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Average Price: $70

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$149

$350+

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Based on price data from 2 merchants for "Doepfer A-170 Dual Slew Limiter". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

The Doepfer A-170 Dual Slew Limiter is a versatile module designed for those who love to experiment with sound in their Eurorack setups. This module offers two independent slew limiters, perfect for adding that smooth portamento effect or generating dynamic AR envelopes. Whether you're gliding between notes or tweaking parameter values for that perfect transition, the A-170 ensures seamless control.

The first section of the module is equipped with a unified control for both rise and fall times, making it straightforward to operate. In contrast, the second section provides separate controls for attack and release, offering you the flexibility to tailor your soundscapes with precision. A clever addition is the three-position switch, which allows you to modify the overall time range, catering to various musical needs. Compact yet powerful, this module fits snugly into any Eurorack case without compromising its capabilities, taking up just 8HP of rack space.

With its practical design and robust functionality, the Doepfer A-170 Dual Slew Limiter is a must-have for synth enthusiasts looking to elevate their modular setup. Whether you're a seasoned musician or just dipping your toes into the expansive world of modular synthesis, this module offers intuitive controls and a myriad of possibilities to explore.

Key Features:

  • Dual slew limiter functionality for Eurorack systems
  • First section with unified control for rise and fall times
  • Second section with separate attack and release controls, also usable as an AR envelope generator
  • Three selectable time ranges for versatile sound shaping
  • Compact size: 8HP wide, 40mm deep
  • Power requirements: +20mA (+12V) / -20mA (-12V)

Owner's manual

Doepfer A-170 Dual Slew Limiter User Manual

Product specs

Type Dual slew limiter portamento controllers
Analog Inputs 2 x 1/8" (waveform, CV)
Analog Outputs 2 x 1/8"
Depth 1.57"
HP Size 8HP
Power Usage ±12V/20mA
Power Supply Requires Eurorack case / power supply

FAQs

What is the primary function of the Doepfer A-170 Dual Slew Limiter in a modular synth setup?

The Doepfer A-170 Dual Slew Limiter is designed to control the rate of voltage change, allowing for smooth transitions between voltages. This is useful for creating portamento effects or smoothing out control voltage signals in a modular synthesizer system.

How does the Doepfer A-170 connect within a Eurorack system?

The Doepfer A-170 connects to a Eurorack system via 1/8" jacks for both inputs and outputs. It requires a Eurorack case and power supply, using ±12V/20mA for operation.

Can the Doepfer A-170 be used for both audio and control voltage signals?

Yes, the Doepfer A-170 is capable of processing both audio and control voltage (CV) signals, making it versatile for various applications in a modular synth setup.

What is the size of the Doepfer A-170 module in a Eurorack setup?

The Doepfer A-170 occupies 8HP in a Eurorack setup, with a depth of 1.57 inches, making it a compact addition to your modular synth system.

Does the Doepfer A-170 require any specific power supply?

The Doepfer A-170 requires a Eurorack case with a power supply that provides ±12V/20mA to function properly.

Raul's World of Synths

Raul's World of Synths

Doepfer A170 Dual Slew Limiter Basics

Video thumbnail for Doepfer A170 Dual Slew Limiter Basics by Raul's World of Synths

Doepfer A170 Dual Slew Limiter Basics

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170 Dual Slew Limiter- Portamento and Filtering Examples by Raul's World of Synths

Doepfer A170 Dual Slew Limiter- Portamento and Filtering Examples

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170 Dual Slew Limiter-Processing and Oscilloscope views Pt 1 by Raul's World of Synths

Doepfer A170 Dual Slew Limiter-Processing and Oscilloscope views Pt 1

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170 Dual Slew Limiter-Glissando AM example by Raul's World of Synths

Doepfer A170 Dual Slew Limiter-Glissando AM example

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170 Dual Slew Limiter -Slew as AR example by Raul's World of Synths

Doepfer A170 Dual Slew Limiter -Slew as AR example

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170  Dual Slew Limiter-Processing and Oscilloscope Views Pt 2 by Raul's World of Synths

Doepfer A170 Dual Slew Limiter-Processing and Oscilloscope Views Pt 2

Raul's World of Synths

Raul's World of Synths

Video thumbnail for Doepfer A170  Dual Slew Limiter Processing and Oscilloscope Views Pt 3 by Raul's World of Synths

Doepfer A170 Dual Slew Limiter Processing and Oscilloscope Views Pt 3

Raul's World of Synths

Raul's World of Synths

Reviews

PROS

  • Reliable performance in various patches

  • Enhances sound of melodies effectively

  • Versatile applications: portamento effects, reducing clickiness, etc.

  • Quality build and great sound

  • Bright, responsive LEDs

  • Compact design suits modular setups

  • Adds essential glide to modular patches

CONS

  • Not suitable for pitch CV applications

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-170 Dual Slew Limiter.

Features and functionality

  • The Doepfer A-170's lower section acts more like an AR envelope, with the fall phase engaging after key release, diverging from traditional slew limiter behavior.

    Source

Mods and upgrades

  • Mixing pitch CV with a simple envelope using a precision adder, like the Joranalogue Add 2, can improve pitch tracking without detuning issues.

    Source

Comparisons

  • Joranalogue's Contour 1 is recommended as a standalone alternative to the Maths, offering significant control in an 8hp format.

    Source

Use cases and applications

  • Slew limiters can be creatively used in conjunction with LPGs for pitch control, although it can be challenging to manage decay precisely.

    Source

User experience

  • Some users find the Doepfer A-170 lacks the intuitive ease of use compared to the more user-friendly Maths for similar tasks.

    Source

Other

  • Owners report that the Doepfer A-170 can cause pitch CV to detune when mixed using certain mixers, indicating a need for precision mixing solutions.

    Source

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Artist usage

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See how Masonna uses Doepfer A-170 Dual Slew Limiter

Masonna

Composer, Music Producer

Acid Eater

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A Doepfer A-170 Dual Slew Limiter can be seen on the tray image of the Space Machine album Cosmos From Diode Ladder Filter

See how Afterlife uses Doepfer A-170 Dual Slew Limiter

Afterlife

Music Producer

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In a studio tour video posted on Facebook, Steve Miller, known as Afterlife, showcases his collection of instruments, including a Doepfer A-170 Dual Slew Limiter.

Genre Usage

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Used With

Based on how musicians on Equipboard use Doepfer A-170 Dual Slew Limiter, it is most commonly used with the following gear.

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renierra

renierra

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