Yamaha Arius YDP-S55 Digital Piano Black
BEAUTIFUL, POWERFUL SOUND SAMPLED FROM THE ACCLAIMED YAMAHA CFX CONCERT GRAND PIANO
The YDP-S55 features a piano Voice sampled from Yamaha’s flagship CFX concert grand piano. This renowned piano delivers sparkling highs and a powerful, resonant bass combined in a superbly expressive sound.
The YDP-S55 has the same detailed sound—from the lower keys to the higher keys—full of clarity and rich in colorful harmonic content. It gives you extraordinary expressive power and nuance that authentically responds in your daily practice as well as your most emotion-filled performances.
AUTHENTIC ACOUSTIC PIANO PLAYABILITY AND HALF-DAMPER PEDAL CONTROL
With an 88-key piano action, the GH3 (Graded Hammer 3) keyboard reproduces the touch of an acoustic piano, from a naturally heavy feel in the lower keys to a lighter touch in the upper octaves. The GH3 keyboard provides a grand piano-style response and feel, allowing rapid note repetition and authentic expressive control. Moreover, there’s a half-damper feature that authentically replicates the damper action on a grand piano, providing rich expressive variation.

HARMONIC RESONANCE LIKE THAT OF A GRAND PIANO—VIRTUAL RESONANCE MODELING LITE (VRM LITE)
One of the allures of the grand piano is the sympathetic resonance created by the vibration of the entire instrument. The YDP-S55 elaborately reproduces this rich sympathetic resonance through a groundbreaking technology called Virtual Resonance Modeling Lite (VRM Lite). VRM Lite produces a richly varied sound by simulating the complex sympathetic tones that arise when string vibrations are transmitted to the soundboard and other strings, in response to the timing and intensity of key playing and pedaling.

RICH VARIETY OF BUILT-IN SONGS, AND INTUITIVE OPERATION WITH SMART PIANIST APP
Naturally, the YDP-S55 has an authentic grand piano sound, but it also features various other built-in instrument sounds, for a total of 10 Voices—including electric piano, organ, vibraphone, and strings.
The Yamaha Arius YDP-S55 Digital Piano also has 353 built-in songs, including 50 famous classical songs, and 303 comprehensive practice exercises from famous methods, such as Beyer, Burgmüller, Czerny, and Hanon. The instrument is also compatible with Yamaha’s free Smart Pianist app—simply download the app to your smart device and connect it to the instrument*.
With the Smart Pianist app, you can easily operate the various Voice functions of the instrument and use it to call up scores of the built-in songs. It also features a comprehensive Piano Room function for changing the tonal quality and resonance settings of the piano sound.
* A cable connection is required. Make sure to purchase the correct cable for your smart device.

FEATURES FOR GREATER LISTENING COMFORT WHEN USING HEADPHONES
The YDP-S55 employs new technology that corrects the sound balance optimally according to the volume you set—giving you an exceptionally natural sound that’s easy to listen to and is gentle on the ears, even when playing for a long time.
It also has the Stereophonic Optimizer effect that lets you enjoy the natural, spacious sound you experience sitting in front of an acoustic grand piano, even when wearing headphones.
LIMITING THE MAXIMUM VOLUME
A new Volume Limiter function lets you set a fixed maximum volume level to protect your hearing from loud sound over the speakers or headphones.
RECORD AND PLAYBACK YOUR PERFORMANCES
The Yamaha Arius YDP-S55 Digital Piano has powerful tools that let you record and check your performances, or record a part with just one hand and practice the other part while listening along to the first. Moreover, you can record two parts separately—for example, the left- and right-hand parts, or record two Voices in succession to make a complete song and arrangement.
PLAY ALONG WITH A PARTNER – IN THE SAME OCTAVE
This effectively makes the instrument two keyboards in one, letting two players play the same piano sound and octave range side-by-side. This is especially useful when learning with a partner, letting you learn and practice parts together.
Specifications
Width: 1,357 mm [53-7/16″]
Height: 849 mm [33-27/64″] (With music rest raised: 1,003 mm [39-31/64″])
Depth: 422 mm [16-5/8″]
Weight: 42.0 kg (92 lbs., 10 oz.)
Keyboard
Number of Keys: 88
Keyboard Type: GH3 keyboard with synthetic ebony and ivory keytops
Touch Response: Hard / Medium / Soft / Fixed
Pedals
Number of Pedals: 3 (Damper with half-pedal function, Sostenuto, Soft)
Functions: Damper, Sostenuto, Soft
Voices & Sound Engine
Piano Sound: Yamaha CFX concert grand
Key-off Samples: Yes
Smooth Release: Yes
Virtual Resonance Modeling Lite (VRM Lite): Yes
Maximum Polyphony: 192
Number of Voices: 10
Effects & Functions
Reverb: 4 types
Intelligent Acoustic Control (IAC): Yes
Stereophonic Optimizer: Yes
Dual / Layer Mode: Yes
Duo Mode: Yes
Songs & Recording
Preset Songs: 10 voice demos + 50 classics + 303 lesson songs
Recording Capacity: 1 song
Tracks: 2
Data Capacity: Approx. 150 KB/Song (approx. 11,000 notes)
Playback Format: SMF (Format 0, Format 1)
Recording Format: SMF (Format 0)
Controls
Metronome: Yes
Tempo Range: 5 – 280
Transpose: -6 – 0 – +6
Tuning: 414.8 – 466.8 Hz (approx. 0.2 Hz increments)
Connectivity
Headphones: 2 × standard stereo phone jacks
USB to Host: Yes
DC IN: 16 V
Amplification
Amplifiers: 20 W x 2
Speakers: 12 cm × 2
Power
Power Consumption: 13 W (When using PA-300C AC adaptor)
Auto Power Off: Yes
Power Supply: PA-300C
Included Accessories
Owner’s Manual
50 Classical Music Masterpieces Music Book
Online Member Product Registration
Warranty (varies by region)
Bench (varies by region)
Power cord / AC adaptor PA-300C or an equivalent recommended by Yamaha *varies by area.

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