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Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition

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Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition

$133.00 to $179.00 Price Tier: Standard

All time low price

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Page last updated Jul 06, 2026

Pricing and availability

We compare 600+ stores and found this item at 3 stores. Prices updated July 6, 2026.

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Price

$179.00

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5.0 (2)

$169.23 1 available New

$130.00 2 available Used

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4.8 (19)

$134.00 $133.00 $1.00 · All time low

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Average Price: $153

Standard/Professional

$149

$350+

Price Tier

In the Modular Synthesizers category, Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition 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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Price History

Based on price data from 2 merchants for "Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

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Elevate your modular synth setup with the Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition. This module is a sonic powerhouse, offering a unique blend of thru-zero architecture and quadrature capabilities that can transform your creative process. By generating sine and cosine waveforms simultaneously, the A-110-4 opens up a world of harmonic exploration that typical oscillators simply can't match. Whether you're crafting lush, evolving soundscapes or punchy, rhythmic sequences, this module stands ready to deliver.

The A-110-4 is designed with two control sections—linear and exponential—to give you a broad palette of sonic textures. Dive into its modulation potential by injecting an external oscillator through the LFM input, and watch as your waveforms morph into complex, captivating patterns. This Special Edition also includes an additional output amplifier, enhancing its functionality and performance in your rack.

Perfect for both seasoned modular enthusiasts and adventurous newcomers, the A-110-4 is more than just an oscillator—it's a gateway to a new dimension of sound design. Its compact form factor and efficient power requirements make it an ideal addition to any Eurorack system.

Key Features:

Thru-zero oscillator for unique waveform generation
Simultaneous sine and cosine waveform outputs
Linear and exponential control sections for diverse sound textures
Special Edition with additional output amplifier
Compact size: 8HP wide, 60mm deep
Power usage: +90mA (+12V), -30mA (-12V)

Product specs

Type	VCO Eurorack Module
Depth	2.36" (60mm)
HP Size	8HP
Power Supply	Requires Eurorack case and power supply

FAQs

What is the primary function of the Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO?: The Doepfer A-110-4 QZVCO is a quadrature thru-zero voltage-controlled oscillator designed for Eurorack modular synths, offering unique phase-shifted outputs for complex sound modulation and synthesis.
How does the quadrature feature of the Doepfer A-110-4 affect sound synthesis?: The quadrature feature provides two outputs with a 90-degree phase shift, allowing for advanced sound design techniques like frequency modulation and phase modulation, resulting in richer and more complex tones.
Is the Doepfer A-110-4 compatible with other Eurorack modules?: Yes, the Doepfer A-110-4 is designed to integrate seamlessly with other Eurorack modules, adhering to the standard Eurorack format and power requirements.
What are the power requirements for the Doepfer A-110-4 QZVCO?: The Doepfer A-110-4 requires a Eurorack case and power supply, operating within the standard Eurorack power specifications.
What is the depth and HP size of the Doepfer A-110-4 QZVCO?: The Doepfer A-110-4 has a depth of 2.36 inches (60mm) and occupies 8HP in a Eurorack case.

Reviews

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PROS

Exceptional sound versatility from gentle to sharp and aggressive tones
Unique quadrature outputs provide innovative sound modulation options
Eye-catching blue and white design enhances visibility in dim lighting
Thru-zero FM capability offers a wide range of sound possibilities
Outstanding value for a special edition VCO with unique features
Robust build quality ensures durability and long-term use
Crystal-clear sound quality with effective sine and cosine outputs

CONS

Can tend to overdrive, requiring careful management to prevent unwanted distortion
Lacks comprehensive guidance for optimal usage, relying on user experimentation
Requires external control for full feature utilization, limiting standalone functionality

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Genre Usage

Based on how artists on Equipboard use this gear, it is most commonly found in the following genres.

Electronic

Ambient

Experimental

Used With

Based on how musicians on Equipboard use Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO Special Edition, it is most commonly used with the following gear.