Synth modules

Notes: The Multi-Delay Processor is a creatively usable echo effect with eight taps. The module's sound may remind you of classic bucket-brigade devices. - It even generates distinctive pitch effects when altering the delay time. An input mixer gives audio material a crisp, analogue character. Thanks to feedback channels with pitch shifter and reverb processor, shimmering echoes and other atmospheric effects can be achieved. A total of nine envelope followers and 14 audio outputs invite you to do extensive feedback patches and other edgy experiments.

The Multi-Delay Processor isn't just a high-quality echo effect but was designed to be a fundamental ingredient of patches. Its core is a bank of eight digital delays, which are wired in series. Together, the circuits form a multi-tap echo. The volume of each signal repetition as well as the raw material can be adjusted via faders. Furthermore, there are individual audio and envelope follower CV outputs for the dry signal and all taps. An analogue clock is used to control the echo circuits. The delay time can be set manually via a potentiometer plus there are two CV inputs with bipolar attenuators. Altering the delay time parameter during operation leads to pitch effects. At this point at latest, you'll realize the superiority of the serial memory design used by Mark Verbos over average effect chips. Despite its digital core, the Multi-Delay Processor offers charming sound reminiscent of a classic bucket-brigade device. - Only cleaner and more transparent.

A three-channel mixer with dedicated level potentiometers adds analogue character to signals before they are fed to the delay circuits. Without patch cables plucked into the second and / or third input, you can use these channels as feedback paths with additional effects. In detail, a pitch shifter calibrated to +1 octave (channel 2) and a reverb (channel 3) are available. - A perfect setup for creating shimmering echoes and other atmospheric effects. High feedback values make the module self-oscillate. In contrast to the multi-tap delay, which consists of individual components, an FV-1 chip is used for pitch shifting and reverberation. This processor is well-known, as it is the main component of multi-effects modules like the Erica Black Hole DSP and numerous guitar pedals. Here, the FV-1 is "just" a creative addition to the main effect.

In addition to the manual mix output, which emits the mixture of raw and effect material dialled in via the faders, there are four other audio outs. Two of these connectors provide signals derived from summing up all even respectively odd taps. The other sockets emit preset mixes with increasing or decreasing level. - Very cool for quickly creating special effects.

Notes: IThe Drum Sequencer is easy to use, classical X0X style live performance oriented sequencer module that provides the ultimate control over your system. Erica Synths Drum Sequencer might be the last modular sequencer for drums and basslines you will ever have to buy!

Features:
16x trigger outputs
12x accent outs
1x CV track with scales
1x Gate track
2x LFO with independent or synced to the BPM frequency
LFO attenuation per out
Max pattern length = 64 steps
Time signature per Track
Direction per track/pattern
Pattern length per Track
Shuffle per track
Probability per step
Retrigger per step
Time shift per step
Instant pattern switching
Solo/Mute tracks
Step/Tap record modes
8 Banks of 16 Patterns
Quick Copy/Paste per tracks & patterns
Pattern linking
Song mode
MIDI sync in with Start/Stop
External 4PPQ clock in
Firmware upgrade via MIDI SysEx??
Specifications and appearance are subject to change without notice for improvement.

Technical specifications:
Trigger amplitude: 5V
Panel Width: 42 HP
Module depth: 30mm
Power consumption: 152mA@+12V, 56mA@-12V

Notes: The FUMANA is an all analog dual filter bank with various control to access dynamically these bands. Each filter bank is composed of an array of 16 independent 48dB/oct bandpass filters. Having two identical filter arrays, allows you to use one of those for spectral analysis (of a modulator signal) and the other for spectral re-synthesis (of the main signal). Each array is sub-grouped in odd and even bands (numbering these increasingly from 1 to 16 from left to right). It is possible to apply different signal to odd and even bands, both for main and/or modulator arrays. This, together with the 16 envelope followers connected to each band of the modulator filterbank, and the 16 VCA connected to each band of the main filterbank, allows the FUMANA to perform a single 16 bands or a dual 8 bands analog spectral transfer.

While the upper section provide access to each main filter's direct output, the lower section has 4 voltage controllable parameters to manage two independent functions for further spectral editing: tilt and parametric scan.

