Doepfer A-143-2 Quad ADSR

$222.00 to $294.00 Price Tier: Standard

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Page last updated Jul 04, 2026

Pricing and availability

We compare 600+ stores and found this item at 4 stores. Prices updated July 3, 2026.

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Reviews

Price

$294.00

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$228.08 4 available New

$235.00 3 available Used

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4.7 (28)

$222.00

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$280.50

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Average Price: $252

Standard/Professional

$149

$350+

Price Tier

In the Modular Synthesizers category, Doepfer A-143-2 Quad ADSR is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Standard

High-end

Price History

Based on price data from 3 merchants for "Doepfer A-143-2 Quad ADSR". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Immerse yourself in the world of sound creation with the Doepfer A-143-2 Quad ADSR, a truly versatile Eurorack module that unleashes boundless potential for your musical journey. With four independent envelope generators packed into one compact unit, this module delivers more than meets the eye. Each section comes equipped with controls for Attack, Decay, Sustain, and Release, bringing a full range of sonic possibilities to your fingertips.

But the real magic lies in the unique digital outputs for End of Attack, End of Decay, and End of Release. These can be patched to the next sub-section to trigger subsequent envelopes, resulting in incredible multi-stage envelope chains. This innovative feature allows you to manipulate and shape your sound in ways you never thought possible. Whether you're using it as four separate envelope generators, crafting a complex multi-stage envelope, or looping envelopes for LFO-style effects, the Doepfer A-143-2 Quad ADSR offers a playground of creativity for the modern sound artist.

Key Features:

Four envelope generators module for Eurorack with identical ADSR sections
Outputs for main ADSR signals, as well as End of Attack, End of Decay, and End of Release for each envelope
3-position time switch ranges from a few milliseconds to several minutes
Operation as AD generators or AD-LFOs possible
Power Requirements: +70 MA (+ 12V) / -50 mA (-12V)

Product specs

Type	Quad ADSR
Depth	1.96" (50mm)
HP Size	26HP
Power Usage	±12V DC, 70mA
Power Supply	Requires Eurorack case / power supply

FAQs

What is the function of the Doepfer A-143-2 Quad ADSR in a modular synthesizer setup?: The Doepfer A-143-2 Quad ADSR is used to shape the amplitude or filter contours of a sound by providing four independent ADSR envelope generators, crucial for dynamic sound modulation in modular synthesizer systems.
How does the Doepfer A-143-2 integrate with other Eurorack modules?: The Doepfer A-143-2 integrates seamlessly with other Eurorack modules, offering standard CV and gate inputs/outputs for each of its four ADSR channels, allowing for versatile modulation routing within a modular setup.
What are the power requirements for the Doepfer A-143-2 Quad ADSR?: The Doepfer A-143-2 requires a Eurorack case with a ±12V DC power supply and consumes 70mA, making it compatible with most standard Eurorack power systems.
How much space does the Doepfer A-143-2 take in a Eurorack case?: The Doepfer A-143-2 occupies 26HP in a Eurorack case and has a depth of 1.96 inches (50mm), which is important to consider when planning your modular setup.
Can the Doepfer A-143-2 be used for polyphonic setups?: Yes, the Doepfer A-143-2 can be used for polyphonic setups by providing four independent ADSR envelopes, each capable of controlling different voices or parameters in a modular system.

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Reviews

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PROS

Easy to use with intuitive controls
Offers options for creating complex envelopes quickly
Can generate 4 independent basic envelopes
Enables interaction between envelopes for advanced modulation
Possibility to create self-contained envelopes without external triggers
MIDI clock sync enhances performance and utility
Good value for the price given its versatility
High-quality German engineering

CONS

Occupies significant space in small systems
Deep module might be difficult to fit in cases with fixed power supplies
Tight spacing may be challenging for those with larger hands

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-143-2 Quad ADSR.

Features and functionality

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The Doepfer A-143-2 fits comfortably in the TipTop Mantis case bottom row, leaving sufficient space for cabling with its 50mm depth.
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The A-143-1 offers a unique sum mix output, providing additional flexibility for envelope combinations and outputs.
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The Doepfer A-143-2 offers individual control over each envelope, appealing to users needing varied envelope settings in polyphonic setups.
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Build quality

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Doepfer cases are robust with enough space for an internal spring tank, but they lack angled feet and are heavier than some competitors.
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Setup and maintenance

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Doepfer modules often need to be placed in the top row due to depth issues, particularly when multiple modules are adjacent.
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User experience

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Fixed angles in Doepfer A-100 LC cases are a personal preference; some users find them solid and well-powered despite the lack of adjustable angles.
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Owners note that while smaller modules can save space, they often compromise on usability due to cramped knob spacing.
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Software and compatibility

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ModularGrid.net does not allow depth specification in virtual cases; users must manually track depth limitations.
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Value and pricing

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The Doepfer A-143-2 at around $250 is considered a cost-effective option for obtaining four ADSR envelopes.
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Comparisons

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The A-143-1, despite its larger size at 26HP, offers better value per envelope compared to smaller, more compact options.
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Compared to Quadrax and Quadigy, the Doepfer A-143-2 is seen as solid yet simpler; Quadrax offers more digital control and versatility.
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Use cases and applications

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The Doepfer A-143-1 can also function as LFOs, adding versatility beyond typical envelope generators.
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The Doepfer A-143-2 is preferred when individual envelope control is needed for polyphonic synthesis, unlike the A-141-4 which is better for uniform envelope needs.
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