Pricing and availability

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Reverb
5.0 (2)
$126.44 New
$125.37 Used
Thomann
4.7 (57)
$117.00 $116.00 $1.00 · All time low

Average Price: $132

Budget/Beginner

$149

$350+

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Price History

Based on price data from 2 merchants for "Doepfer A-156 QNT Dual Quantizer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Unlock the full potential of your modular synth setup with the Doepfer A-156 QNT Dual Quantizer. This versatile module transforms continuous control voltages into precisely stepped musical scales, offering a dynamic range of creative possibilities. Whether you're crafting complex arpeggios or adding harmonic depth to your compositions, the A-156 delivers advanced quantization options including major/minor scales and chords, along with the addition of sixths and sevenths. Ideal for use with a variety of continuous sources—like theremins, ribbon controllers, or light-to-CV modules—this dual quantizer ensures your output is always musical and on-point.

For even more nuanced control, the transpose CV input allows for real-time modulations, quantizing in semitone steps to affect both quantizers simultaneously. While Quantizer 1 offers flexible scale and chord settings, Quantizer 2 simplifies things with a fixed semitone grid, making it perfect for more straightforward applications. Whether you're a seasoned synthesist or just getting started with modular gear, the Doepfer A-156 is a powerful tool to elevate your sound design.

Key Features:

  • Dual quantizer for Eurorack modular synthesizers
  • Converts continuous control voltage (0-10V) into stepped output voltage
  • Quantizer 1: adjustable scales and chords (major/minor, fundamental fifth, sixths, sevenths)
  • Quantizer 2: fixed to semitone grid
  • Transpose input quantized in semitone steps affects both quantizers
  • Perfect for analog sequencers, ribbon controllers, theremins, and more
  • 8 HP width, 55mm depth
  • Power consumption: +50mA (+12V), -10mA (-12V)

Product specs

Type Dual Quantizer
Depth 2.16" (55mm)
HP Size 8HP
Power Usage +12V/50mA, -12V/10mA
Power Supply Requires Eurorack case and power supply

FAQs

What is the primary function of the Doepfer A-156 Dual Quantizer in a modular synth setup?

The Doepfer A-156 Dual Quantizer is designed to convert continuous voltages into quantized voltages, aligning them to musical scales or semitones, making it essential for precise pitch control in modular synthesis.

How does the Doepfer A-156 handle different musical scales?

The Doepfer A-156 offers multiple scale options, including major, minor, and chromatic scales, allowing for versatile musical expression and compatibility with various musical styles.

Is the Doepfer A-156 compatible with other Eurorack modules?

Yes, the Doepfer A-156 is designed for Eurorack systems, requiring an 8HP space and a compatible Eurorack case and power supply to integrate seamlessly with other modules.

What power requirements does the Doepfer A-156 have?

The Doepfer A-156 requires a Eurorack case and power supply, consuming +12V/50mA and -12V/10mA, making it efficient and easy to power within a standard Eurorack setup.

Can the Doepfer A-156 process two signals simultaneously?

Yes, the Doepfer A-156 is a dual quantizer, capable of processing two independent control voltage signals simultaneously, providing greater flexibility in modular synthesis.

Raul's World of Synths

Raul's World of Synths

Doepfer A156 Dual Quantizer Modes of Operation

Video thumbnail for Doepfer A156 Dual Quantizer Modes of Operation by Raul's World of Synths

Doepfer A156 Dual Quantizer Modes of Operation

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A156 Dual Quantizer More CV Sources, Transposing, and triggers by Raul's World of Synths

Doepfer A156 Dual Quantizer More CV Sources, Transposing, and triggers

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A156 Dual Quantizer Modes of Operation Part Two by Raul's World of Synths

Doepfer A156 Dual Quantizer Modes of Operation Part Two

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Live Jam #198 - Melodic modular arpeggios with the Doepfer a156 dual quantizer by Monotrail

