Roland JD-990

The Roland JD-990 Super JD is a module version of Roland JD-800 synthesizer with expanded capabilities, which was released in 1993. JD-990 is a multitimbral synthesizer utilizing 'wave-table' sample-based synthesis technology.[1] It is equipped with 6 MB of ROM containing wavetables, four sets of stereo outputs that are assignable to individual, internal, instruments, and standard MIDI in/out/through ports. JD-990 has a large LCD display[2] and programming takes place through a keypad on the front panel of the unit. The unit can generate multi-timbral sounds reminiscent of the vintage analogue synthesizers but is also capable of generation of modern digital textures. There are several expansion boards available for JD-990 that can be installed in the provided expansion slot in the chassis of the unit.[3]

JD-990 Super JD
JD-990
ManufacturerRoland
Dates1993-1996
PriceUS$2,195
UK£1,445
Technical specifications
Polyphony24 voices
Timbrality7 + 1 Drum part
Oscillator6MB of PCM ROM with 195 waveforms (expandable to 16MB), 4 waveforms (tones) per patch
LFO2 per patch
Synthesis typeDigital Sample-based Subtractive
FilterTVF (Time Variant Filter): Lowpass/bandpass/highpass-filters with resonance
AttenuatorTVA envelopes, TVF envelopes and pitch envelopes
Aftertouch expressionYes
Velocity expressionYes
Storage memory3 banks of 64 patches (expandable), 3 drum kits with 61 sounds
EffectsChorus, Reverb, Delay, Phaser, Spectrum, Enhancer, Distortion and EQ
Input/output
KeyboardNo
External controlMIDI

Features

The JD-990 had the following features which were not available on the JD-800:

  1. Expanded wave ROM (6 MB vs. 3 MB)
  2. Ability to use an 8 MB expansion board from the SR-JV80 series
  3. JV-80 patch import
  4. 4 additional outputs
  5. True stereo engine
  6. Individual panning of each tone in a patch
  7. Oscillator sync
  8. Frequency cross-modulation (FXM)
  9. Matrix Modulation
  10. Modulation of the same destination from multiple sources
  11. Oscillator structures that allow ring modulation and serial dual filters
  12. Additional LFO waveforms: sine, trapezoid and chaos
  13. MIDI CC control of parameters
  14. Tempo sync delay
  15. Polyphonic portamento
  16. Analog Feel. Adds a very subtle pitch modulation to the basic waveforms intended to recreate an analogue synth's 'drift'
  17. Performance memories
  18. Additional multitimbral slots
  19. One patch can keep full effects in multi mode

Expandability

The JD-990 is compatible with the following:

  • The SR-JV80 series of expansion boards. The SR-JV80-04 Vintage Synth board includes 255 patches programmed specially for the JD-990.
  • The SL-JD80 series of waveform & patch cards released for the JD-800.
  • The SO-PCM1 series of waveform cards.
  • The JD9D series of patch cards developed specifically for the JD-990.

Factory Sounds

The Factory presets of the JD-990 were created by Eric Persing and Adrian Scott.

Notable users

The JD-990 has been used by artists such as Klaus Schulze,[4] Paul Shaffer,[5] Steve Duda,[6] Vangelis, The Prodigy, Apollo 440, ATB, and Mirwais.[3] Apollo 440 used the JD-990 for atmospheric sounds on the track "The Machine in the Ghost", on the album Gettin' High on Your Own Supply.[7] On the Faithless song "Insomnia", the pizzicato hook is from a JD-990, with added reverb.[8]

gollark: Except apioforms.
gollark: I mean, depends what you mean by "illusion".
gollark: I'd say simulations are real-ish, the other ones not so much.
gollark: I'm not sure it's actually much of a meaningful question, since you can't tell the difference either way.
gollark: A hypothetical lifeform in CGoL can't see if it's running on a laptop in our universe or some weird simulator in lambda calculus running on a distributed computing cluster of extrauniversal bees.

References
  1. "JD-800: COMPARABLE SOUND MODULE". roland.com. Retrieved 2019-03-22.
  2. "The History Of Roland: Part 4 |". www.soundonsound.com. Retrieved 2018-07-17.
  3. "JD-990 Profile on Vintage Synth Explorer|". vintagesynth.com. Retrieved 2019-03-22.
  4. "Catching Up With Klaus Schulze". KeyboardMag.com. Retrieved 2019-03-22.
  5. "Paul Shaffer's Keys to The Late Show". KeyboardMag.com. Retrieved 2019-03-22.
  6. "Steve Duda Ponders Programming and Production". KeyboardMag.com. Retrieved 2019-03-22.
  7. "Apollo 440: Gettin' High On Your Own Supply". Future Music. No. 220. November 2009. p. 20. ISSN 0967-0378. OCLC 1032779031.
  8. Snoman, Rick (2004). Dance Music Manual: Tools, Toys, and Techniques (2nd ed.). Focal Press (published 2012). p. 87. ISBN 9781283709583. OCLC 819507201.

Further reading
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