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"This is a very nice analog Korg FK-1 with the FK-4 control pedal, very few signs of use. Very rare find.. Works nice with all kinds of sound sources like synths, guitar, organ etc. Quite different than the standard a Moog filter. This is early Korg and predates the MS20, MS10 range, I think it's from the same era as the 700, 770, 800DV etc. Great build quality. Everything works like it should and it is ready to play... I'll throw in a DIN/Midi cable to connect the pedal to the filter too."