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Yamaha DGX 640 88 Key Digital Piano
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      Yamaha DGX 640 88 Key Digital Piano (485991)

Simplified control with built-in recorder and exceptional piano sound.

Yamaha's DGX-640 was designed to be as close to a piano as a Portable Grand can be with its 88-key weighted Graded Hammer Standard keyboard action and wide selection of piano voices. Selecting a sound is as easy as keying in a number, and recording virtuoso performances is simple with the built-in recorder. The included Yamaha Education Suite and USB connectivity add full functionality.

Just as on a traditional acoustic piano, the keys of the lower notes have a heavier touch, while the higher ones are more responsive to lighter playing. The keyboard's sensitivity can even be adjusted to match your playing style. This Graded Hammer technology also enables the instrument to provide authentic touch in a lightweight instrument. The matte finish of the black keys enhances the keyboard's luxurious appearance.

Amazingly Realistic and Dynamic Sounds
Yamaha's highly acclaimed Sweet! and Cool! Voices deliver incredibly natural and very dynamic sound. Use the Pitch Bend wheel and hear these Voices—especially the Sax and Trumpet—truly come alive.

Live!, Cool! and Sweet! Voices
Live!, Cool! and Sweet! Voices gives you a huge palette of acoustic and electronically amplified instrument sounds. A blend of long, stereo and multilayered samples is used to fully capture the natural presence, resonance, expression, and vibrato of the real instrument.

Digital Signal Processor (DSP)
237 types of DSP effects can be added to the Main and Dual Voices. These range from reverb-like ambience effects to distortion and other dynamic processing tools that let you enhance the sound or completely transform it.

Easy Song Arranger
In addition to each song's default style, you can select any other style to play the song with the Easy Song Arranger feature. This means that you can play a song that is normally a ballad, for example, as a bossa nova piece or hip-hop tune, etc. You can create totally different arrangements by changing the style in which a song is played. You can also change the song's melody Voice and the keyboard Voice for a complete change of image.

Performance Assistant Technology (P.A.T.)
Play along with a song on the instrument's keyboard and produce a perfect performance every time—even if you play wrong notes. All you have to do is play on the keyboard—alternately on the left- and right-hand ranges of the keyboard, for example—and you'll sound like a pro as long as you play in time with the music.

Music Database plus External Files
You want to play music in your favorite style, but you're not sure how to select the best Voice and style for the type of music you want to play? Simply pick a style from the Music Database. The panel settings will automatically be adjusted for the ideal combination of sounds and style! Furthermore, this instrument works with Music Database files transferred from a computer or stored on a USB flash memory device. These files can be used in the same way as the internal Music Database.

The USB TO DEVICE on the instrument allows you to connect USB memory devices such as flash drives or hard drives, enabling you to save or load registrations and user songs created on the instrument, as well as read data from the connected device such as MIDI files or style files.

Dive in and take advantage of the wide world of computer music software. Connections and setup are exceptionally easy, and you can play back your computer-recorded parts with different instrument sounds—all from a single instrument.

Performance with Music Notation Display
When you play back a song, the corresponding score will be shown on the display. This is a great way to learn how to read music. If the song contains lyric and chord data, the lyrics and chords will also appear on the score display.

Yamaha Education Suite (Y.E.S.)
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. Each lesson can be done in isolation with either your left hand or right hand, or both.

Yamaha DGX 640 88 Key Digital Piano Features:

  • Graded Hammer Standard (GHS) keyboard with 88 keys
    Amazingly realistic and dynamic voices
    Blends together long, stereo and multi-layered samples for a natural sound
    237 types of digital signal processes from reverb ambiances to distortion
    USB connectivity allows you to save and recall registrations and user songs

Yamaha DGX 640 88 Key Digital Piano Specifications:

