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Yamaha SY99

Music Workstation

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SY99 1SY99 2
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Yamaha SY99
Yamaha SY99
700.00 street price

SY99 brings a lot of upgrades to the SY77. The 76-note velocity sensitive keyboard with aftertouch features 32 voices including 16 AFM voices and 16 AWM2 sampler voices. The 6-operator AFM synth is the core of the structure. AWM2 sample ROM offers 267 waveforms.

The effects section is represented with two internal digital effects processors with 63 effects. Memory delivers 128 preset and 128 user patches, 16 preset and 16 user multi patches.

The multi-stage Time Variant Filters with resonance were integrated. 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 Vangelis and Chick Corea.

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 voice8
Waveform/ Spectral form (main generator): Waveform Count267
Waveform/ Spectral form (main generator): Waveform ROM8 Mb
Programs/ Voices/ Timbres
Single Voice Preset128
User-defined Single Voice64
Multitimbral Preset16
User-defined Multitimbral16
Master Effects2
Effects overall63
Sample Memory0.5 Mb
Tracks count16
Step Sequencer 
Sequencer Resolution96 ppqn
Note Capacity27000
Max number of songs10
Preset patterns99
MIDI in/ out
Type Synth Action
Velocity Sensitivity 
Number of Keys76
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)2
Analogue: 1/4" (6.35mm) headphones preamplified1
Computer Interfaces
Sampler Memory Slot1
Preset Memory Slot/ Wave Expansion Board2
Voltage 220V
Voltage 240V
Voltage 120V
Power Supply Built-in, internal
Power consumption35 W
Height120 mm
Width1254 mm
Depth407 mm
Weight19.6 kg
Case/ body
Production start1991
Production ended

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  • enpdf9.12Mb Yamaha SY77 Operating Manual
  • enpdf2.42Mb Yamaha SY99 MIDI Data Format