model500 “Sequential circuits Pro FX Model 500. A very early Digital Analog hybrid effects unit specifically made for your CV analog / modular Synth. This is a quality machine. Very few of these were made. Extremely rare. It’s in excellent cosmetic condition. No dings, dents or serious cosmetic wear at all. The face is in beautiful shape. There’s light scuffs on the top edge and a light blemish on the back as seen in photos. Lightly used and very well cared for!

It powers up and passes a signal but the effects aren’t working as they should. All LEDs and lights work. All buttons and knobs are in great shape and trigger the digital LED / appropriate lights perfectly but as for any 40-year-old vintage analog gear, this will need to be serviced and is being sold AS IS. If you have any questions, please feel free to ask. This will be packed with extreme care and shipped immediately upon payment received.” Link

usedproone “This is as close to a cosmetically mint Pro One that I have seen. I have owned this synth for 7 years. It came with the J-wire board which is great. However I mostly sequenced it with a hardware sequencer. I just spent $300 to have it fully gone through at Perfect Circuit Audio here in Los Angeles. It sounds dreamy. I am selling in order to buy a OB-6. I’ll miss this synth but I need a poly. ” Link

pro_one “Sequential Circuits Pro One [analog synthesizer]
[j-wire model, serial #7764]
(serviced by Wine Country Sequential)
(works perfectly, excellent condition)
(with orig. power cord intact)
Includes:
*orig. manual
*WCS service invoice
*(1) extra pitch wheel
*(1) extra mod wheel) ” Link

p600 “This item listed is a Prophet 600 Sequential Circuits synthesizer. This item works perfectly. I used this in my personal studio and it sounds amazing.” Link

pt8 “This here is rare and amazing synth. Prophet T8 in GREAT condition!!! 9/10. This synth has after touch, midi, 8 oscillators (opposed to the P5’s 5 oscillators)… The ability to stack patches makes this synth a gnarly Prophet 5 on crack.!!! it also can come up with some very interesting sounds of its own. Down fall is that it’s huge, and old, you wouldn’t want to gig with this. It is a studio synth. Kept in a smoke free studio. Dope, Rare synth. Local pick up welcome! And I will ship. ” Link

dt “Classic Drum machine from the 80s.

Can Be Synced via midi

Separate outs all working.

240v U.K. Plug type as seen in pic 3

Please note everything is working except, the clap button is stuck in(see pic 2) and doesn’t trigger via the pad! still functions via midi though. Not sure how easy this is to fix hence the cheaper price to others listed on eBay.” Link

sci_pro_one_syntth
Location: Barnet, North London
Asking price is £1790 as these rarely come up for sale, open to sensible offers.
Pay on collection, you can collect or delivery is free in the U.K. can ship overseas on cleared funds at cost to the buyer.

Lovely and well cared for example of the Pro-One synth. Bought this over 12 years ago from well know synth supplier RL MUSIC (look them up on google) and it’s recently been serviced and inspected by their team at KSR in London.

I don’t use this much anymore, fully digital these days, so would like to give it to a good home, it’s had studio use only and in excellent condition, the wood panels look great with some small marks to them but overall this synth looks fantastic and more importantly sounds fantastic.

I’m quite sure I have the original manual in storage which I will locate for the buyer but cannot promise I’ll find it.

This synth is also a great investment piece and will only increase in value over time.

Thank you” Link

p2k “Water damaged Prophet 2000 sampler.

Keyboard has top C broken.

Extent of damage unknown, but would be useful for parts etc., or a restoration project.

Sound generation is digital (Sampler), but the envelopes, amplifiers and filter are all analogue.

Contains 8 x CEM3379 chips

History of this particular synth is unknown, it came to me last year.

