“Up for auction is a Sequential Circuits Six-Trak vintage analog synthesizer. This model is notable for being one of the first multi-timbral synths, equipped with MIDI and an on-board six-track digital sequencer. The unit is fully functional with one exception; track 5 does not work. Everything else on the synth is good. Physically it’s in good shape, with a repaired crack in the wood (see pics). Other than that it just has a few minor cosmetic marks here and there, typical of a 30 year old used piece of gear. ” Link

“The unit is working but selling as is for parts, refurbishing. All keys and functions seem to be working. I did not check the midi ports. The on/off switch works but is incredibly hard to turn on/off. It appears someone replaced the audio out jack. It is missing one knob for speed and shows wear, notably some rust, a chip in the wood on one side, and upon close inspection the black keys on the left of the board are chipped in the back (where you can’t see) where there should be full “hooks” if you will that prevent the black keys from sliding or popping out of place. They are seated fine and don’t move at all but if they were pulled on they would dislodge-it’s easy to put them back and again, they are in place firmly and all work just fine. Rubber of the power cord at exit in back is frayed but internal wiring appears ok and provides power but power cord might need replaced. Overall cosmetics aren’t great but seems the electronics are good. Selling as is for parts, repair or refurbishing. (I’ll try to put up a video tomorrow so you can hear it).” Link

“Description: . comes as seen. Classic Vintage Synthesizer. see pictures. Please see all pictures. dated on the inside 1984. all original and unmodified except for the red chicken head track volume knob.

Condition: Great shape. some minor scuffs and light wear only. no damage or issues. tested and working good. No Issues. ” Link

“I am selling the amazing and beloved Sequential Circuits Six-Trak. I have owned this Synth for about 2 years and have upgraded various areas of the Synth. Despite some minor cosmetic scuff marks due to its age, this Six-Trak is in pretty good shape. The right wooden side panel is broken and is something that can be fixed easily by applying some wood clue or by buying new wooden side panels for only $60 on “gmusynth” Some of the key features for my particular version of the Synth are.

1. Multiple Outs! This synth was modded so that all voices have their own output on the back. (AWESOME!)
2. I recently upgraded the Firmware from v9 to the latest version from tauntek v14.
3. Fixed some of the broken keys, (cosmetics)
4. Bought a new knob cap for the main volume knob (which I haven’t attached yet because the new knob cap needs to be modified, cosmetics)

You can read up on the new firmware version by googling tauntek SixTrackBug. This firmware version fixes a lot of the parameter issues with previous versions and adds some new features.” Link

“Hello! I’m selling a Vintage Sequential Circuits Six Trak Analog Synthesizer. This synthesizer has been tested, played, and turned on in order to verifiy that everyone works perfectly. From 1983, this vintage keyboard makes beautiful sounds when considering it’s age.” Link

Sequential Circuits, Six-Trak @ 07 September 2017, Comments Off on Sequential Circuits Six-Trak

“Used and in full working order from a smoke free studio. Selling due to recent upgrades. Great little synth. No original box or manual I’m afraid. Item will be well packaged.” Link

Sequential Circuits, Six-Trak @ 24 August 2017, Comments Off on Sequential Circuits Six Trak

“A Vintage Sequential Circuits Six-Trak Analog Synthesizer with Operation Manual. Synthesizer receives power, and to my knowledge, works properly. 49 keys. Model: 610 Serial # 610-003276. Dated from 1983 based on the publication of the Operation Manual. The Operation Manual has instrument instruction as well as a wiring diagram and play sheets all unused. A little bit of writing on the Factory Program List page.

The wood cabinet shows very minor blemishes on right edge, and a chip on the cabinet on the left side (see pics). Does not affect play.

Please see images to qualify the condition of the item.

The synthesizer will be properly packaged and shipped via USPS.

I bought this synthesizer nearly 10-15 years ago, and have barely used it. Time to get it to someone who will.” Link

Sequential Circuits, Six-Trak @ 24 August 2017, Comments Off on Sequential Circuits Six Trak

“Up for auction is a Sequential Circuits Six-Trak vintage analog synthesizer. This model is notable for being one of the first multi-timbral synths, equipped with MIDI and an on-board six-track digital sequencer. The unit is fully functional with one exception; track 5 does not work. Everything else on the synth is good. Physically it’s in good shape, with a repaired crack in the wood (see pics). Other than that it just has a few minor cosmetic marks here and there, typical of a 30 year old used piece of gear.” Link

Sequential Circuits, Six-Trak @ 10 August 2017, Comments Off on Sequential Circuits Six-Trak

