The Roland JD-990 is the rackmount version of the Roland JD-800 with a few extras thrown in. It has 6 megabytes of ROM sounds (two more than the JD-800) and includes many effects including filter, ring modulator, cross-modulation, delay, reverb, phaser, distortion, chorus, and equalization.
It has a lot of expansion potential due to its support for both
SL-JD80 expansion cards and the JV80 series of expansion boards.
The JD-990 is known to have been used by Apollo 440, Mirwais, and Prodigy.
Year Released: 1993
Polyphony: 24 notes
Multitimbral: 8 parts
Preset Patches: 128
User Patches: 64
Preset Performances: 32
User Performances: 16
Preset Drum Kits: 2
User Drum Kits: 1
Effects: 3-band EQ, distortion, phaser, spectrum enhancer, chorus, delay, reverb
Screen: 320 x 80 pixel backlit LCD
Power Consumption: 23 watts
Dimensions: 482 mm x 281 mm x 88 mm
Weight: 5.1 kg
This is a 2-space rack unit.
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