758 high quality voices featuring the new Live! Grand Piano voice

The PSR-EW400 includes 758 high quality voices ranging from acoustic to electric instruments. The new Live! Grand Piano voice makes piano performances sound inspired and expressive. The PSR-EW400 also features 8 Sweet! voices and 3 Cool! voices which use Yamaha's advanced sampling technologies to capture the realism and specific characteristics of each sound.

12W + 12W amplifiers with 12 cm Bass Reflexed speakers

12W + 12W amplifiers power the high-definition 12 cm Bass Reflexed speakers, delivering powerful, crystal clear sound, and offering solid support in standalone performance situations.

76 keys and 48-note polyphony

76 keys and 48-note polyphony allow you to perform with greater expression and flexibility. You can play complex musical passages without dropping a note!

Individual L/R output

Professional audio outputs make connecting to a PA system or studio hardware convenient and quick.

Assignable real-time control knobs, DSP Effects, and Pitch Bend

Two assignable, real-time control knobs let you filter and adjust your sound just like an analog synthesizer. 10 brand new DSP effects can be assigned and controlled by the knobs for dynamic and expressive live performance. The Pitch Bend wheel adjusts the pitch of the sound bringing voices like the Guitar, Sax and Trumpet to life.

Connectivity with audio and MIDI capabilities

The PSR-EW400 features audio transfer through the USB TO HOST terminal*. You can record your performance to your computer or smart device. Connecting to your iOS device adds a new dimension of MIDI control with apps. Connect an external audio player to the AUX IN jack and you can play along with your favorite tunes. The built-in, advanced Melody Suppressor lowers the volume of vocals and melody lines of the original recordings, leaving that part open for you to play**. *For iOS device connection, refer to the "iPhone / iPad Connection Manual" **Depending on the song, the volume of the melody part may not be affected.

iPhone / iPad Connection Manual

USB TO DEVICE terminal

USB TO DEVICE terminal on the instrument lets you load and save your settings and songs to a USB flash drive, as well as transfer data from your PC.

Pattern function to create your own grooves - 25 patterns

The Pattern function puts a wealth of powerful loops and beats at your fingertips, allowing you to instantly create dynamically varied music on the fly like a DJ. And, for even more authentic performance, try the Crossfade and Retrigger functions.

Arpeggio function

Tap into instant inspiration with the Arpeggio function, which has been improved for smoother playability. Hold Mode and Allocated key-range free your hands, allowing you to improvise over the pattern. The 150 Arpeggio patterns adjust and morph around the notes and chords you play on the keyboard allowing for almost limitless creativity.

Worldwide sounds support your music

A rich set of ethnic sounds and scale tunings allow you to enjoy many styles of music around the world, including Latin, Indian, Arabic, African, Chinese, and more.

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 regardless of your ability. Choose from nine step-by-step lessons for left, right, or both hands. Y.E.S. helps you master a song with ease.

Music Database

Get off to a flying start—choose a song and the Music Database automatically selects the best accompaniment and voices for you to start playing immediately.