Fluororesin-sleeved octave rocker
Lost motion is eliminated and smooth octave-key action is ensured by rounding the octave rocker ends and Fluororesin-coating the receiving sleeves they contact.
C#-Bb table key linkages
The seesaw linkage between the C# and Bb table keys facilitates faster, smoother fingering technique.
C#-B table key linkages
The additional slider mechanism between the C# and B table keys is a proprietary Yanagisawa design that allows smoother finger transitions between these notes.
Adjustable vibration-damping bar
This enhancement dampens sympathetic vibrations in the right-hand F# key, thus stabilizing the production of notes in the lower register.
Genuine mother-of-pearl touches
Indented mother-of-pearl key touches are attractive, afford the fingertips a more natural fit and feel, and are less slippery than plastic touches when wet.
Palm-key reinforcement plate; Integrated post-rib construction
Primarily intended to add strength to the soldered interface between key posts and the body, the palm-key reinforcement plate and stack-post ribs also protect the body from damage should a post receive an accidental blow They also add mid-range resonance, acoustic depth and projection across all registers, and exceptional tonal stability.
Metal thumb hook & rest
Designed to make minimal point contact with the body, the thumb hook enables the instrument to resonate more freely while the brass thumb rest allows for smoother response and improved tonal balance.
Pointed pivot screws
For the utmost in precision and reliability, pointed pivot screws ensure that center arms or hinge rods are an exact fit.
Sealed, waterproof pads
Airtight pads facilitate balanced, leak-free play while quality waterproofing extends pad service life.
Metal tone boosters
Pads equipped with metal tone boosters enhance tonal clarity and ensure excellent response at any volume, from pianissimo to fortissimo.
Blued-steel needle springs are more elastic than the stainless-steel variety, offer faster action and render a better command of difficult passages.
Dual arms prevent larger key cups from twisting or flexing under pressure and also improve durability.
The tri-point bell-bow brace ensures structural stability and rigidity and enhances resonance even at fortissimo levels.