ALM Busy Circuits AXON-II ()
A small 8HP module that adds hands-on CV control and performance triggers to Pamela's Pro Workout or Squid Salmple.
Overview
The AXON-II is not a sound source. It doesn't generate tones or sequences. It gives you four assignable CV inputs with dedicated offset knobs and two big performance buttons that click like arcade triggers. It works as a command module for the modules you already own. Slot it next to your Pamela's Pro Workout or Squid Salmple and you can perform the parameters instead of just tweaking them.
ALM Busy Circuits has always built utility modules with some attitude. While other brands chase oscillator wars or filter emulations, ALM makes tools that look designed by someone who plays live. The AXON-II takes the foundation of the AXON-1 - four assignable CV inputs - and adds tactile control. The offset knobs are performance controls, not just trim pots. They let you nudge modulation depth on the fly without menu diving or awkward patching. The two extra buttons do double duty: momentary or latched, assignable to functions like clock reset, pattern advance, or sample triggering if you're running it with the Squid. It makes no sonic fireworks.
The AXON-II doesn't replace the AXON-1. It complements it. Stack both and you have eight assignable CV inputs, with half of them under direct knob control. That is a lot of flexibility for a narrow footprint, and at 8HP it doesn't take much rack space. Use it to tweak filter cutoff on a live sample, modulate delay feedback in real time, or launch sequence variations with a thumb press.
Specifications
| Manufacturer | ALM Busy Circuits |
| Production Years | |
| Module Type | Expander |
| HP Size | 8 |
| Depth | 35mm |
| Current Draw +12V | 30mA |
| Current Draw -12V | 10mA |
| Compatibility | Pamela’s PRO Workout, Squid Salmple, MFX, MCO |
| CV Inputs | 4 assignable |
| Offset Controls | 4 manual knobs |
| Performance Buttons | 2 assignable push buttons |
| Connectivity | Dedicated ribbon cable connection to host module |
| Color | Black front panel with white labeling |
| Mounting Options | Standard Eurorack |
| Manual | Available on ALM website |
| Software Version | Requires firmware update on host module for full functionality |
Key Features
Performance-Oriented Control Layout
The layout is simple: four knobs, two buttons, no labels etched in stone. The functions are soft-assigned through the host module's menu system, so once they're mapped they're immediate. The offset knobs are performance tools, not just level setters. Run a sample through the Squid Salmple and use one knob to sweep pitch in real time and another to modulate playback speed, all while watching the audience. The buttons are satisfyingly clicky and built for stage use. Assign one to reset a sequence and the other to toggle between pattern banks.
Seamless Integration with ALM Ecosystem
This is not a universal controller. The AXON-II talks only to specific ALM modules: Pamela's PRO Workout, Squid Salmple, MFX, and MCO. Within that group it extends the host's interface instead of just adding inputs. Paired with Pamela's PRO Workout, it can control envelope depth, LFO rate, or clock division on the fly. With the Squid Salmple, it becomes a real-time modulation station for sample parameters. The connection is a ribbon cable that plugs into the host's rear expansion port, for low-latency, noise-free communication. No extra patch cables are needed and there are no voltage conversion issues.
Compact Design, Maximum Utility
The AXON-II uses its 8HP well. There are no flashy lights or redundant controls. The knobs are spaced for easy access, even with adjacent modules, and the buttons are tall enough to hit blindly. The black panel with crisp white labeling keeps the look clean and professional. It also draws minimal current (30mA on +12V, 10mA on -12V), so it won't tax your power supply, even in a tightly packed system.
Historical Context
The AXON-II arrived as Eurorack players were moving beyond static patches and toward live performance. Modules were becoming instruments, not just sound generators or processors. ALM responded with tools for the performer instead of new oscillators or filters. The AXON-II doesn't make sound. It makes control physical.
It sits alongside the Squid Salmple and Pamela's PRO Workout as part of a suite designed for dynamic, hands-on interaction. Released after the AXON-1, it answered user feedback: more CV inputs are great, but they needed to be controllable without repatching. That led to the offset knobs and performance buttons, turning a utility expander into a performance interface. It is not a standalone module.
Competitors like Intellijel and Make Noise were building performance-oriented systems too, but often through larger, more expensive modules. The AXON-II delivers its functionality in a minimal footprint.
Collectibility & Value
The AXON-II isn't rare, but it isn't always easy to find. As a niche expander, it doesn't attract the same resale frenzy as sound-generating modules. New units typically list between $250 and $280 USD, depending on the retailer. Used prices hover around $180-$220, assuming the module is fully functional and includes the ribbon cable. Missing cables or non-responsive buttons can drop the value fast, since the module can't be used without its physical connection to the host.
There are no known fatal flaws in the design. Service technicians observe that the ribbon cable connection can degrade over time if frequently unplugged, especially in live rigs. Owners report that gently seating the cable and avoiding repeated removal helps prevent issues. The buttons are sturdy, but like any mechanical switch they can eventually wear out with heavy use. Replacements are straightforward for those comfortable with soldering.
If you're buying used, test every knob and button function through the host module's menu. Some early firmware versions had mapping glitches, so make sure the host is updated. Also check that the offset knobs respond smoothly across their range, with no jumps or dead zones. The AXON-II relies entirely on its host, so collectors usually seek it only as part of a bundle or when expanding an existing ALM setup.
The AXON-II has no moving parts beyond the knobs and buttons, and no internal software to become obsolete. It is a stable, low-maintenance module. It won't appreciate like a vintage Roland, but it should hold its value among modular users who prioritize function.
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