Yamaha Mark III Series manual

Advanced scale design (U5)

Lengthened music stand (U1, U3)

Specially designed hammers

Soft-close fallboard

U Series

A Yamaha Classic, Refined

Yamaha U Series upright pianos have long been a leading choice for educational institutions, professional musicians, and discriminating home pianists. Now, thanks to comprehensive redesign, these Yamaha-standard instruments are better than ever, with substantial refinements in materials, construction, production processes, and overall design. Today’s U1 and U3 models incorporate an advanced scale design that improves tonal performance. A floating support system improves the depth and character of bass and mid-range tones in the U3 and U5 models, while other modifications enhance strength and durability. Incorporating a number of design concepts adapted from Yamaha grand pianos, the U5 model has taken its place at the very top of the U Series line.

Exclusive U Series Features

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 backposts and other advances further enhance rigidity, resonance, and structural stability.

Floating Support System (U3, U5)

A ‘floating’ attachment method, similar to that of grand pianos, allows the soundboard to vibrate more freely, improving the depth and character of bass and mid-range tones.

Specially Designed 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.