MATRIXSYNTH: Kawai SX-210

Thursday, September 30, 2021

Kawai SX-210



via this auction

Interesting problem with it - bad caps?

"This is an extremely rare synth that tends to sell in the $2,000 ballpark. Absolutely crazy warm fat analog sounds. When I bought this two of the voices didn't work. I took it to an electronic tech who spent 40+ hours completely going through the unit. All of the voices have been repaired with exceedingly difficult to find chips and a bunch of bad traces were fixed. After getting the synth fully functioning the tech noticed that after an hour or so a kind of static happens when you press the keys. He seemed to think the issue was with the power supply. At that point I was so deep into repairs and he had spent so much time on it that we mutually decided to hold off on any further repairs. I only use the synth for studio work and never play longer than an hour to track parts anyway so I never even had to deal with the static. I imagine a person could take this into a tech and get the power supply looked and solve this issue. It's just something I didn't want to pursue as it never really affected me. That being said I certainly can't ask $2,000 for it."

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