Developed simultaneously with the Roland flagship RD-700SX, the Roland RD-300SX Digital Piano provides the same stunning 88-note multisampled piano, plus 128-voice polyphonic performance, and expanded soundsets. Though a heavyweight in features, physically the RD-300SX is an especially light 88-note piano and transports easily. It has Compact Progressive Hammer Action, true 88-note piano samples from Fantom-X, USB MIDI interface, simple navigation, and premium quality effects. With Roland's most powerful sound engine at its core, the RD-300SX delivers heavyweight specs in a lightweight body. Sharing much in common with its high-end sibling, the RD-700SX, the RD-300SX offers 128-voice polyphony, 88-note individually sampled grand piano waveforms, and hundreds of additional sounds and rhythms from jazz to techno. The RD-300SX features Roland's Compact Progressive Hammer-Action keyboard, which simulates a real grand piano by providing a heavier touch in the lower octaves that gets increasingly lighter in the upper range. This keyboard has many of the same design elements as Roland's acclaimed Progressive Hammer-Action Keyboard, but its keyboard-action mechanism is much more compact and lightweight. Players will appreciate the RD-300SX's ease of operation and convenient hands-on controls. Dedicated buttons and knobs are provided for instant access to the piano sound, EQ settings, and dual/split keyboard setups. No searching through menus or submenus to find the most common functions; everything you need is within quick reach. Thanks to the handy Setup mode, you can quickly store and recall parameter changes with the touch of a button. A pitch bend/modulation lever has been added for expressive control. Operation is clean and streamlined so you can focus on playing, not programming. For subtle sweetening or complete transformations, the RD-300SX offers a wide lineup of 78 multi-effect types to choose from, plus independent effects such as reverb, 2-band digital EQ, and Sound Control. Add sparkle to your grand piano sound, deep-fry an electric piano, add depth and spatial movement to strings--the choices are vast. It has an impressive, heavy-duty body (with sophisticated black brushed metal finish) while the RD-300SX is actually one of the lightest 88-note pianos. At less than 35 pounds (15.5kg), it's ultra easy to transport, yet built tough enough for the rigors of the road. Connect the RD-300SX to computers via its USB port for one-cable MIDI communication. Standard MIDI in/out ports connectors are provided as well. Master, slave, or solo--the RD-300SX can be played as a standalone instrument, driven from other MIDI gear, or used as the master controller for an entire MIDI setup.