Synth modules

Notes: Scales is an 8hp dual-channel note quantizer and step sequencer. Fundamentally, it takes an input voltage, quantizes it to notes in a user-defined scale, and sends that quantized voltage to an output, where you can use it as a melodic pitch source for oscillators or any other module that expects to see discreet note values at its input.

Scales goes far beyond the fundamental, allowing you unprecedented control of the pitches and intervals hiding inside your control voltages; turn LFO's into arpeggiators; random voltages into harmonic counterpoint; and unquantized external CV sequencers into chromatically tuned note sequencers.

Quantization can be locked to an incoming trigger. There are a number of trigger output options as well, ranging from no triggering (good for pitch shifting drones); through triggers that sync with either of the two outputs (or both); to a trigger or gate transmitted in sync with one sent to the module's TRIG input.

Shift:

Scales features two independent outputs, enabling you to create shifted harmonic intervals within your chosen scale using only a single pitch input. Using the SHIFT input you can modulate changes on OUT A and/or OUT B.

You can also use the shift input to switch between scales or to change the root of any existing scale pattern or split Scales into two quantizers - each conforming to a common scale, but fed entirely different voltage sources.

Sequence:

Scales also features a 128-step SH-101 style step sequencer (complete with storage for up to 35 fully programmable patterns) - allowing you to feed OUT B with sequenced notes and rhythm patterns, while OUT A continues to function as a standard pitch quantizer for external voltages. You can even sync the sequencer to quantizer events on OUT A.

Notes: Module A-156 is a Dual Control Voltage Quantizer. A quantizer converts a continuous control voltage in the range 0...+10V into a stepped output voltage in the same voltage range (i.e. only certain voltages occur). Normally 1/12 V steps are used to obtain semitone steps. Quantizer 2 of the A-156 allows has more sophisticated quantizing modes like major scale (i.e. only voltages corresponding to the major scale), minor scale, major chord, minor chord, fundamental + fifth and addition of seventh or sixth when chords are selected. Only those voltages appear at the CV output which comply with the selection rule (e.g. minor chord with seventh). The mode setting of quantizer 2 is done with 3 switches (1-0-1 type with middle position). From the factory quantizer 1 is working in the semitone mode. But there is a jumper on the pc board that can be changed so that even quantizer 1 uses the same scale as quantizer 2.

For each quantizer the following in/outputs are available:

- Control voltage input (CV In): The input for the continuous voltage to be quantized
- Control voltage output (CV Out): The output of the quantized voltage
- Trigger input (Trig.In): If this jack is left open the quantizer is working permanently. If a rectangle voltage is applied quantisation happens only at the rising edge of the signal (e.g. from an LFO or MIDI-to-Sync interface). Thus the quantizing can be synchronized with other events
- Trigger output (Trig.Out): Whenever a quantisation happens (i.e. a new voltage is generated at the CV Out) a positive pulse occurs at this output. It may be used to trigger an envelope generator (ADSR) or for triggering other modules (sequential switch A-151, trigger divider/sequencer A-160/161, trigger delay A-162, ...). If none of these functions are used the jack is left open

On top of that the A-156 is provided with a common transpose CV input having an additive effect on both quantizers. This input is quantized in semitone steps. A typical application is the transposition of a sequence generated by the A-155 by a second control voltage (e.g. coming from the MIDI-CV interface A-190).

Typical applications:

- Quantizing the CV sequence generated by an A-155 (semitone, only major scale, only minor scale and so on)
- Quantizing the voltage coming from the Trautonium Manual / Ribbon Controller A-198, Theremin A-178 or Light-to-CV module A-179 to get accurate semitones or major/minor scale tones
- Arpeggio-like effects with LFO, random, noise, envelope generators as CV sources (for negative or symmetrical voltages an offset must be added, e.g. with the offset/attenuator module A-129-3, to obtain positive voltages for the A-156 input)

Notes: Erica Pico Quant is advanced CV quantizer with some unique features - quarter tone accuracy and the web-based interface for creating user generated scales.

- 8 preset scales
- Web based interface for user generated and extra preset scales
- Microtonal quarter tone scales
- Adjustable tolerance
- Adjustable CV glide between notes
- Clocked and independent quantization

Dimensions
3 HP
35 mm deep

Current Draw
25 mA +12V
6 mA -12V

Notes: Clever four-channel utility module designed to make it easier to achieve perfect oscillator tracking and transpose CV signals. Also includes some neat quantising and portamento features.

Supplier notes:
The CalTrans solves issues encountered when playing tonal music with a modular system: tracking problems, curves unrelated to Volt per octave ratio, limited octave range, cumbersome transpose, ...

The CalTrans corrects and expands the range of troublesome VCOs and brings V/Oct tracking to anything that oscillates.

Besides calibration, the CalTrans offers live play features. Each channel can be quantized and any combination of them transposed jointly.

A pair of rotary encoders with detent allow an precise selection of octaves and semitones.

VCOs whose tracking doesn't go high enough to follow the leader will see their pitch repositioned in their highest possible octave so that the global harmony is unaffected.

You can add a pinch of portamento and glissando to each channel and save the whole in user presets.

Notes: Module A-156 is a Dual Control Voltage Quantizer. A quantizer converts a continuous control voltage in the range 0...+10V into a stepped output voltage in the same voltage range (i.e. only certain voltages occur). Normally 1/12 V steps are used to obtain semitone steps. Quantizer 2 of the A-156 allows has more sophisticated quantizing modes like major scale (i.e. only voltages corresponding to the major scale), minor scale, major chord, minor chord, fundamental + fifth and addition of seventh or sixth when chords are selected. Only those voltages appear at the CV output which comply with the selection rule (e.g. minor chord with seventh). The mode setting of quantizer 2 is done with 3 switches (1-0-1 type with middle position). From the factory quantizer 1 is working in the semitone mode. But there is a jumper on the pc board that can be changed so that even quantizer 1 uses the same scale as quantizer 2.