    Width 1,399mm (55-1/16") with keyboard stand
    Height 761mm (29-15/16") with keyboard stand
    Depth 445mm (17-1/2") with keyboard stand
    Weight 27.7kg (61lbs. 1oz.) with keyboard stand
    Number of Keys 88
    Type Graded Hammer Standard (GHS) Keyboard
    Touch Response Yes
    Other Controllers
    Pitch Bend Yes
    Type Full Dot LCD
    Size 320 x 240 dots
    Color Monochrome
    Contrast Yes
    Score Display Function Yes
    Lyrics Display Function Yes
    Language English
    Tone Generating Technology AWM Stereo Sampling
    Number of Polyphony (Max.) 64
    Number of Voices 142 + 381 XGlite + 12 Drum/SFX Kits
    Featured Voices 3 Live! Voices, 8 Sweet! Voices, 5 Cool! Voices
    GM Yes
    XGlite Yes
    XF Yes
    Reverb 35 types
    Chorus 44 types
    DSP 238 types
    Master EQ 5 types
    Dual/Layers Yes
    Split Yes
    Panel Sustain Yes (in Menu)
    Number of Preset Styles 165
    Fingering Multi / Full Keyboard, AI Finger
    Style Control INTRO, MAIN x 2, FILL-IN, ENDING
    User Styles Style File Format
    Other Features
    Easy Song Arranger Yes
    Music Database 305 + External Files
    One Touch Setting (OTS) Yes
    Number of Preset Songs 30
    Number of Songs 5
    Number of Tracks 6 (5 Melody + 1 Chord)
    Data Capacity Approx. 30,000 notes for 5 user songs (when only "melody" tracks are recorded)
    Recording Function Yes
    Compatible Data Format
    Playback SMF
    Recording SMF (Format 0)
    Number of Buttons 4 ( x 8 banks )
    Performance Assistant Technology (PAT) Chord, Melody, Chord/Free, Chord/Melody
    Yamaha Education Suite (Y.E.S.) Waiting, Your tempo, Minus one, Repeat & Learn, Chord Dictionary
    Demonstration Yes
    Overall Controls
    Metronome Yes
    Tempo Range 5 - 280
    Transpose -12 to 0, 0 to +12
    Tuning Yes
    PIANO Button Portable Grand Button
    Internal Memory 1895KB
    External Drives Optional USB Flash Memory (via USB To Device)
    DC IN DC IN 12V
    Headphones x 1
    Sustain Pedal x 1
    Pedal Unit x 1
    Amplifiers 6W + 6W
    Speakers 12cm x 2 + 3cm x 2
    Power Supply Adaptor (PA-150 or the equivalent )
    CD-ROM Yes
    Music Rest Yes
    Keyboard Stand Yes
    Pedal/Footswitch Yes
    Song Book Included in CD-ROM with PFD format

Yamaha DGX 640 88 Key Digital Piano

5 Years


Choose from the folowing Yamaha Warranties:

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 11 reviews)
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  • yamaha dgx 640

    As reviewed by Doug Market on 12/7/2011

    I have been playing for 50 plus years and if you are looking for a great digital piano at a good price, the dgx 640 is it. I have owned or played just about every piano, from keyboards to grands and everything in between. I needed something to get up into a recording studio upstairs in my home but wanted a good piano. This is it and then some. From playing like a piano, a good piano, to all of the other voices plus interfacing with my computer and mixer,the dgx 640 does it all and quite well. I was quite impressed with the instrument voices. I play several instruments and usually imitated voices irritate me but alot of these are quite good. Try one yourself.

    3 of 3 people found this review helpful.
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  • Yamaha DGX-640

    As reviewed by FLOYD BELLAMY on 2/25/2013

    I bought this Yamaha DGX-640 digital piano several days ago and it's great. I'm learning something new about the piano each day. The only down side is the stand. It DOES NOT appear to be as sturdy as some reviews have stated. I will be buying a stand that does not shake as much as this one does. GB

    2 of 2 people found this review helpful.
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  • Yamaha's Most Piano-like Portable Grand Ever!.

    As reviewed by Fernandez Shaw on 5/19/2011

    The DGX-640 is Yamaha's most feature-packed Portable Grand in history. The full 88 keys feature Graded Hammer Standard action for great feel. And with it's 535 voices, the DGX-640 can sound like a grand piano or a number of other instruments. Beyond that, 237 built-in effects let you shape your tone, ans there's a recorder for capturing ideas. You can even save songs to a USB flash drive. Don't forget the Survival Kit!.

    2 of 2 people found this review helpful.
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