“Excellent condition for a 30+ year old synth. I am the second owner (bought in 1990) and have kept this early production model in my smoke free studio ever since. Never gigged or toured. Great sounding unit with no issues. You can find the manual online which I highly recommend. This thing is surprisingly deep in its layering abilities. Sorry, no international bidders please. Good luck bidding!” Link

Sequential Circuits, Six-Trak @ 03 August 2017, Comments Off on Sequential Circuits Six Trak

“Selling my incredible Six Trak. Upgrading for some different pieces, so this baby needs a new home. Sounds great. Recently cleaned and serviced. I don’t have the manual, but the Six Trak manual .PDF is available online. I recommend checking that out once you pick this up to learn to program this synth. The layering capabilities is what makes this synth so great in my opinion! Thanks for checking!” Link

Sequential Circuits, Six-Trak @ 13 July 2017, Comments Off on Sequential Circuits Six-Trak

“It’s in nice shape! A much more affordable way to get that Prophet sound! Also accepts midi cc so easy to hook up a bcr2000 or similar knob box. All voices work saving and editing work, arp works, sequencer plays the preset sequences! ” Link

Sequential Circuits, Six-Trak @ 06 July 2017, Comments Off on Sequential Circuits Six-Trak

” Wirklich rär in 9/10 zustand, alle räder und knopfe funktioniert perfekt ausser der nummer 4 musst bisschen schwerer gedrückt, aber trotzdem funktioniert jeden mal.
Mit strom adapter für deutschland etc.” Link

Sequential Circuits, Six-Trak @ 06 July 2017, Comments Off on Sequential Circuits Six-Trak

“I’m unfortunatley selling this keyboard due to my current life circumstance, as im going travelling for a long period of time. I would love to pass this synth on to someone who will make the most out of this beautiful machine. I’m very saddened to part from this beauty, although i hope for somebody to continue making amazing music with it…. as its done for me 🙂 xoxo

Fully serviced and Working perfect, Great condition. Very easy to use, even if you’re a beginner
in my opinion no need for extra controllers to simplify the synth.

p.s. I must mention this has been used in some great sessions, with some A-list muscians at metropolis studio London…. Rhianna, Adele e.g
also left on the machine are some gems, really great presets (over 60+) which were edited and used by some top industry musicians.” Link

Sequential Circuits, Six-Trak @ 29 June 2017, Comments Off on Sequential Circuits Six-Trak

“SCI (Sequential Circuits) six trak synthesizer. Home use only, serial number is 001544 (see pic). Fully functional when last tested a day or so ago. All buttons and functions are working, all 6 voices work, although the pitch bend wheel isn’t “linear”, it might need adjustment. Sequencer records and plays back etc…” Link

Sequential Circuits, Six-Trak @ 29 June 2017, Comments Off on Sequential Circuits Six-Trak

“This is 80s classic synthesizer in good working condition. It is a joy to use and has a huge variety of controls. Lookup this synthesizer on Google for a full list of features. There is only one issue. One key is chipped and the black key is stuck down as you can see in the photo. The chip and spring are in the unit and should be easily repaired. This is your chance to own a classic! It will come in the original box even though the box itself shows its age.” Link

Sequential Circuits, Six-Trak @ 22 June 2017, Comments Off on Sequential Circuits Six Trak

“Wirklich rär in 9/10 zustand, alle räder und knopfe funktioniert perfekt ausser der nummer 4 musst bisschen schwerer gedrückt, aber trotzdem funktioniert jeden mal.
Mit strom adapter für deutschland etc. ” Link

Sequential Circuits, Six-Trak @ 22 June 2017, Comments Off on Sequential Circuits Six Trak

“SEQUENTIAL CIRCUITS SIX TRAK SYNTHESIZER 610E RETRO VINTAGE KEYBOARD VERY RARE

ONE BUTTON MISSING, NO BATTERY SO NO MEMORY BUT MAINS FINE

IT HAS BEEN USED AND SHOWS SIGNS OF USE BUT OVERALL GOOD CONDITION

RETRO VINTAGE KEYBOARD” Link

Sequential Circuits, Six-Trak @ 15 June 2017, Comments Off on Sequential Circuits Six-Trak

“Excellent physical condition minus a few knicks on the case

• Lived in non-smoking, loving home for 30+ years

• Recently professionally cleaned all pots, wheels, and reconditioned all buttons and keyboard contacts, resulting in like-new operation

• Completely Functional: All buttons and keys work, all pots work cleanly, and it sounds deep, rich and yummy as an analog synth should

• Includes original Sequential box!” Link

Sequential Circuits, Six-Trak @ 08 June 2017, Comments Off on Sequential Circuits Six-Trak

