
Reference Manual
Basic Structure
2
Basic Structure
Functional Blocks
Tone Generator
A/D Input
Arpeggio
Sequencer
Audio Record/Play
Controller
Effect
Internal Memory
Reference
Voice
Performance
Multi
SEQ Play
Master
Remote
File
Audio Rec/Play
Utility
Appendix
About MIDI
Display Messages
Troubleshooting
Basic Structure
The Seven Functional Blocks
The S90 XS/S70 XS system consists of seven main functional blocks: Tone Generator, A/D Input, Sequencer, Arpeggio,
Controller, Effect, and Audio Record/Playback.
AWM2 (Advanced Wave Memory 2)
This instrument is equipped with an AWM2 tone generator block. AWM2 (Advanced Wave Memory 2) is a
synthesis system based on sampled waves (sound material), and is used in many Yamaha synthesizers. For extra
realism, each AWM2 Voice uses multiple samples of a real instrument’s waveform. Furthermore, a wide variety of
parameters—envelope generator, filter, modulation, and others—can be applied.
Controller block
(page 13)
Keyboard
Controllers
Tone Generator
block (page 3)
AWM2 Tone Generator
16 Parts
Voices, Performances,
Multis
Arpeggio block
(page 7)
Arpeggio playback x 4
Sequencer block
(page 12)
Effect block
(page 14)
A/D Input block
(page 7)
MIC Input
Audio Record/
Playback
block
(page 12)
MIDI message flow
Audio signal flow
MIDI Output MIDI Input A/D Input Audio Output
16 track MIDI Sequencer
(playback only)
System Effect
Insertion Effect x 3
Element EQ
Part EQ
Master Effect
Master EQ
USB, MIDI USB, MIDI MIC INPUT OUTPUT,
ASSIGNABLE OUTPUT
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