For each quantizer the following in/outputs are available:

- Control voltage input (CV In): The input for the continuous voltage to be quantized
- Control voltage output (CV Out): The output of the quantized voltage
- Trigger input (Trig.In): If this jack is left open the quantizer is working permanently. If a rectangle voltage is applied quantisation happens only at the rising edge of the signal (e.g. from an LFO or MIDI-to-Sync interface). Thus the quantizing can be synchronized with other events
- Trigger output (Trig.Out): Whenever a quantisation happens (i.e. a new voltage is generated at the CV Out) a positive pulse occurs at this output. It may be used to trigger an envelope generator (ADSR) or for triggering other modules (sequential switch A-151, trigger divider/sequencer A-160/161, trigger delay A-162, ...). If none of these functions are used the jack is left open

On top of that the A-156 is provided with a common transpose CV input having an additive effect on both quantizers. This input is quantized in semitone steps. A typical application is the transposition of a sequence generated by the A-155 by a second control voltage (e.g. coming from the MIDI-CV interface A-190).

Typical applications:

- Quantizing the CV sequence generated by an A-155 (semitone, only major scale, only minor scale and so on)
- Quantizing the voltage coming from the Trautonium Manual / Ribbon Controller A-198, Theremin A-178 or Light-to-CV module A-179 to get accurate semitones or major/minor scale tones
- Arpeggio-like effects with LFO, random, noise, envelope generators as CV sources (for negative or symmetrical voltages an offset must be added, e.g. with the offset/attenuator module A-129-3, to obtain positive voltages for the A-156 input)

Width: 8 HP / 40.3 mm
Depth: 55 mm (measured from the rear side of the front panel)
Current: +50mA (+12V) / -10mA (-12V)

Notes: *** Firmware update- February 2025 ***

Hermod+OS2.00

Again, a major firmware upgrade packed with exciting new features. This update offers a wealth of new creative tools and improvements.

Audio tuner

4 internal automation per track - MOD, MOD2, MOD3, MOD4

Automation per track : 7 (4x modulations + pitchbend + aftertouch + sustain

***

Parisian sequencer specialists Squarp turn up the goods once again with the updated Hermod+ module. Huge sequencing power for both MIDI and CV, with a range of monophonic and polyphonic features to get the most out of your sound sources.

Supplier's Notes:

Hermod+ adds so much to your system.

Based on the established Hermod workflow and keeping the same form factor, Hermod+ offers a lot of new features, and a refined, more playful interface with extended connectivity.

Record CV/Gate, MIDI notes and modulations on 16 polyphonic tracks. Compose melodic variations across 16 patterns per track, and take advantage of the advanced step sequencer and the new effects to gain efficiency and creativity in studio and on stage.

8 CV/Gate and 8 MIDI tracks

Hermod+ offers 8 CV/Gate tracks (that can also output midi) and adds 8 dedicated MIDI tracks for your extra gear.

CV inputs

Record, edit and loop analogue modulations or CV/Gate using the 4 CV inputs, and use them to synchronize Hermod+ to an incoming analogue clock.

Record live

With an improved resolution of 96ppqn, record and playback your CV/Gate or MIDI performance seamlessly without any noticeable note shifting, for up to 16 bars per pattern.

Polyphonic step composer

The revisited piano-roll now allows intuitive polyphonic editing. Edit or program chords, melodies and rhythms using the 16 built-in pads for a quick and playful composition process.

Automation

Program or record automated modulations (CV and/or MIDI) for each track, in addition to midi aftertouch, pitchbend and sustain voices.

Dynamic effects

Add up to 8 real-time CV/MIDI effects per track. All effects are non-destructive, so they can be edited at any given time to add some variations to a performance.

Advanced ModMatrix

Use the modulation matrix to link incoming CV or CC messages to effect parameters. Each modulations can be attenuverted and offsetted.

Playable song mode

Build your song structures using up to 16 sequences per project. Play them into a predefined order or launch them manually for improvised performances.

Synchronized project swap

Quickly save and recall your projects on the SD card. Project loading can now be done in sync, without interrupting your performance.

Boosted connectivity.

The missing link between your eurorack system and the rest of your studio.

Editing made simple.

Fluid workflow with a redesigned Step mode

Step mode is where you can edit notes, modulations and gate events. Hermod+ offers quick ways to write melodies and rhythms. Zoom in and out to visualize and edit portions of your track precisely and break free from rigid grid sequencing.

The re-designed piano roll editor makes the vertical and horizontal scrolling easier and faster, while the new "row edit" feature allows for quick chords and drum patterns programming.

Create modulation curves by programming them directly on Hermod+ or by recording incoming signals, and send those curves via CV or MIDI to other parts of your system.

Versatile interface.

Polymorphic layouts for perfect integration

Hermod+ can adapt its voice layout to any patching scenario. Depending on your needs, any track can become a modulation output, a monophonic CV/Gate track, a polyphonic MIDI track...

For a track of CV/Gate note + velocity + aftertouch, or for a polyphonic CV/Gate track, simply group voices using the desired layout.

Take advantage of the 8 dedicated MIDI tracks, that can record and be programmed independently from the 8 CV/Gate tracks. Up to 8 real-time effects per track with creative parameters and generative features. Hermod+ is the canvas, the paint and the brush of your setup.

