SCI Prophet-600 with GliGli's firmware update

Published on Oct 22, 2015 Martin Ottesen

"This is a few sound examples from my Prophet-600 with GliGli's firmware update. With this update the synth is one incredible analog polysynth. For more info: https://gligli.github.io/p600fw/

https://www.nomatisan.com"

Sequential Circuits Prophet 600 w/GliGli & Extras SN 4298

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"Amazing condition late model (serial# 4200+) Sequential Circuits Prophet 600 w/GliGli CPU upgrade. Works perfect. Latest GliGli 2.1R3 firware. includes original Z80 CPU if you want to go back and a Calzone ATA transport case in which it will ship."

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Custom 'Black Prophet' Reverse Keys Sequential Circuits Prophet 600 SN 440

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"Prophet 600 customized 'Black Prophet':

- reverse keys

- Prophet 5 metal cap knobs

- now discontinued GliGli upgrade installed

- darker wood cheeks

- brand new original CEM3340 Rev G VCOs"

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Prophet-600 Analog Synthesizer Sounddesign Demo "Vielspiel"

Published on May 1, 2016 LANDOSONIC

"VIELSPIEL

A sounddesign experiment.
Unrivaled vintage fatness, as you can hear,
one could call it a quest for obesity.

Featuring the Dual-VCO analog polysynth "Prophet-600"
built by Sequential Circuits in the 1980's.

The unit I own contains the Gligli CPU/firmware upgrade.
That greatly enhances the sound and usability of this synth.

The DAW host "Ableton Live" was used to forward arpeggios to the P-600, capture the synth's output and also embellish those audio data with DAW FX and third-party plugins.

Composed and produced by Landosonic
in November 2015."

Sequential Circuits Prophet 600 SN 0228 J with Gligli Upgrade

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"Up for sale is our superb Sequential Circuits Prophet 600 analogue polysynth installed with the essential GliGli upgrade. This upgrade transforms the P600 into the great synth it always promised to be with superb filter and envelope response plus many additional features and improvements.

Featuring 12 analogue oscillators (2 per voice), analogue filter, poly mod section (also seen on the prophet 5), six voice unison, chord hold and arpeggiator. Packed full of the same classic CEM hardware that features in the Pro One and Prophet 5, this synth has a big, powerful and flexible sound."

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Sequential Circuits Prophet 600 with Original Case

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"Up for sale is our superb Sequential Circuits Prophet 600 analogue polysynth installed with the essential GliGli upgrade. This upgrade transforms the P600 into the great synth it always promised to be with superb filter and envelope response plus many additional features and improvements.

Featuring 12 analogue oscillators (2 per voice), analogue filter, poly mod section (also seen on the prophet 5), six voice unison, chord hold and arpeggiator. Packed full of the same classic CEM hardware that features in the Pro One and Prophet 5, this synth has a big, powerful and flexible sound."

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“Over the Rainbow” on Prophet 6 and Prophet 600 synthesizers - Sequential Circuits Dave Smith

Published on Mar 3, 2019 Tom Loncaric

"Music arranged and sounds programmed by Tom Loncaric. Performed live on 3/3/2019.

Equipment used:

2016 Sequential Dave Smith Instruments Prophet 6 synthesizer
1983 Sequential Circuits Prophet 600 synthesizer with GliGli upgrade
Moog Minifooger delay
Ashley mixer"

Sequential Circuits Prophet 600 with Gigli Upgrade

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via this auction

"Up for sale is our superb Sequential Circuits Prophet 600 analogue polysynth installed with the essential GliGli upgrade. This upgrade transforms the P600 into the great synth it always promised to be with superb filter and envelope response plus many additional features and improvements.

Featuring 12 analogue oscillators (2 per voice), analogue filter, poly mod section (also seen on the prophet 5), six voice unison, chord hold and arpeggiator. Packed full of the same classic CEM hardware that features in the Pro One and Prophet 5, this synth has a big, powerful and flexible sound."

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LIKE *NEW* Vintage SEQUENTIAL Prophet 600 w/ TEENSY CPU + Original Case SN 0352J

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"Unless you have means to go back and buy one brand new in 1982 you will have trouble finding one the same! It could easliy pass as new old stock.Take a look at the pictures!

Comes with it's original ultra rare, fitted Sequential flightcase, original footswitch, original patch cassette, an operation manual, the GliGli Upgrade manual and power lead! Also comes loaded up with all the original factory presets for you to get going!

Further to that this already great sounding twin VCO analogue synthesizer benefits from having the incredible GliGli/Teensy CPU and firmware upgrade installed. This has turned the Prophet 600 into a truly amazing polysynth...it easily competes with the Prophet 5 and in my view actually sounds nicer...I've always prefered them sonically even before the upgrade..but now this synth is on a whole new level! Super fast enevelopes, super high pot resolution(no stepping), full MIDI control..plus a whole host of new features and sonic possiblities!

Comes fully serviced and operationally perfect, no bad buttons or scratchy pots etc. Pots are all nice and tight and smooth..in keeping with a synth that has had very little use! So all ready to go!"

