Doepfer A-143-3 Quad LFO

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$135.00 to $202.00 Price Tier: Budget

5.0 (1)

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Page last updated Jul 04, 2026

Pricing and availability

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$202.00

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5.0 (3)

$136.46 5 available New

$120.00 1 available Used

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4.8 (17)

$135.00

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Average Price: $148

Budget/Beginner

$149

$350+

Price Tier

In the Modular Synthesizers category, Doepfer A-143-3 Quad LFO is priced in the Budget/Beginner range. This is great gear to get started with or for creators on a budget.

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Price History

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Description

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Unleash the power of modulation with the Doepfer A-143-3 Quad LFO, a must-have for any modular synth enthusiast. This Eurorack module houses four independent low-frequency oscillators, each equipped with simple yet versatile controls. Ideal for crafting complex modulation setups, this module provides an intuitive interface that allows you to adjust LFO speed smoothly across three selectable ranges: low, mid, and high.

Each of the four LFOs offers three distinct waveforms—triangle, square, and sawtooth—each with its own dedicated output, totaling 12 outputs. This feature alone makes the A-143-3 a powerhouse for creating dynamic and evolving soundscapes. Whether you're a seasoned synth veteran or a newcomer exploring the modular world, this module offers a blend of simplicity and creative potential.

Discover endless modulation possibilities and bring your sonic visions to life with the Doepfer A-143-3 Quad LFO, a reliable companion for both studio and live performance setups.

Key Features:

Four independent LFOs in a single Eurorack module
Three waveforms per LFO: triangle, square, and sawtooth
Smooth frequency adjustment with low, mid, and high ranges
12 individual waveform outputs for complex modulation setups
Eurorack format with a width of 14HP
Power consumption: +70 mA (+12V)/ -60 mA (-12V)

Product specs

Type	Quad LFO Eurorack Module
Depth	1.57" (40mm)
HP Size	14HP
Power Usage	+12V/70mA, -12V/60mA
Power Supply	Requires Eurorack case and power supply

FAQs

What is the main function of the Doepfer A-143-3 Quad LFO?: The Doepfer A-143-3 Quad LFO is designed to provide four low-frequency oscillators for modulation purposes in a Eurorack modular system, ideal for creating complex modulation patterns.
How many LFOs does the Doepfer A-143-3 contain?: The Doepfer A-143-3 contains four independent low-frequency oscillators, allowing for versatile modulation options within a modular synthesizer setup.
What is the size of the Doepfer A-143-3 Quad LFO in HP?: The Doepfer A-143-3 Quad LFO occupies 14HP in a Eurorack system, making it a compact choice for adding multiple LFOs to your modular setup.
What power requirements does the Doepfer A-143-3 have?: The Doepfer A-143-3 requires a Eurorack case and power supply with power usage specifications of +12V/70mA and -12V/60mA.
Is the Doepfer A-143-3 suitable for beginners in modular synthesis?: Yes, the Doepfer A-143-3 is suitable for beginners due to its straightforward design, providing multiple LFOs for modulation without complex controls.

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Reviews

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PROS

Four LFOs in one module saves space and cost
Generates 3 different LFO waves in three frequency ranges
Useful for beginners and advanced users alike
Can act as an audio frequency drone device
LFOs have completely separate chips, preventing lock
Solid build quality and excellent value for money
Compatible with simple polyphonic setups
12 simultaneous LFO outputs for extensive modulation
Doesn't require long to stabilize compared to similar models
Straightforward to understand and use for modulating various parameters

CONS

Lacks built-in inverse sawtooth waveform
No voltage control (VC) inputs for external modulation control
Sawtooth output has double the frequency of other outputs, limiting versatility
Absence of FM synthesis capabilities
No reset or CV inputs for free-running LFOs

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Doepfer A-143-3 Quad LFO.

Features and functionality

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The A-143-3 provides four LFOs with three waveshapes and a frequency knob, but lacks voltage control over frequency and clock synchronization.
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The Doepfer A-143-4 has a jumper setting for 'super-low' mode, enabling LFO cycle times up to one hour, useful for drone and ambient music.
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Comparisons

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Batumi offers clock sync with various divisions and v/o tracking, which the Doepfer A-143-3 does not provide, making it less versatile in complex setups.
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Eowave Zone BF offers dual LFOs with 16 selectable waveforms and sync or CV input, providing richer modulation possibilities than the A-143-3, if you can find them.
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User experience

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Owners appreciate the A-143-3 for delivering what it promises, with no inherent flaws reported in its performance.
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Owners recommend hybrid setups using a computer or iPad for super slow LFOs, leveraging software like VCV Rack for expanded modulation capabilities.
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Mods and upgrades

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Modifying the A-143-3 with larger capacitors can enable slower LFO cycles, enhancing its utility for ambient and drone applications.
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A DIY approach can expand the A-143-3's functionality, such as adding a slew limiter to slow down existing LFOs, providing more control over modulation speed.
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Use cases and applications

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Utilizing negative voltage inputs can slow down LFOs significantly; owners have used offsets from modules like Disting or 3xMIA for this purpose.
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