Specifications

Sequencer
Tracks: 8 CV/Gate + 8 MIDI
Patterns: 16 per track
Recording resolution: 96ppqn
Track length: 1/16 note to 16 bars
Automation per patterns: modulation + pitchbend + aftertouch + sustain

Projects
Amount of projects: unlimited
Tempo: 10 to 280 BPM
Global transpose track: yes
Double project architecture: yes
Song chain length: 64 sequences

Piano roll
Zoom min: /4 (1 step = 1/4 note = 1 beat)
Zoom max: X8 (1 step = 1/128 note)
Note/gate width: 1/32 (1/512 note) to 8 bars
Maximum polyphony per step: 24
Row edit (polyphony editing): yes
Note pitch: C0 to C10
Note velocity: 0 to 127

Synchonization clock speed
Max input rate: 1/96 = 24ppqn
Max output rate: 1/96 = 24ppqn

Input
MIDI: TRS type A + USB host + USB device
CV: 4x [-5V to +5V]

Output
MIDI: TRS (type A) + USB host + USB device
CV: 8x [-5V to +5V]
GATE: 8x [0V / +5V]
Dedicated Clock port
Dedicated Reset port for transport

Power
Note: the use of your eurorack +5V rail is configurable with a switch on the back of Hermod+
Consumption (using +5V rail): -12V 20mA, +12V 20mA, +5V 820mA (add up to +500mA when attaching a controller on USB host)
Consumption (not using +5V rail): -12V 20mA, +12V 400mA (add up to +220mA when attaching a controller on USB host)

Hardware
Width: 26HP
Depth: 20mm
Weight: 285gr (0.63lbs)
CV inputs resolution: 16-bit
CV outputs resolution: 16-bit
Display: OLED 58 x 16mm
SD card: microSD high speed (provided)
CPU: ARM 480MHz

Notes: This is the third generation of Intellijel's much loved Korgasmatron filter designed in collaboration with David G. Dixon. The Morgasmatron features two completely independent six-mode filters (labelled "A" and "B") - each with its own mode-select knob, input, output, cutoff, resonance, Q-drive and gain control. Each filter has a pair of CV inputs (one with a built-in attenuator and the other with a built-in attenuverter) for modulating cut-off, and another CV input for modulating resonance. Both filters self-oscillate at maximum Q, and produce pitched sine waves that track the two separate 1V/OCT inputs.

You can use the two filters independently of one another, or you can use them together (in either a series or parallel connection) and smoothly crossfade between them using either the XFADE knob or the XFADE CV input and built-in attenuverter. You can flip the DRY switches to instantly bypass either or both filters; invert the phase of Filter B; or overdrive Filter A by switching on the new Overdrive circuit. A MIX output provides (as you might suspect) a mixed output of the two filters.

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: Ornament & Crime for 1U Intellijel format

This is functionally identical to the 3U version, just re-oriented to fit in 1U racks. Ornament & Crime is designed by mxmxmx.

The apps currently available in Ornament & Crime:

CopierMaschine is an enhanced version of the original quantising digital emulation of a four stage analogue shift register (ASR).

Harrington 1200 provides basic neo-Riemannian Tonnetz transformations of triadic chords, triggered by the digital (gate/trigger) inputs.

Automatonnetz combines Tonnetz transforms with a "vector" sequencer - it can be both a chord sequencer and a melody sequencer, but not of the usual kind.

Quantermain is a quad pitch quantiser for external voltages, with editable scales; it can do clocked (trigger-driven) quantising, or continuous quantising, with a latency of under 100 microseconds; it also features quad Turing Machines, May-Verhulst logistic maps or byte beats as optional, semi-random, internally generated CV sources.

Meta-Q is a dual-channel quantiser, similar to Quantermain, but also offering scale and note mask sequencing.

Quadraturia is a wavetable quadrature LFO, based on the "Easter egg" in the Mutable Instruments Frames module.

Low-rents is a dual Lorenz and Rossler (strange attractor) modulation generator, partially based on the "Easter egg" in the Mutable Instruments Streams module.

Piqued is a quad voltage-controlled envelope generator, based on envelope generator code from the Mutable Instruments Peaks module, but extending it with voltage control, additional envelope types, including re-triggering (looping) envelopes, additional segment shapes, adjustable trigger delays, and a unique Euclidean "trigger filter" which turns the app into a Euclidean rhythm generator which can output envelopes, not just gate or trigger pulses.

Sequins is a dual-channel step sequencer offering 4 "tracks" of up to 16 steps each; tracks can themselves be sequenced.

Dialectic Ping Pong is a quad bouncing ball envelope generator, based on a hidden mode of the Mutable Instruments Peaks module.

Viznutcracker, sweet! is a quad "byte beat" equation generator, which can be used as an audio source to generate curious but often interesting 8-bit noises and tunes, or which can be clocked by an external source to produce "byte beat" control voltage sequences. "Byte beats" were first described in 2011 by viznut (aka Ville-Matias Heikkila).

Acid Curds is both a chord quantiser (sometimes called a "harmonic quantiser" for external pitch voltages), and a chord progression sequencer.

References is an utility app that outputs specific reference voltages on each channel to help tune or calibrate VCOs and other modules. It also includes a high-precision frequency meter and note tuner, a high-precision BPM (beats per minute) tempo meter, and a closed-loop calibration mode.