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Sequential Circuits Prophet 600 Analog Synthesizer w/ GliGli OS Upgrade SN 2447

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"The GliGli OS upgrade adds the following:
-Greater resolution of many of the sound parameters with an improved refresh rate
that is making the instrument much more responsive.
-Faster, smoother amplifier and filter envelope generators supporting four different
modes:
1. Fast Linear
2. Slow Linear
3. Fast Exponential
4. Slow Exponential
- A new LFO function generator with a wider range from one cycle every <20 data-blogger-escaped-seconds=""> to about 60Hz with four new waveforms in addition to the original triangle and square including sine, random stepped, noise (like on the original Prophet 5, but non- periodic) and sawtooth (ramp up)
-Multiple keyboard modes including:
1. Poly first note priority
2. Unison (all voice) Hi-key priority
3. Unison (all voice) Low-key priority
4. Solo (one voice) Hi-key priority
5. Solo (one voice) Low-key priority
-Mix Overdrive which now allows the output from both oscillators to drive the mix
VCAs A and B harder as well as the Curtis 4 pole filter resulting in new sonic
possibilities.
-Pitch Wheel interval selection of plus/minus one octave, a minor third and a fifth
-Pitch Wheel reassignment to the VCF and Volume or off
-Modulation wheel intensity setting from Maximum to Medium to Minimum
-Full Midi In control including:
1. Amp and Filter velocity sensitivity with an external keyboard controller
2. Continuous Controllers (CC) of all sound parameters
3. Program change (PC) to choose current preset
-A new and improved tuning procedure
-Chromatic and free Oscillator course pitch control
-Plus/Minus setting for Oscillator Fine Tune and Filter Envelope amount for Poly Mod
and Filter
-Assignable, Random And Up/Down Arpeggiator
-Debounce feature that prevents unintended retriggering caused by the old keyboard
Included in the listing is the Sequential Circuits Prophet 600 as pictured."

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SEQUENTIAL CIRCUITS PROPHET 600 ANALOG POLYPHONIC SYNTHESIZER w/ Gligli Upgrade

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"Everything works fine. Pad keys works without any problem.
No crackle whatsoever in any knob.

Gligli modification installed.
This takes Prophet 600 as close as possible to a Prophet 5
(A known reason why the prices getting higher and higher everyday)"

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Sequential Circuits Prophet 600 (Gligli Mod)

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Works and sounds great! Fully refurbished by Rosen Sound in Burbank, CA. It has the Gligli Mod which provides many upgrades to the original release. I'm going to miss this synth but I just bought a Dave Smith OB-6 and I need to sell this beauty to help pay for the other purchase. The right wood cheek has a small crack (see pics).

Among other things, the Gligli Mod provides for:
Increased resolution for sound parameters
Faster, smoother amplifier and filter envelope generators
New LFO function generator with a wider range
Dedicated vibrato
Unison detune
Mix Overdrive
Full Midi In control of parameters
Improved tuning procedure"

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Prophet-600

video upload by rimela

"Multitrack recording of the Sequential Circuits Prophet-600 (with GliGli update). All sounds are from the Prophet except drums."

Prophet-600 Sunlight on a Mountain Meadow

Published on Dec 18, 2018 LANDOSONIC

"A joyful Downtempo Chillout track, supposed to capture the essence of the mood in the picture. Created with a Gligli upgraded vintage analog synthesizer Prophet-600 by Sequential-Circuits and software plugins in Ableton Live. The Prophet in this case is responsible for the bassline and the treble analog stab notes.

Composed, recorded, mixed and mastered by Landosonic in December 2018."

Prophet 600 Synthesizer Vol. 2 GliGli Sound Demo Custom Patches - Sequential Circuits

Published on Jun 11, 2019 Tom Loncaric

"The Sequential Circuits Prophet 600 six-voice polyphonic synthesizer is incredibly versatile! This one was made in about 1983, and features the GliGli mod.

All sounds in the video were programmed by me and performed live, in the spirit of the big keyboard tones of the 1970’s and 1980’s."

Sequential Circuits Prophet 600 Analog Synthesizer with GliGli OS Upgrade

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"Recently serviced (and is working great!) and upgraded with the GliGli CPU upgrade. Which makes the prophet 600 so much more of a synth. No more stepped filter sweeps, nice and snappy envelopes , etc!"

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Sequential Circuits Prophet 600 w/ Gligli & Factory Presets

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"Fantastic prophet 600, new key contacts so perfect triggering for years to come. professionally serviced - midi, battery, Gligli installed with factory set, fully cleaned and reliable. Everything works as it should."

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Sequential Circuits Prophet 600 synthesizer GliGli - Big Brass - "Rocky"

Published on Oct 23, 2018 Tom Loncaric

"1983 Sequential Circuits Prophet 600 synthesizer with GliGli mod. Testing out some sounds... gonna fly now...."

Sequential Circuits Prophet 600 with GliGli update and Original Case

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"Sequential Circuits Prophet 600 with GliGli update and Original Case
Comes fully serviced incl 1year warranty. Invoice included."

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Prophet 600 Synthesizer - GliGli Sound Demo - Vintage and Old School patches - Sequential Circuits

Published on Feb 23, 2019 Tom Loncaric

"The Sequential Circuits Prophet 600 is incredibly versatile! This one was made in about 1983, and features the GliGli mod.

All sounds in the video were programmed by me and performed live, in the spirit of the big keyboard tones of the 1970’s and 1980’s.

Viewable in HD."