Synth modules

Notes: Dual 1 x 4 buffered mult (one audio or cv signal in with multiple buffered outputs).

The output of the first mult is normalled to the input of the second mult to create a 1×8 buffered mult.

Notes: Dual 1 x 3 buffered mult (one audio or cv signal in with multiple buffered outputs).

The output of the first mult is normalled to the input of the second mult to create a 1×6 buffered mult

Notes: Dual 4-way passive mult (one audio or cv signal in with multiple unbuffered outputs)

On the back of the pcb is a pair of solder points marked as "link". You can connect these (with a solder blob or small jumper wire) to turn the mult into a single 8 channel Mult instead of 2 x 4 channel.

Notes: 'Beast's Chalkboard' is dual channel stepped voltage source and adder for your eurorack modular synthesizer system. It primarily is intended as a dual octave switcher for VCO's but has many other uses including sequence transposition, FM ratio creation, buffered CV distribution and VCO calibration.

Technical Specifications:

Supply: +/-12V (Reverse voltage & polyfuse protection)
Current Draw: ~30ma
Size: 6 HP
Depth: 22mm (including power header)
Offset Error: +/- 10mV

Notes: 2HP narrow version of the A-180 multiples module. It is a passive signal splitter suitable for audio or CVs. Two sets of four jacks are interconnected, by placing a solder bridge you can connect all eight jacks.

Dimensions
2 HP
18 mm deep

Current Draw
Module does not draw current

Notes: The Buff Mult is a buffered multiple with LED indicators to show positive and negative voltages. Using wide bandwidth opamps, it functions as a dual 1-to-3 or a single 1-to-6 mult for audio, video, or CV signals.

Notes: The Shifty is essentially a combination of four sample and hold stages, a sequential gate and sequencer controller. This collection of functions allows for some specific and useful utility application.

One of the primary uses for Shifty is to take a monophonic sequence source and route each new note of the sequence to up to four different synthesizer voices in a specific pattern. In this way you can create pseudo polyphonic sequences since each voice can be triggered to play and sustain while the next voice int the sequence gets triggered. Another term for this is hocketing.

The other main application of the Shifty is to function as an Analog Shift Register. In this mode each new gate input received causes the current set of pitches to be shifted to new output locations as a new one is added and the oldest one is replaced. This can be an interesting way to create chords that are up to four stacked notes when used with a pitch sequence source that has a harmonious series of notes (e.g. a pentatonic scale works really well). Even just using two of the outputs will yield very interesting melodic interplay and is an excellent way to make a simple sequence much more complex and interesting.

In a more basic way the Shifty could be used as a simple Sample/Track and Hold module or as a sequential gate.

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: The 2hp Buff is a buffered multiple capable of splitting an input signal to multiple outputs. Due to its active architecture, inputs retain their full integrity as they are copied to multiple destinations. One input signal can be copied to six outputs, or two inputs can be copied to three outputs each. The Buff is especially great for splitting pitch or audio signals where signal integrity is critical. Keep your signals in shape with Buff.

Notes: Switched mults come to Intellijel's space-saving 1U format, offering six jacks and two busses, routing signals between the two or muting them using three-position switches.

Supplier's Notes:
The Mult 1U takes one audio or CV signal input, and (mult)iplies to up to four outputs. Because the Mult is passive, it requires no power to operate. Multiply anything by four, twice.

A signal multiplier accepts an input signal and routes it to multiple outputs simultaneously. For example, you might want a sequencer's GATE to trigger two different envelopes - one to control volume and one to control filter frequency. In order to accomplish this, you need a signal multiplier.

In addition, each Switched Mult 1U features a pair of 3-pin Link connectors on the rear panel. These let you connect other 3-pin Link devices, such as an XY I/O 1U module, or even additional Switched Mult 1U modules (handy for distributing mults across the width of your case).

Width: 14HP
Depth: 18mm
Power: n/a (passive)

Notes: Performance-focussed four-channel attenuverter and offset module, with built-in voltage generator for 0-5v or i5v voltages. Simple but effective.

