Sykes & Sons

The Knight Piano Company was established in 1936 and quickly grew to become one of Britain’s most recognised manufacturers of fine, high-quality pianos, known for their robust construction and the consistent use of carefully selected materials throughout.

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The K10 is one of the larger models from Knight’s range and is widely regarded as one of the most capable upright designs produced in the UK. This is owed to a combination of Knight’s own patented designs, which enabled a highly efficient use of the piano’s internal dimensions.

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All models in the ‘K’ range have a full-perimeter frame, built on the girder principle from heavy-duty cast iron. These frames were developed to maximise string length, provide exceptional rigidity, and enable a more considered bridge position on the soundboard, contributing to an evenness of tone and volume across the keyboard.

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In the K10, the strings cross at a steeper angle than is typically achievable in an upright of this size. This increased length plays a central role in the piano’s ability to produce a level of tone and volume more commonly associated with larger instruments. It also permits the bass bridge to sit further from the edge of the soundboard, improving the efficiency with which energy is transferred and amplified.

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Engineers also dispensed with the brace bar commonly found in the treble section of many upright pianos, a decision made possible by the inherent strength of the frame. In conventional designs, this brace requires an interruption in the bridge, which can introduce inconsistencies in tone. Its removal allows the bridge to remain uninterrupted, supporting a more even tonal response across the full register of the instrument.

 

The soundboards in the K range were produced from straight-grained spruce, selected from the northern slopes of European mountain ranges for its uniformity, strength, and elasticity. The long, regular growing conditions of the Southern Carpathians produce timber with straight grain, minimal knots, and consistent growth rings, giving the material the density and resilience required for the soundboard. The spruce was air-seasoned and kiln-dried at the Knight factory, before being finished in a moisture-resistant treatment that both protects the material and supports its tonal function.

 

The frame is anchored to a four-post, quarter-sawn hardwood back, with the soundboard secured between. This construction provides a high degree of structural integrity and contributes to the long-term stability for which Knight instruments are known.

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Cabinet construction was approached with the same level of care, with case components formed from heavily laminated, cross-grained timber and finished in hand-selected exotic hardwood veneers, applied with precision using high-quality adhesives. In this example, the ‘Exotic’ cabinet is defined by its strong horizontal emphasis and gently softened edges, giving the instrument a composed, architectural presence without reliance on decorative detail.

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By the mid-1970s, this design had reached a mature and highly resolved form. Instruments from this period often present with a quiet visual restraint, while offering a level of musical capacity that becomes immediately apparent in use. There is a depth and authority here that reveals itself quickly under the hands, with a bass that carries real presence, a middle register that remains full and supportive, and a treble that retains clarity without hardness.

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The instrument offered here is a 1976 example that has spent its entire life within a single private family home, where it served as a central instrument across generations.

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The cabinet has been carefully enhanced to draw out the inherent beauty of the teak, whose straight, well-defined grain carries a natural warmth and variation across the surface of the instrument. A blended oil finish enriches this character while maintaining a breathable, natural surface, allowing the material to behave as intended and the quality of the timber to remain clearly expressed.

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In our workshop, the mechanical relationships that govern responsiveness and tactile control have been restored and refined, allowing the action to move with consistency and ease under the player’s hands. The result is a touch that remains stable and dependable, capable of supporting both developing and more advanced pianists with equal confidence.

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Voicing has been approached with restraint, allowing the natural character of the instrument to emerge. There is a clear sense of power retained within the scale, now brought into a more even and controlled balance across the keyboard to support a wide range of repertoire.

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Following preparation in our workshop, this Knight K10 presents as a confident and capable upright, offering projection and long-term stability for which these instruments have long been respected.