Metasonix2000sMonoModular / Patch-Only$$$Premium($800–3,000)
Metasonix R-54 Rackmount Beast
Industrial and experimental producers wanting a genuinely aggressive, unpredictable tube-based Eurorack filter module.
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No MIDI on the Metasonix R-54 Rackmount Beast? Here's how to bridge it
Free tool — see exactly what kind of converter connects it to a modern MIDI setup.
Strengths
- A genuinely unusual boutique module built around real vacuum tubes rather than solid-state circuitry, unique in the Eurorack world
- Its deliberately harsh, nonlinear tube-driven character gives genuinely aggressive, unpredictable filtering few other modules offer
- Became a real cult favorite among industrial and experimental producers specifically for this raw tube aggression
Trade-offs
- Genuine tube-based module requires more careful handling and generates real heat compared to solid-state Eurorack modules
- Its deliberately harsh, aggressive character is genuinely a specialist tool, not a general-purpose filter
Full Specifications
| Specification | Value |
|---|---|
| Brand | Metasonix |
| Model | R-54 Rackmount Beast |
| Era | 2000s |
| Typical Price Tier | Premium ($800–3,000) |
| Voice Architecture | Modular (effects/voice module) |
| Polyphony | Monophonic |
| Oscillator Type | N/A (tube-based filter/distortion module) |
| Filter | Vacuum tube resonant filter (highly nonlinear) |
| Keys | None (module/sequencer only) |
| Built-in Sequencer | No |
| MIDI Equipped | No |
| Patching | 1/4-inch + Eurorack CV patch points (boutique tube module) |
A relative used-market guide, not a live quote — real prices vary by condition, region, and timing. Check the Reverb/eBay links on any item for current listings.
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Match Score Explorer
Weight what matters to your workflow. Every deck is re-scored live against your priorities, benchmarked against the Metasonix R-54 Rackmount Beast.
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This deckMetasonix R-54 Rackmount Beast
Match42
Flexibility65
Portability55
Ease of Use38
Tonal Neutrality10
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