Width: 30hp
12V: 85mA
-12V: 10mA

Notes: The QUANTIZER takes four different CV inputs and processes them in a way that the CV values "snap" to the exact values so that oscillators controlled by the outputs of the module play the notes of a selected musical scale. With an encoder one of 16 scales can be selected and is displayed in a text display,

There are 4 independent channels that are quantized to the same selected scale.

As an additional feature, the module provides a trigger signal for each channel on every change on the output CV.

Finally, with a switch the scale selection can be "frozen" so there is no accidental change possible.

There are 4 independent channels that are quantized to the same selected scale.

Module power consumption: 15 mA

Inputs
CV 1 - accept CV for channel 1 of the quantizer
CV 2 - accept CV for channel 2 of the quantizer
CV 3 - accept CV for channel 3 of the quantizer
CV 4 - accept CV for channel 4 of the quantizer
Outputs
CV 1 - Quantized CV from channel 1 of the quantizer
CV 2 - Quantized CV from channel 2 of the quantizer
CV 3 - Quantized CV from channel 3 of the quantizer
CV 4 - Quantized CV from channel 4 of the quantizer
TRIG 1 - Gate signal on change of CV from channel 1 of the quantizer
TRIG 2 - Gate signal on change of CV from channel 2 of the quantizer
TRIG 3 - Gate signal on change of CV from channel 3 of the quantizer
TRIG 4 - Gate signal on change of CV from channel 4 of the quantizer
MULT - unbuffered multiple, unconnected from the module's circuitry
B. CV - CV signal from MIDI
Please note:

The notation of the outputs is slightly different on the panel than indicated here. There are two rows of identical outputs, side by side. For each output-trigger there is an activity LED, indicating a change in quantized CV.

Controls
SCALE Knob - selects the current scale. 16 scales are available, the selected scale will be displayed in the small display to the right of this knob
LOCK Switch - prevents accidental changes of the selected scale when activated
OFFSET Knob - Select from up to 12 notes from the well-tempered scale as base-value, depending on the scale selected. All left would be equivalent to a key of C
Please note:

Scale selection directly takes place when the SCALE Knob is turned, clicking it has no specific effect.

Available SCALES, as indicated on the display, are as follows:

Minor (e.g. equivalent to A-B-C-D-E-F-G in ‘A minor’)
Major (e.g. equivalent to C-D-E-F-G-A-B in ‘C major’)
Dorian (e.g. equivalent to C-D-Eb-F-G-A-Bb in ‘C Dorian mode’)
Phrygian (e.g. equivalent to C-Db-Eb-F-G-Ab-Bb in ‘C Phrygian mode’)
Lydian (e.g. equivalent to C-D-E-F#-G-A-B in ‘C Lydian mode’ )
Mixolyd [Mixolydian] (e.g. equivalent to C-D-E-F-G-A-Bb in ‘C Mixolydian mode’ )
Locrian (e.g. equivalent to C-Db-Eb-F-Gb-Ab-Bb in ‘C Locrian mode’)
Gypsy (e.g. equivalent to C-D-Eb-F#-G-Ab-B in ‘C Hungarian minor scale’ )
Whole (equivalent to C-D-E-F#-G#-A# or B-Db-Eb-F-G-A as ‘Whole tone scales’)
Pent Min [Pentatonic Minor] (e.g. equivalent to C-Eb-F-G-Bb in ‘C Minor pentatonic’)
Pent Maj [Pentatonic Major] (e.g. equivalent to C-D-E-G-A in ‘C Major pentatonic’)
1-3-5 (e.g. equivalent to C-E-G in ‘C’)
1-3-4 (e.g. equivalent to C-E-F in ‘C’)
Fifth (e.g. equivalent to C-G in ‘C’)
Octave (e.g. equivalent to C in ‘C’)
Chromat (The 12 welltempered notes of the chromatic scale)

Notes: 4 Voices of Quantization with a 10 octave range.

Mechanical:

Format: Eurorack
Width: 10 HP
Depth: 5.2 cm

Control Voltage I/O:
CV inputs: i 5v
CV outputs: +10v

Electrical:
Max current: +140mA/-70mA
Bus Board Cable: 8 × 2 IDC (Doepfer style) connector

Notes: *** Free software update available as a free download, along with updated documentation, at the Mob of Emus product page on the Rossum Electro-Music website***

A lot to unpack here. Six-channel multipurpose oscillator/noise source/modulation generator with quantisation, trigger generators and even more. Seriously powerful all-round digital goodness.

Supplier's Notes:
Mob of Emus is a powerful music and sound design tool that packs an enormous amount of creative power into an amazingly compact 16HP module.

Mob of Emus gives you six channels of oscillators, noise sources, cyclical and 1-shot modulators (including LFOs, envelopes, and various other shapes), sample and hold waveshapes, slow random modulators, triggers, rhythm patterns, and quantization (of both internal and external signals) in pretty much any combination (well, any combination of six channels, anyway).

In addition to being able to independently program the function of each individual channel, Mob of Emus' Hex Mode provides a macro control layer that allows you to control all of its channels simultaneously (while maintaining the relationships of each channel's independent programming).

What's more, Mob of Emus' "harmonic" control structure makes it extremely easy to combine its oscillators into rich additive timbres, to combine its LFOs into stacked harmonic low frequency modulation waves, and to create modulation sources and triggers with intricate polyrhythmic patterns.

With an external trigger input, six CV inputs that can operate in six different control modes, six independent outputs, and an assignable mix output, Mob of Emus can operate as the heart of an almost unlimited variety of patches. And its 8 real-time controls will give you immediate hands-on access to a channel's (or all six channels') key parameters, inviting (and rewarding) exploration and improvisation.

