“This unit is used, but it is fully functional and has been recently serviced, has new battery for the memories which will provide years of trouble-free service. The power supply capacitors have also been replaced to ensure quiet operation.

I’m selling this unit as is – it is a used instrument, but has been well cared for in my home studio.The side wood panels have a few character scratches and dings as seen in the photos. The unit otherwise is spotless with all knobs, buttons, keys and pitch and glide wheels trouble-free.

The unit is also shipped with USB flash drive with many documents, factory patches, schematics etc included.

It has an upgrade EEROM OSv14 installed which allows for program changes via knob. Also shipped with the unit is the original working factory ROM chip” Click here to visit listing on eBay

” A very capable synthesizer with 99 presets, full parameter control, 6 voice polyphony w/unison, simple classic design, and a six track sequencer built in to the synth! ” Click here to visit listing on eBay

“This Vintage Six-Trak Synthesizer is fully functional and in Very Good to Excellent Condition. The synth has been well taken care of with all knobs and pads intact. The wood side panels and keys are clean. The keyboard will come in a RoadRunner Flight Case measuring 29 x 18 inches. ”
Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 04 October 2018, Comments Off on Sequential Circuits Six-Trak

” Sequential Circuits Six-Trak Vintage Analog Synthesizer. In excellent condition. Everything works on this synth. Volume control is clean, no noise at all…. Thanks for looking!” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 27 September 2018, Comments Off on Sequential Circuits Six-Trak

“Six-Trak Synthesizer – Everything works and is in Very Good Condition. Midi settings all set to factory settings using the midi ports. This synth has been well taken care of and all knobs and pads feel like they have experienced low use. The wood side panels are in great shape and the keys are clean. The Inside shows no sign of repairs or abuse. Clean inside and out. Please see the photos. ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 20 September 2018, Comments Off on Sequential Circuits Six-Trak

“lots of very very cool sounds on this thing, from Emerson Lake and Palmer, To 80’s dance.
all of the buttons, controls and keys work. due to its age, it may need a tune up, maintenance, or updating because of old internal electronics. one of the wood side panels has a chip as shown.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 13 September 2018, Comments Off on Sequential Circuits Six-Trak

“Free Shipping on this old vintage synth. been sitting unused for a long time. powers up, its keys work, the programs can be edited and altered. some of the keys (on some patches) sound sharp or flat, with other matching keys. tuning issue? some great patches, both wheels work. all the buttons produce. sounds on this thing can take you back 40 years. some sounds Like Emerson Lake and Palmer. chip in the wood, on the left side panel. sold as is due to its age, and being electronic item. ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 06 September 2018, Comments Off on Sequential Circuits Six-Trak

“Up for auction is my 100% fully functioning Sequential Circuits Six-Trak. It shows relatively minor wear considering its age (see pics). It comes with the original manual.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 06 September 2018, Comments Off on Sequential Circuits Six-Trak

“here im selling the sequential circuits six-trak in very good condition almost without any mark on it
it has just been serviced and the battery renewed including a battery holder for easy battery replacement

this synth is not a prophet 5 but it has the classic analog sequential sound very warm fuzzy clearly from the same group of instruments
sounds way better then any new dave smith synth thats for sure” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 23 August 2018, Comments Off on Sequential Circuits Six-Trak

“This Vintage Six-Trak Synthesizer is fully functional and in Very Good to Excellent Condition. The synth has been well taken care of with all knobs and pads intact. The wood side panels and keys are clean. The keyboard will come in a RoadRunner Flight Case measuring 29 x 18 inches. The case has some dings but has kept the keyboard protected. Please see our photos. ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 23 August 2018, Comments Off on Sequential Circuits Six Trak

” Due to emergency, need to sell some synth stuff. Up for auction is one Sequential Circuits Six Track Synthesizer. This synth is functional and sounds beautiful, but has some issues. First, the rubber chicklet buttons are terrible, they should be replaced. Sometimes you can get them to work. Second, the power switch is stuck in “ON” position. Good news is it also comes with some extras. This auction includes the Sequential Circuits foot pedal switch. This switch is a helpful assist to work around not having to use some of the very finicky buttons. This unit has been upgraded with the Wine Country IC, so it handles standard MIDI. I’ve included the original chip in the tube the upgrade came with. I’ve also included some other Wine Country paperwork and a new capacitor. Despite the issues, I know this machine makes beautiful sounds, but due to personal emergency cannot test all other functionality and this synth is being sold “AS IS.” Thank you.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 26 July 2018, Comments Off on Sequential Circuits Six-Trak

“This unit is in great condition.

This unit has recently come from a service and calibration. It is working and sounding as it should.

