https://synth.market/en/catalogue/yamaha/sy77/
Usage area
Synthesizer
Workstation
Polyphony
Voices 32
Multi Timbral Capacity 16 part(s)
Tone Generator / Sound Synthesis
Synthesis Method Frequency Modulation (FM)
Advanced Frequency Modulation (AFM)
Yamaha
RCM (Realtime Convolution and Modulation Synthesis)
AWM2 (Advanced Wave Memory 2)
Types of Oscillators 45
FM Operators 6
Oscillators per voice 6
Waveform/ Spectral form (main generator): Waveform Count 112
Waveform/ Spectral form (main generator): Waveform ROM 4 Mb
Programs/ Voices/ Timbres
Single Voice Preset 128
User-defined Single Voice 64
Multitimbral Preset 16
User-defined Multitimbral 16
Effects
Master Effects 2
Effects overall 44
Sequencer
Tracks count 16
Step Sequencer
Sequencer Resolution 96 ppqn
Note Capacity 16000
Max number of songs 1
Preset patterns 99
MIDI in/ out
IN
OUT
THRU
Keys
Type Synth Action
Velocity Sensitivity
Aftertouch
Size 5
Number of Keys 61
Display
Display type TFT
Resolution: Horizontal 240
Resolution: Vertical 64
Built-in controllers
Assignable Wheel 1
Pitch Bend Wheel
Modulation Wheel
Programmable
Jog dial
External controllers
Breath Controller
Sustain foot pedal
Expression foot pedal
Foot Controller 1
Audio out
Analogue: 1/4" (6.35mm) 4
Analogue: 1/4" (6.35mm) headphones preamplified 1
Computer Interfaces
FDD
Expandability
Preset Memory Slot/ Wave Expansion Board 2
OS
Proprietary
Power
Voltage 220V
Voltage 240V
Voltage 120V
Power Supply Built-in, internal
Power consumption 28 W
Dimensions
Height 119 mm
Width 1046 mm
Depth 407 mm
Weight 17 kg
Case/ body
Metal
Color
Black
Production start 1989
Production ended