Mob of Emus features include:

Six channels that can function independently or can be further controlled by a Hex Mode macro layer that lets you control all six simultaneously. Channels can be:
Wide-range digital oscillators
Noise sources
Cyclical and 1-shot modulators (including LFOs, envelopes, and various other shapes)
Sample and hold waveshapes
Slow random modulators
Triggers
Rhythm patterns
Quantizers (of both internal and external(!) signals)
Six CV inputs that can function in six different control modes
Eight real-time controls for immediate access to key channel parameters
Six individual channel outputs and an assignable mix output
The ability to store and recall 12 user presets
And much more.

Mob of Emus is 16HP wide and 25mm deep.

Power requirements (max): 130mA +12V, 25mA -12V. Reverse polarity protected.

As of March 2021, there has been a been a small bug fix to the recent software update for Mob of Emus.

The update fixes a bug where holding the Channel Selector Buttons for a short time to select a single channel and deselect any others was not working correctly.

The update fixes a bug where some Hex Mode parameters were not ignored when Hex Mode was set to off.

The update introduces a feature allowing users to double-click and hold the Hex button to reset all Hex Mode parameters and set Hex Mode to on.

Rossum Electro-Music made a change to the behavior of the LEDS when using the utility 'Display Software Revision'

Notes: Tesseract's step sequencer is designed for hands-on playability, configured as a 16-step or dual 8-step design. Unique features include a 'drunk' mode to add variety to your sequences.

Supplier notes:
Step Fader mkII is a 'hands on' eurorack dual sequencer, featuring two 8 step lines or one with 16 steps, plus quantizer, slew limiter, internal clock generator, CV inputs to control any parameter and more...

Each sequencer has independent settings for the play mode, start point, size (length), clock divider (or step repeat), transposition and duty cycle.
There are 16 presets to store & recall all the above settings plus CV input assignment, scale, tempo, step repeat and clock out ones.
The 2 channels of the quantizer can be used for processing external signals, same for the slew limiters.
The 16 illuminated buttons can be used to set several parameters, even to play the sequencer as a keyboard.

There are 3 MAIN SETUPS:
DUAL (2 totally independent 8 step sequencers)
PARALLEL (one sequencer with 2 rows of CV and 8 steps)
SINGLE (one sequencer with 16 steps)

There are also these PLAY MODES:
Normal
Reverse
Pendulum
Drunk
Random

Each sequencer features:
Clock input (clock input 1 is normalised to clock input 2)
Clock output
Reset input
Gate/Trigger output
Slew limiter output (unquantized)
V/OCT output (quantized)

Additionally, there are 2 summing outputs:
Gate/Trigger 1+2 (OR output of both G/T)
CV 1+2 (sum of both slew limiters)

Features 2 CV inputs with offset pots. Assignable parameters are mode, start, size, clock divider, key (the position of the sequencer is controlled by CV), transposition and duty cycle.

Dimensions: 26 HP

Current Draw:
85 mA +12V
36 mA -12V

Notes: CONTROL FORGE's core functionality is drawn from the E-mu Morpheus's insanely powerful (but hard to program on a two-line display) Function Generators. But now expanded into a supremely flexible modulation source encompassing elaborate one-shot contours, evolving cyclical patterns and sequences of arbitrary length and complexity.

- At its most basic, it's an 8-segment function generator with variable time and target voltage level for each segment.
- Each segment's level can be defined either absolutely or relative to the ending level of the previous stage and can optionally be quantized to the nearest 1/12 volt.
- Each segment's level may have a user defined range of randomness of either linear or gaussian distribution.
- A new 'Tempo Mode' lets you specify each segment's length in musical note values relative to a tempo set in BPM.
- The time scale may be modulated under CV control or manually via the encoder during runtime.
There are 67 different transition shapes between segments (indicated graphically on the display during selection), from linear and exponential shapes to various flavours of random, chaotic, and many more that don't lend themselves to one-word descriptions, including the ability to pass CVs directly through to the output for individual segments.
- Also included are 'DC' shapes that allow the module to be used as a sequencer with all of the module's available programmability. When combined with the Preset Sequencer described below, sequences can be hundreds of steps long and modified in real time manually or by CVs.
- Each segment may optionally have a conditional jump mode that results in a jump to another selected stage if a particular condition is met. E.g., a CV being above or below the selected conditional value, the presence or lack of a gate or logic high at their respective inputs, rising or falling edges at the inputs, etc. So, in addition to one-shot shapes, extremely elaborate cyclical patterns can be programmed that evolve based on the various conditional inputs.
- Control Forge's AutoChain functionality allows the creation of two very specific kinds of multi-preset patterns: A multi-preset retriggerable pattern (like a long syncable LFO), and a multi-preset 'envelope-like' pattern with retriggerability, an optional sustain section, and a 'release' section that's jumped to on gate fall.
- Two independent triggers can be programmed to fire in response to a variety of events and can be used to affect either CONTROL FORGE itself or external modules.
- 500 presets can be saved and recalled
- A preset sequencer allows stepping through up to 200 user-defined series of presets under trigger, clock or manual control. This allows contours and sequences of almost unlimited length and complexity.
- All presets and sequences can be transferred to any number of Satellite modules, which can then operate as stand-alone modulation sources, completely independent of the Control Forge.
- Like all Rossum Electro-Music digital modules, all parameters are available for adjustment with a single button press. No menu diving.

Notes: For Intellijel's 1U rack format, Mosaic serve up a handy quantiser with a clever built-in arpeggiator, meaning you can generate melodic sequences from within the module.

