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Sequential Circuits Drumtraks

“Sequential Circuits Drumtraks

Fully working and just serviced. No crackly pots or double hitting buttons.

I have had this unit for over 20 years and it has been looked after in that time.

The unit comes with TR-909 and

TR-808 sound chips fitted. (see pictures for sounds on the chips)

The unit came like this when I purchased it and it sounds great.

I also have the original chips which will be supplied with the unit should

you want to change them back.

The OS chip (firmware ) has also been updated to version 0.5 The latest version.
I have kept the 0.4 chip which will also be supplied should you need it.

The unit has a few marks and scratches as you would expect for a very

old drum machine. Please take the time to look at the pictures closely as I

have done my best to show them in different lighting

I have a photo copied user manual and the new OS chip manual which ”
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Sequential Circuits Pro One

” Aficionados will recognise this as a relatively early example with the “J-wire” keyboard. Apparently this is easier to repair than the later version.

I have owned this for nearly 40 years and never gigged it. After a long period of non-use I was pleased to find that everything appears to be working, although the keyboard is quite “clicky” and I noticed occasional re-triggering or slurring of notes. So you can have fun with it right away but for serious work I would strongly recommend a service. Cosmetically it is fine apart from traces of marker pen applied by me for security purposes, back when iI was living in a dodgy part of town. See the photos for details. As you will see, all the knobs and switches are present and correct.”
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Sequential Circuits Pro One

“I have owned this for nearly 40 years and never gigged it. After a long period of non-use I was pleased to find that everything appears to be working, although the keyboard is quite “clicky” and I noticed occasional re-triggering or slurring of notes. So you can have fun with it right away but for serious work I would strongly recommend a service. Cosmetically it is fine apart from traces of marker pen applied by me for security purposes, back when iI was living in a dodgy part of town. See the photos for details. As you will see, all the knobs and switches are present and correct.” Click here to visit listing on eBay

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Sequential Circuits Prophet 2000

“For sell a wonderful Prophet 2000.

This one was used by the great Herbie Hancock for a concert in Rome in the late 1989!

(It was Signed by Mr.Hancock on the front panel…unfortunately a little faded after all over 30 years)

SERVICED by pro tecnician.

In great aestetics conditions

100% perfectly working.

Comes with its custom Flight case.” Click here to visit listing on eBay

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Sequential Circuits Pro One

“A used Musical Synthesiser that is in a great condition. The item is used and does have some wear and tear. The synthesiser has recently been fitted with a new plug and comes complete with the flight case and wooden stand sides. Every key does work.

The item is sold as seen. ” Click here to visit listing on eBay

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Sequential Circuits Model 800

“Sequential Circuits Model 800 Digital Sequencer cv gate 1vo Vintage Synthesizer. This Is very Rare and includes the almost impossible pedal as well. It has been a long time since i tried sequencing with this. I took years to find a pedal. I cant guarantee current operating condition so this is sold as is. Have sold the majority of my vintage analogue synths. This has been one of the coolest pieces of Sequential items as I had the majority of synths they made. This is sold as pictured as is. I carefully pack and ship my items. ”
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Sequential Circuits Six-Trak

” Really nice vintage six-voice polyphonic multitimbral synth with a lovely Sequential sound. One of the first ever MIDI-controllable synths and one of the first multitimbral synths too. It has a really neat onboard sequencer where each of the six sequencer tracks can be a different patch. It also lets you assign a different patch to each voice for a unique unison mode of six different patches stacked for every note. Really neat little synth; I’m only selling it because I’m out of studio space!” Click here to visit listing on eBay

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Sequential Circuits Expression Pedal Project Machine

“Sequential Circuits Co Foot Expression Volume Sustain Pedal VINTAGE SYNTH RARE!.

This is definitely a restores dream project. A vintage super rare expression pedal made by sequential circuits cool. See photos for details feel free to ask any questions it is untested ” Click here to visit listing on eBay

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Sequential Circuits Prophet 5 Rev 3.2

“Up for auction is a Sequential Circuits Prophet 5 – Rev 3.2 Analog Synthesizer, Original Model 1000 from San Jose, CA .

It is in great cosmetic shape, except for one or two scuffs on the backside of the synth and works 100%. It was last serviced approximately Ten years ago here in Los Angeles. The synth does need a new servicing, as there are a few scratchy pots when turning certain knobs as well as the occasion key, hence the lower starting bid price. I hate to get rid of this beauty of a Synth, but times have forced me to sell my favorite Synth sadly.

