Roland EXPANSION BOARD SR-JV80-10 Bass & Drums JV-1010/1080/2080 etc from japan
Roland expansion board SR-JV80-10 "BASS&DRUMS". The waveform of this product is the CD-ROM "BASS LEGENDS", "BURNING GROOVES", "LIQUID GROOVES" is selected. (JD-990 can convert and load patches for use.).