This unit has some minor cosmetic wear and tear on the face plate. It also has some on the wooden side panels. (please see all pictures.)” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 19 July 2018, Comments Off on Sequential Circuits Six-Trak

” here im selling the sequential circuits six-trak in very good condition almost without any mark on it
it has just been serviced and the battery renewed including a battery holder for easy battery replacement

this synth is not a prophet 5 but it has the classic analog sequential sound very warm fuzzy clearly from the same group of instruments
sounds way better then any new dave smith synth thats for sure

its very cute and surprisingly easy to program with the one fader parameter style programming”

Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 12 July 2018, Comments Off on Sequential Circuits Six-Trak

” here im selling the sequential circuits six-trak in very good condition almost without any mark on it
it has just been serviced and the battery renewed including a battery holder for easy battery replacement

this synth is not a prophet 5 but it has the classic analog sequential sound very warm fuzzy clearly from the same group of instruments
sounds way better then any new dave smith synth thats for sure

its very cute and surprisingly easy to program with the one fader parameter style programming
these are going up in price if you want a earn a very nice example of this synth make me a resonable offer please”
Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 21 June 2018, Comments Off on Sequential Circuits Six-Trak

“This is a 1983 Sequential Circuits Six-Track six voice analogue synthesizer. It is one of the first analogue synths to include MIDI in and out and has 64 preset sounds. It has six voices that can be stacked individually as well as plays with six-voice polyphony. I am including the original manual. Because of it’s vintage nature it is being sold as is. Everything is tested and working.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 07 June 2018, Comments Off on Sequential Circuits Six-Trak

“For sale is a Sequential Circuits Six-Trak analog synthesizer. Cosmetically the synth is in pretty good condition considering it’s age with only minor scuffs and blemishes, however whenever you throw midi at it it begins to act up, either dead voices start appearing or it cuts out completely until you resit the battery. For this reason it has to be under for repair.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 07 June 2018, Comments Off on Sequential Circuits Six-Trak

” Sequential Circuits Six-Trak Model 610 Vintage Analog Synth with original manuals and guides and Evolution UC33 USB/MIDI controller

Here’s a great and affordable package – a killer vintage analog synth and a modern USB/MIDI controller to bring you into the present day for all of your routing and recording needs! See full descriptions and specs below. The Six-Trak is an awesome unit and a straightforward way to break into analog synthesis. This one comes with the original manual as well as programming notes and a quick start guide. The Evolution UC-33 USB MIDI controller comes with a USB cable and its original box.

The Six-Trak is in excellent working order, all of the keys and buttons work properly. Some cosmetic wear typical of a 30+ year-old unit (see pictures). Power cord is taped up and could probably stand to be replaced. The Evolution UC-33 has some minor cosmetic wear but is in working order and includes original box.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 24 May 2018, Comments Off on Sequential Circuits Six-Trak

“This Six-Trak is in great condition, just came from a recent service and calibration. It is working and sounding great!

It has minor cosmetic wear and tear on the face plate, a bit more on the wooden side panels. (please see pictures)” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 24 May 2018, Comments Off on Sequential Circuits Six Trak

“This Six-Trak is in great condition, just came from a recent service and calibration. It is working and sounding great!

It has minor cosmetic wear and tear on the face plate, a bit more on the wooden side panels. (please see pictures)” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 17 May 2018, Comments Off on Sequential Circuits Six-Trak

“This is a 1983 Sequential Circuits Six-Track six voice analogue synthesizer. It is one of the first analogue synths to include MIDI in and out and has 64 preset sounds. It has six voices that can be stacked individually as well as plays with six-voice polyphony. I am including the original manual. Because of it’s vintage nature it is being sold as is. Everything is tested and working.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 03 May 2018, Comments Off on Sequential Circuits Six-Trak

“This is a Sequential Circuits Six-Trak synthesizer in great working condition. Multi timbral synth with advanced early MIDI capabilities. You can multi stack to get monster analog sounds. It’s got some really nice custom made looks like birch ends. This is the Japanese 100VAC version but the studio I got it from insisted they always used it at 117VAC without issue. I contacted Wine Country because they sell a US transformer for this for only $10 and David Sesnak formerly of Sequential Circuits, emailed me back and advised it’s not necessary, these 100VAC Six-Traks work fine at 117VAC.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 26 April 2018, Comments Off on Sequential Circuits Six-Trak

” This is a Sequential Circuits Six-Trak synthesizer in great working condition. Multi timbral synth with advanced early MIDI capabilities. You can multi stack to get monster analog sounds. It’s got some really nice custom made looks like birch ends. This is the Japanese 100VAC version but the studio I got it from insisted they always used it at 117VAC without issue. I contacted Wine Country because they sell a US transformer for this for only $10 and David Sesnak formerly of Sequential Circuits, emailed me back and advised it’s not necessary, these 100VAC Six-Traks work fine at 117VAC.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 12 April 2018, Comments Off on Sequential Circuits Six Trak

“Ive put in a good effort trying to get this thing fixed, but I think it’s time to pass it on. Essentially, the main issue is that the sixth channel is screwed up. This usually manifests by not producing any sound whenever you hit a note on the six channel, and unfortunately, it’s kind of unpredictable which you know will be on that sixth channel. You can partially correct the problem by setting the voices to monophonic, but that ruins a lot of the fun. Additionally, some of the numeric buttons aren’t working very well.

