ADDAC System 112 (2021–)

A five-minute audio canvas that turns looping into living, breathing granular sculpture—knob-per-function clarity meets deep, unstable magic.

Overview

It starts with silence, then a flicker on the OLED: a waveform slowly forming as your synth drone bleeds into the ADDAC 112’s buffer. You press record, and suddenly you’re not just capturing sound—you’re seeding a forest of grains, each one a splinter of time waiting to be scattered, stretched, or shattered. This isn’t just another granular module; it’s a dual-module ecosystem split between control and connectivity, where every parameter feels like it has physical weight. The 112 doesn’t hide behind menus or cryptic workflows. Instead, it lays everything bare: knobs for grain size, density, pitch, position, randomness, and stereo spread, each with a secondary "deviation" knob that introduces controlled chaos. You can see it all unfold in real time on the screen—the playhead crawling across the loop, grains blinking into existence like fireflies in the dark. It’s rare for a Eurorack module to feel both immediate and infinitely deep, but the 112 pulls it off by making granular synthesis tactile, visual, and musically intuitive.

Built as two separate panels—32 HP for the controls (112A) and 13 HP for the I/O jacks (112B)—this setup is a quiet revolution in ergonomics. Patch all your audio and CV connections into the 112B, tuck it behind your case or on a lower row, and leave the main panel free for performance. No more cables obscuring your knobs. No more reaching around a jungle of patch cords to tweak a parameter mid-performance. It’s a simple idea, but one that transforms how you interact with the module. You’re not just programming a sound; you’re conducting it, hands-on, like a modular maestro. The screen, often a red flag for menu diving in digital modules, is used sparingly and smartly—mostly for loading banks, saving presets, or visualizing grain activity. The rest is pure knob-to-sound immediacy.

And the sound? It ranges from delicate ambient smears to glitchy, stuttering chaos, all while retaining an uncanny clarity. Unlike some granular processors that smear audio into indistinct clouds, the 112 preserves the character of the source. Feed it a clean sine wave and you’ll hear each grain as a distinct sonic tick; feed it a vocal sample and the words will fracture into shimmering echoes without losing their soul. The granular engine syncs to the loop tempo or runs free, with options for rhythmic precision or organic drift. You can constrain playback to musical scales via CV, or let it wander freely across the audio buffer. The mix section gives independent control over dry input, loop playback, and granular output, letting you layer the original signal with its fragmented offspring. Run it into reverb and delay, and the results become vast, evolving soundscapes that feel less like patches and more like environments.

But let’s be honest: this is not a stable, set-and-forget module. It’s a living, occasionally temperamental instrument. Firmware updates have been frequent, and crashes—while not constant—are reported by enough users to be a real consideration. Some owners describe frozen screens, unexpected shutdowns, or audio artifacts during recording, especially with older firmware. The trade-off is clear: you gain unprecedented hands-on control and visual feedback at the cost of occasional digital fragility. If you’re playing live and need bulletproof reliability, the 112 might test your nerves. But if you’re in the lab, building sound from the ground up, its quirks feel less like flaws and more like part of its character—like the slight instability of an analog oscillator that somehow makes it more musical.

Specifications

Key Features

A Visual Granular Playground

The OLED screen isn’t just a status monitor—it’s a window into the soul of the granular process. As grains scatter across the loop buffer, you see them as tiny pulses stacked along the waveform, their density and timing responding in real time to your knob turns and CV inputs. This visual feedback transforms abstract parameters into something tangible. When you increase grain randomness, you watch the pulses jitter and spread; when you reverse playback direction, the playhead crawls backward like a rewinding tape. It’s the closest you’ll get to *seeing* granular synthesis in motion without opening a DAW. This isn’t just helpful—it’s inspirational. A quick glance can spark new ideas: maybe you’ll sync grains to a sequencer, or use a random LFO to modulate grain position, watching the pattern evolve on screen. The display also shows loop selection, bank status, and file navigation, but it’s never buried in submenus. Most functions are one-button-deep, and the encoder doubles as a push-button for quick access.

