Backframe/Posts
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Staggered spruce backposts (5). Total CSA: 500 cm2 (77.5 in2). Thickness of post: 10 cm. Width of post: 10 cm.
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Pinblock
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Laminated multi-directional Maple. Thickness: 35 mm.
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Soundboard
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Solid Spruce. Linear taper. Tapered from 9 mm top to 7 mm bottom. Vibrating area: 1.26 m2 (1,948 in2)
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Ribs
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Ribs notched into inner rim (no floating ribs). Ribs made of spruce and staggered/graduated. Number of ribs: 11
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Bridges
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Vertically laminated maple base with solid maple cap.
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Scale
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Designed by Steinway. 16,695 kg (36,730 lb) tension.
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Plate
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Cast iron, painted with Steinway Gold.
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Tuning Pins
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Carbon steel nickel coating.
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Strings
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Roslau wire. Number of sizes of treble strings: 14. Lowest tenor note: 27. Number 1 speaking length: 114 cm (44.9”)
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Hammers
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Specified by Steinway. Weight of topfelt: 7 kg (15 lb).
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Action
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All wood (no plastic) for all moving parts. Aluminum action rails.
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Keys
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Steinway design. Material – Spruce or Basswood.
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Keybed
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Lauan, Maple, Spruce.
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Pedals
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Brass. Muffler.
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Features
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All wood Back construction (no MDF except in cabinet parts). Solid filler blocks in backframe (near top). Backposts are large and staggered.
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