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Re: 買琴問題
For more details, you should go to their web site.
Copied from Yamaha:
Long a leading choice for educational institutions, professional musicians and discriminating home pianists, Yamaha U Series uprights have been redesigned and refined to deliver more impressive performance than ever.
Distinctive 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 backpost 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, allow the soundboard to vibrate more freely, improving the depth and character of bass and mid-range tones.
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.
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