Two-Panel Design Done Right

Splitting the module into control (112A) and I/O (112B) sections isn’t just a gimmick—it’s a thoughtful reimagining of how we interact with complex digital modules. The 112B houses all audio inputs (including a stereo 3.5mm line input), outputs, CV inputs, and power connections, freeing the main panel from cable clutter. This means you can place the 112B behind your case or on a separate row, keeping the performance-focused 112A clean and accessible. It’s a small detail that makes a huge difference during live sets or deep sound design sessions. No more fumbling to adjust a knob obscured by a patch cable. No more rerouting just to tweak a setting. The separation also makes integration easier—especially in crowded cases—since you can route all your audio and CV lines to the rear or side, leaving the front panel for expressive control. It’s a design philosophy that other complex modules should study.

Firmware Forks and Memory Trade-Offs

In mid-2025, ADDAC released firmware 1.9, which brought significant performance improvements—including double the grain count and 24-bit internal processing—but at a cost: maximum loop memory dropped from 5 minutes to 3 minutes in stereo at 44.1 kHz. Rather than force users into this trade-off, ADDAC did something refreshingly honest: they forked the firmware. Now, users can choose between ADDAC112_V1.9.bin (faster, more grains, less memory) and ADDAC112_V1.9_legacy.bin (slower, fewer grains, full 5-minute buffer). This isn’t just technical flexibility—it’s respect for user choice. If you’re doing ambient drones and need long loops, stick with legacy. If you’re mangling short samples into dense clouds, go for the new version. The caveat? Banks created with the old firmware may exceed the new memory limit, requiring manual editing on a computer. But the option to choose—rather than be locked into a single path—is rare in modular, and it speaks to ADDAC’s commitment to user agency.

Historical Context

When the ADDAC 112 launched in 2021, the Eurorack granular landscape was already crowded. Mutable Instruments’ Beads had set a high bar for elegance and efficiency, Qu-Bit’s Nebulae offered lush, evolving textures, and Instruo’s Arbhar brought a raw, lo-fi aesthetic. The 112 didn’t try to beat them at their own game—it rewrote the rules. Instead of minimizing controls or abstracting parameters, it embraced complexity with a knob-per-function layout and a visual interface that felt more like a standalone granular workstation than a modular module. Its closest spiritual relative might be the Waldorf Iridium, but in a 45 HP Eurorack format. ADDAC, a Portuguese company known for bold, functional designs, positioned the 112 as their most ambitious module to date—not just a tool, but a compositional environment. It arrived at a moment when modular users were hungry for deeper integration between digital processing and analog control, and the 112 delivered with extensive CV modulation options and real-time visual feedback. While not the first to combine looping and granular synthesis, it was the first to make both feel equally central, equally performable, and equally deep.

Collectibility & Value

The ADDAC 112 isn’t vintage in the traditional sense—production began in 2021, and it’s still actively supported—but it’s already earned a cult following among modular enthusiasts who value hands-on control and visual feedback. On the secondhand market, prices hover around $500–$580, depending on condition and whether the original box, SD card, and cables are included. Units described as “mint” or “barely used” often command closer to $600, especially if they come with custom-colored panels (a factory option in red, green, blue, bronze, or silver). The real cost of ownership isn’t the purchase price, though—it’s the time spent managing firmware. Buyers should assume they’ll need to update to the latest version (1.9.2 as of 2025), which requires a proper USB data cable (not just a charging cable) and a Chrome browser for bootloader updates. Some users report issues with Windows drivers, requiring third-party tools like Zadig to force the correct driver installation. There’s also the risk of firmware conflicts: if you buy a used unit with old banks, they may not load on newer firmware without editing. Service technicians observe that hardware failures are rare, but software instability—crashes, frozen screens, unexpected shutdowns—is common enough to warrant caution. For studio use, it’s a powerful, inspiring tool. For live performance, it demands backup plans. When buying, test the screen, check for firmware version, and verify that all knobs and jacks respond. Avoid units with a history of random shutdowns unless you’re prepared to troubleshoot. The 112 isn’t broken, but it’s not fully baked—and for many, that’s part of its charm.

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