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Average Price: $147

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$149

$350+

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Based on price data from 3 merchants for "Tiptop Audio Fold Processor". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unleash a world of sonic possibilities with the Tiptop Audio Fold Processor, a versatile and compact 12HP Eurorack module designed to sculpt and enhance your audio signals in fascinating ways. This diode-based harmonic generator excels at transforming simple waveforms into rich, multi-layered textures. By folding and multiplying input signals and incorporating subharmonics, it offers a playground of sound experimentation for modular enthusiasts.

Feed your signals through its unique fold circuit to craft evolving tones with sine, triangle, sawtooth, or square waves. The real magic lies in its voltage-controlled capabilities, allowing you to dynamically morph waveforms for continuously shifting sonic landscapes. Whether you're aiming for deep bass patches or glitchy effects, this module delivers with precision.

A standout feature of the Fold Processor is its ability to manipulate the bias point of your sound, adding a layer of texture that ranges from smooth to edgy. With the injection of CV control, your sound palette expands into new territories. Dive deeper into tone manipulation with its 4-stage subharmonic generators, each adding a layer of depth one octave apart. The separate Subdivide output enables further external processing, making this module an essential tool for any modular synth setup.

Key Features:

  • 12HP Eurorack module with 3-stage harmonics generator
  • Diode-based harmonic generator for signal folding and multiplication
  • Voltage-controlled fold section for waveform morphing
  • Adjustable bias point for added texture, manually or via CV
  • 4-stage subharmonic generators, each one octave apart
  • Subdivide output for separate subharmonic processing
  • Ideal for creating deep bass patches and glitchy effects

Product specs

Type Wave Multiplier Eurorack Module
HP Size 12HP
Power Usage +12V/60mA, -12V/55mA
Power Supply Requires Eurorack case and power supply

FAQs

What is the primary function of the Tiptop Audio Fold Processor?

The Tiptop Audio Fold Processor is designed to multiply and shape waveforms in a modular synthesizer setup, enhancing the harmonic content and complexity of audio signals.

How does the Tiptop Audio Fold Processor integrate into a Eurorack system?

The Fold Processor fits into a Eurorack setup with a size of 12HP and requires a Eurorack case with a power supply providing +12V/60mA and -12V/55mA.

Can the Tiptop Audio Fold Processor be used to create unique timbres?

Yes, the Fold Processor excels at creating unique timbres by folding and multiplying waveforms, which adds rich harmonic textures to your sound.

Does the Tiptop Audio Fold Processor require any additional modules to function?

While the Fold Processor can operate independently, it is designed to work with other Eurorack modules to modulate and process audio signals for more complex sound design.

Is the Tiptop Audio Fold Processor suitable for beginners in modular synthesis?

The Fold Processor can be used by beginners, but some understanding of waveform processing and modular synthesis basics will help in maximizing its potential.

DivKid

DivKid

Tiptop Audio Fold Processor (Serge based wavefolder and unique sub generator

Video thumbnail for Tiptop Audio Fold Processor (Serge based wavefolder and unique sub generator by DivKid

Tiptop Audio Fold Processor (Serge based wavefolder and unique sub generator

DivKid

DivKid

Video thumbnail for TIPTOP AUDIO FOLD PROCESSOR TUTORIAL AND DEMO ~ Eurorack Wave Folding and Divider Module by once upon a synth

TIPTOP AUDIO FOLD PROCESSOR TUTORIAL AND DEMO ~ Eurorack Wave Folding and Divider Module

once upon a synth

once upon a synth

Video thumbnail for FOLD PROCESSOR by TIPTOP AUDIO - overall  review (ENGLISH VERSION) by COLOR MY SOUND

FOLD PROCESSOR by TIPTOP AUDIO - overall review (ENGLISH VERSION)

COLOR MY SOUND

COLOR MY SOUND

Video thumbnail for Superbooth 2017 - TipTop Audio Fold Processor & Techno Jam by DivKid

Superbooth 2017 - TipTop Audio Fold Processor & Techno Jam

DivKid

DivKid

Video thumbnail for TipTop Audio Fold Processor Introduction by SundayAfternoonModular

TipTop Audio Fold Processor Introduction

SundayAfternoonModular

SundayAfternoonModular

Video thumbnail for Superbooth 2017: Introducing Tiptop Audio New Fold Processor and the ONE Eurorack Module by Analogue Zone Showroom / Synths and Studio

Superbooth 2017: Introducing Tiptop Audio New Fold Processor and the ONE Eurorack Module

Analogue Zone Showroom / Synths and Studio

Analogue Zone Showroom / Synths and Studio

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Tiptop Audio Fold Processor.

Features and functionality

  • The sub octave divider is a rare feature among Eurorack modules, making the Tiptop Fold Processor unique for users seeking this capability alongside wavefolding.

    Source
  • The module is praised for its sweet spots, offering harmonically interesting sounds, but users should be cautious of over-modulation leading to potential dissatisfaction.

    Source
  • Some users find that external synth outputs may not be strong enough for a wavefolder calibrated for Eurorack levels, suggesting the use of an amplifier like the 4ms Listen for better results.

    Source
  • The Bastl Waver is noted for its "break" function, which can dramatically alter sounds, especially when multiple signals and audio rate modulation are involved.

    Source

Use cases and applications

  • It's recommended to experiment with input configurations, using audio rate CV signals to unlock unique sound textures, deviating from the labeled input suggestions.

    Source
  • Running a polyphonic waveform through the Fold Processor can result in either a wall of fuzz or a harmonically rich distortion, depending on the interval used.

    Source
  • Bastl Waver's versatility as a 3-channel mixer with bipolar VCAs allows for ring modulation, making it useful beyond wavefolding in complex signal setups.

    Source

User experience

  • Owners highlight the importance of understanding how external modulators interact with the module's controls to fully leverage its capabilities.

    Source
  • For mono sources, a Fold Processor can make single sine waves sound like guitar power chords when playing open 4ths/5ths/octaves.

    Source
  • Owners describe the Bastl Waver as a "gnarly, multifunctional beast" capable of extreme distortion, particularly when sliders are pushed to the limit.

    Source

Comparisons

  • One user transitioned to the Intellijel Bifold for more features, indicating the Fold Processor's niche appeal despite its limited feature set compared to more complex alternatives.

    Source
  • The Toppobrillo Triple Wavefolder is praised for its three individually adjustable stages, offering distinct outputs useful for creating stereo images with mid-side processing.

    Source

Critic Reviews

TipTop Audio - Fold Processor · Tech Review ⟋ RA

ra.co

Tiptop Audio's Fold Processor is a Eurorack marvel that beautifully blends simplicity with sonic complexity. This wave multiplier takes basic sound inputs and transforms them into rich, vibrant outputs with its '70s inspired diode circuits. While it shines with simple sources, it also drastically alters complex sounds, offering both subtle and wild textures. The Fold and Inject controls provide a playground for sonic sculpting, though some settings may veer into chaotic territories. Despite occasional dead spots, the Fold Processor's ability to generate captivating textures and its reasonable price of 140 Euros make it a standout tool for adventurous modular enthusiasts.

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See how Hrdvsion uses Tiptop Audio Fold Processor

Hrdvsion

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Used With

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