
The GR-09 has a sound engine based on the Roland JV-80. The GR-30 is an upgraded version with more waveforms.
Year Released: 1994
Polyphony: 28 notes
Preset Patches: 128
ROM: 180 waveforms, expandable to 360 with the GR9E-1 expansion board
Effects: reverb, chorus
Screen: 7-segment, 3-line display
Power Consumption: 12V, 230 mA
Weight: 1.6 kg
Dimensions: 302 mm x 274 mm x 58 mm
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