Sequential Circuits Prophet 600 with Gligli mod, mid-1980s, with flight case is a used item in very good condition, listed on Reverb. The asking price is £1,557. It is offered by Thomas's Gear Emporium through Reverb. It is in our Synthesizers category. 25 similar listings have a median asking price of £1,354. Used Gear Hunter first saw this listing on 25 October 2026 and last saw it on 8 November 2026. It has been seen 8 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.

From the seller

Vintage 1986 Prophet 600 analogue polysynth. In really good condition considering it turned 40 this year. Has the Gligli mod firmware installed. Original firmware chip is included, taped inside the chassis. I bought it in 2016 and the Gligli mod and new pots were installed not long before then. Sounds incredible, in a different league from modern synths. Knobs, switches, and membrane pad all work well. Low F key is a little intermittent -- you can see it in the linked video. Might need a cleaning, but I haven't played the keyboard in quite a while, I usually used it with MIDI, so it may just need to be played a bit to be warmed up. RoadReady RRKB61W flight case included. Haven't been using it and need to downsize -- time for it to make bleeps and bloops for another person on its journey.

Sequential Circuits Prophet 600 with Gligli mod, mid-1980s, with flight case

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