Supplier's Notes:
Craft melodic sequences out of random voltage, LFOs, and more with the Mosaic Quantizer. Don't have a voltage source? Enter Arpeggiator mode to create a sequence from your current scale or note pattern, and modify it on the fly using the chromatic note interface. Pull musicality out of the unknown with Quantizer!

Tech Specs:
Width: 20HP
Depth: 38mm
Front Panel: Intellijel format, Pulp Logic replacement panels available here.

Notes: Building on the familiar dual VCO core arrangement of Carrier and Modulator, Mindphaser is a complex oscillator which departs from this bit of ancestral DNA with a modern toolkit focused on searing, phase-modulated leads, percussive basslines and other-worldly effects!

A diverse palette of intermodulation and harmonic experimentation is offered through the Modulation Bus, its unique Waveshaper and the dedicated Thru-zero Phase Modulation Bus. An intuitive interface provides colour-coded visual feedback and responsive indication while performing in dimly-lit environments.

Two precision analogue oscillator cores

Precision, wide-range V/oct ramp cores, each ranging from deep subsonic to supersonic frequencies (ramp cores, and not triangular, deliver the ideal waveforms for analogue phase accumulation in the TZ-PM Bus)
Each core generates fundamental waveshapes which interact and mangle one-another through the complex Modulation Bus and TZ-PM bus
Simultaneous waveform outputs for each base shape
Dedicated button to toggle between RAMP or SAW for each core, inverting the phase of the ramp output
V/oct, linear FM and exponential FM inputs which are all independent of the TZ-PM functionality. The Carrier's FM occurs inside the core itself, separate from the TZ-PM bus.
DC-coupled linear FM

Carrier

The heartbeat of Mindphaser, focused on audio-rate generation. Drives the WAVESHAPER and TZ-PM bus. This core's frequency range spans the audible spectrum.

- An external hard SYNC IN forcibly resets the core, useful for punchy sequences, percussive basslines and drum synthesis -- or to sync to another VCO.

- Coarse and fine controls conveniently span the audible spectrum. Ranges further with external CV.

Modulator

An extremely wide range oscillator, spanning from deep LFO frequencies all the way up to supersonic sound! Four base waveforms and diverse internal routing options form a versatile palette of modulations for the CARRIER to feed on.

- Activating hard SYNC on the Modulator locks its core to the Carrier's heartbeat. The effect can be dramatic. Try this while phase modulating!

- Octave RANGE switch lets you quickly flick up and down between octaves. All the way beyond audio-rate and LFO speed octaves. Perfect for experimenting with different PM sidebands and taming the wide frequency range of the Modulator.

- Manual PW (Pulse Width) control and dedicated CV input for PWM.

Waveshaper

This isn't a classic waveshaper! Developed anew from the ground up, this waveshaper is focused on deep harmonic experimentation and audio obliteration. Each waveshaper parameter is capable of being "turned up to 11".

FOLD up to 5 octaves above the fundamental Carrier frequency. A ceiling forms at maximum, imparting additional harmonics.

FEEDBACK the waveshaped and phase-modulated audio through a signal path internal to the waveshaper.

AMPLITUDE modulation spans thru-zero, allowing for full-range ring modulation effects with bipolar CV or audio signals.

CLIP the final stage of amplitude with the switch to introduce a last stage of harmonics before the complex signal exits through the final OUT.

Switchable inverting attenuators on each CV input, for quickly inverting the behaviour of your modulation. The indicator illuminates red to tell you the attenuator has been inverted.

Two distinct waveshaping modes

A press of the shape switch toggles Mindphaser between RAMPOID (green) and TRIANGULAR (yellow) waveshaping modes.

These modes have a remarkable effect on the behaviour of wavefolding and overall character of the final complex OUT, in addition to TZ-PM Bus character.

RAMPOID mode folds more asymmetrically, with raucous, buzzing harmonic artefacts as you sweep and introduce TZ-PM

TRIANGULAR mode folds more symmetric, splitting the complex sine wave at its peak centre of the waveform. TZ-PM character is less raucous, and more smooth.

TZ-PM Bus

Thru-zero phase modulation in the ANALOGUE realm! Unlike its digital counterpart, analogue TZ-PM has its own character we've come to expect from analogue circuitry!

A dedicated, voltage-controlled phase modulation bus completely separate from the Mod Bus
Modulator's SINE wave normalled to the PM SOURCE input
SOURCE input allows you to modulate phase with any signal you patch in
Dedicated voltage-controlled INDEX (amount)
Manual phase lets you zero in (or not!) on the base phase before introducing modulation
Independent of the Linear FM circuitry in the Carrier core

Mod Bus

The internal modulation powerhouse, normally fed by the Modulator core, but external signals are patchable as well.

Select from the PULSE, RAMP/SAW or SINE output of the MODULATOR, or inject your own SOURCE to the bus.

Voltage-controlled INDEX behaves like a macro control when combined with various amounts and polarities dialled in at each CV destination.

Internal sends include the Carrier's classic Linear FM, Amplitude, Feedback and TZ-PM Index, with variable amounts and polarities!

Modulator waveforms internally feeding the Mod Bus behave unipolarly, for predictable modulation of every Mod Bus destination, without external patching. By patching in one of the Modulator's bipolar waveform outputs manually (or any external signal), you can override this behaviour.

Dimensions
30 HP
24 mm deep

Current Draw
110 mA +12V
100 mA -12V

Notes: RACHAEL is an ideal companion to DECKARD'S VOICE or any other oscillator/sound source, bringing unique signal interaction and ring modulation capabilities to modular form. 100% analog, you'll find a wealth of facilities in this compact space, including full ring modulation, a dedicated VCO, a four-stage envelope with amount, and LFO.

