KAYSERBURG FEATURES
Hammers
Kayserburg’s commitment to creating the world’s finest pianos led them to develop the PR2.0 hammer design. The design incorporates imported German felt, which is carefully formed over select hardwood cores and fastened to the cores using T-shaped steel wires, resulting in maximum resilience and structural integrity. The hammer shanks, which adopt the grand piano concept for the ultimate balancing, are also improved. Furthermore, each hammer undergoes a minimum of five inspections to earn quality control certification.
Acclimatized For The World
Our state-of-the-art kilns expertly cure the woods to specific moisture contents before and after drying, which minimizes the natural tendency for the wood to expand or contract with changes in humidity. During the crafting process of each Kayserburg piano, we meticulously control the humidity and temperature levels using dehumidifier and air-conditioning systems. This ensures a consistent environment throughout the production line.
Double Action Rest Rail
The hammer rest rail of the Kayserburg vertical pianos rotates to reduce the distance of the hammer strike, resulting in lower volume and sustain. The action of the piano has been enhanced by doubling the rest rail from a single one, allowing for greater precision in the hammer shank movement. This upgrade provides more accurate control for both volume and sustain.
Jack – Limited Rail
Kayserburg has introduced a Limited Rail device to complement the Double Action Rest Rail. This feature allows for rapid reset of the Jack during the playing of high-speed passages that require continuous hammer movement, resulting in an enhanced performance.
Wet Sand Cast Plates
The plate of the piano is responsible for bearing the immense tension exerted by its strings. Kayserburg plates, like those of the world’s finest pianos, are constructed using high-quality pig iron, formed in wet sand molds, CNC machined, and fully finished. In contrast to plates made with vacuum processing, those made with wet sand casting are stronger and do not generate undesirable harmonic feedback.
Bridges
The bridge of a piano must be highly robust, inflexible, and resonant to precisely transfer the vibration of each string to the soundboard. Kayserburg pianos utilize vertically laminated Beech and Rosewood bridges that enhance rigidity, along with a sturdy beech cap. The bridge is securely fastened to the soundboard through gluing, dowelling, and screwing.
Silver Plated Regulating Front Caster
By allowing for individual adjustments based on the surface it sits on, the front casters of Kayserburg pianos can ensure that the instrument remains perfectly stable and level at all times.
Asymmetric Back Post Structure
Kayserburg vertical pianos are constructed with an asymmetric back post structure to balance the bearing capacity of each sound section, as the string tension varies. The inner rim of solid beech and solid spruce backposts provide added stability and strength, resulting in a warm, clean, and distinct sound.
Ribs
The spruce ribs chosen for Kayserburg pianos are quarter-sawn and carefully graded in terms of both width and thickness. They are then feathered to enhance flexibility and frequency response before being glued and hand-doweled onto the soundboard. Finally, the ribs are mortised into the rim for added stability.
Keys
Kayserburg pianos feature keys made of solid spruce with straight grains, which offer lightweight, superior strength, and precise transfer of the pianist’s intentions to the hammer. The sharps are made of genuine ebony wood, while the white keys are covered in Ivolan®, an eco-friendly ivory substitute that has a gentle gripping surface for a more natural feel and easier control. Each key is individually weighted for a uniform touch. The balance rail pin supports the key, while a solid hardwood key button and insert ensure stability during intense playing. The pins are made of solid brass to provide stability and produce noise-free sound. The keybed is built with solid European spruce in a butcher block configuration to resist warping or movement.
Rim & Beam Construction
The outer rims of Kayserburg grand pianos are constructed using maple while the inner rims are made from beech. Each beam is meticulously crafted from the highest-quality solid European spruce and is attached to the rim using mortise and dowels, rather than screws, to ensure long-lasting structural integrity. Maple and beech are both dense hardwoods commonly used in the construction of high-end grand piano rims due to their ability to produce a warm and rich tone with prolonged sustain.
Tapered Soundboards
To achieve better sustain and wider dynamic range, Kayserburg pianos use tapered soundboards made entirely from high-quality, quarter-sawn, solid spruce sourced from various remote regions in Europe, ranging from Siberia to the mountains of Central Europe. These soundboards undergo several years of special seasoning and are then handcrafted to achieve a precise crown, or natural bowing.
Cut-Thread Tuning Pins
The tuning pins used in Kayserburg pianos are not stamped but are instead nickel-plated and have cut threads. This approach provides greater precision and control over the tuning process and results in longer-lasting tuning. The pins are secured into a block constructed of cross-laminated, quarter-sawn maple or beech, which offers maximum resistance to the tuning pin thread.
Strings
Kayserburg employs only the highest quality materials, including Röslau strings imported from Germany. These strings feature solid surgical-grade steel treble strings and bass strings that are hand-wound from solid copper for exceptional sound quality.
