Roland Super JD-990 Synth Module SN ZF03790

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Rack version of the JD-800

Polyphony - 24 voices
Oscillators - 6MB of ROM waveform data (expandable to 16MB), 4 osc. per patch
Memory - 3 banks x 64 patches (expandable), 3 drum kits with 61 sounds
LFO - 2 per patch
Filter - TVF: Lowpass/bandpass/highpass-filters with resonance and envelopes
VCA - TVA envelopes and pitch envelopes
Effects - Delay, Reverb, Phaser, Distortion, Chorus, EQ
Keyboard - None
Arpeg/Seq - None
Control - MIDI (6-part + rhythm part multitimbral)
Date Produced - 1993