“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
” 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
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
“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
“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
“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
“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 Prophet 600 out of a smoke-free studio. Just came back from the shop and it’s in fantastic cosmetic and working condition! Everything works great. Only noticeable issue is the numeric keypad makes a sticking sounds when you press the buttons, but they function fine. Battery was just replaced. Original owner, never toured. Probably about as close to new as you can get. Includes power cable and original box.” Link
“This synthesizer is in good used condition, with some scuffs and scratches from previous use. This unit was tested and seems to be working well, but not every single function was tested. The power cable is included. There is some chipping to the wooden body (see detailed photos).” Link
The P600 has two oscillators per voice with sawtooth, triangle and variable pulse waveforms. The oscillators can be individually tuned or synced together. Similar quality VCF and VCA sections from the Prophet 5 can be found here too! The P5’s Poly-Mod section has also been passed onto the P600.
The P600 is extremely versatile and easy to use! Its best functions include the onboard arpeggiator, 2-track sequencer and poly-modulation. The P600 is great for creating analog effects, swells and drones. It has a cool glide effect and has very flexible modulation possibilities.” Link
” This Prophet 600 is in super condition and has recently had a $600 full service performed by the excellent technicians at Switched On, Austin TX. Sounds amazing, plus it has the TEENSY Modification done.
You wont find a better example of this synth anywhere, for its age it is sublime.
Also comes with a professional Clydesdale shipping case.” Link
– Original wood ends have been lightly sanded and finished.
– I will include the original IC with the factory firmware
– Keybed is in pretty good shape, the keyboard bushings were replaced a year ago.” Link
” Unit in excellent shape. Plays well hardly no scratches on it. Bought it new in 1983.
Has two minor issues with it as you can see in the invoice worth of over $900 worth of work done on it. The number two on the key pad is not working at the moment so any program with a two in it will not come up. All the other programs plays fine. It also comes with a gator gig bag that it fits in.
Serial # 4631″ Link
PROPHET 600 by Sequential Circuits
Original MIDI synthesizer.
Very special synth….
All the keys work. All the oscillators, switches and pots are functional and original. Display functions, front panel button overlay super clean. There is minor damage to one wooden side and one key (middle G) has a small chip missing from the underside (see in picture). Has never been in a smoking studio.” Link
“This Prophet 600 is in super condition and has recently had a $600 full service performed by the excellent technicians at Switched On, Austin TX. Sounds amazing, plus it has the TEENSY Modification done.
You wont find a better example of this synth anywhere, for its age it is sublime.
Also comes with a professional Clydesdale shipping case.
Will ship immediately upon receiving payment.” Link
“Keypad is functional, but is slightly raised and damaged. Has some cosmetic scuffs and scratches. Sold as-is, as pictured. Includes no additional accessories beyond what is pictured.”
“Here is a beautiful and fully operational example of a Sequential Circuits Prophet 600.
This unit has been meticulously serviced and upgraded to bring it to it’s absolute fullest potential.
All of the insides have been perfectly calibrated and tuned. All tantalum capacitors have been changed with high quality electrolytic, a common flaw in all sequential gear. All controls have been cleaned and the membrane pad works perfectly. The keybed, another common ailment of prophet 600’s, has been serviced to ensure it will not loose notes.
The unit features 2 upgrades:
Brand new custom made wood sides
GliGLi CPU modification, which is the mod that makes these prophets scream as loud as it’s older the brother, the prophet 5.” Link
“Sequential Prophet 600 with gligli near mint. Here I’m selling a very good cosmetic condition Prophet 600 including the gligli upgrade. It’s fully working with no issues and looks nearly mint. Sounds amazing. box is already sold so only synth now
its the us verions so comes with small converter” Link
Fantastic synthesizer which I have owned, used and loved for 5 years. Was recently serviced by an internationally respected synth repairman with a new membrane, repaired ‘B’ oscillator, new knobs for a couple that were missing, new wood plates, etc. My favorite of the synths I’ve owned, but it’s time for me to pass it on to new hands.
Comes with a flight case. $200 already taken care of, so it’ll stay in your wallet!
Buy with confidence! Item sold AS IS!” Link
“Great condition, all ports working, and was recently cleaned and factory patches were restored.” Link
I have loved using this synth over the years. Just finished a score with this Prophet all over it. Always inspiring. I hate to let it go but you will love it.
If you are like me you’ll dive into this deep synth and not come up for air for awhile.” Link
“Excellent condition Prophet 600! Recently serviced and fully functional. Sounds amazing! Includes gligli upgrade, and original manual. Will also include original OS chip, in case you want to revert to stock OS. ” Link
The unit turns on but does not seem to produce any sound as being tested. The display shows up fine, most of the buttons appear to be responding except for #2, TO TAPE, FROM TAPE, TUNE, SEQ 1, SEQ 2 and ARPEG UP-DN buttons not responding when pressed.
