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Synton Fenix III Sequencer

Synton Fenix III Sequencer

Brand: Synton

Regular price £5,450.00 GBP
Regular price Sale price £5,450.00 GBP
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Unbelievably powerful modular analogue sequencer. One of only 25 ever made.

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Product Description

Synton Fenix III sequencer for sale. One of only 25 ever made, just over 10 years ago. Designed to be the ultimate analogue sequencer.

Packing three channels of sixteen step sequences, with two sets of CV and gate patterns available on channel A, and a wealth of other modules for generating control voltages, gates, and triggers, the Fenix 3 is a true power house of possibilities. Modulation and manipulation of sequences - or indeed any external voltages - in many different ways is easy thanks to five attenuators, a clock divider, and an abundance of inputs and utilities.

Commission sale on behalf of a client. If you have gear that you want us to look at selling on your behalf then please look at our Commission & Consignment page for more information and get in touch to discuss your requirements.


  • Comprises three main CV/Gate sequencers plus a 4th expander sequencer.

  • CV Sequencers are labeled: C1, B1, A1 (blue knobs), and A2 (red knobs) — the latter being an expander.

  • Can produce CV voltages ranging from 0 to 8 volts.

  • Offers clocking through the master clock, external MIDI, or external CV.

Quick Glance at Functionality:

  1. CV Sequencers (B1, C1, A1, and A2):

    • Operate standard 16 step sequencing (B1, C1, A1).

    • Modes: Forward, ping-pong, and random.

    • A2 acts as an expander for A1, offering 16 steps, 2x8 steps, or Inverse Mute mode.

  2. Gate Sequencers (C4, B3, A4, A3):

    • A gate is a continuous high signal whereas clock has a high & low state for every step.

    • The clock can be standard (50% high / 50% low) or variable (Pulse Width) .

    • The PW clock can be changed - eg 10% high/90%low or 30% high / 70% low.

    • CV can be used to modulate pulse width

    • Clock can be standard or variable (PW clock), or modulated with CV for creative sequencing.

In-Depth Look:

  • C4-C1 Interaction:

    • C4 acts as Gate expander 1.

    • Features 3-position toggle switches.

    • Leftmost yellow-capped toggle alternates between Gate/clk/PWM.clock.

    • 16 toggles above encoders select output patterns: Up for a Yellow switch pattern, Middle off, and Bottom for a clock pattern.

  • B3-B1 Interaction:

    • B3, known as Gate expander 2, syncs with the B1 CV sequencer.

    • Includes 2 output rows, selectable with the rightmost toggle.

    • 16 toggles above the encoders determine the pattern for Row 1 (Up), off (Middle), or Row 2 (Bottom).

Mastery over the Fenix III will demand experimentation and practice due to its modular design and multifaceted functionality. By intertwining diverse sequencers and utilizing various clocking modes, one can sculpt an expansive array of sequences and modulations.


Superb cosmetic condition with minimal signs of age or use. Please see photos or get in touch if you require more information on condition.

Voltage Information

220/240v unit. A step-up transformer will be required for use on 110/120v supplies. Please ask if you need advice on what to use. We do not recommend using cheap, generic Chinese mains transformers.


Zero rated for VAT.

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