ADDAC System has launched two new compact Eurorack modules that aim to streamline integrating external studio gear with your modular system. Dubbed the ADDAC219IN and ADDAC219OUT, these tiny but powerful modules take up only 3HP of rack space each, allowing users to replace those clunky 1/4-inch cables while managing line and synth level conversions effortlessly.

Getting to Know the ADDAC219IN
The ADDAC219IN is purpose-built for anyone looking to bring external stereo equipment into the modular realm without fuss. With a 3.5mm TRS stereo input, this module efficiently splits the signal into two separate mono outputs (Left and Right), while simultaneously converting the line-level input to synth-level output—perfect for direct use with your modular system. Its slim design and dual independent input sections mean it’s ready to handle two different stereo sources at once.
Whether you’re plugging in a drum machine or a keyboard, the ADDAC219IN makes sure the transition into modular territory is as smooth as possible.
Technical Specifications for ADDAC219IN:
- Size: 3HP
- Depth: 4 cm
- Power Consumption: 20mA +12V / 20mA -12V
The Opposite Side: ADDAC219OUT
On the flip side, the ADDAC219OUT handles getting signals out of your modular setup and into your traditional studio environment. It merges two TS mono signals into a single TRS stereo output, while converting synth-level signals back down to line level. This makes the 219OUT the perfect bridge to send your modular sounds out to a mixer, audio interface, or any other studio gear. Like its sibling, it also features multiple sections—three independent inputs in this case—making it easy to manage several stereo signals at once.
Technical Specifications for ADDAC219OUT:
- Size: 3HP
- Depth: 1.5 cm
- Passive module (no power required)
Practical and Affordable

Both the ADDAC219IN and ADDAC219OUT are designed to offer maximum utility without breaking the bank. Priced at €60 and €70 respectively, these modules provide an affordable way to keep your studio neat and efficient without compromising functionality. They’re particularly useful for users who want to avoid clutter and simplify signal routing, making them ideal tools for any setup, whether in the studio or on the go.
For more information or to place an order, visit ADDAC219IN Product Page and ADDAC219OUT Product Page.
About ADDAC System
Founded in 2009, ADDAC System has been pushing the boundaries of sound with its hybrid synthesizers and modules that blend the best of digital and analog worlds. What began as an exploration of the crossover between analog synths and computers has evolved into a diverse product lineup that caters to musicians and producers at all levels. With a focus on exquisite design and sonic versatility, ADDAC’s products are now found in studios around the world.
Whether you’re just starting out or are a seasoned modular enthusiast, ADDAC System’s offerings are crafted to inspire and elevate your musical creations. Join us as we continue to bridge the gap between technology and musicality, and bring the most innovative instruments into your hands.
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