​Kawai K-400 Professional Upright Piano

Distinctive Design with True Professional Performance

The Kawai K-400 is a 48" professional upright piano that stands apart from others in its class through a thoughtful combination of design innovation, tonal power, and long-term playability. As part of the respected K Series, it is built to meet the demands of serious students, teachers, and professional musicians who require both expressive control and dependable performance.
One of its most distinctive features is the grand style music rack, designed to comfortably hold oversized scores while positioning music at an optimal eye level. Combined with Kawai’s renowned Millennium III Upright Action and a carefully crafted solid spruce soundboard, the K-400 delivers a refined playing experience with exceptional responsiveness and tonal depth.

Key Features and Benefits
• Millennium III Upright Action with ABS Carbon
Provides outstanding responsiveness, control, and consistency using lightweight carbon composite components for enhanced speed and durability.

• Grand Style Music Rack
Holds large sheet music and scores while positioning them at eye level, improving comfort and visibility for both practice and performance.

• Solid Spruce Tapered Soundboard
Engineered for optimal resonance and tonal balance, delivering a rich, expressive sound with strong projection and clarity.

• Extended 48" Upright Design
Offers greater tonal depth and power while maintaining a practical footprint for studios, homes, and teaching environments.

• Underfelted Hammers
Produce a warm, balanced tone with excellent dynamic control across the keyboard.

• Five Back Post Construction
Strengthens the piano’s structural integrity for improved stability, durability, and long-term tuning reliability.

• Steel Reinforced Keybed and Keyslip
Ensures a stable and consistent playing foundation for accurate touch and control.

• New England Style Soft Fall Fallboard
Provides a smooth, controlled closing action for added safety and convenience.

• Double Brass Front Casters
Enhance stability while allowing secure and controlled movement when needed.

• Responsive Professional Touch
Designed for precise articulation and expressive nuance, supporting advanced repertoire and technique development.

• Elegant Upright Cabinet Design
A refined aesthetic that complements both modern and traditional interior spaces.

Specifications
Height 48" (122 cm)
Width 59" (149 cm)
Depth 24" (61 cm)
Weight 507 lbs (230 kg)
Key Surfaces Acrylic white keys, Phenol black keys
Action Millennium III Upright Action with ABS Carbon
Soundboard Solid Spruce (Tapered)
String Length 47.2" speaking length (No. 1 string)
Contour Bars 2
Back Posts 5
Casters Double Brass front casters
Fallboard New England Style Soft Fall System
Music Rack Grand style music rack

The Kawai K-400 delivers a distinctive blend of professional performance, refined design, and long term reliability. With its expressive touch, rich tonal character, and musician focused features, it stands as a versatile upright piano that truly sets itself apart in its class.