Steinway & Sons Model D Concert Grand Piano

Steinway & Sons Model D - acoustic grand piano designed for the concert stage

Steinway & Sons Model D is a full-size concert grand piano. With a length of 274 cm, this model is designed for large concert halls, philharmonic stages, professional recording studios, and the highest level of piano performance. Its wide dynamic range, powerful projecting tone, and keyboard that translates the finest nuances of touch into audible tonal changes provide complete control over complex repertoire.

Sound and resonance structure

The Model D's Diaphragmatic Soundboard is crafted from selected, quarter-sawn Sitka spruce. The thickness of the board gradually tapers from approximately 9 mm at the center to 6 mm at the edges; the double-crowned structure helps in the efficient dispersion of energy across the surface. Five supports made of sugar pine are hand-fitted to the soundboard. The result is a consistent tone across the instrument's registers, a long decay, and a rich harmonic spectrum clearly audible in large spaces.

Rim, string system, and stability

The continuous bent rim is crafted from 17 layers of hard rock maple and is approximately 3¼ inches thick. The overstrung string arrangement, combined agraffe system, and front and back duplex scales support the clarity of sound and richness of overtones. Treble strings are made of high-tensile Swedish steel, while bass strings are wound with pure copper; the longest string is 201 cm. Vertically laminated hard-wood bridges are topped with solid maple caps and are hand-fitted for precise seating.

Action and performance control

The keys, made of European spruce, are individually balanced; the longest key is 62.2 cm. Premium wool-felt hammers and a precisely crafted action provide a fast, controllable response from pianissimo nuances to powerful fortissimo. The Hexagrip pinblock, made of seven layers of hard rock maple, maintains tuning stability. The bell-quality cast iron frame, produced in the Steinway foundry, reliably supports the high string tension.

Key features

• 88-key full-size concert grand piano
• Diaphragmatic Soundboard, Sitka spruce
• 17-layer continuous bent hard rock maple rim
• Overstrung string system with front and back duplex scales
• Hexagrip 7-layer pinblock
• Premium wool-felt hammers
• Three solid brass pedals with soft, sustain, and full sostenuto functions

Dimensions

The Steinway Model D is the flagship acoustic grand piano designed for concert pianists and professional venues that demand maximum dynamic reserve, tonal diversity, and stage projection across all styles of repertoire.