ADDAC112 VC Looper & Granular Processor (2021)

It looks like a lab experiment gone beautifully right—wires, knobs, and a screen glowing with granular chaos.

Overview

If you’ve ever wanted to tear apart sound in real time, stretch it into clouds, and stitch it back together with voltage, the ADDAC112 VC Looper & Granular Processor isn’t just another Eurorack module—it’s a full workshop stuffed into 45HP. This thing doesn’t whisper “granular synthesis”; it shouts it from a control panel so dense it makes your eyes cross. Built by ADDAC System as part of their ADDAC100 Series, it’s a dual-purpose beast: a real-time stereo looper and a granular engine that chews through recorded buffers with surgical precision. It’s been called “a bit of a workstation for granular processing,” and that’s not hyperbole—it’s understatement. The module doesn’t just respond to CV; it invites you to wrestle with it, tweak it, and get lost in its layers. It’s not the kind of module you patch once and forget. You live in it.

And yeah, it’s massive. Owners note it might “scare some people off,” and at 45HP, that’s fair. But that size isn’t wasted space. Every pot, switch, and jack serves a purpose. The front panel is split into three clear domains: Looper Engine, Granular Engine, and Output Mix—each a self-contained zone of sonic manipulation. You’re not just processing audio; you’re curating it, looping it, then atomizing it into 32 simultaneous grains. The module includes an SD card for saving and loading banks, meaning your favorite textures and loops can be archived and recalled. Firmware version 1.9.2 (as of May 6th, 2025) pushes the bit depth to 24 bits, a significant upgrade from earlier selectable 8 or 16-bit modes, and supports sample rates up to 96kHz. That kind of flexibility means you can go from lo-fi grit to pristine detail without leaving the module.

But let’s be honest—this isn’t a “plug-and-play magic box.” One user put it perfectly: “It’s less immediate and requires some reading and learning, but it looks like it allows a deeper dive in return.” Compared to something like the Morphagene, which is often cited as an obvious counterpart, the ADDAC112 VC feels more like a software-inspired environment translated into hardware. It’s not trying to be cute or minimal. It’s trying to give you control—lots of it. And if you’re the type who gets satisfaction from dialing in every parameter by hand, this is your playground.

Specifications

Key Features

Looper Engine: Record, Store, Repeat

The Looper Engine isn’t just a simple record-and-overdub section—it’s a buffer manager with attitude. It handles real-time stereo recording into a buffer that can hold up to three minutes at 44.1kHz (though marketing materials mention “up to five minutes,” the technical spec from ADDAC System confirms 180 seconds under those conditions). You can build a list of loops, save them to the included SD card, and recall them later as source material for granular processing. It supports dual mono input, giving you flexibility in how you feed audio into the system. Parameters like rec prob (recording probability) and rec delay add a layer of unpredictability, letting you introduce stutter, glitch, or rhythmic variation without external modulation. This isn’t passive looping—it’s active curation.

Granular Engine: Tear Sound Apart

Once you’ve got a loop in the buffer, the Granular Engine goes to work. With up to 32 grains available at once, you can create dense clouds or sparse, stuttering textures. The engine allows independent control over loop pitch and grain pitch, so you can shift the source material and the playback grain independently—a powerful feature for creating evolving harmonies or dissonant layers. There’s a dedicated Grain Envelope control, which lets you shape how each grain fades in and out, from sharp clicks to smooth swells. “Deviation” knobs introduce variation in grain position, size, and pitch, adding organic movement. And with stereo spread control, you can place grains anywhere in the stereo field, making the output feel immersive and spatial.

Output Mix: Sculpt the Final Sound

The Output Mix section is where everything comes together. It gives you individual faders (or knobs, depending on interpretation) for Dry Input, Looper Volume, and Grains Volume—so you can blend the original signal with the processed loops and granular output exactly how you want. Independent wet, dry, and feedback controls mean you can route the processed sound back into the buffer for self-oscillation or evolving feedback loops. The 1V/Oct inputs ensure that pitch parameters can be tracked from a keyboard or sequencer, integrating the module into melodic workflows. And with 41 jack sockets on the panel, you’re not starved for CV or audio routing options. This is a module built for patching, not just playing.

Hands-On Control & Expandability

What sets the ADDAC112 VC apart from more abstract granular modules is its sheer physicality. With 28 pots, 9 switches, and 6 buttons, you’re not buried in menus—you’re twisting, flipping, and pressing. There’s a screen for navigation, but the interface is designed to minimize menu diving. The simple strip-down menu is mainly used for loading and saving banks, keeping the focus on real-time manipulation. For those who want even more tactile control, there’s a companion module—the ADDAC112 Controls—that offloads all the knobs to a separate panel, turning the main unit into a headless processor. And for non-modular users, a standalone version (the ADDAC112S) exists, proving this architecture was designed to be flexible from the start.

Historical Context

The ADDAC112 VC was announced at NAMM 2021, arriving into a Eurorack scene where granular processing had become a focal point. As one forum user put it, “Granular is hot in 2021.” Modules like Mutable Instruments’ Beads, Instruo’s Arbhar, and Qu-Bit’s Nebulae had already carved out space in the market, but ADDAC aimed higher. Described as the company’s “most ambitious module to date,” the 112 VC didn’t just follow trends—it tried to redefine what a hardware granular processor could be. Instead of a minimalist approach, it embraced complexity, offering a level of control more akin to software environments like Max/MSP or Reaktor. The Morphagene, often cited as a comparison point, takes a more poetic, tape-loop-inspired route; the ADDAC112 VC, by contrast, feels technical, precise, and deeply programmable. It wasn’t trying to be the easiest entry point—it was trying to be the most capable.

eBay Listings

As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.

Related Models

• ADDAC 200PI Pedal Integrator
• ADDAC 816
• ADDAC 100 Series
• ADDAC 101 .WAV Player
• ADDAC 102
• 4ms Ping
• ADC 27
• 2hp LPG V2
• ALM AXON-2
• AMS DMX 2000