Roland RD-300GX specs
Stage piano specs verified against manufacturer documentation.
Brand: Roland
6.2/ 10
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PHA alpha II action with 128-note polyphony and 110 tones; the RD-300NX replaced it and the RD-88 outclasses it.
#59 of 64 stage pianos · full ranking| Status | legacy |
|---|---|
| Keys | 88 |
| Key action | 88 keys (PHA alpha II Keyboard) |
| Polyphony | 128 |
| Sounds / presets | 110 |
| Speakers | None (line out only) |
| USB audio | No |
| Weight | 16.4 kg |
| Sound engine | Conforms to General MIDI 2 System88-key Stereo Multi-sampled Piano Sound |
| Released | 2007 |
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Spec source: www.roland.com — verified 2026-10-10