ADDAC System ADDAC112SF (2021–)

A sleek, powered desktop shell that turns a complex Eurorack looper into a standalone sound-sculpting workstation

Overview

It doesn’t make a sound, it doesn’t process audio, and yet the ADDAC112SF feels like one of the most liberating modules in a rack—because it’s the key that unlocks mobility. This isn’t a synth, not even a module, but a 45HP powered desktop frame built for one very specific purpose: to let the ADDAC112 VC Looper and Granular Processor breathe outside a Eurorack case. And that changes everything. Suddenly, that sprawling, CV-drenched granular engine isn’t chained to your modular rig. You can set it on a café table, plug in a microphone, loop a passing train, and start fracturing it into shimmering particles before your coffee gets cold. It’s the rare accessory that transforms not just how you use a piece of gear, but where and why.

Designed by the Portuguese outfit ADDAC System—known for their bold, hands-on approach to modular synthesis—the ADDAC112SF is a purpose-built home for the ADDAC112, a dual-module powerhouse that combines a 5-minute voltage-controlled looper with a full-featured granular processor. Without this frame, the 112 needs a Eurorack case, power supply, and patch cables just to function. With it, the module becomes a self-contained instrument. The frame supplies power via an external adapter, offers a clean mounting solution, and keeps all the I/O accessible on one side, making it ideal for live performers, field recordists, or anyone who wants granular synthesis without the rack. It’s not just a case—it’s a declaration of independence.

But let’s be clear: the magic isn’t in the frame. The frame is just the enabler. The real star is the ADDAC112 itself, a module so feature-rich it borders on being a Eurorack DAW in miniature. With a high-resolution OLED display, dedicated mix controls for dry, looped, and granular outputs, and deep CV integration, it’s one of the most intuitive granular tools in modular synthesis. The 112SF doesn’t add functionality—it removes friction. And in doing so, it reveals how liberating it can be when a complex instrument is finally allowed to exist on its own terms.

Specifications

Key Features

A Frame That Frees the Module

The ADDAC112SF isn’t trying to be flashy. It’s a compact, no-nonsense enclosure made from black powder-coated steel, designed to cradle the ADDAC112 module securely while keeping all front-panel controls and patch points fully accessible. What makes it special is its completeness: it includes an external 12V power supply, so the only thing you need to get started is the module itself and a place to put it. There are no rack ears, no options for Eurorack integration—this is strictly a desktop solution. But that limitation is the point. By removing the need for a case, power distribution, and cabling, ADDAC has turned a modular-only processor into a portable audio instrument. It’s the difference between owning a high-end camera and having it permanently mounted on a studio tripod versus slipping it into a bag and heading out into the world.

Optimized for Performance and Patching

Every design choice in the 112SF prioritizes usability. The module is mounted at a slight angle, improving visibility of the OLED screen during live performance. The rear panel routes all I/O to a single zone, so you can keep patch cables tidy and minimize strain on jacks. The frame’s depth—just 55mm—makes it easy to fit on crowded desks or in travel cases. And because it’s specifically shaped for the ADDAC112, there’s no wasted space or awkward overhang. This isn’t a generic enclosure; it’s a tailored suit. Even the finish resists fingerprints and minor scratches, a small but appreciated detail for something meant to be handled regularly.

The Gateway to Standalone Granular Synthesis

While most granular modules demand a full modular system to be useful, the 112SF flips the script. Pair it with the ADDAC112, and you’ve got a standalone granular workstation capable of recording, looping, and mangling audio with the same depth as any rack-based setup. You can plug in a microphone, guitar, or line-level source, capture a loop, then slice it into grains with voltage control over pitch, density, position, and randomness—all while seeing the waveform and grain placement on the OLED display. The ability to save loops and presets to SD card means you can show up with a library of textures ready to go. For experimental musicians, sound designers, or ambient composers, this is a game-changer: granular synthesis without the commitment of a full modular rig.

Historical Context

The ADDAC112SF arrived in 2021 as part of a broader shift in Eurorack culture—a growing appetite for standalone functionality. For years, modular synthesis remained stubbornly insular: if you wanted to use a module, you needed a case, power, and a patch cable for everything. But as modules became more complex—especially digital ones with screens, storage, and internal processing—the idea of using them outside a rack started to make sense. The ADDAC112 was one of the first granular modules to offer this level of autonomy, and the 112SF was ADDAC’s answer to the obvious question: “Can I use this without a case?”

At the time, competitors like Mutable Instruments’ Beads or Qu-Bit’s Nebulae required Eurorack integration and offered less hands-on control. The ADDAC112, by contrast, felt more like a software granular engine translated into hardware—with dedicated knobs for nearly every parameter and a display that showed grain placement in real time. But that complexity came with a cost: 45HP of space and a steep learning curve. The 112SF didn’t reduce the cost, but it did reduce the barrier to entry. It said, “You don’t need a full system to explore granular synthesis.” That philosophy aligned with a wave of semi-modular and desktop Eurorack products from companies like Make Noise, Intellijel, and Critter & Guitari, all trying to make modular ideas more accessible. The 112SF wasn’t the first of its kind, but it was one of the most focused—a single-purpose frame for a single, powerful module.

Collectibility & Value

The ADDAC112SF isn’t a standalone product you can buy on its own—it’s only available as part of a bundle with the ADDAC112 module. That means its collectibility is tied entirely to the demand for the 112 as a standalone unit. As of 2026, the complete ADDAC112 + 112SF system typically sells for between $800 and $950 on the used market, depending on condition and included accessories. Units with the original power supply and packaging hold more value, especially given the difficulty of sourcing a replacement frame.

Because the 112SF is a passive enclosure, it has no serviceable parts and almost no failure points. The main concerns are cosmetic: scratched panels, loose mounting screws, or bent jacks from rough handling. The real risks lie in the ADDAC112 module itself, which has been known to experience firmware instability—especially in early production runs. Some users report crashes or SD card read errors, though these are often resolved with firmware updates. Before buying, test the SD card slot, verify that all knobs and buttons respond, and confirm that the OLED display is free of dead pixels.

For collectors, the 112SF represents a niche but growing category: modular gear that transcends the rack. It’s not rare, but it’s not common either. If you see one listed without the ADDAC112 module, treat it with skepticism—there’s little demand for the frame alone. But if you’re after a portable granular looper with deep CV control and real-time visual feedback, the 112SF bundle remains one of the most complete solutions ever made. It’s not the cheapest way into granular synthesis, but it might be the most liberating.

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