Diapson Mahogany 506S Upright Piano with One Year Warranty

Kawai 506S / Diapason 506S Upright Piano
Build & Design
Type: Studio upright piano, commonly marketed as Diapason 506S (built by Kawai)
Finish: Typically Satin or Polished Mahogany—elegant and classic appearance 
Dimensions & Physical Specs
Height: ~44.5 inches (113 cm), offering a robust tonal presence and resonance 
Width: ~59 inches (150 cm)
Depth: ~24 inches (61 cm)
Weight: Approx. 424 lbs (192 kg) 
Structural Features
Soundboard: Solid spruce, with a generous soundboard area (~2,015 sq. in.) allowing for rich, full tonal quality 
Ribs: 9 ribs enhancing structural integrity and sound projection 
Back Posts: 5 laminated back posts, providing stability and durability to the piano’s frame 
Action: Ultra-Responsive Direct Blow action—known for its expressive control and consistent touch 
Sound and Playability
Praised for a mellow, rich, and balanced tone across registers, with responsive and dependable touch 
The middle (mute/ celeste) pedal functionality allows for softer, more nuanced practice and performance
Condition & Reviews
Often found in very good used condition, with excellent internal components and minimal wear—hammers, keys, and action mechanisms typically well-preserved 
Noted cosmetic wear such as minor cabinet dings or slight hammer backing fraying—considered minor and easily serviceable