Sequential Circuits Prophet 600 w/ GliGli upgrade

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We just got this beautiful Prophet 600 and will soon begin restoraton. It's in wonderful condition and will be serviced inside out. Also, we will fit it with the classic (and not available elsewhere) GliGli upgrade.

The Gligli upgrade for the Prophet-600 is a modern mod (firmware + CPU) that significantly improves how the synth works and sounds. It replaces the original Z80 CPU inside the Prophet-600 with a Teensy++ microcontroller and adds many new features and improves performance:

Higher Parameter Resolution - Sound parameters (like filter cutoff) become much smoother and more precise.

Improved Envelopes - Faster and smoother envelope generators (both amp and filter) with four modes: fast/slow × linear or exponential.

Better LFO - New LFO that goes much slower to very fast (~60 Hz), with more waveforms: sine, random-step, noise, saw, etc.

Dedicated Vibrato - You get a separate vibrato that can be controlled by the modulation wheel, or automatically triggered after a set time.

Unison Detune - More advanced unison mode: voices can detune, giving fatter sounds.

Mix Overdrive Oscillator outputs can drive VCAs and filter harder, resulting in grit or distortion / “drive” sounds.

Improved MIDI - Full MIDI In control of many parameters. You can change parameters via MIDI CCs. Better arpeggiator and sync options.

Better Tuning - New, improved tuning procedure. Keyboard Modes Several play modes: poly priority, unison, solo, etc.

Pitch Wheel Options - More control over what the pitch wheel does (range, behavior, assignment to filter or volume).

Price excluding VAT - please go to "Payment & delivery" section on the bottom of the page to check if VAT applies to you.