Yamaha U Series

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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.

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Advanced Scale Design

Refinements in all elements of sound production have given today’s U series a richer , more resonant voice with evenly balanced timbre across the entire keyboard.

Soundboard and Frame

Special rib configurations add strength to the soundboard, while back post and other advances further enhance rigidity, resonance and structural stability.

Redesigned Hammers

U Series hammers use materials specifically selected for each model to provide optimum tone production, response and long-term durability.

Soft-Close Fallboard

A damping mechanism, formerly used only in grand pianos, prevents the fallboard from dropping abruptly onto the keyboard, guarding against accidental injury or damage.


Speaking Length of #1 bass string 46.8″ 47.5″
Hammer Weight 22 lbs. 22 lbs.
Soundboard Dimension 2137 square inches 2369 square inches
Material Spruce Spruce
Back Post Material Spruce Spruce
V-Pro Plate Yes Yes
Bridge Material Hard Maple Hard Maple
Pinblock Material Hard Maple Hard Maple
Tuning Pins Cut thread Cut thread
Center Pedal Mute Mute
Metal Action Rail Yes Yes
Seasoned for Destination Yes Yes
Soft-Close Fallboard Yes Yes
Keyboard Number of Keys 88 keys
88 keys
Pedals Soft Pedal, Mute Pedal, Damper Pedal Soft Pedal, Mute Pedal, Damper Pedal
Finishes Polished Ebony, Satin Ebony, Satin American Walnut, Polished American Walnut, Polished White, Polished Mahogany Polished Ebony, Polished Mahogany
Also available as Disklavier ES Series: U1E3; Silent Series: U1SG Silent Series: U3SG
Height 48″ 52″
Width 60″ 60″
Length 24″ 26″
Weight 502 lbs. 517 lbs.