ADDAC112 VC Looper & Granular Processor (2021)
It looks like a lab experiment gone right - wires, knobs, and a screen full of granular chaos.
Overview
The ADDAC112 VC Looper & Granular Processor is a full workshop stuffed into 45HP. ADDAC System built it as part of their ADDAC100 Series. It does two jobs: a real-time stereo looper, and a granular engine that works through recorded buffers. It's been called “a bit of a workstation for granular processing.” The control panel is dense. This is not a module you patch once and forget.
It's big. Owners note it might “scare some people off,” and at 45HP that's fair. The front panel is split into three areas: Looper Engine, Granular Engine, and Output Mix. The granular side runs 32 simultaneous grains. An SD card saves and loads banks, so 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, up from the earlier selectable 8 or 16-bit modes, and supports sample rates up to 96kHz. That covers everything from lo-fi grit to clean detail without leaving the module.
It isn't a “plug-and-play magic box.” One user put it this way: “It's less immediate and requires some reading and learning, but it looks like it allows a deeper dive in return.” The Morphagene is often cited as the obvious counterpart. The ADDAC112 VC feels more like a software-inspired environment translated into hardware. It isn't minimal. It gives you a lot of control, and it suits anyone who likes dialing in every parameter by hand.
Specifications
| Manufacturer | ADDAC System |
| Product type | Eurorack module |
| HP size | 45HP |
| Depth | 45mm |
| Power consumption | +12V: 240mA, -12V: 70mA |
| Bit Depth (Firmware v1.9+) | 24 bits |
| Sample Rate options | 8Khz, 11Khz, 16Khz, 22Khz, 44.1Khz, 48Khz, 96Khz |
| Maximum buffer/recording time (Firmware 1.9) | 180s (3 minutes) in stereo, at 44.1khz |
| Maximum number of grains | 32 grains |
| Included accessory | SD Card included |
| Firmware current revision | 1.9.2 (as of May 6th 2025) |
| Panel components | 28 pots, 9 switches, 6 buttons, 1 screen, 41 jack sockets |
Key Features
Looper Engine: Record, Store, Repeat
The Looper Engine is a buffer manager, not a simple record-and-overdub section. It records real-time stereo into a buffer that holds up to three minutes at 44.1kHz. Marketing materials mention “up to five minutes,” but 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. Parameters like rec prob (recording probability) and rec delay add unpredictability, so you can get stutter, glitch, or rhythmic variation without external modulation.
Granular Engine: Tear Sound Apart
Once a loop is in the buffer, the Granular Engine goes to work. Up to 32 grains are available at once, for dense clouds or sparse, stuttering textures. Loop pitch and grain pitch are controlled independently, so the source material and the playback grain can be shifted separately. That gives you evolving harmonies or dissonant layers. A dedicated Grain Envelope control shapes how each grain fades in and out, from sharp clicks to smooth swells. “Deviation” knobs add variation to grain position, size, and pitch. Stereo spread places grains anywhere in the stereo field.
Output Mix: Sculpt the Final Sound
The Output Mix section has individual faders (or knobs, depending on interpretation) for Dry Input, Looper Volume, and Grains Volume. You blend the original signal with the processed loops and granular output from there. Independent wet, dry, and feedback controls let you route the processed sound back into the buffer for self-oscillation or evolving feedback loops. The 1V/Oct inputs let pitch parameters be tracked from a keyboard or sequencer. The panel carries 41 jack sockets, so there's no shortage of CV or audio routing options.
Hands-On Control & Expandability
The ADDAC112 VC is a very physical module. It has 28 pots, 9 switches, and 6 buttons, so you aren't buried in menus. 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. For more tactile control, there's a companion module, the ADDAC112 Controls, that moves all the knobs to a separate panel and turns the main unit into a headless processor. A standalone version for non-modular users, the ADDAC112S, also exists.
Historical Context
The ADDAC112 VC was announced at NAMM 2021, into a Eurorack scene where granular processing had become a focal point. As one forum user put it, “Granular is hot in 2021.” Mutable Instruments' Beads, Instruo's Arbhar, and Qu-Bit's Nebulae were already on the market. Described as the company's “most ambitious module to date,” the 112 VC took a different route from the minimalist approach. It offers a level of control closer to software environments like Max/MSP or Reaktor. The Morphagene, often cited as a comparison point, takes a more tape-loop-inspired route. The ADDAC112 VC feels technical, precise, and deeply programmable.
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