The tilt, as the name suggest, tilts the spectrum, adding and subtracting amplitude to the 16 bands, emphasizing lower or high bands, and attenuating high or lower bands: this is managed only with the green potentiometer.

The parametric scan, instead, works with three parameters: peak/notch, band selector and width. Like in a parametric equalizer, where is possible to set peak/notch gain, frequency and slope, the FUMANA uses three parameters to set which is the centre band to perform this manipulation, then if that band should be emphasized or attenuated, and how this action is extended to nearby bands.

In addition to the 16 bandpass outputs, there are other 4 outputs provided: the all bands output, the all envelope followers output, the odd bands and the even bands output. These two have the options to be inverted in phase with two switches, in order to obtain even more combination when summed together, maybe/also with the "all bands output", using, for example the 333 module.

Since a spectral transfer tool may be used as a "vocoder-like-effect", the FUMANA provides an input for an external noise which may be used for unvoiced (fricative/sibilants) sounds as words containing or starting with s, f, z, ch and other fricative sounds.

Notes: A unique graphical take on an oscillator design, E-RM's brand-new polygonal synthesis approach is unlike anything else we've seen. Stereo oscillator capable of a huge range of timbres. Innovative stuff.

Supplier's notes:
The polygonal synthesis is a kind of graphical complex amplitude shaping method. With the help of the built-in modulation sources, polygonal synthesis in polygogo opens up a wide range of sonic possibilities from clicky pinged sequences to unique dark thunderstorms, bass lines, leads and colored noise.

This mighty stereo oscillator impressed the audience with its wide range of possible timbres. The idea of sculpting a shape on the screen of the module that then translates into sound works really well and invites the user to interact with the module.

Notes: Deckard's Voice is an entry level semi-modular synth from Black Corporation for eurorack systems. Sharing the same paradigm and circuit as it's bigger brother Deckard's Dream, trimmed down for eurorack and supplemented with the flexibility available only in a modular format.

Features:

VCO with pulse, glitch saw and sine outputs
Dedicated LFO for PWM
Noise source
External audio input to a filter
Discrete hipass and lowpass filters with resonance and IL-AL-ADR envelope
LFO with sine, saw, ramp, square, smooth and stepped random output
Output VCA with ADSR envelope and velocity control over volume
ADSR (0-10V) and LFO (-5V/+5V) outputs
Master and line level outputs
32HP size
+12/-12V standard eurorack power
38mm deep

Notes: Metron is a 16-channel trigger and gate sequencer for Eurorack with extensive functions, expansion possibilities and the tools you need to create long sequences with many variations in a very short time.

The sequencer allows pattern lengths of up to 256 steps, and the number of steps per channel can be varied to create interesting and varied rhythmic structures. These patterns can be quickly stored and exchanged between units via the SD card slot. Metron also offers a random function per step and a ratcheting function.

With the optional WMD Voltera, Metron can be expanded with four additional bipolar voltage outputs.

Features:

16 Channels of trigger and gate signals
intuitive drum sequencer
View 4 channels at a time and easily switch views
Single track view lets you zoom in on a single track and see 64 steps at a time
Up to 256 step pattern length
Different pattern lengths per channel
Five instantly recallable, editable variations
View and edit variations that are not playing for easy cue and non stop performance play
Save patterns to SD memory for easy recall on power cycle
No-stop loading from memory
Easy view memory previews lets you see a pattern before loading from memory.
SD allows for easy update as well as easy back up / file transfer from unit to unit
FX / Fills for instant / momentary variation
2 assignable inputs for external CV control
Tap in patterns with quantized recording with the buttons or external source
Quick copy / paste / clear functions
Internal clock with Swing
dedicated reset output
MIDI Preset mode lets you send MIDI messages to other modules on the Doepfer CV bus. (for use with WMD SSM, Malekko Voltage Block, and more)
Random Pattern Generation
Probability per step and group probability functions
Burst per step for ratchet / roll sounds
Custom Fill Patterns for instant fills
Trigger Mutes
Step looping
Manual gates
Power consumption: 180mA at +12V and 0mA at -12V

Depth: 31mm

HP : 36

Notes: ***Now featuring Assimil8or Software Version 2.0! Available to download here: http://www.rossum-electro.com/products/assimil8or/

The ASSIMIL8OR is a CV/Gate-controllable sampler with eight independent channels. Each channel is not only its own voice, but also has a separate audio output and a gate/trigger and three CV inputs. Given ever get two sample inputs and main outputs. Thus, Stereo Sampling and playback is possible. Mixed operation of stereo or mono is possible and is limited only by the maximum number of eight channels or parts.

