Dimensions

Height 52″ (132 cm) Width 60 3/4″ (154 cm) Depth 26 3/8″ (67 cm) Net Weight 600 pounds (273 kg)

Rim

Back Frame: Solid birch mortised foot-piece. Solid birch soundboard lining. Grand-type maple laminated closing rim; unequaled vertical strength and stability.

Braces

Posts: 5 full-length tapered solid spruce braces with a volume of 3,600 cu. in. (58,993cm3): assures that backframe will remain straight, promoting stable and consistent tuning. Strategically positioned with bottom ends tenoned into birch foot-piece for positive vertical alignment. Spruce fill-blocks between posts at top of backframe capped with solid birch backing board for positive horizontal alignment.

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 into their mounting surfaces virtually locking in the important soundboard crown.

Scale

Overstrung; twenty-six note bass/tenor break. Treble duplex. Tension: 37,500 lbs. (16,875 kg)

Plate

Sturdy gray iron; filled, CNC-milled, and sealed; bronzed and lacquered.

Tuning Pins

Premium blued steel with rust-resistant, nickeled heads.

Strings

Treble: Ten whole & one-half sizes from high-tensile Swedish steel. Bass: Swedish steel core wire wound with pure copper. Longest, pressure bar/bridge: 46 3/8″ (118 cm)

Hammers

Premium wool top felt over premium wool under felt; treated to resist insects and moisture. Compression-wired to retain permanent shape. Hard rock maple hammer moldings and shanks.

Dampers

Vertical-cut premium wool for effective dampening. Hornbeam heads for endurance.

Action

White, quarter-sawn hornbeam parts are bushed with specially treated wool action cloth for freedom from friction. Parts are anchored in hard maple rails. Dependable, Direct-Blow design permits ALL parts of the action to lie above the brass capstan screws.

Keys

European spruce, individually weighed-off. Chip-proof, stain-resistant coverings for naturals; slip-proof, delicately abraded ebonized sharps. Tough, durable Linden wood buttons reinforce keys over balance rail permitting maximum tonal power with every strike. Longest: 16 1/8″ (40.9 cm)

Keybed

Made from planks of stable, quarter-sawn poplar. Horizontal planks are freely mortised together, while their ends are permanently mortised into vertical planks made of birch, presenting a vented system for humidity escapement while allowing for necessary expansion and contraction. Hand-milled to be flat and true correlating with keyframe for snug fit. Strong, rugged construction provides a solid mount for keyframe and action allowing for precise and prolonged action regulation. Thickness: 1 3/4″ (4.45 cm)

Pedals

Heavy, solid brass. Soft, sustaining, and full sostenuto.

Soundboard

Created like the soundboard of violins to give a free and even response throughout the entire scale, the Traditional K-52’s soundboard is so constructed as to be 8 mm thick in the center and tapered to 5 mm as it approaches the rim and outer case before being double crowned. This design permits complete freedom of movement, while acting as a homogenous unit to displace a greater amount of air, thereby creating a richer and more lasting tonal response. Close-grained, quarter-sawn Sitka spruce, a wood having unusual stability and vibrance under stress and vibration, is used exclusively for the soundboard.

Bridges

Treble: Hard rock maple vertical laminations capped with solid hard rock maple; planed to prescribed height, graphite coated, drilled, and notched by hand for precise individual string bearing. Design defies splitting. Bass: Rock maple base cantilevered at angle for maximum resistance to string pressure. Maple doweled, glued and screwed to soundboard.

Pinblock

Hexagrip patented design; 7 laminations of quartered hardrock maple stock. Grain symmetrically distributed at successive angles of 45°, 90°, employing grain direction uniformly around the circumference of the tuning pin to provide the ultimate in pin grippage. As a result of this exclusive design, the tuning pin has smoother movement under torque, a more uniform retaining action for solid setting, and a piano will hold its tuning longer.

Furniture

Ebonized or Crown Jewel Collection Veneer

Panel Stock

Quarter-sawn poplar corewood cross banded and face veneered.

Solids

Ebonized or veneered birch, mahogany, walnut.

Legs

Ebonized mahogany, genuine specie.

Finish

Heavy full-bodied black or clear lacquer (satin), hand-rubbed.

Hardware

Solid brass; polished & lacquered, or chrome or nickel plated.