The Yamaha PSR-E423 piano keyboard 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.

The Arpeggiator on the PSRE423 provides an expanded 150 different patterns and 40 arpeggio Voices. These easy-to-use professional features, along with its new black body, set the Yamaha PSRE423 keyboard apart from others in its class.

Control Knobs, Arpeggiator 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 PSRE423. 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 even better through the bass-enhanced 2-way speakers.

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 PSRE423 so you can play along with your favorites transferred from a PC.

• Real time control using two Control Knobs and Pitch Bend wheel
• 150 different Arpeggiator patterns: cool sounds & grooves
• USB & larger Flash ROM: download songs from the Internet
• 6-track sequencer allows you to record your own music
• 2-way stereo speaker system with bass ports for fuller sound
• Performance Assistant guarantees a rewarding music experience
• Yamaha XGlite/GM voices plus Sweet!, Cool!, Split & Dual voice
• Easy Song Arranger: re-mix MIDI files and play it your way
• Interactive Lessons: "Your Tempo" mode helps you learn to play
• Import new music Styles and save to flash memory via PC
• Included items: PSRE423, music rest, owners manual

Keyboard	Number of Keys		61 Keyboard-style keys
	Touch Response		Yes
Voice	Number of Voices		700(183 Panel Voices + 462 XGlite Voices + 15 Drum/SFX Kits + 40 Arpeggio Voices)
	Numer of Polyphony		32
	Featured Voices		Sweet! Voice x 5 Cool! Voice x 3 Dynamic Voice x 3
	Voice Edit		2 Control Knobs (Filter Cutoff/Resonance, Effect Reverb/Chorus, EG Attack/Release, Style Filter Cutoff/Resonance, Style Tempo)
	Compatibility	XG lite/ XG/ GM	Yes/ No/ Yes
Effect	Reverb/ Chorus		9 types/ 4 types
	Preset Master EQ		5 types
	Dual/ Split		Yes/ Yes
	Harmony / Echo		26 types
	Arpeggio		150 types
Style	Preset / User		174 / Yes
	Sections		Intro / Ending / Main A / Main B / Fill AB / Fill BA
	Fingering		Multi
Song	Playback	#Preset Songs	30 (30 onboard, 70 CD-ROM)
		Compatible File Format	SMF
	Recording	Number of Songs	5 (Max)
		Number of Tracks	6 (5Melody + 1Chord)
		Realtime/ Step/ Edit	Yes/ No/ No
	User Song to SMF Converter		No
	Score Display		No
Easy Song Arranger			Yes
Music Database Overall Control	Number of Songs		305
	Tempo/ Metronome		Yes
	Transpose/ Tuning		-12 to 0, 0 to +12/ +-100 cents
	Pitch Bend Range		1 to 12
Lesson	Type		Yamaha Education Suite (Y.E.S.) Waiting,Your tempo,Minus one
	Repeat & Learn		Yes
	Chord Dictionary		Yes
Performance assistant technology			Chord
One Touch Setting			Yes (Incl. Voice List)
Registration Memory			2 Pads x 8 Banks
Controller	Pitch Bend Wheel		Yes
	Control Knobs		Yes, Knobs x 2
	Pedal		Sustain (Option)
Display	Type		Custom LCD/92mm x 42mm
	Backlit		Yes (Blue LED)
Storage	Flash Memory XG/XF Songs		Yes (1.8MB)
Outboard	Song	Style	Yes
Content	Others		Yes
Cabinet	Key Cover Style		Sliding
PC Connectivity	Song Transfer		Yes
	Interactive (DMN/Hi-Chao)		Yes
Aux. Jacks	DC IN		DC IN, Phones (/Output), Pedal(Sutain), USB TO HOST(MIDI)
Amp & Speakers			2.5W+2.5W/12cm×2 + 3cmx2
Sleep Mode			No
Power	Power Supply		Adaptor (PA-130), or batteries (Six “AA” size, LR6 or equivalent batteries)
Dimensions	Width/Depth/Height (w/o MusicRest)		946mm/402mm/136mm
Weight			7.0kg (15lbs. 7oz.)
Bundled Accessories	Song Book		No (CD-ROM including)
	CD-ROM		Yes/ Menu Application, Musicsoft Downloader, USB-MIDI Driver, Song Data, Style Data, MDB Data, Song Book (PDF)
* All tentative specification.

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	Yamaha PSRE 423 Reviewer: Herb from Tucson, AZ What a treat. I played keyboard in bands back in the 80's, and this thing blows away anything we had back then. The arpeggio function is amazing. Got a great deal here too. Was this review helpful to you?