Sequential Circuits Prophet 600

“The synth has recently serviced with new battery, numeric membrane panel, and recapped power supply and voice card. Excellent working condition and only a few marks as shown. It has the GliGli upgrade and also have kept the original chip just in case you want to swap it back. The synth has been factory reset with the original patches loaded.

I did have a Prophet 5 before this and can’t really tell the difference to be frank. As some of you may already know the P 600 was the first synth to have Midi installed. Hats off Dave Smith. This is one of the most underrated synths ever! Maybe done purposely?! ” Click here to visit listing on eBay

Sequential Circuits Prophet 600

” Sequential Circuits – Prophet 600 synthesiser with brand new Gligli Update.

The Prophet has just had a service and MOT from Andy at Synthprof (I shall include the receipt £360 in the sale) and is future-proofed for your peace of mind.

Comes in new custom hardcase. Synth is fully working and is in unbelievable condition with only tiny blemishes, to be honest it looks like it just left the factory.

The pictures should say it all…What a thing to find one in this condition, Gligli firmware updated, serviced and future-proofed by Synthprof.” Click here to visit listing on eBay

Sequential Circuits Prophet 600

“This is the mac-daddy of Prophet 600s. This 1982 beast not only has the GliGli CPU upgrade, it has the coveted voice panning, stereo mod (which allows you to pan the 6 voices along the stereo field, like an Oberheim OB-8) and the instrument now has stereo outs in addition to the original mono output….in addition, this prophet 600 has a new fatar keybed installed (the same keybed that is in the high end Dave Smith and Moog Boards). Simply the best Prophet 600 you will ever see for sale. includes original Prophet 600 manual.” Click here to visit listing on eBay

Sequential Circuits Prophet 600

“This is the mac-daddy of Prophet 600s. This 1982 beast not only has the GliGli CPU upgrade, it has the coveted voice panning, stereo mod (which allows you to pan the 6 voices along the stereo field, like an Oberheim OB-8) and the instrument now has stereo outs in addition to the original mono output….in addition, this prophet 600 has a new fatar keybed installed (the same keybed that is in the high end Dave Smith and Moog Boards). Simply the best Prophet 600 you will ever see for sale. includes original Prophet 600 manual.” Click here to visit listing on eBay

Sequential Circuits Prophet 600

“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

Sequential Circuits Prophet 600

“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.”
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Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 – with Gligli Mod, and original CPU. Condition is “Used”. Shipped with UPS Ground.
This synth sounds great, exactly like the 80s!
There is some wear on the keyboard, to be expected from an instrument from 1982, but ive had no issues with its reliability.
I had this keyboard serviced in late 2018, and recently had the keybed re-painted with magnetic contact paint, making sure that all keys consistently fire, making this guy a fantastic performer!” Click here to visit listing on eBay

Sequential Circuits Prophet 600

” Sequential Circuits Prophet 600 – with Gligli Mod, and original CPU. Condition is “Used”. Shipped with UPS Ground.
This synth sounds great, exactly like the 80s!
There is some wear on the keyboard, to be expected from an instrument from 1982, but ive had no issues with its reliability.
I had this keyboard serviced in late 2018, and recently had the keybed re-painted with magnetic contact paint, making sure that all keys consistently fire, making this guy a fantastic performer!” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“Sequential Circuits Prophet-600 polyphonic synthesizer

Looks 8.75 of 10
Some scratches discovered but in clean condition. please see pictures.

Works 10 of 10
Everything works as specified, overhauled before shipping to have long life and to keep original sounds.

Work list:
Change all elec. caps, tant caps and poly caps with new ones.
Change all power regulators and rectifier diodes with new ones
DAC adjustment
Change all buffer Opamps and multiplexors with new ones
Keys, knobs, switches and jacks cleaning.

gligli firmware 2.00 installed
factory 100 sound data installed

Voltage changed to 120 or 220-240V for free on buyer’s request.” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 GliGli modded 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. ” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“10/15/20. My tech just went through and check all functions. Battery is good and shows 3V.

This is a rare Sequential Circuits Prophet 600 OS version 2.9 (uploaded Video showing power up can be seen in my tristarmusicgear Instagram page) in 100% working condition with the must-have GliGli Mod, which truly takes the synth to the next level, putting it alongside the Prophet 5 as one of the greatest analog polysynths ever.

