MATRIXSYNTH: Modded 1979 Yamaha SK-20 Symphonic Ensemble SN 9330

Monday, July 09, 2018

Modded 1979 Yamaha SK-20 Symphonic Ensemble SN 9330


via this auction

The listing doesn't state what the mods do. You can see a switch on the right for STH and ORG, clearly referencing the string synth vs. organ sections. On the back of the synth you can see added 1/4" jacks for ORG, STH, and IN. As there are already individual factory outputs for the Poly-Synth and Organ sections, I'm guess these three are all inputs. Curious if the jacks for STH and ORG replace them when plugged in, similar to overriding signals using patch bay.

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