Unleash the full potential of your modular synthesizer system with the Doepfer A-111-4 Quad VCO. Designed for sonic explorers who crave versatility, this module is equipped with four precision VCOs and a master VCO section, making it a powerhouse for creating expansive monophonic, paraphonic, and polyphonic sounds. Whether you're crafting lush sonic landscapes or sharp, biting leads, the A-111-4's comprehensive frequency modulation options—both linear and exponential—along with pulse-width modulation, offer endless creative possibilities.

At the heart of this module is the renowned CEM3340 chip, a triangle-core VCO that ensures rock-solid tuning across an impressive 10-octave range. Choose from saw, triangle, and square waveforms, each with individual outputs, and seamlessly blend them using output mixers and a master control unit. The A-111-4 isn't just about robust sound generation; it's also about precision and control, with a 1V/octave control input and sum outputs for both waveforms and control voltages.

Ideal for both seasoned modular enthusiasts and newcomers alike, the Doepfer A-111-4 Quad VCO is the ultimate tool for those looking to expand their sonic palette with precision and versatility.

Key Features:

• 4 individual VCO sections plus a master VCO section
• Capable of monophonic, paraphonic, and polyphonic operation
• Waveforms: saw, triangle, and square with individual outputs
• Frequency modulation (linear and exponential) and pulse-width modulation
• CEM3340-based VCO (triangle core) for superior tuning stability
• Size: 18HP wide, 40mm deep
• Power usage: 120mA (+12V), 100mA (-12V)

Product specs

FAQs

What waveforms does the Doepfer A-111-4 Quad VCO offer?

The Doepfer A-111-4 Quad VCO provides triangle, sawtooth, and squarewave outputs, allowing for a range of sound design possibilities in modular synthesis.

Is the Doepfer A-111-4 suitable for precise tuning in modular setups?

Yes, the Doepfer A-111-4 is a precision VCO, designed to offer stable and accurate tuning, making it ideal for complex modular synthesis applications.

How much rack space does the Doepfer A-111-4 Quad VCO require?

The Doepfer A-111-4 Quad VCO occupies 18HP in a Eurorack setup, so ensure your case has adequate space before installation.

What is the core oscillator type of the Doepfer A-111-4?

The Doepfer A-111-4 features a triangle core oscillator, which is known for its stability and smooth waveform transitions.

Does the Doepfer A-111-4 require a specific power supply?

Yes, the Doepfer A-111-4 requires a Eurorack case and power supply to operate, as it is a module designed for integration into modular synthesizer systems.