Prophet 600

“Don’t ask what is wrong with this item. 🙂 LOL

It is not too good to be true…My family is simply selling at a lower price than it is worth because we need the money and need to downsize…

This is in perfect working condition. Cosmetically, as you will see, it is really good for being over 40 years old!

Recently, it was opened up, cleaned out, including every contact. Built like a tank.

All keys work perfectly, and all knobs as well.

The is amazing what sounds can be created with this thing.

Anyway…

** It Comes with the Power Cord, and will be packed safely.” Click here to visit listing on eBay

“Fully functioning and restored – Sequential Circuits Prophet 600 Synthesizer Vintage Restored not Prophet 5. I am not a musician or a keyboard player. History of this instrument as I know it…This synthesizer has spent its life in a padded hard case. It was given to me by a co-worker back in 2013. He purchased it from Goodwill online. (However owned it prior to that took exceptional care of it.

The unit was not working and I held on to it since then. I decided last year in March to have it repaired. It would light up but not boot to program mode. I sent the unit to one of the absolute best technicians possible for this type of instruments. The unit was sent to David Sesnak of Wine Country Productions in San Jose, California. He could not believe how great the condition of this unit was cosmetically. All repairs he made totaled $746. I had him install the GliGli update as well.

The wood sides are original. I’ve included the invoice of work performed. I could not bring myself to discard a vinatge piece of music history so I am offering for someone to enjoy for years to come. Buy pays actual shipping costs. Package is 31lbs and dimensions are 51L x 25 W x 8 H. Unit will be professionally packaged.” Click here to visit listing on eBay

“SEQUENTIAL CIRCUITS PROPHET-600 Synthesizer. Gigli Upgraded.

Good condition. Wear and tear on left wood panel as pictured.

Works perfect. Has GliGli modification.

Comes with synthesizer, original manual, and original shipping box.”
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” Sequential Circuits Inc Prophet-600 Us” Click here to visit listing on eBay

“Selling a vintage Prophet-600 that needs some work. It starts up and plays to some extent but has damage to the membrane keypad (a brand new one is included for you to install) and the LED has the typical dim segment problem. The original side panels (included) were damaged so nice new ones were made. Don’t have the time for this project, but it could be a great finished keyboard with some work.

The red button was added by a previous owner to fix a problem with a broken button on the membrane keypad. Once the keypad is replaced, you could remove or disconnect it.

The synth is otherwise stock and does not have the gligli or any other mods.” Click here to visit listing on eBay

“I am selling my beloved and well regarded Sequential Circuits Prophet 600 with GliGli upgrade.

The Prophet 600 is a wonderful and rich sounding 2 vco vintage polyphonic synthesizer packed full of features and tricks.

This particular unit is in fantastic condition and features a full set of P5 knob caps. The synth is in great service and works exactly as it should, it is a joy to play. The original CPU will be included in the sale should you wish to swap out the GliGli.

The only minor thing worth mentioning about this unit is that some of the silkscreening around the filter has rubbed away over the years, please see photos for more detail, other than that, the synth is in near mint condition.

I am only selling to upgrade to a modern rev4 prophet 5 as I could use the split keyboard for live shows to greater affect than the 600. ” Click here to visit listing on eBay

“SCi Prophet-600 programmable polyphonic synthesizer

Looks 9.5 of 10
In very clean condition. Please see pictures carefully.

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

Work list (Excerpt) :

Change all elec. caps with new ones.
Change all power regulator with new ones.
Change all opamps and MUX ICs next to DAC with new ones.” Click here to visit listing on eBay

“SEQUENTIAL CIRCUITS PROPHET-600 Synthesizer. Analog. AS-IS.

Selling a vintage Prophet-600 that needs some work. It starts up and plays to some extent but has damage to the membrane keypad (a brand new one is included for you to install) and the LED has the typical dim segment problem. The original side panels (included) were damaged so nice new ones were made. Don’t have the time for this project, but it could be a great finished keyboard with some work.

