Doepfer A-110-1

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Doepfer A-110-1

Doepfer

A-110-1

4.5 Expert Rating

Product Info

Article Number: 154955
Brand: Doepfer
Model: A-110-1
Price: $170.50

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

The A-110-1 is a cornerstone of the Eurorack world, and for good reason. It's a solid, reliable VCO that delivers a classic, warm sound – perfect for anyone building a foundational modular patch or wanting that vintage analog vibe. It’s a workhorse module for experimental sound design and sequencing applications.

Product Description

Doepfer A-110-1, Standard VCO for Modular System A-100Module A-110-1 (VCO) is a voltage controlled oscillator. The A-110-1 produces frequencies in a range of about 8 octaves, of which four waveforms are available simultaneously: pulse, sawtooth, triangle and sine wave.

The frequency of the VCO is determined by the position of the range switch and tune controller and the control voltages at the CV inputs. Thus, the VCO provides the possibility of frequency modulation. You can set the footage (octave of the fundamental) with the selector switch. The Tune control is used to fine tune the VCO frequency.

In the pulse wave the pulse width can be adjusted manually or by voltage control or modulated (PWM).

, Width: 10 HP/ 50.5 mm, Depth: 55 mm (measured from the rear of the front panel), Power requirements: +90 mA (+12V)/ -20 mA (-12V)

PROS
  • • Classic Doepfer sound, reliably stable and musical.
  • • Excellent core oscillator for foundational modular patching.
  • • Versatile waveform selection provides broad sonic possibilities.
  • • PWM control offers expressive modulation options.
CONS
  • • Limited modulation options compared to more modern VCOs.
  • • The stepped tuning can feel abrupt for microtonal work.
  • • Relatively high power draw for a single module.

Product Video

Key Features

Type VCO
Waveforms Pulse, Sawtooth, Triangle, Sine
HP Width 10 HP
Depth 55 mm
Power Draw Approximately +12V: 25mA, -12V: 10mA
CV Inputs Two CV inputs for frequency control

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Frequently Asked Questions

While the A-110-1 is stable, its stepped tuning can introduce slight inaccuracies compared to VCOs with finer CV control, making it less ideal for precise microtonal work.
The PWM range is adequate for both subtle and extreme modulation, offering a good balance of control without being overly narrow or excessive.
Absolutely, the sine wave is clean and usable for sub-bass tones or more delicate soundscapes; it’s a very functional and reliable sine source.

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