01
From the Community
From the community
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02
Audio Demos
03
Compatible Sound ROMs
04
Parts & Components
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05
Modifications
06
Owner Registry
Production figures for the S90 were never widely published, so there’s no official record of how many were built — or how many survive. This registry is a community census: every owner who logs their unit makes it the closest thing there is to a real count.
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07
System Components
CONTENTS
01From the Community02Audio Demos03Compatible Sound ROMs04Parts & Components05Modifications06Owner Registry07System ComponentsManufacturer
Yamaha
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Specifications
- Filter
- 18filter types
- Effects
- reverb, chorus, vocoder, 5-band EQ
- Keyboard
- 88 keys
- Polyphony
- 128 notes
- Oscillator
- 2 772 waveforms
- Timbrality
- 16 parts
- Manufacturer
- Yamaha
- Synthesis type
- AWM2 technology and Expanded Joint function
- External control
- MIDI in, out, thru, USB