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Sequential Circuits Pro One

“This Pro one is in nice cosmetic condition for it’s age,the top panel would be near perfect but for one blemish by the noise/ext knob.All lettering looks good, there is no static from the knobs,all keys trigger, the side boards have some dings and a small stain(they can easily be replaced w/ newly fashioned ones),the key action(not the signal)clatters kind of loudly(reliable speed is still good for me),though I’m unsure of what fix (cleaning,felt,rubber?)(How noisy are other Pro ones key actions?),I am sure of the cosmetic condition and the 100% sonic integrity,however I’m selling it as is(noisy key action, a quirk of a vintage synth?)” Click here to search for synths on eBay