About Gp-215 pe
Featuring a maple inner rim and Octagrip™ pinblock, this 7' ½" (215cm)
grand piano is a choice of many institutions and festivals for their
mid-sized performance venues.
Features and Benefits
The Boston piano 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 less string tension.
This reduced string tension allows for a larger, tapered soundboard,
creating longer sustain, and 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.
The Boston grand piano offers a larger soundboard in comparison to
other pianos of the same length, due to its innovative “wide tail”
design. This wider construction of the case means that a 5’ 10” Boston
grand has the same soundboard area as a typical 6’ 2” grand piano,
creating the power, richness, and feel of playing a much larger piano.
Each Boston piano soundboard is crafted of Sitka spruce, long proven
to be the most resonant material available. Boston soundboards are also
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.
Fine veneers underlie the elegance of the Boston pianos — available
in walnut and mahogany satin or polished finishes, as an alternative to
the classic ebonized — all designed to delight the eye and enhance the
hard rock maple (Acer Saccharum) inner rim. Laminated Philippine
mahogany outer rim. Continuous bent rim. 15 outer rim laminations, 17
inner rim laminations. 29mm (1 1/8”) outer rim width, 38mm (1 ½”) inner
braces of laminated Philippine mahogany provide stronger triangular
support than parallel designs. This rigid support increases tuning
stability, soundboard, crown retention, and longer piano life. 4 radial
braces + 3 horizontal braces.
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.
and straight-grain solid (not laminated) Sitka spruce. Minimum 3 annual
growth rings per cm (minimum 8 per inch). Tapered from treble to bass,
which allows a greater freedom of movement thereby creating a richer
and more lasting tonal response. Tapered from 9 mm to 7 mm. Vibrating
area: 1.70 m2 (2,625 in2)
from durable spruce to assure strong and constant support of the
strings bearing down on the soundboard. Ribs are fully let-in to the
inner rim to support the important soundboard crown and prevent the
piano from losing its tone. Number of ribs: 13
Vertically laminated (alternating mahogany and maple) with a solid
maple cap, 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.
combination agraffe; with front and rear duplex. Lower tension scale
for longer sustaining tone and longer life of the whole piano. 18,017
kg (39,720 lb) tension.
||Cast from grey iron, bronze-painted and lacquered. Vacuum cast.
||Nickel-plated steel, cut threaded.
Highest grade steel (in half size increments). Number of sizes: 16.
Lowest tenor note: 21. Mapes Bass Strings: Steel core wire wound with
solid copper. Made by Mapes in Tennessee, U.S.A. Number 1 speaking
length: 163.6 cm (64.4”)
wool topfelt over premium wool underfelt. Weight of topfelt: 9.8 kg
(21.6 lb). Compression-wired to retain permanent shape. Mahogany
moldings. Tapered 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
maple (all wood, no plastic) for all moving parts. Steinway
profile-shaped flanges, extruded aluminum action rails for increased
stability and less frequent regulation. Steinway action geometry
provides superior touch.
spruce, individually balanced and weighted. Synthetic ivory and ebony
key covers. New synthetic ebony has ebony-like surface texture and
appearance that absorbs perspiration from the fingers. The fine
synthetic ivory of the white keys has the same properties of friction,
porosity, conductivity, and appearance as ivory.
from laminated hardwood faced with spruce. Strong, rugged construction
provides a solid mount for the keyframe and action allowing for precise
and prolonged action regulation. Large maple dowel ends provide a solid
mount for adjustable brass touch-regulating glides. Keybed thickness is
||Spruce with hardwood inserts in the balance rail and front rail for added stability.
||Heavy solid brass castings. Soft, full sostenuto and damper (sustaining).
desk positions: 4. Fallboard: Soft fall fallboard. Casters: Heavy-duty
double-wheel solid brass casters. Locks: Fallboard and top locks.
PropSticks: Double top prop sticks.|
||102 cm (40”)
||215 cm (7’ 1”)
||155 cm (61”)
||404 kg (889 lb)
or white finishes over an outer substrate of phenolic resin. Natural
finishes over veneers of American Walnut and African Mahogany.
||Polyester (polished finishes) or polyurethane or nitrocellulose laquer (satin finishes)
||Solid brass: polished and lacquered.