“Nice condition not mint but very good. J wire low serial with chassis mounted psu. I’ve owned it for several years and it’s been regularly serviced I had the power cord removed and a kettle lead put in its place much safer and easier to move around. I also had the keyboard bushings replaced about two years ago as the keyboard was shocking plays nicely now. The pro one badge came off in the studio and is unfortunately now lost but they are readily available on Facebook if you feel you need it. I’ve recorded with it gigged with it and it’s never once let me down. It can be a bit picky with power as in it likes an nice clean supply, if you have a pc or laptop running on the same circuit the analog oscillators will create hum, this is a common thing with a lot of vintage synths it also likes a good 10 or 15 mins to warm up. I will be really sorry to see it go but it’s just not getting the use these days and I’m a player not a collector. ”
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” 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”
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“Prophet 2000. Great condition(almost mint) , works perfectly and has had the disk drive replaced with a Lotharek (highly regarded) SD card reader (professionally installed by certified tech guy so it also looks great). Comes with SD card full of sounds from the sequential library and also has many other sounds from moogs, 808’s, solinas analogue synths etc.

This is one of the best condition Prophet 2000’s you are ever likely to find, it is in beautiful cosmetic condition. All encoders work as the should LEDS display works as they should.”
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“Used with scratches and scuffs. For parts/repair only. Powers on. Tones can be heard but there is heavy static.” Click here to visit listing on eBay

“The fine item you are considering is a Rare Vintage Sequential Circuits Multi-Trak Synthesizer Model 615 Keyboard No Power Supply. This cool vintage keyboard is being cold “as is” as I do not have a power supply and have no way to test it. My understanding is that these usually have an internal battery which will also need to be changed. The unit came out of long storage, and was quite dusty, but I cleaned it up pretty well, although the pitch bending wheel is still a bit grindy from dust. Cosmetically, the unit makes a nice overall impression, although one corner does show chipping/banging (see photos). Since I have no way to test this rather rare keyboard, I’m selling it “as is” at a low price that reflects that fact. ” Click here to visit listing on eBay

” Prophet 600. In great condition everything works. Had it serviced 1 year ago. Doesn’t get played enough.
I’ve owned for almost 30 years. Purchased in August of 1988.” Click here to visit listing on eBay

” Acquired with a lot of other audio equipment, has been tested and works. Minimal wear and very gingerly used.” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 28 June 2018, Comments Off on Sequential Circuits Pro One

“Sequential Circuits Pro One analogue synthesizer – restoration project

All keys, dials and switches present. Woodenside panels, main body and branding stickers all in good condition.

Serial number 100-1795. This is the more desirable J-wirekeybed model (as opposed to the less reliable membrane keybed on serial numbers8500 and above), also with the power supply mounted to the chassis (as opposed to thepower supply mounted to the circuit board leading to breaks on serial numbers1500 and below).

Most dials and switches alter the sound that isproduced but this keyboard needs repair / calibration and a full service to getit back to working order. Keys 25-32, 35 and 37 are not responding. ”
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Pro One, Sequential Circuits @ 28 June 2018, Comments Off on Sequential Circuits Pro One

“Sequential Circuits Pro One Synthesizer – Serial No : 100-8249
On/Off Power Switch faulty so no power at the moment, therefore unable to check functions.
Used
Sold as seen
Buyer to collect.” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 28 June 2018, Comments Off on Sequential Circuits Pro One

“Up for sale the iconic and fat sounding Sequential circuits pro one mono synth. In ok cosmetic condition and fully functional. All the buttons, switches and keys works as they should. Some pots are a little scratchy such as the noise pot. This synth sounds big and it really cuts trhough the mix. I really enjoyed the sequencer and the modulation features as well as the cv and gate interaction via external sequencers. Is great for bass metalic sounds, guitar type sounds, drones and fx anything 80s with a darker tone. I’m really gonna miss this one.” Click here to visit listing on eBay

Prophet VS, Sequential Circuits @ 28 June 2018, Comments Off on Sequential Circuits Prophet VS

“Very rare 80’s retro keyboard. I’ve personally owned this synth for over 8 years. Perfect working condition–pro-audio shop cleaning/inspection on 06/18/18. There’s some general external cosmetic wear from the years and the data slider has been replaced once. If you’re a just a gear head or do freelance work..this synth has a one of a kind sound perfect for taking any project to the next level.” Click here to visit listing on eBay

Prelude, Sequential Circuits @ 28 June 2018, Comments Off on Sequential Circuits Prelude

“Somewhat rare vintage synth. Shoot me an offer! All parameters function on this. The lowest c doesn’t play and the lowest g plays but is quieter than the other keys. There is a slight gap between the edge and the body as seen in 9th pic. Pots can be scratchy and the sound can be scratchy at times, but I think it’s only when the flanger is fully applied. Would love to sell to someone who can open it up and work on the internal stuff. All in all good condition but needs light general maintenance.” Click here to visit listing on eBay

Prophet 600, Sequential Circuits @ 21 June 2018, Comments Off on Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600.