Clearing out the workshop in preperation for a move hence the sale.” Link

p_600 ” Selling the Prophet 600. Couple of surface problems, shown in pics… the wooden box on the side is missing a small wedge from the top, the 16th key from the left is chipped, the 13th black key has a nick, and some of the metal on the back has surface scratches in the paint. I think all of that is is pictured. I do not have the original power cord.
Otherwise, it appears to work perfectly. All the buttons and switches seem to be in place and sturdy. It sounds great, and has a board of numbers and ancient symbols for you deciphering enjoyment.
It is an ‘as is’ purchase, and shipping is on you.” Link

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

pro_one “Sequential Circuits Pro One [analog synthesizer]
[j-wire model, serial #7764]
(serviced by Wine Country Sequential)
(works perfectly, excellent condition)
(with orig. power cord intact)
Includes:
*orig. manual
*WCS service invoice
*(1) extra pitch wheel
*(1) extra mod wheel)” Link

p600 “SCI Sequential Circuits Prophet 600 6 Voice Analog 61 Key Synthesizer (1983)
Clean, Guaranteed Fully Functional.

Auction includes everything in photos:

SCI Sequential Circuits Prophet 600 6 Voice Analog 61 Key Synthesizer
Clean Road Runner 61 key soft, black felt lined keyboard bag
Standard 6ft 3 prong power cable

Second owner, gently used, home studio use only. Contact board professionally cleaned, new battery, all internal boards nice and clean. Cosmetically, some wear on the top edge, right wood cheek like broken in jeans, some light scratches on rear. Warm, every key fires cleanly. Sounds EXCELLENT! Synth will be shipped & packed respectfully.” Link

model800
But getting to my personal opinion on this sequencer.. The real magic behind this thing is the capability to move around from sequence to sequence in a gorgeously intuitive manner. You have 16 banks of up to 16 notes, and you can disengage or engage any you like, at any point in time. When the previous bank is done playing it will jump to the next logical place. It sounds simple but there really are NO other sequencers that do this. On the 800 you can set your sequencer flows and forget it. It just keeps playing all of the sequences one after another in a long cycle. Have an urge to remove one? Flip a switch. Next time around it’ll skip it. You can also make it function like typical step sequencer by loading only one or two notes per bank, and then you can use the whole set of 16 banks treated as one note each to make a short short sequence as a single musical phrase. But having the ability of loading up to 16 notes per bank means it performs both like these step sequencers and like a series sequencer such as on a Roland JX3P and other Rolands. The flexibility and musical performance improvisation in this single device is still unparalleled to this day. Needless to say there are a lot of possibilities with this unit. 16 notes x 16 banks equals 256 total note sequence, with beautiful live variability.

I also have included a custom cable for external clocking. The clocking works perfectly and is rock solid tight like other professional cv/gate sequencers.

The unit has a collapsable stand as well, allowing for propping up the face to be above a synth if you place this unit behind a synth on a table. It also allows for cabling to be tucked underneath.

Included are physical copies of all of the manuals and schematics, as well as pdf copies of all too.

The only thing to be aware of operationally is that it needs to warm up for 20 minutes or so before pitch is perfectly consistent at all times. It powers up immediately and operates fully but for the first bit of usage it can go off pitch seemingly randomly. But after it’s been warmed up it runs perfectly. Besides, maybe this really doesn’t change your sessions because you’ll want to leave this unit on a lot anyways since it’s the old school volatile memory type of sequencer. I was in touch with the tech who fully restored this and we decided the pitch thing after startup was a temperature issue and that once the circuits are settled in temperature the pitch is solid. As you can tell from the video, this is the case. Absolutely perfect, as is the timing. So just turn it on ahed of time and you’re set. Or just leave it on. If you need further evidence of stability, i suppose i can make a long long video showing it playing for an hour straight haha. ” Link

Prophet 600, Sequential Circuits @ 30 March 2017, Comments Off on Sequential Circuts Prophet 600

p660 “Unit powers on but requires a new keypad control panel membrane as well as new keys/contacts. Some keys do not trigger/ do not immediately trigger but some work. Knobs and switches appear to be functional. Includes power supply + original manual. Sold as is/no returns.” Link

Pro One, Sequential Circuits @ 30 March 2017, Comments Off on Sequential Circuits Pro One

sci pro _one “This is an original Pro One with a 37-note J-wire style keyboard. I have installed new Pratt & Read rubber bushings for the keys, and have kept this synth stored in my closet for the past 12 years. I also recapped the power supply and reflowed all the solder joints when I acquired the keyboard for my personal home studio. The previous owner drilled two holes in the case (see photos) for reasons I never understood. It never really bothered me, but could be a perfect location for MIDI in/out should you choose to go down that path.

