Dive into the world of modular synthesis with the Doepfer A-108 VCF8. This versatile module is a sound designer's dream, offering a rich palette of sonic possibilities. Built around the renowned transistor ladder design, akin to the classic Moog ladder, this filter provides a wide range of low-pass filtering options. With its 8-stage low-pass filter, you can select slopes of 6, 12, 18, 24, 30, 36, 42, or 48 dB per octave, allowing for precision audio sculpting. Out of these, the most effective slopes—6, 12, 24, and 48 dB—are pre-routed to outputs, making it exceptionally user-friendly for real-time sound shaping.

The A-108 is not just about filtering; it's a flexible tool for creative expression. Its resonance can be adjusted to the point of self-oscillation, turning it into a sine wave oscillator. This feature is perfect for those who want to explore the boundaries of conventional sound. Additionally, the module comes with an external feedback input, enabling integration with other modules to create complex modulation effects.

Control is at the heart of the A-108, with three control voltages (CV1, CV2, CV3) and individual attenuators for CV2 and CV3, giving you nuanced frequency manipulation. Whether you're pushing the audio input for intentional distortion or smoothly modulating frequencies, this module ensures your sound remains dynamic and engaging.

Key Features:

• 8-stage low-pass filter with slopes of 6, 12, 18, 24, 30, 36, 42, and 48 dB per octave
• Pre-routed outputs at 6, 12, 24, and 48 dB for optimal sound selection
• Resonance adjustable to self-oscillation
• External feedback input for advanced sound design
• Manual frequency control with three CV inputs and separate attenuators for CV2 and CV3

Product specs

FAQs

What type of filter is the Doepfer A-108 VCF8?

The Doepfer A-108 VCF8 is a low-pass filter with a selectable slope of 6, 12, 24, or 48 dB per octave, making it versatile for different sound shaping needs in modular synthesizer setups.

How many inputs and outputs does the Doepfer A-108 have?

The Doepfer A-108 VCF8 features one audio input and multiple outputs, including 6 dB, 12 dB, 24 dB, and 48 dB low-pass outputs, allowing for a range of filtering effects.

Is the Doepfer A-108 VCF8 suitable for creating classic analog synth sounds?

Yes, the Doepfer A-108 is well-suited for creating classic analog synth sounds due to its Moog ladder filter design, which is known for its warm, smooth filtering characteristics.

Can the Doepfer A-108 VCF8 be used in a Eurorack modular system?

Yes, the Doepfer A-108 VCF8 is designed for Eurorack modular systems, requiring 12 HP of rack space and offering compatibility with standard Eurorack power supplies.

How does the Doepfer A-108 VCF8 handle resonance?

The Doepfer A-108 VCF8 offers adjustable resonance, allowing it to reach self-oscillation, which is ideal for creating sharp peaks and enhancing the harmonic content of your sound.