The last guy that took a look at it gave me a description of what’s going on. I’ve quoted him below.

“Its pretty beat – membrane switches are pretty shot, something is busted in channel 6 and the case is rough. (…) All 6 of your chips are good, it’s something else in channel 6 not the synth chip. The chips are CEM3394″

He’s encouraged me to sell it for parts since he believes a repair of this particular unit might be kind of difficult. Of course, that’s just one opinion.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 22 March 2018, Comments Off on Sequential Circuits Six Trak

“Sounds super awesome and works well. Used very rarely in non smoking studio. Bid with confidence. Starts at .99” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 01 March 2018, Comments Off on Sequential Circuits Six-Trak

“SEQUENTAIL CIRCUITE KEYBOARD IN EXCELLANT CONDITION” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 22 February 2018, Comments Off on Sequential Circuits Six-Trak Project Machine

“This is a Sequential Circuits Six-Trak. Powers up, all lights come on but don’t go out. No sound, no response to buttons or keys. Power switch is broken and looks like it has been connected straight through, so it powers up as soon as it is plugged in. All parts appear to be present. Sold as is for parts or repair only. 117 VAC, model 610.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 08 February 2018, Comments Off on Sequential Circuits Six-Trak

“Sequential Circuits Sx trak , superb condition and all working , new battery

Buttons all work but the number 2 can be a bit sensitive ( probably needs a clean ) but everything is working ,a new memory battery was fitted
by its previous owner and it has all the original presets .” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 07 February 2018, Comments Off on Sequential Circuits Six-Trak

” The Sequential Circuits Six-Trak Polyphonic Synthesizer may be labelled as a “beginner model” by the company, but the features and functionality make it a prime choice for any synth enthusiast. 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. Throw in an expansive onboard sequencer and single knob for one parameter control to achieve a world of sound right out of the gate.

I’ve owned this synthesizer for 2 years and have had nothing but joy from it. The only reason I’m selling is so I can afford to buy… another synthesizer, of course. Comes with 99 great patches. You can edit those to make most sounds you might want. The sequencer is very simple but intuitive and includes some fun features such as multitimbrality (multiple patches at once) and volume for each voice. It’s also one of the few synths from this period that has full midi functionality, so you can plug it right to the computer or a sequencer. Overall this thing is in great condition. The wood panels are slightly scuffed on the corners but no actual damage. All buttons and keys work. You don’t wanna miss out on this 1984 polysynth! Does NOT include stand. ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 25 January 2018, Comments Off on Sequential Circuits Six-Trak

” 1984 Sequential Circuits Six-Trak in great condition, serial #245. I bought it from a sixth form college last year as the department that owned it was shutting down. I’ve since replaced the memory battery and reloaded the factory presets. The synth is now fully functional with all 6 voices, filter, LFO, amp, sequencer, stack, arpeggiator, wheels* etc working perfectly, and makes some really great sounds in poly, unison and stack modes. It works with a foot controller though I’m not including one.

The ‘1’ key needs some pressure before it registers, the top left corner is slightly chipped (pictured) and there are light patches on the sides where stickers used to be (also pictured).”
Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 25 January 2018, Comments Off on Sequential Circuits Six-Trak

“Vintage Sequential Circuits Six-Trak in excellent working condition. Very minimal cosmetic wear. Great analog classic sounds! ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 18 January 2018, Comments Off on Sequential Circuits Six-Trak

“This is a vintage Six Trak synth from 1984 in excellent condition! All knobs, sliders and buttons work. No broken or missing keys. It’s super clean.” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 11 January 2018, Comments Off on Sequential Circuits Six-Trak

“Good condition . Everything works as should .. Sounds great .” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 21 December 2017, Comments Off on Sequential Circuits Six-Trak

“Here is a nice vintage SC Six Trak synth. Looks and sounds great! Recently serviced with zero issues. ” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 30 November 2017, Comments Off on Sequential Circuits Six-Trak

“For sale one Sequential Circuits Six-Trak synthesizer in very good working condition. It is a US voltage 110v model

All keys, knobs,buttons and sliders are original and working correctly.

There is some minor crackling from some of the pots and sliders when moved. It would benefit from a service but is being sold as is.

The front panel has minor marks from use, the side panels have some scuffs.”
Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 30 November 2017, Comments Off on Sequential Circuits Six-Trak

“Awesome little synth. Very flexible despite the somewhat unusual interface. Sounds awesome. Sold as is.” Click here to visit listing on eBay