BOSTON UPRIGHT UP118S BOS

BOSTON UPRIGHT UP118S BOS

BOSTON UPRIGHT UP118S BOS

BOSTON UPRIGHT UP118S BOS

BOSTON UPRIGHT UP118S BOS
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BOSTON UPRIGHT UP118S BOS
Performance Edition

BOS - BLACK OAK SATIN

Dimensions:

Height: 118 cm

Width: 151 cm

Weight: 218 kg

Depth: 58 cm

The Boston UP-118S Performance Edition is imbued with the classic Boston touch and tone and is optimized for any music room — at school or at home.

FEATURES AND BENEFITS
Boston uprights offer the same standards of excellence that characterize all instruments designed by STEINWAY & SONS. A Boston upright will give you the same opportunities to express your musical skill as a grand will.

The Boston upright features a duplex scale, adapted from the famous STEINWAY & SONS design, which adds a harmonic richness that simply can’t be duplicated by other instruments in a similar price range.

In comparison to other pianos, the Boston has lower string tension. This reduced string tension allows for a larger, tapered soundboard, creating longer sustain, and a more singing quality in the tone (as well as longer piano life). A wealth of other engineering enhancements, including optimal placement of ribs, braces, and bridges, also contribute to the Boston’s superior tone and greater stability.

Each Boston piano soundboard is crafted of spruce, long proven to be the most resonant material available. Boston soundboards are solid (not laminated) and precisely tapered, which allows them to vibrate more freely. In conjunction with a number of special technologies — unique patents of STEINWAY & SONS — the result is a powerful, sustained tone.


THE STEINWAY PROMISE
When you purchase a Boston upright, you may trade in the instrument within ten years of the date of purchase to receive 100% of the original purchase price in trade toward a new STEINWAY instrument.

BACKFRAME
Mahogany foot-piece soundboard lining and backboard. Specially-designed grand-type mahogany closing rim; unequaled vertical strength and stability and improved acoustics. Backposts have staggered spacing to enhance tone and provide support where needed.

BRACES/POSTS
Full-length laminated spruce posts assure that the backframe will remain straight and consistent and tuning will remain stable. Spruce fill-blocks between posts at the top and bottom of the backframe, capped with a maple backboard for positive vertical alignment. Solid filler blocks (no hollow spots). 5 posts. Total cross sectional area: 240 cm2 (37.2 in2). Thickness of post: 6 cm (2⅜""). Width of post: 8 cm (3⅛"").

PINBLOCK
Octagrip™ pinblock made of 11 layers of hard rock maple – glued in different grain angles of 60 degrees – affording the tuning pins greater stability under tension and enabling the piano to stay in tune longer.

SOUNDBOARD
Close and straight-grain solid (not laminated) spruce. Minimum 3 annual growth rings per cm (minimum 8 per inch). Tapered from treble to bass, to provide a rich tone in the bass, and a brilliant and crisp tone in the treble, creating a well-balanced and lasting tonal response. Tapered from 9 mm to 8 mm. Vibrating area: 1.11 m2 (1,721 in2). Closing rim evens out the soundboard’s response to all frequencies, eliminating “hot” spots. Emulates shape of grand soundboard.

RIBS
Made from durable spruce to assure strong and constant support of the strings bearing down on the soundboard. Ribs are fully let-in to the liner to support the important soundboard crown and prevent the piano from losing its tone. Number of ribs: 10

BRIDGES
Treble: Solid maple, curved to fit the crown of the soundboard. Bass: Solid maple mounted to cantilevered base. Doweled, glued, and screwed to soundboard. One continuous base and treble bridge.

SCALE
Overstrung: Lower tension scale for longer sustaining tone and longer life of the whole piano. 17,425 kg (38,415 lb) tension.

PLATE
Cast from grey iron, bronze-painted and lacquered. Vacuum cast. Tuning Pins Nickel-plated steel, cut threaded.

HAMMERS
Premium wool topfelt over premium wool underfelt. Weight of topfelt: 9.4 kg (20.8 lb). Compression-wired to retain permanent shape. Mahogany moldings. Hammer-shanks from select resilient maple or horn-beam. Computer-designed pear-shaped hammers with reinforced shoulders result in superior tone, increased durability and greater voicing ability.

ACTION
Solid maple (all wood, no plastic) for all moving parts. Extruded aluminum action rails for increased stability and less frequent regulation. Dependable direct-blow design.

KEYS
Genuine spruce, individually balanced and weighted. Phenolic sharps and acrylate white key covers. Length of key: 34.8 cm (13.7""). Keybed Made from laminated hardwood. Strong, rugged construction provides a solid mount for the keyframe and action allowing for precise and prolonged action regulation. Keybed thickness is 42 mm.

KEYFRAME
Spruce with hardwood inserts in the balance rail and front rail for added stability.

PEDALS
Soft (half-blow), bass sustain, and sustain (damper) pedals.

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