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Sequential Six-Trak, just serviced!

The Sequential Six-Trak is a vintage 1980s American six-voice analog synthesizer notable for being one of the earliest affordable multitimbral analog keyboards with a built-in sequencer.

Type
Analog polyphonic synthesizer

Model
Six-Trak

Manufacturer
Sequential Circuits

Country of Manufacture
United States

Era
1980s vintage analog era

Year of Introduction
1984

Controls
Parameter selection buttons, Data knob, Envelope controls (via menu), Oscillator and filter parameters (via menu), Sequencer controls, Unison and Stack mode buttons, Master Volume

Input
MIDI In
Cassette interface input (for patch and sequence backup)

Output
1 × 1/4" mono audio output
MIDI Out
Cassette interface output
1 × 1/4" headphone output

Power Supply
Internal AC power supply

Notable Features

• Six-voice analog subtractive architecture with Curtis oscillators and filters
• Multitimbral operation, allowing each voice to run a different patch
• Built-in polyphonic sequencer capable of chaining sequences
• Stack and Unison modes for thick mono or layered sounds
• One of the earliest affordable MIDI-equipped analog polysynths
• Known for warm pads, plucky sequences, classic basses, and vintage leads
• Compact design that retains the Sequential aesthetic and sound character

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Paul's Boutique has been buying, selling and consigning used and vintage music gear in Toronto's Kensington Market for twenty years- stop by if you're in town and have a play!