Description
Essential Sequential! Early 80s Sequential Pro One 37-Key Monophonic Synthesizer, $2499! Cover of Off/On button missing.
The Sequential Circuits Pro One is a USA-made monophonic analog synthesizer produced between 1981 and 1984. Recognized for its powerful sound, hands-on control, and compact design, the Pro One has become a classic among synthesists, offering rich analog tones, deep modulation possibilities, and an onboard sequencer, all in a portable, performance-friendly format.
Specifications
- Synthesis Type: Analog subtractive
- Polyphony: Monophonic
- Oscillators: Two voltage-controlled oscillators (VCOs) with sawtooth, pulse, and square waveforms
- Filter: 24 dB/octave resonant low-pass filter
- LFO: One LFO with multiple waveforms
- Envelope Generators: Two ADSR envelopes (one for filter, one for amplifier)
- Sequencer: 40-note step sequencer and arpeggiator
- Keyboard: 37 keys (non-velocity sensitive)
- Outputs: Mono audio output, CV/gate connections
- Finish: Black panel with wooden end cheeks
Features
The Sequential Circuits Pro One delivers thick, punchy analog basses, cutting leads, and dynamic sequences with its dual-oscillator architecture and Curtis filter. The oscillators can be synced or modulated for complex harmonic content, while the 24 dB low-pass filter adds warmth and resonance. The Pro One’s built-in step sequencer and arpeggiator allow players to create evolving, rhythmic patterns on the fly, making it ideal for both live performance and studio work. The single LFO can be routed to multiple destinations, enabling vibrant vibrato, filter sweeps, and pulse width modulation. Its compact design and full analog signal path contribute to its status as a highly respected synthesizer with a distinctive, aggressive character that remains influential in electronic music production.
Country of Manufacture
USA
