Sequential Circuits

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Sequential Circuits Prophet VS

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““Perfect working condition, studio environment only.Some scratches on surface, but display and joystick working fine.Buttons all working, needs to be pushed a bit harder than buttons assembled today, but then again, not sure if they were much smoother brand new.Extra external RAM-cartridge included!Joystick and slider replaced for full working condition.”” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

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“Sequential Circuits Prophet VS, Rare ’80s Vintage Digital Vector Synth
Additional 4 Cartridges
Clean example. Very minor wear. Sounds amazing.
Ships with power cable.
See photos for full description.
Rare and COOL!” Click here to visit listing on eBay

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Sequential Circuits Pro One

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“This SCI Pro One is in excellent condition. It’s fully functional and sounds great. It was recently serviced and is ready to go. All keys trigger properly, pots are clean and switches all working. This is the more desirable J-wire keyboard version. This is a classic awesome sounding mono-synth. Also included is the MTG Turbo Kit (not installed). If you would like our techs to install it we can do that for actual cost, estimated 2-3 week turnaround. Estimated installation cost $300 but this is just an estimate. Message us if interested in having the MTG Turbo kit installed. ” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

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“Perfect working condition, studio environment only.Some scratches on surface, but display and joystick working fine.Buttons all working, needs to be pushed a bit harder than buttons assembled today, but then again, not sure if they were much smoother brand new.Extra external RAM-cartridge included!Joystick and slider replaced for full working condition.” Click here to visit listing on eBay

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Sequential Circuits Six-Trak

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“This vintage Six Trak is fully functional and has recently been serviced. Notice the light marks on the end cheeks and bottom. The pots and buttons have been cleaned, it has been tuned, and the power chord has been replaced. This Six Trak is in good condition, and it sounds and operates as it should! ” Click here to visit listing on eBay

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Sequential Circuits Prophet 2002

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“Sequential Circuits Prophet 2002 sampler with analog filters, good shape, has assorted wear and scratches (see pics), but operates fine. Has had the floppy drive replaced with a gotek usb drive floppy drive emulator, and includes a usb stick loaded with samples. Has 4.3b os, 246k memory, originally was 128k but I added an expansion board. Comes with an original copy of the manual that includes two sample floppies. Also included is a selection of replacement chips: one cem3379 vcf/vca, one I-624 custom voice ic, and one 256 ram chip. Two of the original knobs have been replaced with P600 style knobs, as I could never locate any of the correct ones, and the rack ears have the edges broken off, but still work fine.” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

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“Sequential Circuits Prophet VS, Rare ’80s Vintage Digital Vector Synth
Additional 4 Cartridges
Clean example. Very minor wear. Sounds amazing.
Ships with power cable.
See photos for full description.
Rare and COOL!” Click here to visit listing on eBay

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Sequential Circuits Prophet 5

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“Sequential Prophet 5 rev 4 Polyphonic Analog Synth Amazing Shape In Original Pkg. Condition is “Used”.

This is an amazing synth that unfortunately I never use. I am more partial to sequencing and looping. I am not a keyboard player. ” Click here to visit listing on eBay

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Sequential Circuits Prophet 5

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“This one is in beautiful cosmetic condition and working 100%. It has just been serviced and has had a lot of restoration. As the title says, this is a Rev 3.3 with 120 programs and factory midi. It is easily one of the cleanest here on Ebay (if not the cleanest).” Click here to visit listing on eBay

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Sequential Circuits Pro One

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“Legendary analogue synthesizer from 1981. Without a shadow of doubt the most powerful mono synth ever produced. This thing is completely devastating for bass, but also excels at leads, drones, percussive sounds and all kinds of other complete madness. A truly wild and amazing instrument. The real deal – none of this modern clone/reproduction business.

This one has the much more desirable J-Wire keyboard – and is serial number 6732. A bit of research online will reveal that this is what you want – the first couple of thousand has problems with the internal power supply and the ones after 8000 had the badly designed membrane keyboard. The synth was serviced a couple pf years ago and is working flawlessly (I can provide the service invoice). The synth is in immaculate condition cosmetically. Wooden end cheeks are in really nice condition. All in all for a 40 year old unit this is a really incredible example. An amazing and inspiring instrument but also a solid investment, the price of these things is rising all the time these days.” Click here to visit listing on eBay

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Sequential Circuits Prophet 600

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“Sequential Prophet-600 Analog Polyphonic Synthesizer.

Condition is “Used”.

