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"This is a Yamaha SY2 Analog Mono Synthesiser Keyboard.
It was the 2nd Synth which Yamaha produced in the early 70's.
It features 28 preset patches (see photo) which can modified with a ADSR (attack, decay, sustain & release) envelope, a low & high pass filter with low and high resonance controls, vibrato (speed & depth), pulse width (alters ration of pulse height to width), portamento, tone blend and pitch blend. Using these controls you can get a massive amount of different sounds.
The SY-2 also features aftertouch where vibrato, wah wah and volume can be altered by pressing the key with varying pressure. The sensitivity of aftertouch can also be altered.
There are also a foot controls where if you connect a foot controller (no included) you can alter volume and wah wah.
On the back it features 2 output connectors RCA phono and 1/4 inch audio with low and high level switch.
This is a fantastic synth that produces great analog sounds that would be great for the studio or live on stage. It is also a great chance to get one of these hard to find synths. It also featured in the film Close Encounters of the Third Kind!"