“This is a Sequential Circuits Six-Trak in Great Shape!! It come with the original box and manual!! All the keys work beautifully and some of the buttons/knobs get a bit scratchy when not in use. It works and sounds fantastic! Sorry to let it go but I just got an OB-6 and it needs a place to live in my rig. ” Link

Sequential Circuits, Six-Trak @ 08 June 2017, Comments Off on Sequential Circuits Six-Trak

“This synth has had just one previous owner (purchased in 1985). Comes with the original sequential box.” Link

Sequential Circuits, Six-Trak @ 01 June 2017, Comments Off on Sequential Circuits Six Trak

“Wirklich rär in 9/10 zustand, alle räder und knopfe funktioniert perfekt ausser der nummer 4 musst bisschen schwerer gedrückt, aber trotzdem funktioniert jeden mal.
Mit strom adapter für deutschland etc.” Link

Sequential Circuits, Six-Trak @ 01 June 2017, Comments Off on Sequential Circuits Six-Trak

“Fully functional in good condition though the left wood side panel has some damage and the paint is chipped in places with some rust on the metal casing – see photos. None of this affects the affect functionality of the synth, which is a thick and juicy joy! Has the unmistakable Sequential Circuits sound and oozes character. Selling to raise money for a Prophet 12.” Link

Sequential Circuits, Six-Trak @ 01 June 2017, Comments Off on Sequential Circuits Six-Trak


Features of this Six-Trak:

• Excellent physical condition minus a few knicks on the case

• Lived in non-smoking, loving home for 30+ years

• Recently professionally cleaned all pots, wheels, and reconditioned all buttons and keyboard contacts, resulting in like-new operation

• Completely Functional: All buttons and keys work, all pots work cleanly, and it sounds deep, rich and yummy as an analog synth should

• Includes original Sequential box!” Link

Sequential Circuits, Six-Trak @ 04 May 2017, Comments Off on Sequential Circuits Six-Trak

“Lovely analog synth. Almost museum quality as far as appearance is concerned with a couple of marks on the side woodwork.

Whatever anyone says about soft synths, there’s something about real warm vintage analog synths! There’s a warmth that digital synths just can’t do. See http://www. flitemedia .com /studio /sci-sixtrak/

Built with 48 velocity-sensitive keys and the same Curtis circuitry found in the company’s more expensive models, the Six-Trak boasts six voice polyphony and six VCOs for solid lead, bass, and pad modeling. Only issue is that the volume goes up to 9.5 or so then back to 0. Doesn’t affect me as my amp goes to 11!!” Link

Sequential Circuits, Six-Trak @ 13 April 2017, Comments Off on Sequential Circuits Six Trak

6t “Up for sale is a Vintage Sequential Circuits Six Trak Analog Synthesizer with Manual and Original Box. This synthesizer has been tested and tuned professionally verifying all functions of the unit are properly working. Model: 610 Serial # 610-000499. Dated from 1983 based on the publication of the operation manual. The operation manual has instrument instruction as well as a wiring diagram and play sheets all unused. If you never heard what one sounds like you will be impressed at the quality and unique sound that this instrument creates. Also included is a Sequential Circuits brochure.

Condition Issues: Wood cabinet shows minor blems on edges. Operation manual shows storage wear from being folded inside of box. Original box and foam packaging show storage wear but intact.” Link

Sequential Circuits, Six-Trak @ 23 March 2017, Comments Off on Sequential Circuits Six-Trak

g6 “Sequential Circuits Six Trak, Polyphonic Analog Synthesizer in excellent condition. Very clean, wood side cheeks in great shape, was in use in my studio for the last 2 years, no scratchy pods, no miss-firing keys, all buttons work. It features a wonderful arpeggiator and and a simple sequencer.” Link

Sequential Circuits, Six-Trak @ 16 March 2017, Comments Off on Sequential Circuits Six-Trak

6trak “A classic synth in fair condition. The six trak needs to be tuned and there is a crack in one of the keys but otherwise the synth looks and sounds great. Feel free to message me with any questions. I’m quite reluctant to sell this synth but have come to the conclusion that I don’t use it enough to justify having it.” Link

Sequential Circuits, Six-Trak @ 16 March 2017, Comments Off on Sequential Circuits Six-Trak

6track “Apart a bit of dust here and there from my room (the white shadows you can see on the surface is only dust), you certainly won’t find an other model in this Mint condition. The previous owner was the first owner of the synth. He bought it NEW at the end of the 90’s (don’t remember the exact date). Crazy when you think it’s the first synth using MIDI from… 1983. I tend to believe it when seeing the condition of this unit. (Notice for example that the buttons are grey, their original color, not yellow or orange as you can see on all of the other units today.) This guy was a true compulsive collector and has pretty much never used, just keeping it like a piece of museum. I bought it this year, in April 2016. It’s a real pitty I had no time to used it more than 10 hours 4 or 5 times and have to sell it now.

