Doepfer A-110-4 Thru Zero Quad VCO

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Doepfer A-110-4 Thru Zero Quad VCO

Doepfer

A-110-4 Thru Zero Quad VCO

4.6 Expert Rating

Product Info

Article Number: 367623
Brand: Doepfer
Model: A-110-4 Thru Zero Quad VCO
Price: $152.90

* Prices may vary. Check retailer for current pricing and availability.

This Doepfer A-110-4 is a fantastic entry point into quadrature VCOs, offering a unique sonic palette for experimental sound design. The dual sine/cosine output really opens up interesting phasing and modulation tricks – it's a great choice for those wanting to explore more complex textures and rhythmic patterns without needing a huge module commitment. It's particularly appealing to those just starting out with modular synthesis or needing a compact, reliable quad oscillator.

Product Description

Doepfer A-110-4 Thru Zero Quad VCO, Zero Quadrature VCO

The oscillator generates sine and cosine waveforms at the same time. These are terminated as soon as the linear control voltage reaches 0 V.

  • 2 Control sections: Linear and exponential
  • Controller for XTune
  • LFrq and LFM
  • Width: 8HP / 40.3 mm
  • Depth: 60 mm
  • Power requirements: 90 mA
PROS
  • • Zero-quadrature design unlocks unique phasing and modulation possibilities.
  • • Linear/exponential switching provides versatile CV response options.
  • • Compact 8HP footprint maximizes space in dense modular setups.
  • • Doepfer’s robust construction ensures long-term reliability and stability.
CONS
  • • Limited waveform selection compared to more expansive VCO modules.
  • • Power draw of 90mA can strain power supplies in smaller systems.
  • • XTune control can be a bit sensitive, requiring careful calibration.

Product Video

Key Features

Type Quad VCO
Waveforms Sine, Cosine (Zero Quadrature)
HP Width 8HP
Depth 60mm
Power Draw 90mA
CV Inputs Linear & Exponential CV, XTune, XFM, LFrq, LFM

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Frequently Asked Questions

Thru Zero means the sine wave crosses zero volts, allowing for more complex modulation and interaction with negative voltage sources, adding richness and depth to the signal.
While capable, its true strength lies in experimental territory. It can produce classic sounds, but excels when pushing the boundaries of phasing and modulation.
The XTune provides finer, more precise tuning adjustments than a simple knob, allowing for microtonal exploration and accurate pitch matching.

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