One owner purchased in 1982.

Has original box it shipped and stored in.

Original instructions, foot pedal, and factory programs cassette tape included. ” 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

Prophet 600, Sequential Circuits @ 21 June 2018, Comments Off on Sequential Circuits Prophet 600

“This one is in really nice shape and is in great working condition. As you can see in the photos, this Vintage analog synth has been well looked after and has the regular wear and tear for a vintage synth of this age and pedigree.The unit has been fully tested, cleaned regularly and maintained well.All the keys, sliders, knobs, and switches are original and working as they should be.The front panel is clean with the usual marks & blemishes for a vintage synth of this age. Front panal has a very unnoticeable scratch (shown in photo)Back of unit has usual tour wear and tear as expected.The synth has been kept and stored in a climate controlled recording studio.Both beautiful side panels are brand new and without a blemish. (the originals are also included)This Prophet 600 is good looking and solid” Click here to visit listing on eBay

Sequential Circuits, Six-Trak @ 21 June 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

Drumtraks, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Drumtraks

“UK power supply. No mains power adaptor required. Fully working condition. Very heavy item!” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Pro One

“This Pro one is in nice cosmetic condition for it’s age,the top panel would be near perfect but for one blemish by the noise/ext knob.All lettering looks good, there is no static from the knobs,all keys trigger, the side boards have some dings and a small stain(they can easily be replaced w/ newly fashioned ones),the key action(not the signal)clatters kind of loudly(reliable speed is still good for me),though I’m unsure of what fix (cleaning,felt,rubber?)(How noisy are other Pro ones key actions?),I am sure of the cosmetic condition and the 100% sonic integrity,however I’m selling it as is(noisy key action, a quirk of a vintage synth?)” Click here to visit listing on eBay

Poly-Sequencer, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Poly Sequencer

“Up for sale is a pre owned Sequential Circuits Poly Sequencer Model 1005 for Prophet 5 Synthesizer ready to be shipped to your door. This unit powers on as seen in the photos but is otherwise untested. It is being sold as is with no guarantee of proper functioning condition whatsoever. Due to the nature of this item being vintage and untested I cannot guarantee it will still power on when it reaches the buyer. Please be sure to ask any questions and I’ll be at your service. Thanks! ” Click here to visit listing on eBay

Prophet 600, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Prophet 600

“Condition: B +: no problems in applications that normally use
Year of Manufacture: Unknown” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Pro One

” Still works though it needs a cleaning. Power cord was cut, I reattached it with wire caps so that I could make sure it worked, but it needs to be attached properly. Original wooden sides were replaced with custom wood. ” Click here to visit listing on eBay

Prophet 5, Sequential Circuits @ 14 June 2018, Comments Off on Sequential Circuits Prophet 5

” This Prophet 5 has been in my possession since the day it was purchased in 1979-1980 it is in perfect working condition it has been refurbished from top to bottom once in 2008 and just recently reviewed by Wine Country Sequential in 2017. All original no MIDI. 40 patches. Due to the age of this item. I suggest you come and play and inspect the item before bidding. This has been packaged by Wine Country Sequential and I have not removed it from it’s packaging. It has been professinally packaged for shippment. There are no refunds. This keyboard works great. It is in tune. It is cosmetically the best one you will find. I have taken great care of this keyboard for almost 40 years. IT has been refurbished by Wes Taggert one of the legends. And most recently revied and some minor repairs made by Wine Country Sequetial. This is the one. ” Click here to visit listing on eBay

Sequential Circuits, Studio 440 @ 07 June 2018, Comments Off on Sequential Circuits Studio 440

“Sequential Circuits Studio 440 in very good condition and perfect working

– OS 2.30 from Pointsource

– Pads are brand new

– LED display is brand new

– Floppy Drive have been replaced” 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

Pro One, Sequential Circuits @ 07 June 2018, Comments Off on Sequential Circuits Pro One