Supplier's Notes:
Lapsus Os is a four channel attenuator/attenuverter and offset. Designed with performance in mind, each channel can be set to either attenuate or attenuate/invert an incoming signal, adjust offset of an incoming signal, or with nothing patched to its input, generate a 0-5v or i5v offset. Switches on the back of the module invert the fader behavior, allowing for the module to be mounted in either direction, for further customization and ease of use.

Etymology
Lapsus -- from latin lapsus : 'sliding' Os -- from latin os 'bones'
"Translation: Dancing Corpse"

Interface

Faders 1-4: The main controls of LO. The LEDs in the faders show the CV that is being passed through. When in attenuverter mode, the LED will be off at 0, allowing each fader to easily be set near 0.

Offset inputs 1-4 (+): Sending a signal to these inputs adds an offset to the input, controlled by the fader and the mode switch.

Outputs: Each channel has a pair of identical outputs. If nothing is sent to either input of a channel, an offset will be generated and output here, useful for controlling parameters on other modules with a single fader.

Uni/Bi Switches 1-4: In the Unipolar position (left), the corresponding channel attenuates the input signal. In the Bipolar position (right), the upper half of the corresponding channel fader attenuates the input signal, the lower half of the fader inverts and attenuates the signal.

Attenuating/attenuverting inputs 1-4 (x): Sending a signal to these inputs attenuates/attenuverts the signal, depending on the position of the channel fader and switch.

Rear-board switches: Below, in red. Inverts the corresponding channel, allowing for creative mounting in either direction. Note that each channel must be switched independently to fully reverse the functionality.

Patch Tutorial

Patch 1: Set a channel switch to the left position and patch the outputs to CV inputs on another module (for instance, Loquelic Iteritas). The fader becomes an easy-to-use controller for those parameters. Patch the rest of the LO channels to other parameters in your system to create an expressive and intuitive interface.

Patch 2: Patch a CV signal (such as an LFO) into the attenuverting input of a channel. Set the channel switch to the right position, and patch the output to a bipolar CV input in your system. Tweak the fader to attenuvert and dial in the perfect amount of modulation on the fly.

Patch 3: In a case with four voices route each LO channel to the decay control for each voice. Use for centralized control over voicing.

Size: 10HP Eurorack
Depth .8 Inches
Power 2x5 Eurorack
+12 mA 60 mA
-12 mA 50 mA

Inputs: i10v
Outputs (without voltage applied):
Unipolar: 0-5v
Bipolar: i5v

Notes: Introducing a four independently buffered input mixer and a buffered output signal splitter, in one module!

Erica Synths Black Mixer/Splitter V2 is an advanced replacement for stackable patchcables.

Everyone who knows a bit more about electronics will point out that stackable patchcables are not a really wise choice for such sensitive things as musical instruments because they mechanically connect electrical signals that at best can cause undesired modulations or even damage the modules.

Erica Black series are high-end modules with unique functionality. Only the highest quality components are used and all inputs and outputs are protected against undesired overvoltage. When designing the Black Series, design and usability were prioritised first. Big knobs are assigned to functions that make difference in sound. Together the Erica Black series are a range of modules that make an entire synthesizer.

Technical specifications:

Input signal level: -10V - +10V
Power consumption: +25mA, -25mA
Module width: 4HP
Module depth: 25mm

Notes: Mult 1U Intellijel Format

This is a buffered/active mult with LED indicator. You get two channels of 1 to 3 multiples within a 2HP module. The output of channel 1 is normalled to channel 2 so it can also be treated as a 1 to 6 multiple as well.

Active vs Passive mults:

With a passive mult you are effectively just plugging multiple things into the same jacks. This will often cause some voltage drop in each of the signals. With an active (or buffered) mult you will not get any voltage drop from the original signal.

Comes with a black and gold panel, power cable and one year warranty.

Usage note:

The red stripe of the power ribbon cable goes towards the top of this module.

