The mighty Millennium III action features components made of ABS-Carbon, an incredibly lightweight, rigid composite material that provides a stronger, faster action, with more power, better control, and greater stability than conventional all-wood actions.

The addition of agraffes (K-600 and up) across the lower 51 keys ensures accuracy in string alignment and spacing, to produce greater sound uniformity and enhancing clarity of tone.

Mahogany hammer mouldings are lightweight and extremely responsive. Found on only the finest pianos, mahogany is used for the hammer mouldings on the entire line of K Series Professional Upright Pianos,

The duplex scale enhances harmonics in the treble range by increasing the speaking ability of the string between the bridge pin and hitch pin, adding sympathetic overtones and harmonic richness.

To eliminate warping, a heavy-guage steel angle iron is added to the keyslip. Keys move more freely with virtually no possibility of rubbing or sticking against the keyslip.