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Roland JD-990

Roland JD-990

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 JD800 expansion cards and the JV80 series of expansion boards.

Notable Users: Apollo 440, Mirwais, Prodigy.

Year Released: 1993
Polyphony: 24 voices.
Memories: 128 patches, 2 61-note drum kits.

Manual: http://www.soundprogramming.net/manuals/Roland_JD-990_Manual.pdf