“Up for sale, a 1980 Sequential Circuits Pro-One Model 100 monophonic analog synthesizer in exceptional condition and in perfect working order. Introduced in 1980, the Pro-One was designed to be a smaller, simpler version of its renowned elder, the Prophet-5. This well-kept first-year example has been professionally serviced, with all contacts cleaned and all functions operational. ” Click here to visit listing on eBay
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