The RD-300S is a late 1980's digital piano based on additive synthesis. Polyphony varies depending on the instrument sound selected. Piano 1, Piano 2, Piano 3, Vibraphone, and Electric Piano 1 have 16-note polyphony while the Harpsichord, Clavinet, and Electric Piano 2 tones have 10 notes of polyphony.
Keyboard: 88 keys
Polyphony: 16 notes
Preset Patches: 8
ROM: 8 instruments
Effects: chorus, tremolo
Power Consumption: 20 watts
Weight: 33 kg
Dimensions: 1405 mm x 461 mm x 133 mm
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