Notes: A 22hp version of Mutable Instruments Elements. It is functionally equivalent and therefore runs all firmware options and having identical sound characteristics. This version is great compromise between the tight spacing of Atom and full size original, which is a bit large.

Width: 22hp
12V: 130mA
-12V: 10mA

Module power connector can be connected either way on the module side.

Notes: Erica Synths Black Mixer is compact, high quality audio mixer with bonus features - mute switch on each input and three buffered outputs. This allows you to add audio signals to your mix instantly and in exactly right level, plus you can send signals to several post-mixer devices simultaneously, for example, split the output signal to LP and HP VCFs and create advanced bandpass and notch filters.

Technical specifications:
Max input level: -10V - +10V
Mixer gain: 1
Power consumption : +8mA, -8mA
Module width: 6HP
Module depth: 25mm

Notes: Small but perfectly formed, a clever multiple from Erica's compact Pico range. Active buffering to prevent signal loss and two-part A and B setup for 1-3 plus 1-2 or 1-5 configuration.

Supplier's Notes:
Erica Synths Pico Multi is an advanced replacement for stackable patchcables - it's highly accurate active buffered multiple that will work for signal splitting in any circuit, including driving several VCOs in tune from one CV source.

Two independent active buffered multiples 1-3+1-2 or 1-5 configuration.

Technical specifications:

Max input level: -10V - +10V
Power consumption: +20mA, -14mA
Module width: 3HP
Module depth: 35mm

Notes: Very nice old-school vocoder for Eurorack, featuring a built-in mic pre-amp and full 10-band patch bay. Internal VCO and straightforward control setup help simplify operation.

Supplier's Notes:
The VXC-2220 is an 10-band analogue vocoder with patch-bay for each individual filter section. VXC-2220 vocoder is based on the iconic classics 222 vocoder. For stand alone usage the VXC-2220 is equipped with an internal oscillator generating saw and pulse waves form C1 to C6. A simple and efficient vocoder.

Specifications

Microphone input for speech signal
Line input for speech signal
Line input for carrier signal
Input level control for speech and carrier signal
Output level control
Line output
10-Band analyzer outputs
10-Band synthesizer input
Internal VCO (1 semi-nut step size);
* Saw wave (C1 - C6)
* 3x 10% Pulse wave (C1+C2+C3 - C4+C5+C6 )
* White noise
- Synthesis for 's' and 't' sounds
- Feed-trough level control for speech and carrier channel
- Bypass switch
- 10pin power connector (+/-12V)

Dimensions:
(36HP) 128,5×182.5mm (depth: ca. 35mm incl. power connector)

Power Consumption:
+12V = 125mA
-12V = -125mA

Notes: A passive multiple that fits nicely with the Klavis range.

Notes: A (buffered) mult is an essential item in every rack. This buffered DC-coupled module will fulfill all your audio and CV multiplying needs.

With a little switch on the back the module can be configured in two different modes.
The 1-to-8 mode speaks for itself, offering eight identical copies of your input signal.

The double mode offers a 1-to-4 and 1-to-3 buffered multiple with the first input getting normalised to all output jacks if the second input stays unused.

Weight: 27 g
Dimensions: 128.5 × 9.8 × 30 mm
Width: 2 HP

Notes: Sampler legend Dave Rossum's ultra-powerful Assimil8or module gets a black makeover. Eight-channel multi-timbral design with extensive CV control and clever sound manipulation options.

Supplier's 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: Sinc Pravus is the Goldilocks of a quad offset in 4HP. Whether your CV ranges are too high or too low, Sinc Pravus is just right.

Use the back-panel switch to configure Sinc Pravus to either ±5 or ±10 volts. To use Sinc Pravus as a DC-voltage generator, just leave the input unpatched.

Each of Sinc Pravus's four channels are controlled by a dedicated potentiometer with an LED for monitoring signal outputs. The input jacks are normalled from top to bottom so it can offset the same signal by different amounts or simply act as a mult.

Sinc Pravus is a workhorse in 4 HP.