Full-throated Ring Modulation
From tremolos to alien-invasion metallic screams, modulate any external source with RACHAEL's all-analog signal path, tunable to subtle, complex, and extreme sounds with the speed and depth controls. It's a perfect pairing for DECKARD'S VOICE or any input (via the signal input). In addition, there's both an internal reference oscillator and the ability to patch in your own external tone for even more complex and varied results.

Analog VCO
Set the oscillator to VCO mode, and RACHAEL is also a VCO with all the character of DECKARD'S DREAM and the classic CS synths that inspired it. That includes square, sine, and "csaw" waveforms -- the CSAW has the distinctive CS leading-edge pulse.

LFO
The oscillator is also configurable as an LFO, with standard sawtooth, square, and sine waves via switch. With a dedicated OSC output, you can use the LFO and ring modulation simultaneously, making RACHAEL both modulation source and creative processor.

A versatile, multipurpose envelope
RACHAEL's onboard envelope generator is more than just another ADSR. With the envelope generator amount control and switchable destinations, you can tune in an amount of the envelope to the modulation frequency, modulation depth, or both, for musical, creative sound shaping. In addition to the gate input, each stage of the envelope has dedicated CV control. And all of this comes with the distinctive vertical sliders beloved on DECKARD'S DREAM.

Notes: Each of the two sections of the module is capable of performing the analog multiplication of two signals (A and B) and add an offset (C). It can also act as a dual voltage controlled attenuverter, dual ring modulator, dual VCA or four channel mixer (see block diagram below).

The B inputs are routed to an attenuverter that multiplies the signal between -2 to 2, while the offset inputs (C) route through a unity gain attenuverter (multiplies the signal between -1 and 1).

The output of first section is routed to the output of the second (when the first's output is unused), so the second output can act as master to achieve (A1*B1+C1) + (A2*B2+C2) or (A1 + C1) + (A2 + C2) - a 4 channel mixer.

The through-zero (four-quadrant) multipliers in the A*B+C allow for true Ring Modulation. To achieve this, simply connect two waveforms to the A and B inputs.

Notes: The Erica Synths Black Ring-Xfade is an extremely versatile module for sound shaping. It consists of two unconventional ringmodulators/waveshapers, a crossfader that works both for audio and CV and a VCA. Unlike conventional ringmodulator that works only with a signal present on both signal and carrier inputs, the Black Ring-Xfade passes through the signal without alteration, if no carrier is present, but low level signals on the carrier input result in unique waveshaping. Add the crossfader between two ringmodulators (or as a separate unit) topped up with the VCA, and you have an amplitude modulation powerplant in 10HP!

Ring1 CV; Ring2 CV
These are the ringmodulator carrier (CV level) level controls. Unlike conventional ringmodulator, this one passes signal unaltered, if RING CV is turned down. With increasing Ring CV level a slight waveshaping turns into proper ringmodulation.

Xfade
This is a manual Crossfade control. This fades smoothly between signals patched into XFADE IN1 and XFADE IN2. The XFADE CV is added to the knob position.

Coupling
Set the Crossfader mode - AC is optimized for use with the audio signals, DC - for control voltages (but it will work fine with audio, as well).

Ring 1; Ring 2
The green LEDs give visual feedback on signal levels, applied to XFADE IN1 and XFADE IN2 respectively.

Vol CV
Select the VCA CV response. A 0-10V setting is intended for use with the envelope generator, a -5V - +5V setting - for nice tremolos with a LFO.

Xfade IN1; Xfade IN2
These are the Crossfader inputs. They are normalled to the Ringmodulator ouputs, so, if nothing is patched here, you can crossfade between two ringmodulated signals.

Xfade CV
This is the Crossfader CV input. The CV is added to the XFADE knob setting.

VOL CV
This is the VCA CV input. The VCA is post-crossfade - it controls the amplitude of a resulting signal after the crossfader. It will also work with low frequency control voltages applied to the XFADE Ins - nice for designing unconventional modulations.

Ring1 Out; Ring2 Out
These are the ringmodulator outputs.

Xfade Out
This is the Crossfader output and the main output of the module.

Ring2 In; Ring2 CV
These are the second Ringmoduator signal and carrier inputs respectively. These two are normalled to the RING1 inputs, and if no signal is patched here, the duplicate the first Ringmodulator. Interesting trick is to set RING CVs at different levels and crossfade between two ringmodulator signals.

Ring1 IN; Ring1 CV
These are the first Ringmoduator signal and carrier inputs respectively.

Fade L; Fade R
The red LEDs indicate the crossfader position.

Xfade CV LVL
This is a crossfade CV level attenuator. By adjusting it you can control a span of fading between inputs.

Specs:
Audio level 10Vptp
CV level (full span) -5V - +5V
Power consumption +38mA, -32mA
Module width 10HP
Module depth 35mm

Notes: CR-78 inspired 7-voice hybrid drum generator module with filter & effects

7 drum voices in the analogue kit: bass drum, snare, tambourine, closed and open hi-hats, metal beat and cymbal;
Hybrid sound generation: band-limited digital noise with spectrum animation, injected into analogue circuits
Full discrete analogue generation part, using inductor coils instead of op-amps
On-board effect processor with drum-oriented 8 effects with additional auxiliary input and firmware update over audio same as in Queen of Pentacles / Milky Way / Grand Terminal
Drums that have character: fit all styles of music - specifically tuned for darkwave and techno
Separate analogue outputs and isolator-style resonance filter for main mix outputs

Power consumption:
240 mA +12V
75 mA -12V
0 mA 5V

Dimensions:
30 HP
18 mm deep

Notes: Quad random, highly controllable, quantized-voltage generator and generative CV sequencer

Gamut Repetitor is a four-channel random quantized voltage generator with looping, range, key, and scale settings. It features a built-in quantizer with 27 scales grouped across a selection of three CV-controllable switches, so it's easy and fun to generate patterns you'll love. The trigger outputs can simply pass through the input trigger or they can generate random triggers for more modular merrymaking.

