|
Rim/Backframe
|
Mahogany foot-piece soundboard lining and backboard. Specially-designed grand-type mahogany closing rim; unequaled vertical strength and stability and improved acoustics. Backposts have staggered spacing to enhance tone and provide support where needed.
|
|
Braces/Posts
|
Full-length laminated mahogany posts assure that the backframe will remain straight and consistent and tuning will remain stable. Mahogany fill-blocks between posts at the top and bottom of the backframe, capped with a mahogany backboard for positive vertical alignment. Solid filler blocks (no hollow spots). 5 posts. Total cross sectional area: 450 cm2 (69.8 in2). Thickness of post: 9 cm (3 1/2”). Width of post: 10 cm (4”).
|
|
Pinblock
|
Octagrip™ 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.
|
|
Soundboard
|
Close and straight-grain solid (not laminated) Sitka spruce. Minimum 3 annual growth rings per cm (minimum 8 per inch). Tapered from treble to bass, to provide a rich tone in the bass, and a brilliant and crisp tone in the treble, creating a well-balanced and lasting tonal response. Tapered from 9 mm to 7 mm dual tapered. Vibrating area: 1.07 m2 (1,659 in2). Closing rim evens out the soundboard’s response to all frequencies, eliminating “hot” spots. Emulates shape of grand soundboard.
|
|
Ribs
|
Made from durable spruce to assure strong and constant support of the strings bearing down on the soundboard. Ribs are fully let-in to the liner to support the important soundboard crown and prevent the piano from losing its tone. Number of ribs: 11
|
|
Bridges
|
Treble: Solid maple, 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.
|
|
Scale
|
Overstrung: Lower tension scale for longer sustaining tone and longer life of the whole piano. 16,727 kg (36,877 lb) tension.
|
|
Plate
|
Cast from grey iron, bronze-painted and lacquered. Vacuum cast.
|
|
Tuning Pins
|
Nickel-plated steel, cut threaded.
|
|
Strings
|
Treble: Highest grade steel (in half size increments). Number of sizes: 12. Lowest tenor note: 28. Bass: Steel core wire wound with solid copper. Number 1 speaking length: 117.3 cm (46.2”)
|
|
Hammers
|
Premium wool topfelt over premium wool underfelt. Weight of topfelt: 9.4 kg (20.8 lb). Compression-wired to retain permanent shape. Mahogany moldings. 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 voicing ability.
|
|
Action
|
Solid maple (all wood, no plastic) for all moving parts. Extruded aluminum action rails for increased stability and less frequent regulation. Dependable direct-blow design.
|
|
Keys
|
Genuine spruce, individually balanced and weighted. Synthetic ivory and ebony key covers. Length of key: 36.8 cm (14.5”).
|
|
Keybed
|
Made from laminated hardwood. Strong, rugged construction provides a solid mount for the keyframe and action allowing for precise and prolonged action regulation. Keybed thickness is 42 mm.
|
|
Keyframe
|
Spruce with hardwood inserts in the balance rail and front rail for added stability.
|
|
Pedals
|
Heavy solid castings. Soft (half-blow), damper (sustaining), and muffler.
|
|
Other
|
Music desk: Professional music desk. Two-position upper panel for tone escapement and solid music support. Fallboard: Soft fall fallboard. Casters: Solid brass casters. Locks: No locks. PropSticks: Top prop sticks.
|