Notes: Clock generation meets waveform manipulation in this analogue harmonic oscillator. Combine with the Tobinski sequencer and/or interpolating scanner modules for the best creative results.

Supplier's Notes:
The Harmonic Timing Generator is a versatile Eurorack module that combines advanced clock generation with harmonic waveform manipulation. Combined with the Tobinski Sequencer, the module is a great tool for rhythmic and sonic creativity in the modular system.

As a reference clock generator, the Harmonic Timing Generator produces a base frequency with analogue multipliers (x1 to x8) to generate complex timing signals. Three selectors provide manual or voltage-controlled frequency switching, offering flexibility for intricate sequencing patterns. An LFO mode enables slower clocking rates, ideal for driving sequencers or generating modulation sources.

When used with the Interpolating Scanner, the sawtooth outputs of the Harmonic Timing Generator are transformed into sine waves. This allows the module to function as a harmonic oscillator at audio rates or as a versatile modulation source in LFO mode. Its dual functionality ensures that it can adapt to a wide range of patching needs, from rhythm generation to rich harmonic exploration.

The Harmonic Timing Generator is a versatile and creative tool, offering rhythmic and harmonic possibilities that complement any modular synthesizer setup. Its integration with other Tobinski modules ensures a cohesive and expansive sonic palette.

Power consumption: 235mA at +12V and 176mA at -12V and 20mA at +5V

Depth: 27mm

18 HP

Notes: Clear and simple, the way a mult should be.

Three channel buffered multiple. Each channel has a dual color LED indicating Green for a positive voltage, and Red for a negative voltage. Each channel is normaled to the next channel for a total of nine outputs from one input.

Features:
3 Channels
Green/Red LED displays +/- voltage
Each channel normalled to the next for a total of nine outputs
Zero impedance buffer design for zero droop

Specs:
Power: +12V = 30mA; -12V = 30mA
Size: 4HP
Depth : 25mm

Notes: In recent years, stereo signal paths have increasingly found their way into the wonderful world of Eurorack synthesis - so naturally, utilities should follow suit. Introducing the Herzlich PSA, a simple solution to a problem you might not even realize you had. Far from just useful as an attenuator for audio sources in mixdowns, the PSA can also be used to bring audio down to more managable levels (such as line level), attenuate multiple signals simultaneously (like increasing the modulation depth of two LFO's at the same time! It's like having two hands, but with one hand!) and even function as a multiple: Attenuator 1 is normalled to Attenuator 2, so multing your stereo signal (or two mono signals) while attenuating the two signals individually is easy as pie.

There's not much else to say, except that it's passive, and draws no power - and it looks great!

Dimensions
4 HP

Current Draw
Module does not draw current

Notes: Octo I/O is a bi-directional passive Polytip to 3.5mm expander and a Polytip Mult. The expander section lets you break out to each individual voice from a polyphonic module. The mult section lets you mult Polytip polyphonic signals from one source to multiple destinations. For example patching the OCTOSTAGES envelopes to control both your OCTOPASS filters and HEXAGAIN VCAs.

Dimensions:

6HP - Depth: 15mm

Current Draw:

Module does not draw current

Notes: Buffered, switchable multiples for precise CV signals in 1/3 size

The 4BUFFER module is a buffered multiple of 1 in to 2 out.

Buffered multiples have the advantage over the normal passive mults in that there are no voltage drops across the signal path. As the AE system matures into more precision regarding oscillator tracking etc. this is a helpful utility for various situations.

Please note: These micro modules need a carrier, like the uBASE module. They cannot be mounted directly into an AE case.

Notes: S&M is a very useful utility module in 1u Intellijel format combining unity mixer and a precision active buffer.

CV and Audio Mixer
Audio grade dc-coupled unity mixer for mixing CV or Audio signals
Active Buffer/Splitter
Precision active buffer/splitter for splitting signals along your system without any signal loss (highly recommended for splitting Pitch CV).
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
: 12HP
Depth
: 20mm
Current Draw
+12V
: 10mA
-12V
: 10mA