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SYNTHESIZERS · 1993
JD 990
Roland
Manufacturer
Roland
Type
Synthesizers
Production
1993–1996
01
From the Community
From the community
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02
Document Library
Manuals
603
Audio Demos
04
Compatible Sound ROMs
05
EPROM Archive
06
Parts & Components
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07
Modifications
08
Owner Registry
Production figures for the JD 990 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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09
System Components
CONTENTS
01From the Community02Document Library03Audio Demos04Compatible Sound ROMs05EPROM Archive06Parts & Components07Modifications08Owner Registry09System ComponentsManufacturer
Roland
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Specifications
- LFO
- 2 per patch
- Dates
- 1993-1996
- Price
- United States:$2,195United Kingdom:£1,445
- Filter
- TVF (Time Variant Filter): Lowpass/bandpass/highpass-filters with resonance
- Effects
- Chorus, Reverb, Delay, Phaser, Spectrum, Enhancer, Distortion and EQ
- Keyboard
- No
- Polyphony
- 24 voices
- Attenuator
- TVA envelopes, TVF envelopes and pitch envelopes
- Oscillator
- 6MB of PCM ROM with 195 waveforms (expandable to 16MB), 4 waveforms (tones) per patch
- Timbrality
- 7 + 1 Drum part
- Manufacturer
- Roland
- Storagememory
- 3 banks of 64 patches (expandable), 3 drum kits with 61 sounds
- Synthesis type
- DigitalSample-basedSubtractive
- External control
- MIDI
- Velocity expression
- Yes
- Aftertouchexpression
- Yes
Gallery





