Cwejman VCO-2RM

$1,039.00 Price Tier: High-end

5.0 (5)

1 Critic Review

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Page last updated Jun 04, 2026

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We compare 600+ stores and found this item at 1 store. Prices updated June 4, 2026.

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$1,039.00 1 available New

$979.00 6 available Used

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Average Price: $1,009

High-end/Boutique

$149

$350+

Price Tier

In the Modular Synthesizers category, Cwejman VCO-2RM is priced in the High-end/Boutique range. This premium gear is built to very high standards and offers premium features.

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High-end

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Description

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The Cwejman VCO-2RM is a dual voltage-controlled oscillator designed for the discerning modular synthesizer enthusiast. Known for its precision and stability, this module brings a distinctive sonic character that appeals to both experimental sound designers and traditional musicians alike. Each of the two oscillators offers a wide frequency range and multiple waveform outputs, ensuring versatility in sound sculpting. The VCO-2RM excels in achieving rich harmonic content and precise frequency modulation, making it a staple in any modular setup.

This module features hard and soft sync options, allowing you to explore complex tonal interactions and rhythmic patterns. Its built-in ring modulator further expands your creative possibilities, enabling the creation of metallic and bell-like tones that add texture to your compositions. The intuitive layout and high-quality build ensure that your sonic explorations are both smooth and reliable.

Whether you're crafting intricate soundscapes or building a solid foundation for live performances, the Cwejman VCO-2RM delivers robust functionality and an unparalleled sound quality that will inspire your musical journey.

Key Features:

Dual high-stability voltage-controlled oscillators
Wide frequency range with multiple waveform outputs
Hard and soft sync for complex tonal variations
Integrated ring modulator for additional sound design options
High-quality construction for reliable performance in any setup
Ideal for both experimental sound design and traditional synthesis

Product specs

Brand	Cwejman
Model	VCO-2RM Dual Oscillator
Finish	Eggshell, Grey
Year	2010s
Made In	Sweden
Categories	Eurorack Modules and Cases, Synth Modules
Horizontal Pitch	20HP
Modular Synth Format	Eurorack
Polyphony	1 Voice
Synth Module Function	Oscillator, Ring Modulator

FAQs

What are the main features of the Cwejman VCO-2RM?: The Cwejman VCO-2RM is a dual oscillator module for Eurorack systems, featuring two precision analog oscillators and a ring modulator. It is known for its stability, wide frequency range, and high-quality sound generation.
Is the Cwejman VCO-2RM suitable for polyphonic setups?: The Cwejman VCO-2RM is a monophonic module, meaning it is designed for single voice outputs. It is ideal for creating rich, complex monophonic sounds in modular synth setups.
What is the horizontal pitch size of the Cwejman VCO-2RM?: The Cwejman VCO-2RM has a horizontal pitch of 20HP, making it a compact yet powerful addition to any Eurorack modular synthesizer system.
What type of synthesis does the Cwejman VCO-2RM support?: The Cwejman VCO-2RM supports analog synthesis, providing high-fidelity sound generation with precise control over waveform shapes and modulation.
Can the Cwejman VCO-2RM be used for ring modulation?: Yes, the Cwejman VCO-2RM includes a built-in ring modulator, allowing for complex modulation effects and unique sound textures in your modular setup.

Videos

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Pepe Mogt

Cwejman vco-2rm,AS modular synth VCO+LFO and TR-606

Pepe Mogt

CWEJMAN Analog Modular Synthesizer VCO-2RM + MMF-1 + ADSR-VC2

Pepe Mogt

Cwejman VCO-2RM Demo

Jason Baker

Cwejman VCO-2RM Demo [HQ Audio]

Hyboid a.k.a. Astro Chicken

Cwejman VCO-2RM: Dual VCO with ring modulation

John Schussler

Cwejman vco-2rm & Schippmann Omega-Phi sequence by cirklon + ER301

Arnd Herling

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Cwejman VCO-2RM.

Build quality

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Cwejman modules are known for their tank-like construction and precise functionality, with knobs that are notably stable and non-wobbly.
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Setup and maintenance

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Repairing Cwejman modules can be challenging due to the lack of available schematics and complex SMT circuitry, making servicing difficult outside of Cwejman.
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Maho, based in Japan, continues Cwejman's legacy by offering modules like the RES-4 and VCO-2RM through direct email communication.
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Features and functionality

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The VCO-2RM is praised for its precise pitch tracking and rich sound, though it has limited modulation capabilities.
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Value and pricing

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The high price is attributed to limited production runs and the reputation for stable performance rather than any unique sonic characteristics.
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Owners are sensitive to price increases, noting recent tariff impacts and rising costs, prompting timely purchases to avoid further price hikes.
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User experience

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Owners appreciate the VCO-2RM for its consistent performance in every patch, emphasizing its reliability in modular setups.
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A setup with the VCO-2RM and modules like Maths and Data Bender can yield a rich, ambient sound reminiscent of artists like Tycho, appealing to fans of trance melodic routes.
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Maho, involved in Cwejman's manufacturing, ensures hands-on standards are maintained post-Wowa, contributing to the slow production rate.
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Owners have successfully acquired Cwejman modules such as the QMMF and VCO-2RM by contacting Maho directly, highlighting an alternative purchasing route.
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Use cases and applications

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The DFA-2 module revealed deficiencies in subwoofer cabinets, showcasing its utility in testing and refining sound systems.
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Using a Mini Mod Filter with SSF noise and attenuated LFO modulation can significantly enhance the tonal complexity of the VCO-2RM in a tight modular setup.
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Comparisons

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Some users prefer alternatives like Intellijel Cascadia for similar high-quality features at a more reasonable price.
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Owners are contemplating between expanding their modular setup with additional Cwejman units or investing in a hardware desktop like the Virus TI2 for broader sound exploration.
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Mods and upgrades

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Incorporating a Happy Nerding Super Sawtor is a planned upgrade for enhancing the sonic capabilities of a setup featuring the VCO-2RM.
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Critic Reviews

Cwejman Synthesis Modules: Part 2

soundonsound.com

Cwejman's VCO-2RM dual oscillator module shines with versatility and precision, offering a wide range of waveforms and modulation options. Its high engineering standards and ability to fit into Eurorack systems make it a standout choice for modular synth enthusiasts. However, the lack of included manuals and the need for additional multiples and mixers to fully exploit its capabilities are minor drawbacks. Despite these, the module's excellent audio quality and flexibility make it a valuable addition to any setup, although it may not suit those seeking heavy, overdriven sounds. Overall, a strong contender in the modular synth market.

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