The world's best value upright piano just got better!
The U1J was designed based on Yamaha’s acclaimed U series upright acoustic piano line. Complementing the U series’ excellent tonal characteristics with exterior refinements, it features a well-polished finish that maintains the beauty of the instrument over a lifetime.
Thanks to comprehensive redesign, these world-standard instruments are better than ever, with numerous advances in materials and construction. Refined scale designs and components improve tonal performance, while other modifications enhance strength and durability. Extra-wide music desks provide plenty of room for sheet music. And the top-of-the-line sets extraordinary standards of elegance and excellence, incorporating concepts adapted from Yamaha grand pianos.
What is SILENT Piano™?

When the SILENT Piano™ function is activated, the hammers will no longer hit the strings and instead, a highly sophisticated sensor-technology captures all movements of the keys and sends them to the digital tone module. Play a real acoustic piano with headphones at any time, day or night without being disturbed or disturbing others. The Yamaha Silencing System is unsurpassed, allowing 24hr practice as well as possessing many other features including a range of pre-installed sounds, being able to record your own performances or connecting mobile devices to use the latest Apps.
Two World-Renowned Piano Sounds

You can play SILENT Piano™ SC2 type with the voices of CFX, Yamaha’s finest concert grand piano, and Bösendorfer’s legendary Imperial. All 88 keys are sampled individually. As Yamaha’s flagship grand piano, the majestic CFX boasts a wide palette of tonal colors, from sparkling high notes to powerful bass tones. The legendary Bösendorfer, meanwhile, is renowned for its sonorous and rich Viennese sound.
10 various voices
SILENT Piano™ SC2 type offers total 10 pre-installed sounds such as electric pianos, harpsichord, and organs, allowing you to select the ideal voice to match your preferred musical genre.
Rich resonance and subtle accurate reproduction
CFX Binaural Sampling

Yamaha’s advanced binaural sampling technology uses samples from the CFX, Yamaha’s acclaimed concert grand piano, recorded with specialized microphones that capture locational information and other nuances discerned by the human ear. The resulting sound is so natural, so enveloping, that you’ll soon forget you’re even wearing headphones at all.
VRM physical modeling—the distinctive reverberation generated by the entire body of a concert grand piano

In a grand piano, sound resonates throughout the body of the instrument, producing a rich reverberation that envelops the listener in sound. This phenomena is reproduced perfectly through enhanced Virtual Resonance Modeling (VRM). The original VRM calculates the various states of the strings for each of the 88 notes on the keyboard, from one instant to the next, and timing and depth of damper pedals pressed. The enhanced VRM now also calculates aliquot resonance in the upper octaves, and the full resonance of the soundboard, rim, and frame. This technology allows for vivid, bright, richly-varied expression that reflects the limitless number of factors inherent in piano performance.
Stereophonic Optimizer (Piano Voices other than CFX Grand)
Stereophonic Optimizer is an effect which reproduces the natural sound distance, like with the sound of Binaural Sampling, even though you are listening to it on headphones. When one of the Piano Voices other than CFX Grand is selected, the Stereophonic Optimizer is enabled.
Smooth Release-From staccato to legato, superbly expressive sound that responds to the player’s touch

Featuring Yamaha Smooth Release technology, SILENT Piano™ SC2 type offers the crisp tone heard when playing staccato as well as the lingering sound produced by releasing the keys more. This provides finely-nuanced response to the pianist’s playing.
Key-Off samples
The moment a pianist’s fingers are lifted from the keys of a grand piano, subtle changes occur in the instrument’s tone as the damper is lowered onto the strings to mute its sound. Key-Off samples features actual recordings of these changes, offering a faithful reproduction of the most subtle changes in the piano’s sound, allowing for a more realistic performance.
Unique Yamaha technology retains the all-important touch of the piano
Key sensors

Under each of the 88 keys is a Yamaha-unique continuous-detection grey-scale shutter key sensor. These sensors detect the movement of the keys continually, allowing natural musical expression even when the piano is in SILENT Piano™ function. Since they do not come into contact with the keys, these sensors do not affect the feel of the keyboard in any way.
Quick escape system

