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Yamaha SY77

Music Workstation

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SY77 1
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Yamaha SY77
Yamaha SY77
450.00 street price

SY77 is a 61-note velocity sensitive keyboard with aftertouch featuring 32 voices of polyphony – 16 for AFM voices and 16 for AWM2 sampled voices.

The structure of the synthesizer is based on 6 operators representing AFM synth part which features 45 algorithms, 3 feedback loops and 16 waveforms. The sound generation is also represented with 16-bit AWM2 sample ROM waveforms.

The multi-stage Time Variant Filters with resonance were integrated. There is a 16-track sequencer with a 16 000 note capacity onboard as well as 4 independent digital effects processors. Memory offers 128 preset and 64 user patches, 16 preset and 16 user multi-patches.

The 6-operator AFM synth engine is similar to the one from DX instruments. AWM2 sounds can be combined with AFM sounds which allows for amazing creativity. 16 AFM and 16 AWM2 voices of polyphony give 32 voices.

The instrument was used by 808 State, Skinny Puppy, Brian Eno, Europe, Toto, Vangelis, Chick Corea, and Front 242.

Tags: digital synthesizer

Country of origin / production: Japan

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More info
Usage area
Multi Timbral Capacity16 part(s)
Tone Generator / Sound Synthesis
Synthesis Method Frequency Modulation (FM)
Advanced Frequency Modulation (AFM) 
RCM (Realtime Convolution and Modulation Synthesis) 
AWM2 (Advanced Wave Memory 2) 
Types of Oscillators45
FM Operators6
Oscillators per voice6
Waveform/ Spectral form (main generator): Waveform Count112
Waveform/ Spectral form (main generator): Waveform ROM4 Mb
Programs/ Voices/ Timbres
Single Voice Preset128
User-defined Single Voice64
Multitimbral Preset16
User-defined Multitimbral16
Master Effects2
Effects overall44
Tracks count16
Step Sequencer 
Sequencer Resolution96 ppqn
Note Capacity16000
Max number of songs1
Preset patterns99
MIDI in/ out
Type Synth Action
Velocity Sensitivity 
Number of Keys61
Display type TFT
Resolution: Horizontal240
Resolution: Vertical64
Built-in controllers
Assignable Wheel1
Pitch Bend Wheel 
Modulation Wheel 
Jog dial 
External controllers
Breath Controller 
Sustain foot pedal 
Expression foot pedal 
Foot Controller1
Audio out
Analogue: 1/4" (6.35mm)4
Analogue: 1/4" (6.35mm) headphones preamplified1
Computer Interfaces
Preset Memory Slot/ Wave Expansion Board2
Voltage 220V
Voltage 240V
Voltage 120V
Power Supply Built-in, internal
Power consumption28 W
Height119 mm
Width1046 mm
Depth407 mm
Weight17 kg
Case/ body
Production start1989
Production ended

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  • enpdf1.6Mb Yamaha SY77 MIDI Data Format
  • enpdf9.12Mb Yamaha SY77 Operating Manual