Knight K15 upright piano
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Knight K15 upright piano
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Knight K15 upright piano
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Knight K15 upright piano
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Knight K15 upright piano
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Knight K15 upright piano
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Width: 140 cm
Depth: 55 cm
Height: 97 cm

Additional information
Serial Number: 51796

Age: 1973


• Free UK ground floor delivery*

• Complimentary tuning in your home

• 5 year structural and mechanical guarantee
• Brand-new adjustable bench to match.

See The Sykes & Sons Service for full details >>

Price: SOLD


Another K15 is due in stock.

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Knight - K15

Upright Piano

The Knight Company was founded in 1936 by Alfred E. Knight, a man who dedicated his life to producing pianos of exceptional tone and quality. Alfred followed his family's occupation and began his career as an apprentice at just 14 years old. In 1923, at only 24 years old, Alfred was appointed as a junior director at Cremona Ltd, a position he held for 8 years before he left to begin building his own business in 1931.


The Knight Piano Company quickly grew to be one of Britain's most recognised manufacturers of fine, high-quality pianos, which are famous for being extremely well-made, with only top quality materials used in their construction. 


The K15 is one of the most iconic pianos from Knight's range and is widely regarded as one of Alfred's most notable triumphs in piano engineering and design. 

This model became a popular choice because it has a level of sound and performance that can easily rival much larger instruments. 
This achievement is owed to a combination of Knight's own unique and patented designs which enabled the unparalleled utilisation of the piano's dimensions. Knight was able to use a larger soundboard and longer strings than are normally possible in a piano of this size, all while incorporating Knight's own designed drop-action that allows for an identical mechanical geometry found inside of the larger models that Knight produced. 

The strings in the K15 are designed to cross over at a much greater angle than can usually be achieved in an upright piano, so much longer strings can be installed which results in more volume and a better quality of tone. All Knight models in the 'K' range have a Knight-designed, full-perimeter frame which was built on the girder principle. These frames reportedly has twice the strength of frames fitted to the average piano and the extra strength of the frame allowed Knight to dispense the brace bar which is normally found in the treble section of upright pianos. The brace bar is required to pass through a notch in the long bridge which can cause tonal discrepencies in the notes either side. This Knight design claimed to have eliminated those "bad notes" and resulted in a more even tone. The frame is anchored to a four-post quarter-sawn hardwood back, with the soundboard secured between it and the full-perimeter, iron frame. This exceptionally sturdy method ensures superior tuning stability and strength, and is one of the reasons why Knight was considered a standard-bearer in piano manufacturing around the world.


This K15 has been owned by the same family since it was purchased brand new in 1973. It was a treasured part of the family home and has benefited from regular servicing and care throughout its life.

Housed in a beautiful satin teak cabinet, this piano would make a wonderfully eye-catching feature for the right home. This piano also boasts a celeste pedal which allows the player to lower the volume of the piano for more private and discrete playing.

After being lovingly reconditioned and serviced in our workshop, this Knight offers a very responsive and consistently balanced touch that is coupled with a warm, rich tone. Typical of Knight pianos supplied by Sykes & Sons.