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Average Price: $67
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$149
$350+
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Based on price data from 2 merchants for "Doepfer A-118 Noise/Random Module". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Dive into the sounds of the unpredictable and ever-changing with the Doepfer A-118 Noise/Random Module, a versatile tool for your modular synthesizer setup. This module stands out as a dual-purpose generator, producing both a spectrum of noise colors and intriguing random voltages that can breathe life into your soundscapes. Whether you're looking to add texture to your tracks with the gritty crunch of white noise, the subtle hues of colored noise, or the uncharted territories of random voltages, the A-118 delivers with precision and creativity.
At the heart of this module is its ability to morph pure analog white noise into a rainbow of sounds. By adjusting the blend of blue and red noises, you can tailor the frequency response to your liking, from shimmering highs to the deep, organic warmth of lower frequencies. The random voltage generator, fed by this colored noise, opens up a playground of sonic possibilities. With control over rate and level, you can steer the randomness from gentle fluctuations to wild oscillations, making it a perfect partner for experimental sound design.
Not just a source of chaos, the A-118 provides clarity and control in its randomness, thanks to its thoughtful design. Two LEDs keep you informed of the voltage state, ensuring you're never lost, even in the most complex patches. Compact yet powerful, this module is an essential tool for anyone looking to explore the boundaries of modular synthesis.
Key Features:
- Dual-functionality: Generates both noise (white, blue, and red) and random voltages
- Versatile noise blending: Mix blue and red noises to achieve a wide range of sonic textures
- Dedicated outputs for both the mixed colored noise and the original white noise
- Random voltage generation with controllable rate and level for dynamic modulation effects
- Two LED indicators for real-time monitoring of the random voltage phase
- Compact design, fitting seamlessly into any Eurorack setup
Product specs
| Type | Noise, Random Voltage Generator |
| Analog Outputs | 3 x 1/8" (white noise, colored noise, random voltage) |
| Depth | 1.57" |
| HP Size | 8HP |
| Power Usage | 20mA, ±12V DC |
| Power Supply | Requires Eurorack case and power supply |
FAQs
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What types of noise outputs does the Doepfer A-118 module provide?
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The Doepfer A-118 offers three types of noise outputs: white noise, colored noise, and random voltage. Each output can be used to create diverse textures and modulations in a modular synth setup.
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How does the Doepfer A-118 integrate with a Eurorack system?
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The Doepfer A-118 is an 8HP module that requires a Eurorack case and power supply, consuming 20mA at ±12V DC. This makes it compatible with standard Eurorack systems for seamless integration.
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Can the random voltage output of the Doepfer A-118 be used for modulation?
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Yes, the random voltage output can be utilized for modulation purposes, adding unpredictability and variation to parameters like pitch, filter cutoff, or amplitude in your modular setup.
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What is the depth of the Doepfer A-118 module, and why is it important?
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The Doepfer A-118 module has a depth of 1.57". This is crucial for ensuring it fits properly in your Eurorack case, especially if the case has limited depth space.
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Does the Doepfer A-118 require a specific power supply?
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The Doepfer A-118 requires a Eurorack power supply, consuming 20mA at ±12V DC. It's important to ensure your power supply can accommodate this to avoid any power issues.
Videos
hawklord2112
A118 demo
Reviews
PROS
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Offers both white and coloured noise outputs
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Includes a unique smoothed random waveform output
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Cost-effective alternative to separate noise and Sample & Hold units
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Adjustable rate and depth for custom random signal generation
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Red and Blue noise mixability for a wide range of noise colours
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Immediate feedback with blinking LEDs for random signal rate
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Enhances patches with subtlety or chaos
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Solid build quality, reliable for heavy use
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Compatible with a wide range of modules
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Fun to tweak, especially for users with larger hands
CONS
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A bit wide for a single random voltage source in smaller racks
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-118 Noise/Random Module.
Use cases and applications
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The stepped random voltage can be used to alternate between a sequence and random notes, adding unpredictability to melody lines.
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Audio-rate clocking of the T&H input can produce a down-sampling effect, ideal for experimental sound design.
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Noise output modulation of filter cutoff, paired with an envelope and VCA, can create crunchy percussive sounds.
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Features and functionality
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The clock input allows the module to sync random voltage changes with a master clock, useful for consistent modulation timing.
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The module's continuous random voltage and stepped random voltage outputs are equipped with LED displays for visual feedback.
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The red knob significantly influences the random outputs, and adjusting it alongside the level can cause the voltage to clip at different points.
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The module requires a warm-up period of a few minutes for optimal performance, as noted on Doepfer's website.
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Setup and maintenance
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The module includes a 5k trim pot that can be used to adjust gain, though this is not covered in the manual.
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User experience
4.0 out of 5
Based on 0 Reviews and 4 Ratings
Artist usage
Add artist
At the 0:12 mark in this video, Thijs of Noisia uses the A-118 as part of a "metallic scraping ambient" tune.
Visible in this April 21, 2018 Instagram post and this photo from this August 2021 Sound on Sound interview.
In the video titled "#JagerGuests у Mujuice" on YouTube, Mujuice is seen using the Doepfer A-118 Noise/Random Module, positioned in the middle of his modular synth rack.
A Doepfer A-118 Noise/Random Module can be seen in this photo posted to Risaripa's Twitter
Genre Usage
Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.
Used With
Based on how musicians on Equipboard use Doepfer A-118 Noise/Random Module, it is most commonly used with the following gear.
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