So I’m selling this AS IS to be used with some servicing done, or for parts.
Cosmetically the unit is in reasonably nice condition as you can see. There are some wear and scuff marks here and there with some smudge on the keys as pictured, I’m including plenty of pictures so you can see exactly how it looks.
Comes in Original SCI Prophet-600 Hard Case as shown.” Link
“Powers on, and working but, has many dead keys, missing wooden side panels, broken cutoff knob, needs tuning, dead battery and the lower right segment of the first digit on the led display not illuminating (see pictures).” Link
“Up for Sale is a Sequential Circuits Prophet 600 synthesizer from 1982 in perfect working condition. This Synth was just fully serviced by Perfect Circuit Audio in Burbank, California and everything is in 100% working order. All key contacts were repaired, pots cleaned, etc… This is the Dave Smith analog original!” Link
” This Prophet 600 sat unused in a dust and smoke free environment for the last 10 years. I’ve been the primary owner for 17 years now. It was just fully serviced by the world renowned Analog Lab in Queens NY. They also upgraded the synth with the Teensy++ board loaded with the Gligli CPU/firmware remake. Everything has been cleaned and calibrated to perfection. The only flaw is a small chip in the wood panel which you can see in the pictures. ” Link
“Here we have a great! 9/10 condition SCI Prophet 600. This was kept in my closet for about 5 years untouched. I recently took it out, cleaned the key contacts and checked the battery and all works perfect!. This is really a great example of the 600. Functionally great as well as cosmetically. Its not a 10/10 because of some scratches to the side wood panels, please see picture. Comes with a heavy duty Calzone style case, manual, and power cord.” Link
“Other than the notorious problem of the membrane LED display panel having seemingly random display issues — in this case the upper-left element displaying too bright (when a number that uses it is present – see pictures) — the membrane panel functions just fine, we’ll call this 9/10 functionality. And as for cosmetics, other than a couple small blemishes (see pictures), we’ll call this 9/10 cosmetically. See all pictures, this keyboard is a gem. I have had it stored in the included padded gig bag since about 2002. I just tested all functionality on (March 12, 2016) and it is in top working condition (other than the membrane display issue you can see from the pictures).” Link
“Just took this keyboard out of storage with the intention of selling it. It powers up and all of the keys function but the presets don’t seem to change the tones. The filter section seems to work along with the sequencer and arpeggiator. There is some cosmetic damage to the wood panels as shown in the pictures. I’m sure this keyboard will need some refurbishing to get it up to 100% but I don’t feel like messing with it, so here’s your chance to get a prophet 600 at a good price. Included in the auction is a power cable, original box and factor preset cassette. ” Link
“Perfect working P600 with flight case included. Currently loaded with original patches. Excellent working condition must sell due to moving. Flight case is anvil style. With options for the new gligli update the skies the limit with this synth!” Link
“I have for sale a Sequential Circuits Prophet 600 Vintage Polyphonic Synthesizer (c.1984). I purchased the item from a now defunct studio in Birmingham. I purchased a new switch pad from LA Synth and it was fitted here in England by James Walker of Synth Repair Services in Stoke-on-Trent. The item has also been checked throughly and the calibration reset.
The synthesizer is in excellent condition with no visible marks or scuffs.” Link
“Near mint almost mint prophet 600 with Gli Gli CPU upgrade. You won’t find a nicer one.” Link
Small ding in the membrane near the panel readout. The membrane is 100% functional. It was just serviced and given a perfect bill of health – new voice chip on #6, intermittent socket repaired, all key contacts painted.” Link
“If you are looking at this Unit you know what it is!!! This is a Prophet 600 w midi in/out – cassette in/out – footswitch – Filter CV In – & Audio out (Standard Plug). I purchased this 20- 25+ years ago as a Demo Unit. More as a Toy than anything. I even had the Cassette with it…It was Sold Years Ago. This unit has been used very little. Has Mainly sit covered or boxed in spare bedroom(Non Smoking Home). Plugged it in today…Works Great- Lots of Fun and a Really Serious Instrument. When I was younger this and the 5 Model were King! And Expensive. I actually put this in a Yard sale years ago, and it did not sell.(Someone missed a great buy!) I still have the Original Box and Packing that it came in! I have the Original Manual Somewhere boxed up…still looking for it. If I find it you will get it, if not I am including a CD with Both Sequential Circuits Operation and Technical Manuals on it. This Should Cover Everything!!” Link
“Selling my Prophet 600. Its in great condition, I just has the synth serviced and re-furbed at Analog Hut in LIC. Comes with the manual and power cord. There are a few minor imperfections on the bottom frame and in a few spots, all superficial. Works great. All original wood panels and frame.” Link