Not only is Sinc an incredible oscillator on its own, it's also part of the Legio platform. Use the included USB cable to connect to the Customer Portal and swap the firmware to any other Legio firmware, completely free, at any time. Let that sinc in!

6HP Eurorack
+12v: 140mA
-12v: 22mA
Sinc - from Latin: "treasure"

Legio - from Latin: "legion, army"

"A lot of treasure"

Notes: Stereo oscillator with wavemorphing, folding, and PM

"We may have just gotten the perfect Noise Engineering oscillator - in the most compact package possible." -- CDM Blog

Sinc Legio is a simple oscillator with some tricks up its proverbial sleeve. If you need some basic waveforms, Sinc has you covered - and it makes it easy to spice up those waveforms with phase modulation, wavefolding, or hard sync. Sinc pairs well with other oscillators in your system, too: hard-sync and stereo PM inputs make complex sounds easy to patch. Combine broad-ranging timbral parameters with a vintage-inspired chorus, and you're well on your way to stereo sound-design heaven in just 6 HP.

Sinc's multiple algorithms give a world of timbral possibility at the flip of a switch. Phase modulation, plucky FM, and bright and heavy modulation await. And on top of that, Noise Engineering have added a wavefolder to it. Shape and fold to your heart's content in Fold mode.

Not only is Sinc an incredible oscillator on its own, it's also part of the Legio platform. Use the included USB cable to connect to the Customer Portal and swap the firmware to any other Legio firmware, completely free, at any time. Let that sinc in!

Notes: Expander for the DROID with 4 pots and 2 buttons

The P4B2 controller provides 4 potentiometers and 2 push buttons for free assignment to any of the DROID's parameters.

Each potentiometer outputs a value between 0 and 1 and can be used for controlling every aspect of the functions of your DROID patch (configuration), such as the speed or depth of an LFO, the pitch of a sequencer step, all aspects of an envelope, clock division and multiplication and much much more.

The buttons can be used as momentary or toggle buttons, if you like with three or four states. Or you can group several buttons together so that they work like "radio buttons". Buttons can be used for various tasks like switching between different behaviours, selecting wave forms, switching steps of a step sequencer, changing the root or scale of a quantizer or chord generator and much more. Also you can use buttons for overlaying a single pots with multiple switchable functions.

You can attach up to 16 controllers to one DROID master. This is done with a 6 pin ribbon cable. This module gets its power from the DROID master.

Besides the P4B2 there are many other types of controllers for the DROID.

Dimensions
5 HP
25 mm deep

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

Notes: TRS Split - CV/Audio signal distributor

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

It contains 3 identical sections set up as following:

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

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

Use cases:

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

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

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

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

Switching sides

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

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

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

Stereo multiple setup

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

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

Dimensions
2 HP
22 mm deep

Current Draw
Module does not draw current