The ASSIMIL8OR works with high-quality 24-bit AD and DA converters. Internally, however, sample and bit rate for lo-fi sound can be lowered, the latter is even CV-controllable. The samples can also be otherwise manipulated in many ways. Thus, the phase of a sample via CV or a different sample can be modulated. Likewise, the loop points can be controlled and the sample can be traversed with CV control (scrubbing), whereby wavetable similar effects could be achieved. The following parameters can be addressed via the gate / trigger and CV inputs:

- Pitch
- Level
- Bit Depth
- Phase Modulation
- Pan
- Scrub
- Sample Start
- Sample Length
- Loop Start
- Loop Length
- Release Decay

Samples and presets are stored on an SD card, which is easily accessible plugged into the module front.

Notes: Loquelic Iteritas Percido is an extension of the original Loquelic Iteritas. Like Loquelic Iteritas, it is a digital VCO with interpretations of three classic synthesis algorithms involving dual pitch control parameterized by four tone controls. LIP adds an envelope that can be shaped, modulated, and routed to pitches and tone controls, making it into a stand-alone voice.

Notes: With our MORPHEUS digital filter module, we're finally able to unleash the full power of the 14-pole Z-Plane Filters that Dave invented for the E-mu Morpheus synthesizer.

The MORPHEUS Eurorack module includes over 280 filter configurations, what we call 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.

Notes: The Control Voltage Processor from Verbos Electronics GmbH is a suite of control voltage processing possibilities divided into 3 sections in a slim 18HP package. The lower 2 sections are DC coupled mixers that allow mixing, inverting, offsetting, scaling, multiplying, dividing, crossfading or a combination of these functions. The top section is a voltage controlled slewing processor with independent control of Positive and Negative slew rate, with some unique tricks. The Positive and Negative slew, or Rise and Fall rates if you like, have reversing attenuators. The slopes can be blended from linear to RC curves (starting all slides fast and ending slow, like a proper "East Coast" Portamento) without a change in speed. It can be triggered like an AD envelope and has a Gate out that goes high when the CV out is below 100mV. Of course it can loop by patching the Gate out to the Trigger in. The Bounce control adds a unique flare of overshoot to CV changes, a bit like the effect of stopping a tape reel from turning and then letting it go. The combination of multiple voltage processors offers the user the functions of analogue computer.

Notes: The Spherical Wavetable Navigator (SWN) is a six-channel synthesiser that makes it easy to create slowly morphing drones, polyphonic melodies, evolving sequences, and rich textures.

The SWN features six wavetable oscillators with independent pitch, level, and waveform controls. Six LFOs (Low Frequency Oscillators) can be used as modulation sources and/or envelopes, making it easy to add dynamic motion to your patch. Each channel is a full voice and can be "played" using the top row of buttons, the internal LFOs, or note-change detection on the 1V/oct jacks. The SWN ships with 12 three-dimensional (spherical) wavetables and an easy interface which allows you to record and edit custom wavetables from live audio. Open-source software for Mac, Windows, and Linux called SphereEdit can be freely downloaded and allows you computer to create, edit, and convert .wav files into Spherical wavetables to transfer into the SWN with an audio cable.

New firmware available which adds extra features, visit https://4mscompany.com/p.php?p=820&c=5 for details.

Notes: 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: USTA is a 4×4 tracks sequencer for voltages and gates with variable stage duration, designed to quickly see and edit multiple voltage relationships in real time.

Variable stage duration means that every single stage duration can be individually set in relation to the clock, instead of being constrained to a one-to-one ratio (i.e. one stage per every clock impulse).

