Mia Khoirunisa
The landscape of modular synthesis has long faced a persistent logistical challenge: multitrack recording and comprehensive mixing within the Eurorack format traditionally demand a prohibitive amount of modular real estate. Horizontal space, measured in HP (Horizontal Pitch), is a precious commodity for any synthesizer enthusiast. While traditional computer-based audio interfaces using USB or ADAT protocols offer robust multi-channel capture, they inherently strip away the tactile immediacy, self-sufficiency, and portability that define the modular experience, particularly for live performance or mobile production. Addressing this critical workflow bottleneck, electronic instrument manufacturer ALM/Busy Circuits has rounded out its hardware ecosystem with the official release of "With Mixer," a dedicated companion module designed to integrate seamlessly with the previously launched Stem Ripper multitrack recording system. Together, this modular pairing offers a compact, highly capable solution for capturing and managing multi-channel audio directly inside a Eurorack case.
A Modular Evolution: The Chronology of ALM’s Recording Ecosystem
The introduction of "With Mixer" marks the culmination of a product strategy initiated roughly a year prior with the initial market debut of the Stem Ripper. When ALM/Busy Circuits first released the Stem Ripper, it addressed a major market demand by offering an 8HP module capable of recording up to eight mono or stereo tracks directly to an SD card as multichannel WAV files. Designed for maximum efficiency, the base unit included features such as automatic date-stamped recordings, generous headroom with visual clip indicators, high-capacity SD card compatibility extending up to 1TB, and high-fidelity output options scaling up to 48-bit/48kHz WAV audio.
Shortly after the initial rollout of the Stem Ripper, the manufacturer introduced the Thru output expander. Occupying a mere 2HP of rack space, this auxiliary module provided users with the ability to duplicate eight inputs into eight unbuffered outputs, facilitating complex signal routing without significantly expanding the overall footprint of the rig. However, despite the robust recording prowess of the Stem Ripper and its companion expander, users still navigated a gap regarding comprehensive onboard mixing, stereo imaging, and real-time tactile control without relying on external hardware desks or menu-diving. The release of the 6HP "With Mixer" module bridges this functional gap, transforming the core recording setup into an integrated production and mixing station.
Anatomy of the Ecosystem: Stem Ripper, Thru Expander, and With Mixer
The complete hardware ecosystem now comprises three distinct modular components designed to work in tandem while maintaining an exceptionally modest physical footprint.
The primary hub remains the Stem Ripper. Requiring 8HP of rack space, it functions as the dedicated direct-to-disk multi-channel recorder. Users can patch in up to eight tracks of audio, manage gain staging, and capture performances natively onto removable storage media. Out of the box, the unit ships bundled with a 64GB SD card, ensuring immediate out-of-box usability.
The second component, the Thru Expander, occupies 2HP and serves as a utility node for signal distribution. By splitting the incoming eight tracks into unbuffered duplicates, it allows performers to send identical audio streams to external processing gear, sidechain compressors, or secondary monitoring systems simultaneously.
The newest addition, the 6HP "With Mixer" module, introduces full eight-channel stereo mixing capabilities to the ecosystem. Equipped with a graphical display for visual monitoring, the mixer provides real-time feedback that allows artists to keep close tabs on the Stem Ripper’s recording status and level metering. The module features three dedicated CV (Control Voltage) inputs—which can be internally expanded to handle up to seven—enabling dynamic, voltage-controlled automation of mix parameters. Furthermore, "With Mixer" allows users to save and recall custom mix snapshots, offering a level of preset management traditionally reserved for digital mixing consoles.
Overcoming Workflow Hurdles via USB MIDI Control
One of the historical criticisms facing high-density digital Eurorack modules is the reliance on small graphical displays and deep menu-diving, which can impede rapid creative adjustments during live performance environments. ALM/Busy Circuits addressed this ergonomic challenge by integrating a USB-C host connection into the "With Mixer" architecture.
By plugging a class-compliant external USB MIDI controller—such as the Novation LaunchControl XL MK3—directly into the module, users bypass the necessity of navigating microscopic menus via rotary encoders. This hardware handshake grants immediate, tactile control over physical faders, knobs, and routing assignments. Consequently, producers gain the fluid, hands-on mixing experience of a traditional analog console while retaining the compact structural efficiency and recall capabilities of a digital system.
Market Positioning and Competitive Landscape
The release of ALM/Busy Circuits’ expanded recording and mixing suite arrives in a competitive market segment populated by alternative hardware solutions aimed at DAWless producers. Competing offerings, such as multi-channel recording modules from manufacturers like 1010music and Noise Engineering, have similarly sought to solve the portable multitrack dilemma.
While alternative devices often feature expansive onboard digital signal processing (DSP)—including complex effects routing, advanced sidechaining, and USB audio streaming integration—they often require distinct compromises regarding HP consumption or financial investment. The 1010music ecosystem, for instance, provides robust internal effects processing and digital mixing tools, whereas Noise Engineering modules lean heavily into analog, hands-on control layouts that command substantial rack space and budgetary outlay.
Industry analysts note that the ALM/Busy Circuits combination of the Stem Ripper (8HP), Thru Expander (2HP), and With Mixer (6HP) strikes a strategic balance. Requiring a cumulative footprint of just 16HP when fully configured, the system delivers multitrack capture, signal splitting, and stereo mixing without forcing musicians to sacrifice valuable module space that would otherwise house oscillators, filters, or modulation sources.
Availability and Industry Implications
The complete hardware suite—consisting of the Stem Ripper, the Thru Expander, and the newly launched With Mixer—is currently available through specialized modular retailers, including Perfect Circuit. Promotional pricing strategies implemented by select distributors for the foundational Stem Ripper and Thru Expander components have further lowered the barrier to entry for modular artists seeking to upgrade their live recording capabilities.
The broader implications of this release highlight a shifting paradigm within electronic music production. As Eurorack users increasingly demand self-contained workflows capable of transitioning seamlessly from studio composition to live stage performance, manufacturers are placing heightened emphasis on compact utility modules that bridge the gap between pure synthesis and professional post-production. By providing an integrated ecosystem that handles tracking, distribution, and stereo summing within a minimal physical space, ALM/Busy Circuits has established a formidable benchmark for portable modular production infrastructure.