Working Sequential Circuits Prophet-600 analog polyphonic synthesizer.
-Cosmetics pretty good for a nearly-40 year-old keyboard (see the pics).
-Control membrane switch panel fully working
-all pots & switches working appropriately
-recent battery change
-power supply electrolytic capacitors replaced in last 5 years
-all tantalum capacitors replaced with electrolytic capacitors
-new electrolytic capacitors in VCF circuits
-basic midi in & out functionality verified
-control foot switch verified

I played it, going through the patches and all sounds appropriate. All the keys trigger fine for my playing but there were a few that slightly double-triggered (very infrequent on most keys with most patches).” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

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“Sequential Circuits Prophet VS, Rare ’80s Vintage Digital Vector Synth
Additional 4 Cartridges
Clean example. Very minor wear. Sounds amazing.
Ships with power cable.
See photos for full description.” Click here to visit listing on eBay

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Sequential Circuits Pro One

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“This listing is for 1 x Sequential Circuits Pro One Analog Synthesizer & Original Box (actual item in images).

The unit works as it should and is in excellent condition (please see images).

All pots have been cleaned and all switches/buttons work.

All key contacts cleaned. It has the more desirable J-wire version keyboard.

The original box is showing its age but is intact.” Click here to visit listing on eBay

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Sequential Circuits Poly Sequencer

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“Very rare sequencer , only 500 were made. For use with the Prophet 5 synthesizer that has been fitted with the digital and analog ports ( rev. 3.2 or 3.3 ) the sequencer uses the digital port only. Recording can be in real time or step time. Real time is extremely straightforward , but step time needs a bit of thought before programming , the manual is a good help in this regard and is available as a free online download. The unit plays and records well , although i am not sure about recording onto the cassette . The cassette deck works and plays the tape, but i have never tried recording onto it ( a mini data cassette is included ) I am assuming that it may well work , but do not buy if this is important to you as i cannot guarantee this ( it is not important to me , as simple sequences only take a few seconds to load in ) The cosmetic condition is very good . The black paintwork has been touched up in one or two places , but on the whole is fine. The 6 screws on the casing would look better with new replacements ( for a few pence ) The wooden end cheeks could do with re-staining or replacing , one has a bit of damage to the wood finish. There are several companies that will make up replacements for a reasonable price ( bespoke custom made end cheeks would look nice )” Click here to visit listing on eBay

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Sequential Circuits Drumtraks

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“Please be fully aware. . This unit is being sold with the following 4 description statements ONLY. . .

1/ This unit does NOT work, and is sold for parts, or for someone to repair or get the unit repaired.

2/ This is a complete unit (all original parts, case never been opened since I’ve had it). The physical condition as shown in the photos.
Please study the pictures. . .You can see there are some chips and marks along the front top edge, and odd sratches and marks about the thing in general, which one would expect from a Drum Machine from 1983/84. I’ve had the unit since 1990 and have never opened it, so all the parts are there. The unit worked for me and I used it from 1990 to 1993 in my home and it was taken out once to gig. I used it again for 6 months in 2001. Since then and up untill testing it on 02/04/2021 it was kept in a cardboard box under a bed in my home.

3/ ( the unit was tested 03/04/2021, with the following findings :- )
The unit powers up, meaning the LED display and some LEDs come on, when unit switched on.

4/ ( the unit was tested 03/04/2021, with the following findings :- )

There is no sound coming out of any of the outputs.

The rest of the swithes, contolls, inputs, outputs, including MIDI in and out, were not tested, (could not be tested as no sound comes out).
The unit was left on for a whole day with no changes to what worked and what did not work.”
Click here to visit listing on eBay

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Sequential Circuits Prophet 5

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“One of the last remaining Sequential Circuit Prophet 5 Keyboards in the Rev 2 version left in working order in the world available for sale.

Purchased from Chicago 10 years ago then spent 2 years refurbishing and now sounds outstanding.”
Click here to visit listing on eBay

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Sequential Circuits Six-Trak

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“RARE Sequential Circuits Six-Trak synth synthesizer keyboard analog. Condition is “Used”.

DOES NOT STAY IN TUNE…jumps in and out of tune over time..
Not perfect, has scratches and scuffs in various spots…see pics.”
Click here to visit listing on eBay

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Sequential Circuits Pro One

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“I replaced the cord and fired it up. Appears like all the knobs and switches are working. Both the wheels work. The pots all need to be cleaned up, they are scratchy. Switches too. Keyboard needs to be disassembled and restored. I have had it since the late 90’s. When I put away for storage everything worked. If I had the time I would restore it myself…..” Click here to visit listing on eBay

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Sequential Circuits Prophet 5 Rev 3.3

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“Sequential Circuits Prophet 5 Rev 3.3 for sale.