Live Jam #198 - Melodic modular arpeggios with the Doepfer a156 dual quantizer

Monotrail

Monotrail

Video thumbnail for Doepfer A-156 QNT Dual Quantizer by Detroit-Berlin

Doepfer A-156 QNT Dual Quantizer

Detroit-Berlin

Detroit-Berlin

Reviews

PROS

  • Dual quantizer offers two devices in one

  • Easy to modify for enhanced functionality

  • Transpose input adds versatility for song parts

  • Effective for generating semi-random bass lines and arpeggios

  • Keeps random notes in a specified key or chord

  • Trigger outputs useful for sound shaping

  • More affordable than competitors with similar features

  • Can transform LFO or noise sources into note CV and trigger output

  • Easy to operate without complex programming

CONS

  • Lacks programmable scales and memory features of more expensive models

  • Requires internal jumper adjustment for full feature use

  • Default setting on one quantizer limits to semi-tone scales without modification

  • A front panel switch for linking quantizers would be more convenient than a jumper

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-156 QNT Dual Quantizer.

Features and functionality

  • The Doepfer A-156 QNT may be unnecessary if the pitch is already quantized by a keyboard case like NiftyKeyz.

    Source
  • The Doepfer A-156 QNT requires powering off and unracking to change scale settings via jumpers on the back, which may be inconvenient for some users.

    Source

Setup and maintenance

  • A 9U 84HP case is recommended for better support of multiple sound sources, offering space for essential support modules.

    Source

Mods and upgrades

  • Consider replacing space-consuming modules like the Jomox ModFM to optimize rack space for additional utility and modulation modules.

    Source
  • Some users consider replacing the pots on the Blue Lantern Duo-Quant to improve usability, suggesting potential DIY modifications for enhanced performance.

    Source

Use cases and applications

  • For building a 4-note polyphonic synth, identical VCOs, VCFs, a quad VCA/mixer, and a quad envelope generator are needed, which is challenging in 112HP.

    Source
  • Quantizers can transform odd voltage sources into musical intervals, enhancing modulation with stepped outputs from continuous signals like LFOs or envelopes.

    Source

User experience

  • Owners note the importance of balancing sound sources with sound modifiers, modulation, and utilities for versatile patching.

    Source
  • Users report the Blue Lantern Duo-Quant can be frustrating due to non-clicking pots and misaligned faceplate tick marks, complicating precise scale settings.

    Source

Comparisons

  • The Ornament and Crime module with Hemisphere firmware offers more versatility, functioning as dual quantizers, sequencer, envelope, and more within 8HP.

    Source

5.0 out of 5

Based on 0 Reviews and 2 Ratings

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Artist usage

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See how Andrew Huang uses Doepfer A-156 QNT Dual Quantizer

Andrew Huang

Singer, Guitarist

First Of October

...
Verified via YouTube

Visible in this September 9, 2020 video at 0:28, 1:31 and throughout.

See how Richard Devine uses Doepfer A-156 QNT Dual Quantizer

Richard Devine

Keyboardist, Composer

...
Verified via YouTube

can be seen at 8:50 in this video

See how Legowelt uses Doepfer A-156 QNT Dual Quantizer

Legowelt

Music Producer

...
Verified via YouTube

In this YouTube video from the Intergalactic FM Festival 2020, Legowelt can clearly be seen using the Doepfer A-156 QNT Dual Quantizer starting at 22:40

See how DMX Krew uses Doepfer A-156 QNT Dual Quantizer

DMX Krew

Music Producer

...
Verified via YouTube

On this 2017 video, at the 0:37 second mark, a Doepfer A-156 Dual Quantizer can be spotted on the top part of Edward Upton's modular system, among other modules.

See how Afterlife uses Doepfer A-156 QNT Dual Quantizer

Afterlife

Music Producer

...
Verified via Facebook

In a studio tour video posted on Facebook, Steve Miller, known as Afterlife, showcases his collection of instruments, including a Doepfer A-156 QNT.

Album Usage

The Doepfer A-156 QNT Dual Quantizer has been featured on the following albums:

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-156 QNT Dual Quantizer, it is most commonly used with the following gear.

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