One of the first fully programmable polyphonic analog synths, the Prophet 5 is the most classic synthesizer of the eighties! It is capable of a delightful analog sound unique to Sequential’s Prophet series in which the P5 was King! Five voice polyphony – two oscillators per voice and a white noise generator. The analog filters, envelope and LFO all sound great and are extremely flexible. The P5 had patch memory storage as well, which scanned and memorized every knob setting for storing and recalling your sounds – a desperately needed feature at the time! If you know the power of this synth, then you know how amazing the sounds that can be made on this beauty.” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

” Bonjour à tous.
Je vends ce Prophet VS en très bon état (voir photo) avec une boite de transport sur mesure, le manuel et les schématiques d’époques en classeur (pas forcément facile à trouver).
Bien à vous.” Click here to visit listing on eBay

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Sequential Circuits Studio 440

“Sequential Circuits Studio 440 inc. Case.

Very good/as new, original condition.
As you can see from the pictures, the protective film is still on it.

Sampling-Rates:
15,635 kHz / 33.5 Sec – 41,667 kHz /12 Sec

Checked by technician. New rubber buttons. Potentiometers and buttons are new.
Everything is working fine.

It is best to pick it up.” Click here to visit listing on eBay

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Sequential Circuits Prophet 600

“This Prophet has recently been professionally serviced at Synapse Audio Systems; recapped as needed and fitted with a fresh storage battery, along with a thorough cleaning to ensure optimal function of all features. This Prophet is in great shape, with all original knobs that turn smoothly, pristine graphics, clean, brand new wooden end caps (originals also included), and clean, level key caps. Cosmetic wear is limited to a scant few tiny marks on the unit as a whole.” Click here to visit listing on eBay

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Sequential Circuits Six-Trak

“Sequential Circuits Six-Trak Analogue Synth -Works,but has issues.Synth is in very good condition.It has only been outside my studio twice(I moved)since the 80’s.It has the new OS ver 14.Let you just turn the Program knob to change patches..No more punching numbers.Plus a bunch of other cool MIDI stuff.I will also include the original ver 11 chip too. The unit plays great! You can program patches and save them.The only problems I see are if you use the arpeggiator the notes will play a note lower!??Sequencer will record,but also play a note lower on playback..And the stack a/b won’t do anything.I have 2 of these keyboards.I bought them at the same time in the 80’s.Never changed the batteries(40yrs)!They both are doing the same thing..So maybe the battery has something to do with it.Batteries on Amazon are like $25.Not saying that would fix it,but strange they both are doing the same thing at around the same time.Other than that,it works great. Its in really great shape also!Check out the pictures,Most of the original sounds are still in there.Including some great stacked bass sounds. I bought caps for the knobs that give it a Prophet 5 look.They look very cool in the light..You can take them off,not glued.Unit sounds great…It just needs some effects…They didn’t give you that stuff in the 80’s LOL .Thank you for looking!!!” Click here to visit listing on eBay

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Sequential Circuits Prophet 2000

“Sequential Circuits Prophet 2000 sampler
with original manual & memory expansion board fitted

******** Around 90% of my studio gear has to go ahead of moving into a smaller purpose built space, so 50 or so items to list over the next couple of days, mostly vintage synths, samplers and drum machines, plus a few effects and 500 series modules and more modern items etc. All top notch studio gems and rarities with the emphasis on what sounds good, rather than what costs a fortune. Some of this stuff you won’t see again any time soon, so keep checking back as I’ll literally be photographing and listing on repeat! ********

OK, the Prophet 2000. HUGE sounding machine, works great, was serviced in October 2021, invoice included, £160 spent. It has the full original manual file (these can sell for £100 on their own), and has the superb Synthechnics memory expansion board fitted, which is a modern reliable version of the old 2x one, doubles the onboard memory, and was another £100 or so.

UK power lead included, and the original manual is in excellent shape. A few marks and scratches here and there and a bit of old gaffer tape residue on a back corner, but no structural damage, all controls are fine, servicing included the floppy drive but no discs included, you might want to go down the floppy emulator route these days anyway (personally I was always happy with keeping it stock and just firing stuff in and out of the DAW).

Anyway, check Espen Kraft’s video or any other review to see what this thing is capable of adding in a modern studio setting. Literally only letting it go as I have a Mirage I’ve owned almost since new which I’m irrationally attached to, and only one vintage sampling keyboard can stay in my new slimmed down set-up. But it was a close call!

Collection in person only, might be able to meet up somewhere for handover but really prefer not to ship it, these heavy old metal cased keyboards are just not worth the risk.”
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Sequential Circuits Pro One

” For sale, Sequential Circuits Pro One. Everything works but some knobs could probably use a cleaning. Comes from a good owner with several nice features and improvements:

S/N 100-0028, 1981
Original Manual
Custom Road Case by Emperor Cabinets in Chicago
Dust Cover
MIDI add-on
J-Wire keyboard
Prophet 5 knobs instead of original knobs, quite snazzy
Attached power cable replaced with standard 3-prong “PC” adapter, will include cable

Due to the age it is being sold as-is.”
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Sequential Circuits Prophet 5 Rev 2

“Rare Sequential Circuits Prophet-5 rev. 2 (with the SSM chips) from the late 1970s / early 1980s – the classic, vintage analog polyphonic synthesizer.