I have just tested all keys, knobs, switches and both pitch wheels with my headphones, and all work great! Also included are the original operating and technical manuals. Both have been written in (original owner again), but are otherwise in fine shape.” Link

Sequential Circuits, Studio 440 @ 30 March 2017, Comments Off on Sequential Circuits Studio 440

440 “Legendärer und sehr seltener Sampler, Sequencer, Synchronizer von Sequential Circuits!

In sehr gutem Zustand. Das Gerät funktioniert einwandfrei. Alle Kontakte wurden gereinigt.

Lediglich die 8 Gummipads müssen erneuert werden, da das Gummi sich altersbedingt auflöst. Gumipads kann man bei der Firma Winecountry bestellen oder man steuert die Pads extern via Midi an.

Auf dem Gerät läuft die letzte Softwareversion Studio 440 Plus from Pointsource aus dem Jahr 1987. Das Gerät wurde 1986 beim Synthesizerstudio Bonn erworben. Es stammt aus erster Hand und steht seit 25 Jahren im Tonstudio.

Mit dabei sind sämtliche Bedienungsanleitungen und ca.100 Sounddisketten inclusive der Werkssound Disketten vom Hersteller.

Legendary and very rare Sampler from Sequential Circuits in very good condition. Only the pads have to be replaced. The rubber is too old. With Manuals and about 100 3,5 Floppy Sound Discs.” Link

Prophet T8, Sequential Circuits @ 30 March 2017, Comments Off on Sequential Circuits Prophet T8

prophet t8 “For sale, a Sequential Circuits Prophet T8 synthesizer. This synth is a beast! If you are considering this, I’m sure you are aware of its capabilities. The only issue I’ve found with it is there are times when a voice, or voices, cut out randomly in a wave-like or LFO fashion where certain keys will not play, but it’s not always the same key. After a couple seconds, the non-playing key will start playing and a different key will become inactive. All of the keys function properly when put in Unison mode. I’ve taken a video to show this behavior that I can send if requested. ”
Link

Pro One, Sequential Circuits @ 30 March 2017, Comments Off on Sequential Circuits Pro One

sci_pro_one “Sequential Circuits Pro One [analog synthesizer]
[j-wire model, serial #7764]
(serviced by Wine Country Sequential)
(works perfectly, excellent condition)
(with orig. power cord intact)
Includes:
*orig. manual
*WCS service invoice
*(1) extra pitch wheel
*(1) extra mod wheel)”
Link

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

mt “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.” Link

Prophet 600, Sequential Circuits @ 23 March 2017, Comments Off on Sequential Circuits Prophet 600

sciprophet600 “A stunning relic, vintage analog synth Prophet 600—the first commerically available MIDI synth, currently used by James Holden. Includes a fantastic hard case and is in excellent cosmetic condition. Please see photos for further detail!” Link

Prophet 2000, Sequential Circuits @ 23 March 2017, Comments Off on Sequential Circuits Prophet 2000

p2k “Up for sale is a Sequential Prophet 2000 keyboard. It’s working but will not read any floppies. All keys work and presets/sounds play, you can sample and everything with the exception of saving to disk. It give the error ND every time with a brand new Sony disk. At this time, you can use the built and sounds as well as sample new ones and play them through the 8 analog fliters. It can also be used as a midi controller with advanced split and arpeggiater features. This is being sold as is with no returns.” Link

Prophet 600, Sequential Circuits @ 23 March 2017, Comments Off on Sequential Circuits Prophet 600

prophet600 “Awesome Prophet 600 Analog Synth in great condition. The wooden end panels are banged up but super easy to make or buy on ebay. The front panel looks near perfect. no scratches in the graphics at all. Its been tested fully functional as far as I can tell.All knobs and switches work great. the pitch wheel doesn’t return to zero I’m assuming it’s supposed to.but does not affect it’s function. comes with power cord and nothing else. This thing sounds incredible. the bottom on it is killer. it screams pure and simple.” 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

