Sequential Circuits Six-Trak

Sequential Circuits Six-Trak Image

The Six-Trak is Sequential's beginner synth. It has typical Sequential sounds in an analog six oscillator, six voice synth. It is not fun to program, there is only one knob and you need to assign the parameter you wish to adjust to this knob. The assignment settings for the various parameters are listed in the center of the front panel. It does however feature MIDI with controllers for its parameters to make editing easier using a computer program such as Unisyn or other external MIDI controller.

Sequential Circuits Six-Trak Image

The Six-Trak features two operational modes: Polyphonic Mode and Unison Mode. In Unison mode, with all six oscillators, this baby gets fat, rich, creamy and wild making it an excellent stand-in for Moog-like sounds. Also, the Six-Trak is capable of interesting and complex sound effects, mostly thanks to useful cross modulation and the six oscillators. It also includes a simple 6-channel on-board sequencer (of little usefulness these days). Its biggest limitations were: shortest attack too slow for really percussive sounds, smallest vco frequency adjustment too big for Zawinul-style subtle frequency envelopes & LFO, and the lack of built-in chorus, which would have helped to thicken the rather thin sounds in Polyphonic mode. The SixTrak can be fun and cool but is overshadowed by its cousin - the Multi-Trak. It is used by Überzone and Cirrus.

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43 Visitor comments
October 7, 2010 @ 6:11 am
A great board- you wont be dissapointed - great for 70s/80s tangerine dream and moroder stuff especially.
I always wonder if the bafoons who claim that they bought some analog collectible from a thrift store for like $30 are totally lying- I tend to think so.
September 28, 2010 @ 5:57 am
I bought my six trak on ebay. In mono with external chorus and delay, the sound is INCREDIBLE. Very easy to use . I use it in multitimbral mode, 6 monofonics tracks on the sequencer, and in this mode, when the songs is run the 6 recorded tracks, you can edit one patch and tweak the knob (parameter 19) and all the tracks change the cutoff all together, creating a very cool effect. Or if you want you can use CC to change any patch parameter via sequencer. Now I want to do it the six outputs mod and then I will be happy (again).
September 1, 2010 @ 9:14 pm
I need instruction manuals for the sequential six-trak & drum traks. I just recently brought them used and donot know how to operate them, do anyone have manuals or know where I can obtain manuals? Please contact me via
September 1, 2010 @ 9:08 pm
I recently brought a used sequential circuits six-trak & drum traks, I donot know how to operate them, do anyone have instruction manuals or know where I can obtain manuals? Please contact me via my e-mail address.
June 9, 2010 @ 1:17 am
I bought this synth from Goodwill Thrift store today for 30 bucks. I got a killer deal and it sounds amazing. It is fast and easy to use among vintage synths. I love this guy and am amazed I only payed 30 dollars for this
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Rated 4.01 (384 Votes)

  • Check Price
  • The link above will take you to an eBay search for this synth to see active listings. If you don't find it there, try looking in our forum marketplace or post a wanted classified.
  • Specifications
  • Polyphony - 6 Voice Polyphony and 6 part Multitimbral
  • Oscillators - 6 VCO's (sawtooth, triangle, variable width)
  • Memory - 100 patches
  • Filter - 24 dB/oct lowpass w/ ADSR envelope
  • VCA - Standard ADSR
  • LFO - Yes
  • Keyboard - 48 keys
  • Arpeg/Seq - Arpeggiator (up/down) and 2-Track sequencer (up to 800 notes)
  • Control - MIDI (all parameters are midi controllable)
  • Date Produced - 1984
  • Resources & Credits
  • Images from

    Additional info submitted by Jeff Learman.

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