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Yamaha SY-20

(image courtesy of Yamaha)

Released: 1982

MSRP: Y161,000


Last analog synth (only released in Japan). Architecture Class: Conventional (subtractive).

Ebay Description:

The Yamaha SY-20 is a 44 key (aftertouch sensitive), monophonic analog synthesizer, featuring 20 presets, portamento, LFO, resonant low or band pass filter, dedicated filter and amplifier (ADSR) envelopes, and a speaker.


Form Factor Dimensions Weight Audio Input Audio Output Communication Port Control Input Control Output Switch Input Power
44 keys W:777mm D:326mm H:101.6mm 11kg no mono no no no no AC


Compatibility Multitimbral Memory Program Memory External Storage External Programming UI Input UI Output
- N/A preset:20 no no dedicated sliders/knobs LED


Multitimbral Polyphony Unison Architecture
no 1 no VCO->VCF->VCA


Effects Pan Modulator Volume Modulator Headphone
no no aftertouch LFO VCA-EG yes


Arpeggiator Arpeggiator External Sequencer Sequencer Memory Sequencer External Continuous Program Change
no N/A no N/A N/A pitch-wheel mod-wheel no


Key Pressure Chord Memory External Control External Sustain Key Scaling Velocity Curves
yes no no no no no


Name Signal Class Waveform Octave Range Amplitude Modulator Harmonics Modulator Pitch Modulator Wave Assign Modulator
VCO analog saw pulse noise 2-32' no no LFO pitch-wheel Portamento no


Name Signal Class IC Resonant Shape Frequency Modulator Resonance Modulator Shape Modulator
VCF analog IG00156 yes low and high pass aftertouch LFO VCF-EG no no


Name Level Rate Loop Polarity Trigger Level Modulator Rate Modulator
VCF-EG sustain attack decay release no no key no no
VCA-EG sustain attack decay release no no key no no


Name Waveform Delay Polarity Sync Delay Modulator Level Modulator Rate Modulator
LFO triangle? no no no no aftertouch mod-wheel no
Conventional Models
SY-1 SY-2 CS-10 CS-30 CS-30L CS-50 CS-60 CS-80
CS-5 CS-15 CS-15D CS-20M CS-40M CS-70M CS-01 SK10
SK15 SK20 SK30 SK50D SY-20 AN1x