Doepfer A-111-4
Professional music gear - detailed information and where to buy
Doepfer
A-111-4
Product Info
* Prices may vary. Check retailer for current pricing and availability.
The Doepfer A-111-4 is a workhorse VCO module, delivering rock-solid tuning and a classic analog sound. It's ideal for anyone wanting to build complex polyphonic or paraphonic patches in a Eurorack environment, especially those appreciating the reliable and robust build quality characteristic of Doepfer’s early designs.
Product Description
- Doepfer A-111-4
- Quad Precision VCO
- Perfect for polyphonic or paraphone patches
- Four precision VCOs with output mixers and a master control unit
- Waveforms: Triangle
- sawtooth and rectangle with individual outputs
- Minute 10 octave frequency range
- Master section with 1V / Octave control input
- Sum output of the individual waveforms and CV output (sum of all control voltages of the master unit)
- Width: 18 TE / HP
- Depth: 40 mm
- Electricity requirement: + 120mA (+ 12V) / -100mA (-12V)
PROS
- • Excellent frequency stability for accurate tuning across the range
- • Individual waveform outputs enable complex timbral layering and modulation
- • Compact 18HP footprint maximizes space in dense modular systems
- • Master section simplifies polyphonic sequencing and control
CONS
- • Limited waveform selection compared to more modern VCOs
- • Power consumption is relatively high for a single module
- • The older Eurorack format can be restrictive for some users
Product Video
Key Features
Type
Precision Quad VCO
Waveforms
Triangle, Sawtooth, Rectangle
HP Width
18
Depth
40 mm
Power Draw
+120mA / -100mA
CV Inputs
1V/Octave (Master)
Similar Products
Kawai K-200 ATX 4 WDB Piano
Pianos
$9,119
Piano, With AnytimeX-4 equipment, Millennium III mechanics with ABS carbon parts of...
Applause Jump Dark Matter
Other Acoustic Guitars
$362
Acoustic Guitar with Pickup, Type: OM with cutaway, Top: Solid European spruce, Back and...
NANO Modules ST-IN
Interface Modules
$149
Eurorack Module, Stereo input module and preamp for line signals, Gain control (+30 dB) and tilt...
Vostok Instruments Path
Mixer, Attenuator Modules
$153
Eurorack Module, Analogue morphing router, Interpolating 4-channel signal router for audio and...
Frequently Asked Questions
While newer VCOs might offer slightly improved stability, the A-111-4's tuning is exceptionally good for its age and design, providing reliable performance in most setups.
You’ll need an attenuverter or offset module to adapt the sequencer's output to the 1V/Octave standard, which is common in Eurorack.
Yes, the master section provides a centralized control point for all four oscillators, simplifying the creation of complex polyphonic or paraphonic sequences and chords.
