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dimensions
Length: 6′ 2″ (188 cm)
Width: 57¾” (147 cm)
Net Weight: 720 lbs (327 kg)
braces
3 solid spruce braces with a volume of 1,387 cu. in. (22,729 cm3); Spruce provides tensile strength with less weight. Maple dowels fasten braces to rim producing a single homogenous foundation upon which is built the entire tonal component. A cast iron treble bell, affixed to rim’s underside at treble bend, holds plate firmly in position by means of a steel bolt. The Steinway & Sons iron wedge anchors brace ends securely to crossblock assuring permanent rim posture.
scale
Overstrung; combination agraffe; Front AND rear duplex.
Tension: 41,888 lbs. (19,000 kg)
ribs
Made from durable, resinous sugar pine to assure strong and constant support of string down-bearing on the soundboard; rib ends are hand-fitted.
tuning pins
Premium blued steel; rust-resistant, nickeled heads
strings
Treble: twelve whole & one-half sizes from high-tensile Swedish steel.
Bass: Swedish steel core wire wound with pure copper.
Longest: Agraffe/bridge: 55⅝” (141 cm)
hammers
Premium wool top felt and under felt; treated to resist insects and moisture. Compression-wired to maintain permanent shape. Hornbeam hammer moldings and shanks.
dampers
Horizontal-cut premium wool for effective dampening with maple heads for endurance.
keys
European spruce, individually weighed-off. Chip-proof, stain-resistant coverings for naturals; slip-proof, adbraded ebonized sharps. Durable Linden wood buttons reinforce keys over balance rail, permitting maximum tonal power with every strike. Longest key: 19” (48.3 cm).
keybed
Made from planks of quarter-sawn spruce. Horizonal and vertical birch planks present a vented system for humidity escapement. Crowned and reverse-crowned action frame gives a snug fit, intensifies key movement and prevents “slapping” during heavy playing. Large maple dowel ends provide a solid mount for adjustable brass touch-regulating screws. Thickness: 1¾” (4.45 cm).
pedals
Heavy, solid brass. Soft, sustaining, and full sostenuto.
