Expandability
The synth was expandable by the inclusion of slots for PCM and RAM cards. The former increased the number of waveforms available to the user, the latter increased the number of patches that could be used. Roland produced a number of expansion kits for the synth (and other compatible models) comprising a pair of cards - a PCM card containing new samples, and a RAM card containing a bank of new presets.
PCM add on cards:
Roland later released 8 add on cards for the JD 800:
- SL-JD80-01 Drums & Percussion STANDARD
- SL-JD80-02 Drums & Percussion DANCE
- SL-JD80-03 Rock Drums
- SL-JD80-04 Strings Ensemble
- SL-JD80-05 Brass Section
- SL-JD80-06 Grand Piano
- SL-JD80-07 Guitar Collection
- SL-JD80-08 Accordion
In 1993, Roland produced the JD-990 (or Super-JD), an expandable rackmountable version of the JD-800 with enhanced capabilities.
Read more about this topic: Roland JD-800