” I am the original owner of this Pro-One. I have had it serviced at Pro-Audio Electronics of Tampa, FL in 2017 and it comes with a transferable, 90 day parts and labor warranty. Service included some replaced electronic parts, replaced keyboard pads, thorough cleaning and re-calibration. HISTORY: I bought it new in 1981. I used it on the road and in the studio. During that time the original pitch wheels that were made of plastic had cracked. I had replacement wheels made out of aluminum as seen in the photos. Nearly all of the case screws have been replaced because the originals rusted. I also removed the walnut end panels during its years on the road because I did not want to see them get scratched or damaged. The Serial Number is #0422. There are no MIDI retrofits or any other modifications done to this unit other than the service mentioned above.” 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

Prophet 600, Sequential Circuits @ 07 June 2018, Comments Off on Sequential Circuits Prophet 600

“This synth uses the same CEM 3340 VCOs you’ll find in the Prophet 5 Rev 3 and OBerheim OBXA/OB8.

First commercial synth with MIDI

Pro Serviced (May 2018) with fulll calibration, GliGli installation, and keybed service. Gligli brings it up to specs with most modern synths regarding midi clock/sysex support/overhauled lfo and envelope sections/fm capabilities, filter drive and way more. This is basically as close as you’ll get to a prophet 5 without spending 5-6 grand. It’s a nasty nasty sounding synth especially for the money. Everything works, but you might want to clean the keybeds a touch.

Pro serviced by Analog Synth Service May 2018.
Sequential Circuits Prophet 600 with Teensy/GliGli Update installed.
New membrane panel also recently installed.
This synth is in excellent working condition with all keys, buttons, switches and knobs working perfectly.
Cosmetically it has some wear on the wooden sides and also some minor scratches and tape residue. See pics for more details. ” Click here to visit listing on eBay

Prophet 2000, Sequential Circuits @ 31 May 2018, Comments Off on Sequential Circuits Prophet 2000

“Collection only.
Reluctant sale of my prophet 2000, but I hardly get chance to use it so it has to go to someone who will. Comes with SD card reader which was professionally installed. The card reader makes saving and loading 100% reliable instead of having to use unreliable floppy disks. Comes with a large collection of sounds on the sd card. Loads of 808’s, linn drums, pads, keys, guitars etc.

This prophet 2000 is in beautiful cosmetic condition and works perfectly and has a great sound.” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 31 May 2018, Comments Off on Sequential Circuits Pro One

“I’m selling my pro one – Rev 1.2, which has the more desirable j-wire keyboard.

It’s in excellent condition and it has lived in a smoke free studio for the last decade.

I also have a prophet 5 which is my main synth and I just don’t use the pro one enough to justify keeping it.

It’s been kept in immaculate condition and the keys have recently had all the bushings replaced. It has just come back from a service where it passed with flying colours and it’s in perfect working order. ” Click here to visit listing on eBay

Prophet 600, Sequential Circuits @ 31 May 2018, Comments Off on Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 analog synthesizer.
All keys work.
New on-board battery” Click here to visit listing on eBay

Sequential Circuits, Split Eight @ 31 May 2018, Comments Off on Sequential Circuits Split Eight

“Acquired with a lot of other audio equipment, has been tested and works. Minimal wear and very gingerly used.” Click here to visit listing on eBay

Prophet 5, Sequential Circuits @ 31 May 2018, Comments Off on Sequential Circuits Prophet 5

” Item is in EXCELLENT CONDITION!” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 31 May 2018, Comments Off on Sequential Circuits Pro One

“The mighty sequential circuits pro one.This thing is so awesome hate to sell it!!! It has been fully reconditioned. Perfectly functioning, sound amazing and plays like a dream. The keys are smooth & even and have brand new Rubber. The circuit has been gone through with a fine tooth comb everything cleaned & deoxidized.No scratchy pots or switches. The panels have been gently oiled with Lem-oil and returned to their beautiful original glory.

Only issues the bottom has some scratches of no consequence(see pic# 6). And the right side wood panel has a blemish & couple of knicks (See pic 5). Here’s your chance to own a fine specimen of this classic synthesizer.” Click here to visit listing on eBay

Pro One, Sequential Circuits @ 24 May 2018, Comments Off on Sequential Circuits Pro One

“FOR SALE: a Sequential Circuits Pro One analog synthesizer with professionally restored electronics and a brand new 2018 Techsmechs keyboard installed- no j-wires to clean and/or replace, no faulty membrane keyboard- this has a brand new, newly manufactured, modern replacement keyboard installed and it is purely awesome; this synth’s keyboard mechanism is better than that of any other Pro One currently on the market.” 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