Detail 01
PHA-4 Standard weighted hammer action
The 88-key keyboard uses weighted hammer action with high-resolution sensing and escapement.

Independent shopping perspective
Roland’s RD-88EX is an 88-key stage keyboard that combines PHA-4 weighted hammer action with SuperNATURAL, V-Piano, and ZEN-Core sound engines. Its library contains over 3,000 sounds, including acoustic and electric pianos, pads, and synths. Three zones handle layers and splits, while dedicated knobs and sliders put EQ, effects, and layer controls close at hand. Scene recall supports fast setup changes during a set, and USB audio/MIDI plus an Apple MainStage profile extend its live and production connections.


Strong match
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 88-key keyboard uses weighted hammer action with high-resolution sensing and escapement.
Detail 02
Three zones are available for layering and splitting sounds.
Detail 03
The sound library includes acoustic pianos, electric pianos, pads, and modern synths.
Detail 04
The keys have a textured ivory-feel surface.
Detail 05
The keyboard provides USB audio/MIDI connectivity.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It has 88 keys with PHA-4 Standard weighted hammer action.
Yes. The RD-88EX has three zones for layering and splitting.
Yes. The Scene function saves and recalls custom setups.
Yes, it includes a USB audio/MIDI interface.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.