4×4 tracks means that every stage can store and generate up to four separate voltages (two CVs and two gates), and that up to four independent stage sequences can be arranged into as many different tracks.

Its architecture is based on an array of 16 'Stages' which form a 'Pattern'; 16 patterns form a 'Track', and four tracks form a 'Project'. Within each track, each stage can provide two gates and two CVs, and a wide set of options is available to define and modify the value of each output ('Layers') and the way it is played ('Colours').

Every Stage is related to a dedicated stepped encoder for quick and intuitive editing, and all the 16 encoders are arranged in an oval layout with a circular playhead. Every encoder is surrounded by a ring of 16 LEDs and a RGB led, to provide a visual feedback of the current setting of that step basing on the layer you are working on (like raw CV, quantized CV, length, gate...) and the way it should play depending on the RGB colour.

Notes: Updated version of the excellent Bitbox sampler module offers more powerful sound processing and an improved touch screen. Improved effects and mixing with all the same creative power of the original.

Supplier notes:
Bitbox mk2 delivers powerful sampling and mangling for Eurorack. With this module you can add recording, sample playback, clip launching, slicing, granular sounds and musically intelligent looping capabilities to your Eurorack rig. With a 3.5 inch touchscreen, bitbox mk2 makes easy work of selecting, editing, and tweaking your samples. You can stream large samples of up to 4 GB file size straight from the microSD card. Interact with other musical components via CV and MIDI. Tweak your configurations to get them just right, then save them to multiple presets for future reuse. With the new bitbox mk2 hardware, you can now do more with the new more powerful processor.

Sample Playback
Play up to 24 polyphonic notes when your samples fit in the 64 MB of internal memory or up to 8 larger samples streaming directly from the microSD card
Configure 16 sample pads per preset as single or multi-samples, clips, slicers, granular or new recordings
Stream long samples from the microSD card with a max sample size of 4 GB, which can be many hours of audio
Trigger samples with the touch screen, CV gate inputs, or MIDI input
Use MIDI for polyphonic playback of samples or slices
Control how samples start and stop by choosing from one-shot, toggle, and gate launch modes
Tweak playback through a variety of sample parameters, including start position, length, pitch, gain, filter, loop mode, launch quantization, ADSR, Exclusive Grouping, clip synchronization, slice placement and sequencing, grain size, grain spread, grain count, and MIDI note and channel mapping

Record Eurorack level audio straight into the module:

Record samples from a stereo audio input pair
Configure each pad for stereo or mono recording with the option to synchronize the start and stop times to clock inputs
Trigger recording via audio level threshold
Create perfectly sized loops by setting the recording length
Enable immediate playback after recording for live looping capabilities
Make recordings up to 4 hours in length
Store recorded samples as WAV files on the micro SD card then remove the card to transfer them to your computer
Sample Modes
Find creative ways of using your samples with our 5 sample playback modes:

Trigger one shots or launch loops using sample mode
Load a folder of samples into a sample mode pad to improve the quality of the pitch shifting when playing a sample chromatically or to trigger different samples with each note
Play time-synchronized loops with constant pitch time shifting in clip mode
Skip between slices of a WAV using slicer mode
Create rich textures and other worldly sounds with granular mode
Inputs and Outputs
Connect up to 8 CV modulators to control numerous sample parameters
Trigger each of the 16 pads with a dedicated gate input
Record through the dedicated stereo audio input pair
Use CV to keep time through the dedicated clock input
Confidently connect with both TRS MIDI Type A and Type B, no adapter needed
Route the audio from each pad out to one of 2 stereo audio output pairs or any of the corresponding single channels
Inputs and outputs are DC coupled so you can record and play out CV signals

External Control and Synchronization
Playback can be immediate or synchronized to internal clock, TRS clock in, or MIDI clock in and out
Trigger each pad independently through a dedicated gate input
Use MIDI to trigger pads via a note per pad
Play a single or multi-sample pad pitch shifted using MIDI notes or CV
Trigger different sample slices using MIDI notes or CV
Modulate a wide variety of sample parameters through the MIDI input and up to 8 CV signals
Quickly set up MIDI modulation using Learn mode- no need to look up CC numbers
Module Features
Use the 3.5? diagonal touch screen to intuitively explore the features of the module
Get more creative with double the processing power of the original bitbox
Fill out your sound with reverb and delay
Import or export WAV files with your Mac or PC using a microSD card
Save and recall multiple presets
Increase your capacity with larger microSD cards
Select Flipped UI mode to mount the unit with the screen on the bottom and use the screen, knobs, buttons, and CV jacks as you normally would

Notes: Inspirational west coast sounds from one of the masters. Additive oscillator with eight harmonics, direct outputs and powerful CV control to scan, tilt and mix the waveforms.