Drumtraks, Sequential Circuits @ 16 March 2017, Comments Off on Sequential Circuits Drumtraks

dt
Sequential Circuits Drumtraks

Fully working and in good condition

Taken from studio clearout ” Link

Prophet 2000, Sequential Circuits @ 16 March 2017, Comments Off on Sequential Circuits Prophet 2000

p2000 “Up for sale is a Sequential Circuits Prophet 2000 Keyboard. Keyboard is currently in non-working condition. It blows fuses when powered on. It does not come with any floppy discs. Message with any questions. Selling AS-IS as a project/parts. It does not currently create sound or power on. It’s worth fixing, as these are becoming harder and harder to find. This unit is Serial # 2000-00999”
Link

Pro One, Sequential Circuits @ 16 March 2017, Comments Off on Sequential Circuits Pro One

sci pro one “Excellent condition. J Wite edition. Recently professionally calibrated. All knobs, keys, switches work perfectly. Selling with the Kenton Pro Solo ii CV to MIDI converter. Due to the age of the instrument, it is being sold as is. ”
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

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

mt “For sale is my Sequential Circuits Multitrak. This is a rare classic vintage synthesizer and in my opinion very underrated, much better than the more readily found Sixtrak. It has a awesome analog sound along with a cool built in arpeggiator & sequencer. Awesome for pads but also gets very beefy in mono-stack mode. This might be the nicest Multitrak you will find. It’s in super MINTY shape, even the bottom is almost perfect. It has custom wood sides and looks and plays perfectly. Includes power supply. Be sure to check out the detailed pictures to make sure you like it. Don’t miss out on this awesome SCI synth! ” Link

Prophet 5, Sequential Circuits @ 16 March 2017, Comments Off on Sequential Circuits Prophet 5

p5 “This is a used Sequential circuits prophet 5 rev 3 (serial above) . I am the second owner of this synth , both owners kept in clean smoke free studio . Never gigged with . The synth is in excellent condition , especially consider its age . In great working order . Minor issues : missing one knob on source mix pot which is pictured , easily replaced . Other issue is one key will trigger twice at beginning of usage . However as you earn her up she sounds amazing and continues to get warner and warmer . This is a rare opportunity to own one of the most iconic synths ever created . Only thousands exist in the world. She has been very good to me and now its time to let her go to a new home for new creations .”
Link

Prophet 600, Sequential Circuits @ 16 March 2017, Comments Off on Sequential Circuits Prophet 600

p600 “Item: SEQUENTIAL Prophet-600 Ver .SIX E3.1 synth keyboard instrument .The first commercially available synth to implement MIDI!! It’s a fun synth. Polyphonic MIDI implementation and up to 100 memory patches. The P600 has two oscillators per voice with saw tooth, triangle and variable pulse waveforms. The oscillators can be individually tuned or synced together. Tested and working condition.
Condition: This is used and has some minor flaws/scratches/scuffs/chips. The right fork (a/b) spring came loose and needs to be reattached, missing tuner knob, and the middle white key has an underside chip. The right side wood panel has a small chip, which does not comprise the integrity of the system. It comes with the power cord.” 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

Prophet 2002, Sequential Circuits @ 09 March 2017, Comments Off on Sequential Circuits Prophet 2002

p2002 “Here is a Sequential Circuits 2002 rack mount sampler in good condition. Works and sounds awesome, this is a classic 12 bit sampler” Link

Prophet 5, Sequential Circuits @ 09 March 2017, Comments Off on Sequential Circuits Prophet 5 Rev 2

scu “No Shipping, Pickup Only, 5 Days At This Price, If You Can’t Arrange For Pickup Please Look Elsewhere

Sequential Circuits Prophet 5 Analog Synthesizer That I’ve Owned For 12 Years, Serviced Works Excellent.

Fat And Fuzzy, Warm With Great Attack , Killer Unison Mode, Wild Poly Modulation Effects

Rare Rev2 Version, Excellent Condition, Pickup Only NYC Area, No Shipping” Link