This model is one of the most sought-after vintage analog poly synthesizers on the market, which sounds noticeably better / fatter than the later revisions.

Professionally gone through by tech in February 2020, who replaced power supply and a few components that were not working properly, and brought it back up to full specs. Tested everything, including full synth & voice operation, all buttons / switches / keys , cv/gate and tape save/load, etc. all working perfectly.

Everything works great on it and of course it sound absolutely and incredibly marvelous.”
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Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 with gligli upgrade in full working condition. Amazing sound and the v2022 gligli firmware update turns this 600 into a hefty Prophet 5 contender. More routing options, more LFO and lfo routung, Prophet 5 type envelopes, “rebounce” that prevents double triggering, more stability, better tuning and so much more! The overlay on the left side of the data membrane panel is for gligli 2.0 but will send a manual of the v2022 update that explains all the routing, operation and execution of all the v2022 functions… that said, most of the text on the 2.0 upgrade is still as it is stated. Anyway.. the sound is massive and classic, everything works as it should.. this is a rare chance to get a classic with some supreme updates!!!!” Click here to visit listing on eBay

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Sequential Circuits Pro One

” For sale, Sequential Circuits Pro One. Everything works but some knobs could probably use a cleaning. Comes from a good owner with several nice features and improvements:

S/N 100-0028, 1981
Original Manual
Custom Road Case by Emperor Cabinets in Chicago
Dust Cover
MIDI add-on
J-Wire keyboard
Prophet 5 knobs instead of original knobs, quite snazzy
Attached power cable replaced with standard 3-prong “PC” adapter, will include cable

Due to the age it is being sold as-is.” Click here to visit listing on eBay

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Sequential Circuits MAX

“1984 sequential max analog synth. 49 key. VINTAGE! Super clean!!! Incredible and unique synth. All original including manuals and power cord. Super clean!!!” Click here to visit listing on eBay

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Sequential Circuits Six-Trak

“For sale is a Sequential Circuits Six-Trak Polyphonic Analogue Synthesizer. It has 48 keys and is multitimbral, meaning it is capable of playing more than one sound simultaneously and capable of combining up to six sounds, creating complex sonic textures. The rear panel has a monophonic audio output, control footswitch jack, and midi in & midi out jacks. There are user manuals available online to explain the many functions. I am not exactly sure of the production year of this synth, but I believe it was made in the 80’s. In either case, the serial number is shown on one of the photos, so you can look it up online. The battery in this synth has long died. Therefore, I can verify some of the functions but not all and that is the reason I am selling it as is for parts. That said, I plugged it in and powered it up. There is a default sound, so I can verify that all 48 keys work. No broken keys. All Leds light up. You just cannot select any sounds until a new battery is installed and the original sounds are loaded back to the internal memory. The pitch wheel and modulation wheel work perfectly. The master tune and master volume knobs work perfectly. The audio output jack also works perfectly. There is a missing knob for the track volume. Other than that, the front panel looks clean. The right wood panel has a broken corner. A new battery could have this working like new again.” Click here to visit listing on eBay

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Sequential Circuits Prophet 10

“Prophet 10 dual keyboard. Model 1010. SN 1010-0421. Inherited from a relative who made studio music. This item has extremely low use and zero visible wear. Its exterior is truly ‘as new.’ There is virtually no wear, no nicks, no scratches that we have found. It powers up but we have not used it. I am told this is Rev 1 but I am not a Prophet expert. The SN should confirm for a knowledgable buyer. Includes original case (shown), peddles, cables, mini-cassettes (all pictured) and “Operation Manual” (not pictured).

Casters are removed but are included with their machine screws.

Cables and peddles in photos are included. The two mini cassettes included.”
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Sequential Circuits Pro One

“sequential circuits pro 1 Full Kenton MIDI Spec and new keyboard.

I’ve owned this unit for 14 years about and when I had Kenton fit the midi retrofit the engineer said it was in exceptional condition inside and out.

I have also fitted a new Techsmechs Fatar keyboard … I have a Nord stage 3 compact with waterfall keys and it’s a Nord and great to play but this has been said and it’s easily as good …

.. ~~~Nords are unquestionably top notch instruments, but several times I’ve seen the opinion expressed that the Fatar TP40 and TP100 keybeds feel better on other instruments than they do on Nords that have the same actions, and I tend to agree. ~~~🤷🏼‍♂️

So it has a Fatar keyboard and this is a dream to play ..like butter no more clickety clack keys and poor contact issues …

But I also have it’s original Keyboard boxed and is included.

