Tags: Attenuator module

Notes: The 333 is a summing and distribution module for Eurorack modular systems.

It is composed of three identical sections, the red, yellow and green, each of those featuring three inputs summing amplifier with three independently buffered outputs.

Derived directly from the CGM creative mixer series, the sum section is DC coupled, allowing the sum of control voltages as well as audio signals.

With an extremely low tolerance in both sum and output sections, it is suitable also for summing quantized voltages like the ones coming out from the quantized outputs of the SAPEL.

In case CVs or audio signals are particularly hot, the 6dB attenuator might be helpful to reduce exactly by 50% the incoming signals.

Red and yellow output are also normalled to the 1st jack socket of the yellow and green input: in this way this module can also work as a 1 to 9 buffered multiple.

Notes: Motion MTR allow you to mix, attenuate and invert signals while having clear visual feedback of their levels.

Each channel can function as:

Audio level control with VU meter
CV attenuator with voltage meter
CV inverter with voltage meter
Each input is normalled to 10v, so you can
use each of them to generate fixed voltages.
Also, the outputs of channels 1 and 2 are summed into Out 3 to be used as a mixer.
Patch it wildly to make it work as an attenuverter with offset, as a mixer, a VU meter or a combination of them all!
This module is our first collaboration with Robin Vincent from Molten modular.

Specs

Current Draw: +12v: 110 mA -12v: 43 mA
Width: 6HP
Depth: 30mm including power connector
Aluminium, heat-treated front panel.
Designed and assembled in Barcelona.
Idea by Robin Vincent

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: Att 1U Passive Variable Signal Attenuator

This passive attenuator has a 100K linear potentiometer that is DC coupled. Perfect for adding attenuators to those 1U/3U modules without.

Width: 6HP
Depth: 18mm

Notes: Wonderland is an 8×8 active patchbay/matrix mixer/switcher for both audio and control voltages. It features:

8 inputs (1 through to 8), each with micro-attenuators (which can be set with a small screwdriver)
8 buffered inverted outputs (A through to H) which are 180o out of phase with the inputs
8 buffered normal outputs (A through to H) which are in phase with the inputs
A switch matrix of 64 push on/push off switches
Any of the 8 inputs can be patched to any of the 8 outputs simply by pressing the corresponding switches. A patched signal will appear at both normal and inverted outputs simultaneously.

A single input can be patched to a single output. A single input can be patched to multiple outputs. Multiple inputs can be patched to a single output. Multiple inputs can be patched to multiple outputs.

Each input features a micro-attenuator which can be set with a small screwdriver. This space saving feature allows you to reduce the volume of an incoming signal without having to resort to external attenuators. If you add many inputs to one output you will of course cause clipping (which may or may not be desirable!), the micro-attenuators are your on-board way around this. I find it useful to leave the micro-attenuators set to 50% (which is how they come pre-set at delivery). Of course, their size is a little bit of a compromise, but they are a useful feature nonetheless. Wonderland’s sister module Looking Glass includes full size input attenuators as well as LED status indicators.

Product Specifications
12V draw
30mA

5V draw
0mA

-12V draw
31mA

Depth
35mm

Width
18HP

Notes: TUL Dual Attenuator/-verter and Offset Generator

Temperature stable and accurate circuit design. The attenuator is exponential and can be regulated more precisely in the initial range.

As an attenuverter, the fader describes an S-curve, i.e. it is in Range +/- 0 finer adjustable. The AC gain is 1, so there is no loss at maximum Att/Attv settings.

The offset potentiometer shift by +/- 5 volts and can be switched to another mode on the back of the PCB using jumpers.

Here the attenuation is towards zero made until it is zero.

The normal mode leaves the voltage at the specified offset value.

Channel A is normalized to channel B so you can get two different CVs.

On the rear side of the PCB, you have a jumper to switch from offset pre fader (good for ADSR) and post fader.

Power consumption: +/- 20mA

Rackspace: 6HP

CV out is (-/+5Volt) if nothing is patched to IN A/B, so you can use it as a manual CV source.

Notes: 1U TRS

Total flexibility for the Befaco 7U or Intellijel cases rear connectors Jacks.
The channels are reversible and can be used independently for Input or Output.
4 Inputs or Outputs (per module) can be obtained by "AND" cables.
Independent tip and ring attenuators are selectable for each channel to convert the Modular Input Level to Line Output Level.

Features

Selectable attenuator per channel
Fully compatible with Intellijel's 7U and Palette cases.
1U Intellijel format.

Specs

Current needs: Passive
Width: 6 HP
Depth: 20 mm (including power connector)
Designed, kits prepared and completed modules assembled in Barcelona

Notes: The Flexshaper is a highly versatile module when it comes to modify evolving voltages in other directions and levels.

Five settings allow you to fold/expand/clip/compress/invert partially or completely any CV or audio signal.

The module can act as an envelope-shaping tool, frequency multiplier, waveshaper, clipper, distortion, limiter, curve changer, and more.

Five CV inputs offer limitless control over the placement of the voltage points for dynamic signal sculpting.

Birth of the product

The idea of the Flexshaper comes from a feature in the Oberheimr Matrix synthesizers called Tracking Generator.

This signal processor was part of the modulation matrix and meant to be virtually inserted between modulation sources and destinations in order to change the shape of the controlling signal.

The Flexshaper applies the same concept using the same 5 shaping points. However, it goes beyond Oberheim's implementation on two main aspects:

It goes fast enough to process signals at full audio rate
The 5 points are dynamically adjustable (CV) in real-time
Besides, the Flexshaper can process adequately bipolar and unipolar Eurorack signals, even changing them one another.

Dimensions
6 HP
21 mm deep

Current Draw
6 mA +12V
7 mA -12V
32 mA 5V

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