61-key touch response keyboard with 700 natural voices and arpeggio feature.
Super-realistic Cool! And Sweet! Voices
Control knobs for real time control
Arpeggio feature automatically generates chordbased phrases
Real-time pitch control with pitch bend wheel
Music Database: 305 song titles for quick keyboard setups Innovative styling and superior sound 61-key touch response keyboard with 700 natural voices and arpeggio feature.

Features
Super-realistic Cool! And Sweet! Voices
Control knobs for real time control
Arpeggio feature automatically generates chordbased phrases
Real-time pitch control with pitch bend wheel
Music Database: 305 song titles for quick keyboard setups
The PSR-E423 offers several innovative features. The basic features for learning to play--like the Yamaha Portable Grand and Yamaha Education Suite -- and features for when it's time to perform, like synthesizer Control Knobs for real-time control of filter, effects, sound envelope and Style tempo. New colors from different musical styles can be added with 150 different patterns and 40 arpeggio Voices. These easy-to-use professional features, along with its new black body, sent this keyboard apart from others in its class.

Control Knobs, Appreciator and Pitch Bend
Most of the features of the PSR-E423 have been enhanced over its predecessor. Two control knobs provide real-time control for filtering the main melody tone, and changing the tempo of the arpeggio just like an analog synthesizer. The Pitch Bend wheel brings Voices like the Sax and Trumpet to life.

Improved Arpeggio Function
Tap into instant inspiration with the Arpeggio function which has been improved for smoother playability. New hold mode and allocated key-range will free your hands for playing with both hands. It provides an expanded150 patterns that automatically generate even more useful phrases that change depending on the notes and chords you play.

A Variety of New Dynamic Voices
Dynamic Voices usually found on high-end workstations, are now on the new PSR-E423. There are two different waveforms that change depending on how hard you play the keyboard, this allows more expression on Voices such as overdriven or nylon guitar. High quality Voices, from acoustic instruments to electric sounds, have been expanded to 700 varieties. All of these high-quality Voices sound better through 2-way speakers with enhanced bass.

Wider World Content and 174 Varieties of Styles
Auto-backing Mode Arabic, Indian and Chinese content has been added to Styles, Rhythm and Voices. With our high-quality Styles and Voices, you'll sound like you have a professional backing band behind you.

Extended Flash Memory
Connectivity to PC via USB
4 times more flash memory has been added to the PSR-E423 so you can play along with your favorites transferred from a PC.

Music Database
You can start immediately and easily playing with the best chosen accompaniments and voices only by selecting music category.
9 step lessons supports your practice completely -Yamaha Education Suite (Y.E.S.)-You can take appropriate lessons for your step. You can choose lesson for left, right , both hands step by step.Yamaha Education Suite (Y.E.S.) is an advanced set of helpful learning tools built into the instrument, letting you teach yourself how to play and perform. Y.E.S. helps you master a song with easy lesson steps.

Portable Grand Button
Playing piano is fast and easy with Yamaha's Portable Grand function. One dedicated button brings up a great sounding piano, stunningly rich and authentic in its sound as well as setting up the keyboard to play as a piano.

XGlite Tone Generator
Best sound, widest compatibility. The built-in tone generator handles virtually any MIDI song file--from commercially available music data to songs created on computer or other MIDI instruments. Naturally, it plays back conventional GM song data, but it also is compatible with the enhanced XGlite format, ensuring high sound quality.

Width 946mm (37-1/4")
Height 136mm (5-3/8")
Depth 402mm (15-13/16")
Weight 7.0kg (15lbs., 7oz.)

Power Supply Adaptor (PA-3C/PA-130), or batteries (Six "AA" size, LR6 or equivalent batteries)
Power Consumption 10W