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Let There Be More Light: ADDAC System Extends its Expressive Controls Series with ‘Light to CV Module

Lisbon, Portugal, January 4, 2021 — ADDAC System announces its first Eurorack module for 2021, the ADDAC308 Light to CV. A distinctly unconventional module , Light to CV. This module — measuring just 4hp — actually converts incoming light into two bipolar CV Streams, using an external light sensor, which is enclosed in a jack socket in order to be used with any standard jack cable. This can be placed anywhere outside the Eurorack frame.

With its Light to CV module, ADDAC System extends its Expressive Controls series, which provides synthesists with the tools to control their sounds through unconventional means. This can result in inspirational — if sometimes unpredictable — sonic outcomes when combined with other Eurorack modules.

The two bipolar CV streams include the output signal (more light = higher CV output) and the inverted output (more light = lower CV output).  There are several ways that users can adjust the CV Output’s signals:

  • Sensitivity: Adjusts the light sensor sensitivity to light. The Higher the sensitivity, the better the module will respond to low light situations
  • Response: Three fixed settings (medium/fast/slow) set the slew applied to the raw signal coming from the sensor.
  • Gain: Sets the gain for both outputs
  • Offset: Adjusts the offset for the main Output.
  • Inverted offset: Adjusts the Offset for the Inverted Output.


Separately, ADDAC unveiled its ADDAC218 Attenuverters utility, a powerful 4hp Eurorack module, which by definition enables users to attenuate and/or invert the polarity of a signal. Yet another module in the ADDAC200 family of CV Utilities, this module features three independent attenuverters — each with its own input, output and dedicated 13mm knob.

Both models can be ordered directly via the ADDAC System website or purchased through ADDAC System’s network of authorized dealers.  For more information please visit

About ADDAC System

ADDAC develops advanced instruments for sonic expression. The company started back in 2009 with an ambition to explore the potential crossover between analog synthesizers and computers. Because its first creations sparked a lot of attention, ADDAC decided to work hard and put them in customers’ hands. Today our product line is focused on a new breed of hybrid synths, that make use of the best of both the digital and analog worlds. We’ve grown to be able to reach thousands of enthusiastic clients, friends and collaborators. Always looking into conceptualizing and developing the most exquisite instruments, we hope you’re able to join and share this passion with us.

Our solutions can be found in many personal studio throughout the world, owned by musicians in several planes of stardom. We especially appreciate seeing them being used in a very wide range of musical genres.