The strength of a well-crafted instrument makes the piano one of the most impressive examples of technology, engineering and craftsmanship in the world today. K Series Professional Upright Pianos are designed with tremendous strength to ensure stability of tone and touch over time.
On all K Series models, the soundboard is supported by exceptionally strong multi-layered back posts and our proprietary “matched strength” iron plate. Using state-of-the-art CAD technology, we calibrate the strength and mass of the plate to match the scale design of each individual model. This philosophy ensures a sturdy, well-balanced back assembly that supports string tension and provides a solid foundation for outstanding tone.
Plate bolts strengthen the connection between the plate and back posts for greater stability.
The piano’s keybed must be strong and stable to support the action assembly and maintain action regulation over years of heavy use. K Series keybeds are made with sturdy laminated hardwoods and reinforced by rear braces on the iron frame that help to ensure stable placement and add rigidity to prevent energy loss.
A piano’s keyslip is the long, horizontal piece of wood that covers the front faces of the keys. Because it is long, thin and made of wood, a keyslip can warp or bend with changes in humidity, causing keys to stick. To eliminate this problem, a heavy-gauge steel angle iron is added to prevent warping or bending in any direction. Keys move freely with virtually no possibility of rubbing or sticking against the keyslip.
The Multi-Grip pinblock on all K Series pianos is multi-laminated with a minimum of eleven cross-banded layers of North American hard maple for maximum strength and consistent torque.
K Series tuning pins are made from the finest steel, machine-threaded for maximum bi-directional torque and nickel plated to enhance beauty and provide long-term protection.
The square-tube design of K Series pedal levers makes them stronger than the lower-cost round-tube levers with flattened ends found on many other pianos. In addition, the square shape provides a flat surface for the wing nuts which helps to prevent unwanted noise and enables a more stable pedal adjustment.