Used Yamaha E423 Keyboard


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Original Specification:


Control Knobs, Arpeggio 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 expanded 150 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 with

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.





DimensionsWidth946mm (37-1/4″)
Height136mm (5-3/8″)
Depth402mm (15-13/16″)
WeightWeight7.0kg (15lbs., 7oz.)

Control Interface

KeyboardNumber of Keys61
TypeOrgan Style
Touch ResponseYes
Other ControllersPitch BendYes
Control KnobsYes
DisplayTypeCustom LCD
Size92mm x 42mm


Tone GenerationTone Generating TechnologyAWM Stereo Sampling
PolyphonyNumber of Polyphony (Max.)32
PresetNumber of Voices183 + 462 XGlite + 15 Drum/SFX Kits + 40 Arpeggio
Featured Voices5 Sweet! Voices, 3 Cool! Voices, 3 Dynamic Voice


TypesReverb9 types
Chorus4 types
Master EQ5 types
Arpeggio150 types

Accompaniment Styles

PresetNumber of Preset Styles174
CustomUser StylesStyle File Format
Other FeaturesEasy Song ArrangerYes
Music Database305 + External Files
One Touch Setting (OTS)Yes


PresetNumber of Preset Songs30
RecordingNumber of Songs5
Number of Tracks6 (5 Melody + 1 Chord)
Data CapacityApprox. 10,000 notes (when only “melody” tracks are recorded)Approx. 5,500 chords (when only “chord” tracks are recorded)
Recording FunctionYes
Compatible Data FormatPlaybackSMF
RecordingNo (Original File Format)


RegistrationNumber of Buttons2 ( x 8 banks )
Lesson/GuidePerformance Assistant Technology (PAT)Chord
Yamaha Education Suite (Y.E.S.)Waiting, Your tempo, Minus one, Repeat & Learn, Chord Dictionary
Overall ControlsMetronomeYes
Tempo Range11 – 280
Transpose-12 to 0, 0 to +12
Tuning+ – 100 cents
MiscellaneousPIANO ButtonPortable Grand Button
Sleep ModeNo

Storage and Connectivity

StorageInternal Memory1.8MB
ConnectivityDC INDC IN 12V
Headphonesx 1
Sustain Pedalx 1

Amplifiers and Speakers

Amplifiers2.5W + 2.5W
Speakers12cm x 2 + 3cm x 2

Power Supply

Power Consumption10W

Bundled Software