The previous owner painted the wood side panels black, which in my opinion gives it a sleeker and more refined look. See for yourself in the photos. If you prefer brown wood, there are a few people selling Prophet 600 wood side panels online. Few dents on the membrane panel.

The synth was fully cleaned and serviced by a synth professional when acquired from previous owner. There are a few small scratches and dings as you can see in the photos, and a few knobs have fading paint, as you might expect from a synth that is almost 40 years old. All buttons, knobs, and switches work as expected (make sure to read the GliGli manual at https://gligli.github.io/p600fw/), and the sound is unbelievable.” Click here to search for synths on eBay

Sequential Circuits Prophet 600

” Sequential Circuits Prophet 600 Analog Keyboard Synthesizer, manufactured in the early 1980s. Condition is used. Shipped with UPS Ground in included Road Ready flight case (slight crack in case – purely cosmetic! – see attached photos).

This keyboard is in excellent condition! Plays beautifully, extremely fun to program. Historic, early MIDI compatible synth. No real cosmetic damage; all original knobs, wheels and sliders.

This analog gem has been in my studio since 2008 – I am a retired studio engineer and theatrical sound designer. Has been used for a great deal of studio production as well as live shows over the years. I am only selling because I am no longer working in sound; it’s been a much-loved piece of gear and I hope to pass it on to someone who appreciates it as much as I have!” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 synthesizer.
I have listed this item for parts not working but the synthesizer does work but is in rough / medium cosmetic condition. Electrically it seems to work fine but I cant say for sure all the functions work as it has never been serviced by a tech in the brief time Ive owned it.
here is what I do know.
all keys work and produce sound. synth tunes up and after warm up stays in tune.
touch pad looks rough but all buttons work. there are about 10 presets stored that play.
you can make your own presets and they will store in memory for recall.
that is about the extent I have worked with it. I am a novice player and do not know all the synths functions or capabilities. hence why its being sold as is for parts not working.” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“SCi Prophet-600 programmable polyphonic synthesizer

Looks 9.5 of 10

In very clean condition,. Please see pictures.

Works 10 of 10
Everything works as specified, overhauled before shipping to have long life and to keep original sounds.
Change all electrolytic capacitors and some short life transistors, opamps and logis ICs with new ones,
and keys knobs, sliders, switches and jacks cleaning before shipping.” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“SCi Prophet-600 programmable polyphonic synthesizer

Looks 9.25 of 10

Some minor scratches discovered but looke younger than its age. Please see pictures.

Works 10 of 10
Everything works as specified, overhauled before shipping to have long life and to keep original sounds.
Change all electrolytic capacitors and some short life transistors, opamps and logis ICs with new ones,
and keys knobs, sliders, switches and jacks cleaning before shipping.” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600 Keyboard Synthesizer. Condition is Used. Square wave on one of the oscillators is a bit finicky. Wiggling the switch for the wave shape usually does the trick, but I suspect pots need to be cleaned. I’ve lowered the price because of this. No other issues with the synthesizer. Comes with power cable, hard case from previous owner, and foot pedal. ” Click here to search for synths on eBay

Sequential Circuits Prophet 600

“Sequential Circuits Prophet 600, in excellent condition.
This synthesizer is in excellent condition, though it does show some tiny signs of age.
It is fully working, have been cleaned and refurbished.
All the knobs have been cleaned and lubricated.
The keyboard has been rebuilt, every keys are working correctly without double triggering.
The unit has been calibrated following the factory specifications.”
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Sequential Circuits Prophet 600

“SEQUENTIAL CIRCUITS PROPHET 600 SYNTHESIZER.

Condition is Used. Works well but…………………SOMETIMES…………

Does have an intermittent fault on some start ups, the Synth goes into edit mode at times, this clears after 5/6 re-starts, maybe in need of a service.

The Synth was gigged regularly throughout the 80’s and early 90’s but has not been gigged since 1993. Only used occasionally at home.

No updates or modifications have been applied.

It was serviced by “Synth Repair Services in Stoke -on -Trent on 26th Nov 2012. (Copy of Invoice in Photos)

All the keys work, as does all the Knobs and Pitch Wheels.

It comes with the operation manual, the condition of this is well used., I do not have the original tape to upload the original patches.

There is a flight case that was made for the synth, which comes with it.

The condition is well used, with cosmetic damage..See photos. ” Click here to search for synths on eBay