Included:
Keyboard
New membrane keypad
Original wood side panels
Power cord

Local pickup (Seattle area) available. I will refund any overcharge from the shipping estimate. Thanks for bidding!” Click here to visit listing on eBay

“SEQUENTIAL CIRCUITS PROPHET-600 Synthesizer in excellent condition. ” Click here to visit listing on eBay

“SEQUENTIAL CIRCUITS PROPHET-600 Synthesizer. Gigli Upgrade.. Few minor blemishes, fully working. Includes power cable.” Click here to visit listing on eBay

“I am the original owner. Bought it in 1985. Last year did a full service including new keyboard contacts, full cleaning, new membrane, gigli install. Performs “as new” with zero noise from any knob. Overall very good condition with only minor scratches on side wood panels (see pics). Synth is located in Seattle and Will ship double boxed. Unique chance to get a true analog gem.” Click here to visit listing on eBay

“Selling a vintage 1980’s sequential circuits prophet 600 synth. This synthesizer is in great cosmetic condition and functions well but does have a few issues and will be sold as is for parts or repair. One of the voice chips seems to be dead and the lcd screen has about half the pixels out. Easy repairs for the right person. Includes the original power cord, and a gig bag/carry bag for it. “ Click here to visit listing on eBay

“Sequential Circuits Profit 600 Synth Synthesizer Keyboard Super Clean For Fix, this is a one owner purchased directly from their estate sale they hadn’t plugged it in in over 30 years or more and rarely used it to begin with ,it’s definitely near mint with one tiny nick on the end wood cap Upon powering up the unit goest into tune and then program lights just as it should . I was unable to get any sound after about 5 minutes of troubleshooting so I’m selling for fix . I know people like to get the mods on these so I figure I would just let the new owner get it going , don’t miss this super clean unit, sold as is for repair only , no returns!” Click here to visit listing on eBay

“Just serviced by reputable Bay Area Synth specialist. Has GliGli firmware ” Click here to visit listing on eBay

“Sequential Circuits Prophet 600 For Parts or Repair Rare Japanese Memory Mod.

Includes synthesizer, hard case with aluminum trim, original Japanese documentation on modification.

This came from japan, not sure what work this needs, if any. Untested. It has been modified with some custom Japanese circuit dated 1987. I think the circuit added a hundred or 2 memory slots for voice recall during live performance. (Like ymo) That’s all I can really say.

I think this is the mod

“Ver.6E3.1にアップグレードすることで、プリセット・メモリーが2倍になりMIDIチャンネルの指定ができるようになります。

また、音源にノイズが追加されます。

費用は26,250円です。ご購入と同時なら改造費は10%OFFです。

or

pre-set it by upgrading it with Ver.6E3.1, and memory doubles and comes to be able to appoint the MIDI channel.

In addition, a noise is added to a sound source.

The expense is 26,250 yen. The remodeling costs are 10%OFF if simultaneous with the purchase.”

So the mod cost 26k yen at some time it seems.

It is in beautiful condition cosmetically.” Click here to visit listing on eBay

” SEQUENTIAL CIRCUITS PROPHET 600 :

* UNTESTED

* needs cleaning & service = had a rough life

* SOLD AS IS – NO RETURNS” Click here to visit listing on eBay

“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 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 :

* UNTESTED

* needs cleaning & service = had a rough life

* SOLD AS IS – NO RETURNS” Click here to visit listing on eBay

“Beautiful condition. Fully serviced by Tim at Audio Synapse in Portland. New TechsMechs keybed installed. Gligli modded. Custom solid black walnut side panels installed – Originals also included. An absolutely killer vintage synth. The new keybed is amazing and a HUGE upgrade.” Click here to visit listing on eBay

“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

“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. Condition is “Used Has GliGli firmware ”

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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

“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

“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. ” Click here to visit listing on eBay

“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

“We are located in Japan.For electrical products, check the manufacturer and product and convert to the voltage of each country.” Click here to visit listing on eBay

” 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