Detail 01
RH3 weighted hammer action
The action is heavier at the low end and becomes lighter toward higher notes.

Independent shopping perspective
KORG’s black D1 is a slim digital piano for daily practice, stage work, and MIDI-based setups. Its Japanese-made RH3 weighted hammer action is heavier in the lower register and progressively lighter higher up, while 30 internal sounds cover piano, electric piano, organ, clavi, vibraphone, acoustic guitar, and strings. Four piano samples respond to playing dynamics. Line outputs support amplified speakers or recording equipment, and MIDI In/Out connects the D1 with a computer through a MIDI interface.

Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
The action is heavier at the low end and becomes lighter toward higher notes.
Detail 02
Keeps the body slim while retaining the weighted keybed.
Detail 03
Includes piano, electric piano, organ, clavi, vibraphone, acoustic guitar, and string sounds.
Detail 04
Pressing two sound buttons together combines two internal sounds.
Detail 05
Line Out connects to amplified speakers or recording equipment; MIDI supports computer connection through a MIDI interface.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Its piano sound changes among four samples according to your playing dynamics, from light playing through fortissimo.
Yes. Five touch settings are available: light, standard, heavy, stable, and fixed.
Concert Piano, Grand Piano, and Jazz Piano reproduce damper resonance.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.