Supplier's Notes:
For the first time in Eurorack, this oscillator module provides outputs for the first 8 harmonics as sine waves. Also included are triangle, saw, square waves.

A voltage controlled mixer with various methods of address allows the user to scan, tilt and mix the harmonics from both panel and external voltage control. It is built on a discrete, all analog triangle core with an old school discrete transistor exponential converter. It has inputs for linear and exponential FM, the exponential with a reversing attenuator. Of course there's a 1 volt/octave trimmed CV input as well.

Power consumption: 120mA at +12 V and 90mA at -12 V

HP : 32

Notes: One of the most impressive granular synthesis approaches in Eurorack, combining looping and granular effects with buffer sizes up to five minutes. Hugely creative and powerful dual-module setup.

Supplier's Notes:
There's a long history behind the granular concept and many reinterpretations of it's core principles, this is ADDAC's take on it.

In a loose description digital Granular refer to pieces of sound files being played at the same time with slight or completely different parameters originating what is commonly referred to as granular clouds. Normally there's a buffer size from which the granular engine snips it's pieces from and plays them according to the parameters set. This buffer size is normally small in size where grains are so small that can reach the hearing spectrum and be heard as a sort of ever changing complex wavetable, this is the principle behind granular synthesis.

ADDAC have added the possibility of long buffer sizes up to 5 minutes, allowing "softer" approaches to the granular principle using it as an effect that can generate from "accidental" effects like slight "stutters" to extreme processing and transformation of any incoming audio signal.

This module is conceptually deep but easy to grasp and operate as all controls are in its dedicated panel, all jack inputs and outputs have its own separate panel to allow no compromise when playing it's controls.

There are three main sections in this module:
Looper Engine: The Looper is where all the Real-Time recording happens. The audio input feeds the recording buffer, multiple controls allow to record and play loops into a list so that any sample in the list can be accessed at ay time and more acting as a standard looper
Granular Engine: The Granular acts upon the buffer of whatever LOOP is selected.
Output Mix The output mix allow individual control for the Dry Input, Looper Volume and Grains Volume.
Besides these main sections there's also a simple strip down MENU mainly used to LOAD and SAVE Banks, no Menu diving guaranteed.

For more detailed info, please refer to the User's Guide.

Audio Specs:
Audio input: Stereo, 16bit 44.1Khz
Audio output: Stereo, 16bit 44.1Khz

Tech Specs:
32HP + 13HP
4.5cm deep
240mA +12V
70mA -12V

Notes: Successor to the excellent Metropolis, the Metropolix is a performance-focussed step sequencer with some really neat features, including modulation and sub-sequences in Loopy mode.

Supplier's Notes:
The Intellijel Metropolix is a unique and powerful Eurorack format musical sequencer. With an abundance of hands-on, tactile controls and a wealth of modulation possibilities (both internal and external) you can quickly and easily create infectiously musical sequences that are never boring. Even the simplest riff can be brought to life with seemingly endless options to create variations or real-time manipulations. Equally at home in the studio or a live improvised performance, the Metropolix is sure to become a staple source of fresh ideas and killer riffs in your creative process.

