Both pianos use Kawai’s revolutionary , which replaces wooden jack, repetition lever, and hammer butt with carbon-fiber reinforced ABS plastic. This results in a lighter, stronger, and more humidity-stable action than any all-wood mechanism.
This is where the debate often gets heated among technicians.
is the longer key stick. This provides the player with more leverage and control, making it feel and play more like a larger 6' 6" concert grand rather than a standard salon grand. Structural Integrity: kawai rx2 vs gx2
For decades, the Kawai RX series was the gold standard for the "conservatory grand." It was the piano you found in university practice rooms, the reliable workhorse for small recital halls, and the dream instrument for a serious player on a budget. Then, in 2012, Kawai did the unthinkable: they discontinued the beloved RX line and replaced it with the GX series.
Both feature Kawai's renowned Millennium III Carbon Fiber action. However, the GX-2 features a slightly longer key-stick length, providing improved control and a faster repetition speed similar to larger instruments. Both pianos use Kawai’s revolutionary , which replaces
KAWAI カワイ 新品 グランドピアノ GX-2 奥行180cm ¥1,978,000 5'10" (178 cm) Kawai Piano Gallery Houston 5'11" (180 cm) Piano Buyer Millennium III (after ~2005) Millennium III (Enhanced) Tone Profile Warm and rich; early models were more mellow Tone Profile Rounder, more colorful, and lush Discontinued (~2012/2013) Merriam Music Current production model Merriam Music Expert Observations Kawai RX-2 Classic Grand Piano - Houston
| Musical Passage | RX-2 Performance | GX-2 Performance | | :--- | :--- | :--- | | | Sweet, intimate, slightly closed | Open, breathy, with more harmonic shimmer | | Beethoven Hammerklavier (forte) | Punchy, clear, but runs out of headroom | Powerful, authoritative, surprising bass depth | | Bill Evans jazz voicings | Warm, woody, vintage | Clean, modern, with a glassy top end | | Rachmaninoff C# Prelude (climax) | Breaks up slightly with heavy pedal | Stays clear and resonant | is the longer key stick
The GX-2 feels like a luxury car interior compared to the RX-2’s solid, reliable sedan interior. The soft-close fallboard alone prevents finger smashes for children.