The nobs have also been replaced with Techmechs … and there are no duff spots or crackles on the pots and it all tunes and lines up properly.

It also comes with the red swan flight case but being such a delicate item I would advise collecting or a very careful courier organised by you ! ” Click here to visit listing on eBay

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Sequential Circuits Prophet 5

” I have owned and loved this machine since 2015 when I purchased it in a specialist auction. I had Kenton add their midi retrofit to it which works perfectly. I have also had it serviced professionally in 2018.

If you are reading this then I assume you know how good these synths are. The rev 4 is good, but this is the original and there’s no beating that.

The synth is really beautiful looking with no blemishes or marks on the wood. It looks almost brand new. There is a small nick just above the logo, please see pictures. Importantly, there are no scratchy pots and the keyboard plays beautifully. It sounds stunning. Note that, although the digital display looks difficult to read in the photos, I think it just clocks slowly. It looks fine to human eyes!

Like all the earlier models, it does suffer from tuning issues and can take some time to settle down and tune well. It will take some time to warm up and may need to be auto-tuned several times. After it auto-tunes sometimes you still need to manually adjust the tuning pot for it to be spot on. I have also recently noticed that adjusting the cutoff can cause the tuning to go out if you have a lot of resonance dialled in. I spoke to my tech about this recently, and he suggested that it might need the pitch wheel replacing, so please bear in mind that it may need another service. It has also not had much use in the last 3 years hence the sale.”
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Sequential Circuits Pro One

“This listing is for one used original vintage Sequential Circuits Pro~One synthesizer. I bought this used in 2011, it had been previously stored in an attic for years. It has lived in my home studio ever since.

I had the oscillators tuned and power plug replaced by a professional. I replaced all key bushings and cleaned the J-wire myself. It is in excellent condition. Please scrutinize the pictures. Everything works flawlessly. The keys will double trigger, but that’s j-wires for you. Clean them and they work great until a spec of dust rests on one. ;-)”
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Sequential Circuits Pro One

” I bought this over 10 years ago – and it has been in storage. I have therefore had it serviced a few months ago to ensure it functions properly.

I can’t really grasp the concept of envelope generators and oscillators etc to make good use of this machine – I much prefer the pre-sets which I have a plenty on the Korgs, Roland and Alesis keyboards in my arsenal. So rather than put the machine back into storage, I have decided to sell it – hopefully to someone who understands analogue synths and can put it to optimum use. ” Click here to visit listing on eBay

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Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 with GliGli 2.10 OS in very good condition. Comes with SKB keyboard case and original users manual. All knobs, switches and membrane buttons work properly. Original presets installed. Cosmetically has some oxidization on back of the control panel, minor dings and scratches. ”
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Sequential Circuits Six-Trak

“Sequential Circuits Six-Trak Polyphonic 48-Key Keyboard / Synthesizer.

Unit powers on, everything appears to work as it should. The button for stack b Is missing.

No stock keys, a very clean/functional machine with those amazing retro tones.

There are scratches and oxidized areas, as referenced in the pics. Unit is sold as-is, with no warranty.”
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Sequential Circuits Prophet 5 Rev 3.3

“Vintage Prophet 5 Rev 3.3 Flawless.

This is a beautifully preserved vintage Prophet 5 from a collector (me). It’s likely the best Prophet you’ll find available. It’s been in storage for two decades and will need a checkup for calibration etc. I’m including a brand new midi kit for installation from Kenton, which is IMO the best midi kit available. It’s working fine, however some of the key contacts will need cleaning, and at the same time it will need the usual maintenance such a new battery, calibration, etc.” Click here to visit listing on eBay

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Sequential Circuits Pro One

“Early 80s Sequential Circuits PRO 1 Analog Synthesizer + Manual.

I’ve had this synth for about 5 years and I just don’t get enough use out of it anymore.

It’s due a service as several of the pots crackle and need a clean.

It’s also fitted with the less desirable membrane key board which needs upgrading (anyone that’s familiar with Pro Ones will know exactly what I mean). For this reason a few of the keys no longer work. However, if you are planing on using this synth via CV, like many people do, this doesn’t present any problems.

The service that needs doing is reflected in the price that I am asking.

Apart from the above it works exactly as it should. It’s also in fairly good aesthetic condition for a synth of its age (please see pictures).

I did consider servicing it and relaying the keyboard myself, however I have neither the time nor the desire to do so. ” Click here to visit listing on eBay

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Sequential Circuits Six-Trak

“Sequential Circuits Six-Trak Synthesiser.

body is in great condition but the wooden ends have been scratched
they were new but suffered a fall but I think a little creative sanding could sort it out…
Synth works perfectly as it fell during a service..!” Click here to visit listing on eBay