Vongon Paragraphs

Resonant lowpass filter with ADSR

• 4-pole analog low-pass filter with AS3320 chip
• AD envelope generator with adjustable frequencies from 0.05 Hz to over 300 Hz
• Balanced input and output with dedicated level control
• CV and MIDI control support for external synchronization
• True bypass and multicolor LEDs for signal monitoring

Analog filter with vintage heart

The Vongon Paragraphs is a four-pole analog low-pass filter with resonance and designed for maximum flexibility and ease of use. The circuit is based on the AS3320 chip, a modern replica of the same component used in legendary synthesizers such as the Sequential Prophet 5, Pro-One, Elka Synthex and the LinnDrum drum machine. The filter covers the entire audio spectrum and achieves self-oscillation at 70% resonance.

Creative control with extended envelope

Paragraphs' AD envelope generator is designed to offer extreme modulations: from 20-second slow cycles (0.05 Hz) to audio frequencies over 300 Hz, achieving sound effects typical of West Coast synthesis. Ideal for experimental sound design and dynamic creations.

Perfect for studio and live performance

Compatible with line and instrumental signals, the Paragraphs includes dedicated controls for input drive and output level, making it easy to switch between crystal clear sounds and distorted tones. The multicolor LED provides immediate visual feedback: green for normal signal, orange for impending overload, red for clipping.

Remote control via CV and MIDI

CV and MIDI control ports allow the envelope to be triggered in perfect sync with MIDI sequencers, Eurorack modules and DAWs, making the Vongon Paragraphs an extremely versatile instrument for any musical context.

Technical Specifications.

• 1/4" mono inputs/outputs
• 2.1mm DC connector (9 - 9.6 VDC, center negative)
• Dimensions: 5.7" x 4.7" x 1.5"
• True bypass
• Input impedance: 1MΩ
• Output impedance: <1kΩ
• Current consumption: max 100mA