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| Model | Style | Voices | Parts | Sample Rate | DAC | Data Size |
| JD-800 | 61-key | 24 | 6 | 44.1k | 18-bit (tbd) | 16-bit, 44.1k |
| JD-990 | 2U module | 24 | 8 | 44.1k | 18-bit (tbd) | 16-bit, 44.1k |
| Model | Presets (ppr) | User (ppr) | Expansion (ppr) | Total ROMRAM | Soundsets | GM/GS |
| JD-800 | ? | 64 | ? | ? | JD | no |
| JD-990 | 128, 32, ? | 64, 16, ? | ? | 32MB | JD | no |
| * ppr = Patches, Performances, Rhythms | ||||||
| Model | Base ROM | Expansion ROM | RAM (int/max) | Data Card | Base Waves | Display |
| JD-800 | 12MB | see Other | no | see Other | 108 | 2x22 + 2x16 |
| JD-990 | 12MB | 1x SRJV | no | see Other | 195 | 320x80 |
| Model | Tones | Reverb | Chorus | Multi-FX | EQ | Seq./Arp. |
| JD-800 | 4 Mono | Yes (see Notes) | Yes (see Notes) | Yes (see Notes) | 3 Band | no/no |
| JD-990 | 4 Mono | Yes (see Notes) | Yes (see Notes) | Yes (see Notes) | 3 Band | no/no |
| Model | Analog Outs | Digital Outs | Inputs | USB | SCSI | Disk Drive |
| JD-800 | 2 St. or 4 Mono | no | no | no | no | no |
| JD-990 | 4 St. or 8 Mono | no | no | no | no | no |
| Model | Other |
| JD-800 | SO-JD80 ROM Card. M-256E RAM Card. |
| JD-990 | JD-9D ROM Card, SO-JD80 ROM Card, SO-PCM ROM Card, PN-JV80 ROM Card. |
| Notes | . |
| Base ROM | ROM data is 2:1 compressed. The equivalent 16-bit linear value is shown here. |
| JD Effects | Single Mode (Patch Mode) or Super Synth Part up
to 8 effects at one time. Two Effects Groups A and B. A: Distortion (7 types), Phaser, EQ, Enhancer. B: Chorus (Flanger), Delay, Reverb (10 types). Multi Mode (Performance Mode) supports Dry, Reverb, Delay+Reverb, Chorus+Reverb, per Part. |
| SR-JV80 Expansion Board | 16MB of 44.1k/16-bit Waveforms and Patch Data
using 2:1 compression Each board provides up to 256 Patches and 8 Rhythm Sets |
| Reference Material | URL/Publication |
| JD-800 | Catalog 1992 p15, SE Buyers Guide '93 p24, RUGv9n1 p16, RUGv9n1 p42, RUGv12n1 p62 |
| JD-990 | SE Buyers Guide '93 p24, RUGv12n1 p62 |
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These pages contain
reference information on the above products. Li'l Chips Systems does not provide technical support for Roland Products. Contact the Roland Dealer in your area or the Head Office in your country. |