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Roland | JD-990 |
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Description | The JD-990 is an enhanced version of the JD-800 and was the top of the line JD-synth. Its rack-mount design and impressive power and functionality within the studio paved way for the hugely successful JV-series rack modules which lead, ultimately, to the XV-series monster-modules! The JD-990 is a digital synth with 6MB of ROM sounds with "analog-like" edit parameters and features. These include lowpass filtering, ring modulation, osc. sync, frequency cross-mod, etc. The JD-990 is also compatible with JV80 and JD800 expansion boards. The JD-990 has a large LCD display which makes editing very easy and intuitive, you can actually see the envelopes and LFO rates. There's an on-board multi-effects processor with Delay, Reverb, Phaser, Distortion, Chorus, and EQ. For the studio, the JD-990 has MIDI IN/OUT/THRU and eight outputs in four stereo pairs. The JD-990 can hold one internal expansion board and the best choice is to put the Vintage expansion in it because that gives you about 512 patches (Only 255 from JV-series!) of which 256 are specially programmed for the JD-990. |
| Brand | Roland |
| Model | JD-990 |
| Device | Synth |
| Type | Rack |
| Engine Type | Digital |
| Engine | Wave |
| Voices (max) | 24 |
| Multitimbral | 7 |
| Oscillators | 4 |
| LFO | 2 |
| Engine Detailed | 6MB of ROM waveform data (expandable to 16MB), 4 osc. per patch |
| Filter (VCF) | TVF: Lowpass/bandpass/highpass-filters with resonance and envelopes |
| Envelope (VCA) | TVA envelopes and pitch envelopes |
| FX | Delay, Reverb, Phaser, Distortion, Chorus, EQ |
| Memory | 3 banks x 64 patches (expandable), 3 drum kits with 61 sounds |
| Keys | 0 |
| Key type | N/A |
| Velocity | N/A |
| Aftertouch | N/A |
| Midi | I-O-T |
| Produced: | 1993 - 1993 |
| Legend: | Obvious | Y: Yes, N: No, N/A: Not Applicable | |
| VCO | Voltage Controlled Oscillator | DCO | Digital Controlled Oscillator |
| LFO | Low Frequency Oscillator | Sub | Sub Oscillator |
| VCF | Voltage Controlled Filter | VCA | Voltage Controlled Amplifier |
| Velocity | As with a piano, the harder you hit a key, the louder the sound, unlike most organs which always produce the same loudness no matter how hard you hit a key. | Aftertouch | Pressing a key after you activated it. Channel Aftertouch, no matter which key, it will send a Channel message. Poly Aftertouch, sends the pressure per key instead of the whole channel. |
| Values for OSC, LFO, Filter, Envelope are per voice unless stated otherwise. | |||