Patching GR is as simple as sending in a trigger pattern and turning Length up. Then you can use the built-in quantizer, key, and range controls to change the way voltages are generated. Once you hear something you like, turn the Length down to a sequence length you like (up to 32) and loop away!

Size and Power

10HP Eurorack
+12v: 55mA
-12v: 15mA
Gamut from medieval Latin: "a complete scale of musical notes; the compass or range of a voice or instrument."

Repetitor from Latin repetito with suffix -tor to make the noun: "thing which repeats"

"Thing which repeats all the things"

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: Programmable Volt/Octave CV calibrator and transposer

Clever four-channel utility module designed to make it easier to achieve perfect oscillator tracking and transpose CV signals. Also includes some neat quantising and portamento features.

The CalTrans solves issues encountered when playing tonal music with a modular system: tracking problems, curves unrelated to Volt per octave ratio, limited octave range, cumbersome transpose, ...

The CalTrans corrects and expands the range of troublesome VCOs and brings V/Oct tracking to anything that oscillates.

Besides calibration, the CalTrans offers live play features. Each channel can be quantized and any combination of them transposed jointly.

A pair of rotary encoders with detent allow an precise selection of octaves and semitones.

VCOs whose tracking doesn't go high enough to follow the leader will see their pitch repositioned in their highest possible octave so that the global harmony is unaffected.

You can add a pinch of portamento and glissando to each channel and save the whole in user presets.

Firmware 1.17 offers:
* User editable input scaling to match sources that don't generate perfect 1V per octave signals.
* Complete rewrite of the main processing with higher precision.
* ... and the unavoidable fixes and tweaks ;-)

The updated user manual 1.4 is much expanded with operations described in exquisite details :-)
.. and a version 1.5 corrects a mistake in the input calibration description and eases the reading elsewhere.

Dimensions
6 HP
36 mm deep

Current Draw
44 mA +12V
8 mA -12V
0 mA 5V

Notes: The MASTER18 is a very flexible generic CV processor.

You can think of the MASTER18 as a smaller and cheaper version of the DROID MASTER without CV inputs and LEDs, but with an integrated USB and MIDI, six additional gate jacks, two of which are inputs and four are outputs.

Details:

It has 8 CV output jacks with a voltage range from -10 V to +10 V, driven by highly accurate low jitter 16 bit DA converters:
2 gate inputs switching at 0.1 V
4 gate outputs switching between 0 V and 5 V
2 MIDI interfaces via MIDI standard B (mini jack)
MicroSD card reader and a button for reloading the MicroSD card
USB C to access the SD card from your computer or to send/receive MIDI MASTER18 comes with two interesting bonus features:
It can be connected to the Sinfonion as a follower of the Harmonic Sync.
It has an integrated tuning device for VCOs (can measure their frequency).

The MASTER18 is a good choice if you intend to just create CVs and don't need to process incoming CVs. It's perfect for building sequencers and MIDI to CV converters. MASTER18 can do almost any CV task you can imagine, such as sequencing, melody generation, slew limiting, quantizing, switching, mixing, working on clocks and triggers, creating envelopes and LFO or other fancy voltages, or any combination of these at the same time. While doing this, is very precise both in voltage and in timing.

You can attach several different DROID controller modules, such as the E4, the P2B8, the P10, the B32, the P4B2 or the M4 in order to get direct hands on access to all parameters and values of these patches.

Easily create your desired DROID patch utilizing our simple and easy-to-use editor with built in tutorials - the DROID Forge. It is available for Windows and Mac (both Apple Silicon and Intel).

The file created with the DROID Forge is a simple text file named "droid.ini" and needs to be loaded on the micro SD card that goes into the MASTER18.

Notes: A ring modulator based on logic chip but with a twist.

Magic Ring will produce sounds ranging from familiar ring mod sounds to complex evolving modulated timbres.

This ring modulator is really magic because it will work with sine, triangle, saw, ramp, etc. waves, but that is not everything.

The real magic is that it will change its timbre (spectral content) depending on the position of the two SHAPE pots and/or by modulating the CV inputs.

CMS-LAB module

Tech specs:

-Width: 4HP
-35mm depth behind the panel
-Standard 10 pin euro power (+12V / -12V)
-Power consumption: +12V 20mA , -12V 15mA

Notes: Reduxer is a stereo sample reducer effect module.

Depends on it's signal, It can produce dynamic range of sounds from knurly bitcrushing to formant/vowel style effects.

Extra resolution

Custom made Redux potentiometer with 300 degrees rotation for extra crashing resolution.

Double the power

Two proprietary sample reduction circuits with extra offset control on channel 2 via the "Spread", lets you create motion in the streo field for wider effect.

Stereo operation

Inputs are normelized - supporting mono to stereo configuration.

Reduction under control

Redux CV input with attenuator for external control of the bit reduction rate.

Reverse polarity protection

The module have proper reverse current and over current protection in its power input stage to protect the module in case it was connected the wrong way or connected to a faulty power supply.

Dimensions

Width: 8HP
Depth: 20mm

Current draw

+12V: 25mA
-12V: 25mA

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