Analogue Systems RS 380
Twelve HP Eurorack module with an LFO, noise, S&H, and VCA in one panel
Overview
The Analogue Systems RS 380 is 12HP wide. Retailers and documentation list it as both the RS 380 and the RS 380N. It's a composite Eurorack module built as a central point for modulation routing, and it doesn't pretend to be anything else. Owners report it's a "set and forget, then suddenly you can't live without it" module, with a straightforward layout that makes complex patches easy. Sources call it a "great utility module" and "incredibly versatile." The RS 380N (as it often appears) combines four distinct sub-modules. Each works on its own, and they get more useful chained together. There are no digital brains and no menu diving. Control is immediate and hands-on.
The module is a multifunction dual bus unit. That means shared signal paths and internal routing, so you can feed modulation sources into multiple destinations without using up external multiples or patch cables. The exact timeline of its release is undocumented. The RS 380 came out while Analogue Systems was building its reputation for utilitarian Eurorack building blocks. It isn't a lead voice or a filter. It shapes movement, texture, and unpredictability in patches from behind the scenes. You can modulate a filter cutoff with sample-and-hold randomness, inject noise into a VCA for percussive bursts, or sweep an LFO across multiple parameters at once.
Specifications
| Manufacturer | Analogue Systems |
| Module width | 12HP |
| Current Draw | 60 mA +12V: 60 mA -12V: 0 mA 5V |
| Contains | a voltage controlled LFO, a noise generator, a sample-and-hold type random generator and a VCA |
Key Features
Voltage Controlled LFO with Switchable Triangle and Square Waves
The VC-LFO at the heart of the RS 380 offers hands-on control over rate and waveform selection, with switchable triangle and square outputs. Unlike fixed-rate LFOs, this one responds to control voltage, allowing tempo-synced modulation or dynamic sweeps driven by envelopes or sequencers. Its output can feed multiple destinations via the dual bus system, making it a central hub for rhythmic modulation—think wobbling basslines, panning effects, or filter sweeps that evolve over time.
Noise Generator with Dedicated Output
Next to the LFO sits a dedicated analog noise source, a steady stream of stochastic voltage. The exact coloration (white, pink, etc.) isn't specified in available sources. Users report it pairs well with the VCA for organic transients or noise bursts triggered by gates.
Sample-and-Hold Type Random Generator
The sample-and-hold circuit is triggered by internal or external clocks and outputs stepped random voltages. It's technically labeled a "sample-and-hold type random generator," but it behaves like classic S&H. That suits generative sequences, pitch randomization, or chaotic parameter modulation. With the dual bus design, it can modulate multiple parameters at once with the same random voltage set.
Integrated VCA for Dynamic Control
The voltage-controlled amplifier makes the module self-contained. It isn't meant as a primary audio VCA. It's better at shaping control voltages or processing modulation signals. You can use it to attenuate or amplify LFO depth dynamically, gate noise bursts, or crossfade between modulation sources. Since it's part of the same module, internal routing cuts down on cable clutter, especially when modulating the VCA's gain with the S&H or LFO.
Dual Bus Concept for Internal Signal Routing
The dual bus architecture of the RS 380N is easy to overlook. It lets internal signals, like the LFO or noise, be routed to multiple sub-modules without external patching. That changes the patching workflow, since complex modulation chains need minimal cables.
Collectibility & Value
Current retail pricing for the Analogue Systems RS 380 ranges from $209.95 to £226.00 (approximately $262.84 USD), with some outlets listing it as high as $258. No original release price is documented. No common failures or maintenance issues are reported in available documentation, though as with all Eurorack modules, power stability and proper rail alignment are critical.
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