Pricing and availability

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Reverb
5.0 (3)
$179.00 New
$117.73 Used
Thomann
4.8 (19)
$134.00 $133.00 $1.00 · All time low

Average Price: $152

Standard/Professional

$149

$350+

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Price History

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

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Description

Unlock new dimensions of sound with the Doepfer A-110-4 QZVCO Quadrature Thru Zero VCO, a marvel in the world of modular synthesizers. Designed for musicians who crave precision and versatility, this module delivers simultaneous sine and cosine waveforms, creating a rich tapestry of audio possibilities. Whether you're crafting ambient soundscapes or pushing the boundaries of electronic music, this VCO stands ready to elevate your sonic explorations.

Equipped with dual control sections—linear and exponential—this VCO offers unparalleled modulation potential. Dial in your ideal waveform with controllers for XTune, XFM, LFrq, and LFM, and experience the seamless transition from frequency shifts to linear modulation as the voltage hits zero. Its compact size, with a width of just 8HP, ensures it integrates effortlessly into your existing setup, without sacrificing an inch of performance.

Perfect for the modular enthusiast who knows that every detail counts, the Doepfer A-110-4 is designed with precision in mind. Its power-efficient design requires just 90 mA, making it an ideal choice for those who want to maximize their rack space without compromising on power or functionality. Elevate your sound with this piece of gear that’s as innovative as it is essential.

Key Features:

  • Simultaneous sine and cosine waveform generation
  • Linear and exponential control sections
  • Controllers for XTune, XFM, LFrq, and LFM
  • Compact size: 8HP width
  • Power requirements: 90 mA

Product specs

Available since July 2015
Analog Yes
Digital No
Width 8 TE / HP
variants Doepfer

FAQs

What is the main feature of the Doepfer A-110-4 QZVCO?

The Doepfer A-110-4 QZVCO is a thru zero quadrature voltage-controlled oscillator, allowing for both forward and backward frequency modulation, which enables complex sound textures and deeper modulation capabilities.

Is the Doepfer A-110-4 QZVCO an analog or digital module?

The Doepfer A-110-4 QZVCO is an analog module, providing rich and warm sound characteristics typical of analog synthesizers.

How much space does the Doepfer A-110-4 QZVCO take in a modular setup?

The Doepfer A-110-4 QZVCO occupies 8 TE/HP in a modular synthesizer setup, making it a compact choice for adding thru zero modulation capabilities.

What kind of sounds can the Doepfer A-110-4 QZVCO produce?

The Doepfer A-110-4 QZVCO can produce unique and complex sounds suitable for experimental and electronic music, thanks to its ability to perform thru zero modulation and quadrature outputs.

Is the Doepfer A-110-4 QZVCO suitable for beginners?

While the Doepfer A-110-4 QZVCO offers advanced modulation features, it may be more suitable for users with some experience in modular synthesis who are looking to explore complex sound design.

Let's Listen

Let's Listen

Doepfer A-110-4 QZVCO

Video thumbnail for Doepfer A-110-4 QZVCO by Let's Listen

Doepfer A-110-4 QZVCO

Let's Listen

Let's Listen

Video thumbnail for Doepfer A-110-4 QZVCO Quadrature Through Zero VCO Play Around by SundayAfternoonModular

Doepfer A-110-4 QZVCO Quadrature Through Zero VCO Play Around

SundayAfternoonModular

SundayAfternoonModular

Video thumbnail for Doepfer A-110-4 QZVCO - Frequency Modulation by SundayAfternoonModular

Doepfer A-110-4 QZVCO - Frequency Modulation

SundayAfternoonModular

SundayAfternoonModular

Video thumbnail for Doepfer A-110-4 Quadrature Thru Zero VCO by Detroit-Berlin

Doepfer A-110-4 Quadrature Thru Zero VCO

Detroit-Berlin

Detroit-Berlin

Reviews

PROS

  • Thru-zero capability for unique sound modulation

  • Excellent for creating bells, metallic, and percussive sounds

  • Sine and Cosine outputs for diverse sound shaping

  • Real Sine Wave Core for mellow FM input

  • Affordable yet high-quality compared to more expensive VCOs

  • Well-built with clean tracking performance

  • Versatile in sound production for various musical applications

CONS

  • Limited functionality compared to some other oscillators

  • Inconsistent output levels across units

  • Requires additional oscillators for more interesting sound modulation

  • No comprehensive user manual provided

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