Grand piano with SILENT Piano™ SC2 type features a quick escape system that allows the sound muting mechanism to be fitted to a grand piano without sacrificing any of the playability or musical expression demanded of such instruments in an acoustic performance. This system allows optimal separation to be obtained between the hammers and strings by adjusting the distance between the hammers and strings, ensuring that the feel of the keyboard stays in the best possible condition whether playing acoustically or with the sound muted.
General functions
Smart Pianist App

The smart device app “Smart Pianist” (available as a free download) enables you to use the functions such as selecting Voices, controlling the metronome intuitively with the visualized interface, or display the score on your smart device.
The UD-WL01 USB Wireless LAN Adaptor (sold separately) is required to use Smart Pianist over a wireless connection.
Sophisticated & simple design of the control panel

The control unit has been given a sophisticated design that unobtrusively blends with the piano itself. Moreover, the simple controllers allow you to operate the instrument easily.

For Polished White finished piano, the white colored unit will be installed.
Connection terminals

The USB TO HOST terminal allows you to connect to a computer or portable device and record high-quality audio without the need for an additional interface. AUX IN allows listening the sound from the external devices (sound source modules and music players).
Bulit-in recording and play back functions

SILENT Piano™ SC2 type can record one song in the internal memory. Additionally, connecting commercially available USB memory to the unit allows you save recording data, and play back songs.
Headphones

Simple and compact headphones that come with SILENT Piano™ SC2 type let you enjoy professional-grade sound quality.
Metronome
SILENT Piano™ SC2 type has a built-in metronome that can be used in SILENT Piano™ function so that players can listen to precise rhythm while they play.
SPRUCE SOUNDBOARD
At the Yamaha lumber mill and wood processing facility, the finest spruce is quarter sawn; and less than 10% of the total is selected and reserved for Yamaha piano soundboards. Solid spruce, rather than laminated spruce or poplar, is the choice in all fine pianos for the best amplification of sound, best tone and sustain.
SEASONED FOR DESTINATION
Yamaha specifically seasons this piano for the Australian market using a proprietary technology. The tuning stability, finish and overall musical integrity are enhanced over the long life expected of a fine piano.
TUNING PINS
Made in-house at Yamaha, Yamaha tuning pins are made to exacting specifications to ensure stability and durability.
PINBLOCK
Yamaha pinblocks are made in-house to ensure that correct materials and procedures are used. This is vital for long term tuning stability.
SPRUCE KEYS
Yamaha uses Spruce for the keys on all models of pianos. Spruce is very light and possesses a very high ratio of strength to weight. It is ideal for key construction, even though its cost is greater than either sugar pine or bass wood. Yamaha keyboards respond quickly providing fast repetition for the most intricate piece of music. Yamaha keyboards withstand heavy use over years of fortissimo passages.
V-PRO PLATE
Yamaha uses V-Pro (Vacuum Shield Mould Process) in casting the iron frame (plate). V-Pro plates are stronger and visually more appealing. Critical dimensions are produced more accurately than before.
METAL ACTION RAILS
Yamaha engineering developed a unique Extruded Aluminum Alloy Action Rail (bearing a Yamaha patent) that is one of the best innovations for improving a piano action in the last 100 years. The usual fluctuations in wood rails that effect touch, caused by periodic weather changes, are eliminated allowing stable, long-lasting action regulation.
BALANCED ACTION
Each key of a Yamaha piano is individually tested and measured for the corrections needed to obtain uniform “down weight” pressure. Yamaha actions play correctly and uniformly. This balancing helps ensure a lifetime of superior touch and control across the keyboard.
UNIFORM KEY TRAVEL
Yamaha designs all grand and vertical pianos to have the same key travel. Regardless of size, type or model of Yamaha piano, the keyboards will always feel the same.
FINISHES
Polished Ebony, Satin Ebony, Polished American Walnut, Satin American Walnut, Polished Mahogany, Polished White.
Main Features
- 121cm tall
- Made in Japan
- Advanced Scale Design
- Redesigned Hammers
- Soft-Close Fallboard
- Cut thread tuning pins, made in-house at Yamaha
- Pinblock made in-house at Yamaha
- Solid spruce soundboard and ribs
- Solid copper wound bass strings
- Hard maple bridges
- Aluminium alloy action rails
- Spruce keys with hardwood buttons
- Mute pedal
- Yamaha designed hammers with underfelt
- Polyester finish
- Vacuum Shield Mould Process (V-Pro) plate
- Single caster
- Seasoned for Australian climate