Width: 34HP
Depth: 25mm
Power: 95mA @ +12V 10mA @ -12V

On first blush, it appears to be a simple 8-stage sequencer - but there is far more functionality than first meets the eye:

There are two tracks (TRK 1 and TRK 2) that are variants of the single master pitch/gate sequencer, which is programmed via the PITCH sliders, PULSE COUNT and GATE TYPE switches. Each track interprets the master sequence in a variety of ways - creating complementary sequence variations that enable you to generate counterpoint, polyrhythms, and all manner of sonic movement (both subtle and extreme). Each of these tracks has its own playback ORDER, sequence LENgth, clock DIVision, SWING amount, SLIDE time, and track GATE lengths. Other track-based sequence variables are accessible from the TRACK MENU, and include Pitch Slider inversion; sequence note range; track transposition; and more. In addition, Tracks 1 & 2 both have multiple lanes of per-stage playback parameters, including: GATE override; PITCH override; RATCHet count; PROBability of playback; ACCUMulating transposition, and a dedicated CV lane. Each stage also has a SKIP feature, and a pitch SLIDE option.

8 separate and individual MODulation lanes are accessed via the MOD button. Each MOD lane has 8-stages of modulation values and its own playback ORDER, LENgth, and clock DIVision; and each lane is routable to one of Metropolix' two assignable outputs or to dozens of internal destinations, allowing for some sophisticated and powerful self-modulation.

A trio of AUX inputs allows for external modulation of user-assignable sequencer parameters for even greater variation, while two assignable CTRL knobs give you direct access to the parameters you want to adjust most frequently during a performance. With dedicated Pitch/Gate outputs for both Track 1 and Track 2; two totally user-assignable outputs (A and B); and internal MOD routing, Metropolix features a wealth of patching opportunities.

Metropolix also features a Loopy mode, allowing you to instantly play back short sub-sequences, or even "play" the stage buttons directly (like a 'keyboard').

Metropolix stores up to 64 preset configurations (in 8 banks of 8 presets), and all live settings are stored in EPROM, ensuring that your Metropolix will always power up exactly as you left it - even if you haven't saved them to a preset. By default presets can change all the structural (menu-based) elements of your sequencer without overwriting the front panel controls, but full recall is also available.

The operation of the Metropolix is optimized for live performance and jamming, with quick access to all the most important performance parameters, and the ability to greatly affect your sequences with a single slider or switch.

Notes: Wow. Oscillators don't come much more special than this. Two contrasting, fully independent VCOs with waveshaping and complex cross-modulations, plus the 'Thru Zero Trinity' of FM, phase and amplitude modulation. Beautiful.

Supplier's Notes:
Thru Zero Complex Oscillator

A new complex oscillator, featuring two independent VCO's. Both voices have a unique signal path and flavour. Complex cross modulations entangle them together, opening up completely new timbral territories.

Features include the Thru Zero trinity; Frequency, Phase and Amplitude modulation.

Each oscillator also has its own Low Pass Filter, which works great to mellow the harsher tones from complex intermodulations.

Each VCO has great tracking and temperature stability, there is no distinction between a carrier and modulator.

The FM bus lets you modulate the index of each individual voice, with linear and exponential inputs for external sources. There are also inputs for Sync in, with both soft and hard sync.

VCO 1

The left VCO signal chain starts with a shape function, that let's you morph between triangle and saw. This waveform is also available as a separate output.

Next is a sinusoidal wavefolder, which changes its response dramaticaly based on shape of the waveform. The circuit is based on a modified version of a design by Barrie Gilbert from 1977, popularized by Open-Music-Labs (used with permission).

This circuit also creates the possibility of Thru Zero Phase Modulation, here the depth is controlled with the third slider. The source is normaled to VCO 2, but external modulation sources can be patched in, and the depth can also be modulated with CV.

Lastly there's a 2-pole Low Pass Filter, before going out the MAIN output. All parameters can be CV controlled, and feature handy attenuators at the inputs.

VCO 2

The first slider is a continuous waveform shaper, that morphs from sine to tri to saw.

This waveform then enters the Thru Zero Amplitude Modulation (Ringmod) section. The slider sets the depth of modulation, with the source normalized to VCO 1. The depth can be CV controlled, and an external source can be patched as well. The result is also available on a separate output, pre wavefolder/filter (VCO 2 sine).

The third slider is a wavefolder, it's based around a novel wavefolding topology, with a unique and more aggressive sound compared to the sinusoidal folder of VCO 1.

The wavefolded signal goes into a 2 pole Low Pass Filter, and out of the MAIN output.

Dimensions
26 HP
27 mm deep

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