| Rim/Backframe |
Outer is laminated Lauan, Beech, and Walnut. Inner is laminated Lauan and Walnut. Wide tail design (similar to Boston). 22 mm outer rim width, 38 mm inner rim width. |
| Braces/Posts |
Steinway-like radial bracing. 3 braces. |
| Pinblock |
Laminated multi-directional Maple. Thickness: 36 mm. |
| Soundboard |
Solid Spruce. Linear taper. Tapered from 8 mm front to 5 mm back. Vibrating area: 1.11 m2 (1,718 in2) |
| Ribs |
Ribs notched into inner rim (no floating ribs). Ribs made of spruce and staggered/graduated. Number of ribs: 10 |
| Bridges |
Vertically laminated maple base with solid maple cap. |
| Scale |
Designed by Steinway. 16,548 kg (36,405 lb) tension. |
| Plate |
Cast iron, painted with Steinway Gold. |
| Tuning Pins |
Carbon steel nickel coating. |
| Duplex Scales |
Front and rear duplexes Designed by Steinway. |
| Strings |
Roslau wire. Number of sizes of treble strings: 10. Lowest tenor note: 27. Number 1 speaking length: 117 cm (46.2”) |
| Hammers |
Designed by Steinway. Weight of topfelt: 7 kg (15 lb). |
| Action |
Designed by Steinway. Angled whippen heel. All wood (no plastic) for all moving parts. Like Boston: extruded aluminum action rails rosette shape on it. |
| Keys |
Steinway design. Material – Spruce or Basswood. |
| Keybed |
Lauan, Maple, Spruce. |
| Pedals |
Brass. Full Sostenuto. |
| Features |
Slow-fall Fallboard available on most grand models. Fold-down Fallboard Lip available on most grand models. |