120 Program Memory. No MIDI. Very clean excellent condition. Just got back from full service, calibration and future proofing done by the excellent experienced tech at patch work electronics NYC.

PSU completely rebuilt and future proofed.

All polarized (tantalum and electrolytic) capacitors replaced.

All bridge diodes and voltage regulators replaced.

All Controls cleaned.

CPU to panel PCB connectors resoldered.

Bad LED on the VCO2 key follow switch replaced.

Output section rebuilt.

Mux/demux ICs replaced on CPU and voice boards.

Power distro bus on the voice board repaired.

LM311 comparator replaced.

Keybed rebushed, key contacts/bus bar cleaned and adjusted.

Voices fully serviced.

Battery replaced and factory presets reloaded.

Full calibration and full function check after all repairs were completed.”

Click here to visit listing on eBay

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Sequential Circuits Pro One

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“Sequential Circuits Pro One Synthesizer Powers On *no Sound*. Condition is “Used”.

It powers on, but there is no sound. Knobs do work because there is static when they are turned. Maybe just needs a good cleaning and the keys to be serviced” Click here to visit listing on eBay

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Sequential Circuits Prophet VS

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“Sequential Circuits Prophet VS rack – RARE!

– New OLED Display
– New data slider
– minor hum from transformer, typical and does not effect sound
– RAM data cartridge”
Click here to visit listing on eBay

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Sequential Circuits Pro One

by

“Legendary analogue synthesizer from 1981. Without a shadow of doubt the most powerful mono synth ever produced. This thing is completely devastating for bass, but also excels at leads, drones, percussive sounds and all kinds of other complete madness. A truly wild and amazing instrument. The real deal – none of this modern clone/reproduction business.

This one has the much more desirable J-Wire keyboard – and is serial number 6732. A bit of research online will reveal that this is what you want – the first couple of thousand has problems with the internal power supply and the ones after 8000 had the badly designed membrane keyboard. The synth was serviced a couple pf years ago and is working flawlessly (I can provide the service invoice). The synth is in immaculate condition cosmetically. Wooden end cheeks are in really nice condition. All in all for a 40 year old unit this is a really incredible example. An amazing and inspiring instrument but also a solid investment, the price of these things is rising all the time these days.” Click here to visit listing on eBay

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Sequential Circuits Pro One

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“Sequential Circuits Pro One Vintage Analog Mono Synthesizer. For parts or repair: it makes noise, but not sure why it’s not fully working. Maybe you can fix it! Cosmetically perfect.”
Click here to visit listing on eBay

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Sequential Circuits Prophet 600

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“Keyboard Synthesizer. Condition is Used.
Includes power cable and original OS chip

professionally gligli modded
All switches, knob, keys work, and were recelty cleaned and properly lubricated and feel great.
Audio out is clean and strong. Has lower noisefloor than a bunch of modern gear.
Small ding in one wooden ear but othwrwise in great cosmetic condition.
All 6 voices work and keep tune. All membrane buttons are responsive. And the LED js bright and clear for its age.
Everything appears to work as it should and patches sound great.
Overall great condition.
I have never had any issues but due to age and being modded it is sold as is. All sales are final.”
Click here to visit listing on eBay

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Sequential Prophet VS Rack

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“Ultra Rare Sequential Circuits Prophet VS rack. Mint. Serviced with OLED.
Curtis analogue filters, sample import via Midi Sample Dump Standard for creating custom waveforms from Jupiter 8, OBXa, etc, 4 oscillators, superb sounding unit. Comes with original user manual, also Mint. Voltage can be selected between 110v and 240v
Second owner, originally owned by a legendary Australian band.” Click here to visit listing on eBay

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Sequential Circuits Pro One

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“This listing is for 1 x Sequential Circuits Pro One Analog Synthesizer & Original Box (actual item in images).

The unit works as it should and is in excellent condition (please see images).

All pots have been cleaned and all switches/buttons work.

All key contacts cleaned.” Click here to visit listing on eBay

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Sequential Circuits Pro-One

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“Sequential Circuits Pro-One synthesiser. I’ve own this Beautiful instrument for over 10 years and I bought it from the original owner. Plays lovely and is a real classic, whoever wins will own a beautiful synth.”
Click here to visit listing on eBay