A monophonic analog synthesizer
with a 37-note keyboard
. Released around 1973
*, being Yamaha's first keyboard synth not counting the GX-1 prototype
The SY-1 offers a single VCO
high- and low-pass VCF
s, one VCA
plus an LFO
. Other features include a slide effect
and limited pressure
sensitivity (wired to the VCF) on the keyboard.
28 preset instruments
are included, with no real programmability available. The user does have some limited
control over the presets though: the low-pass filter's
cut-off and resonance are adjustable, as well as the LFO's rate
. The VCA offers sliders for the simple AR envelope generator.
* All of my sources claim a different year. Anyone with solid information, /msg me!
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