“Yamaha SY22 Dynamic Vector Synthesizer Keyboard w/ box, power supply.
Yamaha SY22 with rare Stage Selection expansion card. Keyboard uses vector synthesis. Has no filter but to honest. I didn’t miss it because the way you can blend sounds. Surprisingly has more unique waveform then I expected. Especially with the expansion card. YouTube videos don’t donit justice. A lot more going on under the then people show.
The bad: Output left & right does not work but, the phone output does with any problems. No static or crackle.” Click here to visit listing on eBay