It’s a bit sad because I love its dark funkyness and also its Boards of Canadaïsh possibilities for very moving and strange cinematic pads. Some people could compare it to a Matrix 1000, but it’s a different color and will fit perfectly if you have one (in that case, use it more for bass or leads, it will punch the pads of your Oberheim in a very nice interactive bread and butter way).

I like its “primitive” steppy filter which gives colors you don’t hear in other synths (nothing to see with the not-so-great stepping of the SE-1 I could compare). 1 OSC, like the 106, but darker, more unusual than the Roland which is “too popular” nowadays. If you want a sound that is different from the Juno’s (and all the emulations), it’s a seriously good and still cheap alternative.

Why the name Six Trak ? Because it’s poly-timbral and you can create and play up to 6 monophonic tracks (not tested, I like too much poly). Beware, the audio output is mono though. Or to play up to 6-notes like a normal poly. I was a bit scared about programming, but the buttons and the knob “value” work like a charm (and in Mint condition), and surprisingly quick to edit. There is an ipad editor for controling it too, and also a free vst WIN/MAC you can find on CTRLR.” Link

Sequential Circuits, Six-Trak @ 09 March 2017, Comments Off on Sequential Circuits Six-Trak

used sixtrak ” Very stable, all functions working. A few scuffs as with any 30+ antique, but general condition is evidenced by the photos.I have owned it for 5 or more years and upgraded the battery. All original save one knob. A sweet little synth with amazing analogue purity. Has been used in a smokeless studio, covered and protected from dust, etc. Quite a bit of fun if you want to experiment with its sounds. I have a PDF manual and quite possibly a technical schematic. On a scale 1-10 cosmetically 8.0. Sonically, 10. Functions 10. Buttons, switches, keys 9.9. (buttons in the edit section from time to time double enter, or at least for me anyway. (same thing happens when I’m typing, so it ain’t for sure it’s the machine). Pitch and Mod wheel 10.
This is an authentic Six-Trak, all original. This is a good investment and a fun toy. I am parting with it only because of limited space in studio. ” Link

Sequential Circuits, Six-Trak @ 09 March 2017, Comments Off on Sequential Circuits Six-Trak

6t “Sequential Circuits Six Trak, Polyphonic Analog Synthesizer in excellent condition. Very clean, wood side cheeks in great shape, was in use in my studio for the last 2 years, no scratchy pods, no miss-firing keys, all buttons work. It features a wonderful arpeggiator and and a simple sequencer.” Link

Sequential Circuits, Six-Trak @ 02 March 2017, Comments Off on Sequential Circuits Six-Trak

sux0trak ” FULLY WORKING & LOVELY CONDITION THROUGHOUT (A FEW SCUFFS HERE & THERE – SERIAL NO. 001784)…PLENTY OF PHOTOS” Link

Sequential Circuits, Six-Trak @ 02 March 2017, Comments Off on Sequential Circuits Six-Trak

6t “Sequential Circuits Six Trak, Polyphonic Analog Synthesizer in excellent condition. Very clean, wood side cheeks in great shape, was in use in my studio for the last 2 years, no scratchy pods, no miss-firing keys, all buttons work. It features a wonderful arpeggiator and and a simple sequencer.” Link

Sequential Circuits, Six-Trak @ 02 March 2017, Comments Off on Sequential Circuits Six-Trak

six-trak “Sequential Circuits Six Trak / Track Vintage Analog Synthesizer Six-Track

in good used shape as shown
seems to be functioning well
hooked up to speaker all keys work functions seems to work
plug has some fraying – see pics” Link

Sequential Circuits, Six-Trak @ 23 February 2017, Comments Off on Sequential Circuits Multi-Trak

8sedmultitrak “• This is an American unit running at 110v so uses a step down converter for use within the UK (included).

• The only minor issue I can find is that one of the keys is not as responsive as the others. It does work but needs more pressure than the others – nothing a good clean or professional service couldn’t sort out. Please feel free to come round and fully examine and test out if you are interested.

What’s Included:” Link

Sequential Circuits, Six-Trak @ 23 February 2017, Comments Off on Sequential Circuits Six-Trak

6-trak ” This vintage analog synth was purchased new in 1984 and has had one owner. It has one damaged, but fully functioning key. Otherwise, the synth is in very good condition.

– Six-voice multi-timbral hybrid analog synthesizer with six-track sequencer
– Polyphonic and Unison modes
– Four-octave keyboard
– 100 user-programmable instrument programs
– MIDI” Link