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Reverb
$179.00 New
$132.45 Used
Thomann
4.8 (22)
$135.00 $134.00 $1.00 · All time low

Average Price: $156

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$149

$350+

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Based on price data from 2 merchants for "Doepfer A-137 VC Wave Mult Voltage Controlled Wave Multiplier". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock new dimensions of sound with the Doepfer A-137 VC Wave Mult Voltage Controlled Wave Multiplier, a versatile tool in the world of modular synthesizers. This Eurorack module is designed to add harmonic complexity to your audio and control signals, making it an essential addition for any synth enthusiast looking to explore uncharted sonic territories. Whether you're working with oscillators or LFOs, the A-137 effortlessly multiplies incoming waveforms without affecting pitch or frequency, offering a whole new level of depth and character to your compositions.

The A-137 is particularly effective on waveforms with low harmonic content, such as sine and triangle waves. But don't let that limit your creativity; its ability to transform even the most basic of signals into something animated and evocative is truly unparalleled. With parameters like "Multiples" to control the number of wave multiplications per cycle and "Harmonics" to emphasize the harmonic content, this module offers intuitive control over your sound textures. Attenuators on all inputs ensure your signal levels remain balanced, enabling seamless integration with your existing Eurorack setup.

Key Features:

  • Adds harmonic content to audio and control signals
  • Multiplies incoming waveform without altering pitch or frequency
  • Ideal for low harmonic waveforms like sine and triangle waves
  • "Multiples" parameter for wave multiplication control
  • "Harmonics" parameter to highlight harmonic content
  • Attenuators on all inputs to maintain proper signal level
  • Size: 14HP, 65mm deep
  • Power usage: +40mA (+12V)/-20mA (-12V)

Product specs

Type VC Wave Multiplier
Analog Inputs 1 x 1/8"
Analog Outputs 1 x 1/8"
Other I/O CV multiples, CV harmonics, CV folding, CV symmetry
Depth 2.55" (65mm)
HP Size 14HP
Power Usage +12V/40mA, -12V/20mA
Power Supply Requires Eurorack case and power supply

FAQs

What does the Doepfer A-137 VC Wave Multiplier do?

The Doepfer A-137 VC Wave Multiplier modifies the waveform of an incoming audio signal by creating additional harmonics, thereby enriching the sound and adding complexity to the original signal.

How does the Doepfer A-137 integrate into a modular synthesizer setup?

The Doepfer A-137 integrates into a modular synthesizer setup via standard 1/8" analog input and output jacks and requires a Eurorack case with a power supply to function.

What are the key control voltage (CV) features of the Doepfer A-137?

The Doepfer A-137 offers CV control over multiple parameters, including harmonics, folding, and symmetry, allowing for dynamic modulation and creative sound shaping.

Is the Doepfer A-137 VC Wave Multiplier suitable for beginners in modular synthesis?

While the Doepfer A-137 can be used by beginners, understanding its full potential requires some familiarity with modular synthesis concepts such as CV modulation and waveform manipulation.

What are the power requirements for the Doepfer A-137 VC Wave Multiplier?

The Doepfer A-137 requires a Eurorack case with a power supply, consuming +12V/40mA and -12V/20mA, making it essential to ensure your setup can accommodate these needs.

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-137 VC Wave Mult Voltage Controlled Wave Multiplier.

Features and functionality

  • The Doepfer A-137-1 Wave Multiplier offers individual CV control for each section, enabling complex, evolving sounds when combined with modulation sources like Mutable Instruments Tides.

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  • The Doepfer A-137-1 can derive higher pitches from a triangle wave, making it useful for creating unique sound textures with a plain oscillator.

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Use cases and applications

  • The A-137-1 is praised for its ability to create interesting timbres and textures, suitable for dark ambient and experimental genres, drawing inspiration from artists like Tangerine Dream.

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  • Users suggest that a combination of 2hp Freez and delay modules like Chronoblob V1 can effectively add noisy fragments to ambient compositions, enhancing the overall sound palette.

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  • The A-137-1 is recommended for generative sequencing setups, particularly when paired with a quantizer to modify evolving signals for complex musical structures.

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Setup and maintenance

  • The RackBrute 3U is confirmed to have a slightly larger actual size than advertised (89hp vs. 88hp), allowing more flexibility in module arrangement.

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Comparisons

  • Users suggest the Void Modular Hexagram as a superior alternative to the Happy Nerding 3x VCA, offering 6 VCAs that normalize to a single output for efficient space usage.

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  • The A-137-1 is mentioned alongside the Random Source Serge Wave Multipliers, suggesting a shared capability for deriving complex waveforms from simple oscillators.

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Mods and upgrades

  • Inline signal attenuators are recommended as cost-effective alternatives to using VCA modules for manual signal attenuation without CV control.

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User experience

  • It's noted that the A-137-1 is often used by owners who experiment with chaotic, noisy, and grindy soundscapes, indicating its appeal for experimental music production.

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