Introducing the GL10 ATX4 ‘AnyTime’ hybrid grand piano—a perfect blend of classic elegance and cutting-edge digital technology. Drawing on nearly a century of expert piano craftsmanship, the GL10 ATX4 baby grand offers the responsive touch and rich tone that pianists love. With advanced digital features, you can play with headphones for private practice. Experience the harmony of tradition and innovation with the GL10 ATX4 grand piano.

“The elegance of a grand piano.”
The GL-10 offers the same careful attention to detail and quality found in our larger pianos—with a classic “baby grand” profile that will adapt to almost any room.
The Millennium III action
The Millennium III Action is made from ABS-Carbon, a strong and lightweight composite combining carbon fiber with ABS Styran. This durable material allows for lighter action parts without losing strength, resulting in a faster, more powerful, and stable performance than traditional all-wood actions.
Longer keys
Longer keys make playing easier and ensure a consistent feel across the entire surface. Their taller profile and concert-length buttons add rigidity, allowing for better energy transfer and power.
Tapered Soundboard Made of Solid Spruce
The soundboard is vital for a piano, converting string vibrations into a rich sound. Kawai uses high-quality, straight-grained, quarter-sawn solid spruce for the GL series soundboards. Each soundboard is carefully tapered to ensure the right resonance in different areas. Only those that meet Kawai’s strict quality standards are used in the GL series grand pianos.
SOLID (Stretcher Over-Lap Integrated Design)
SOLID construction provides a strong foundation for string tension. First, the pinblock is attached to the plate. Next, the pinblock and stretcher bar are combined and securely fixed to the rim. The thick stretcher bar highlights the strength of this framework, which is designed for stable tuning and a powerful sound.
V-Pro Plate
The plate is the acoustically neutral iron superstructure of the piano over which the strings are tensioned. All GL Series plates are molded using the Vacuum Mold Process (V-Pro) with “Crossbone Design.” The result is a plate that is strong, stable, and beautiful.
Specifications
| Size | Length | 5”0″ (153 cm) |
| Width | 4’11” (150 cm) | |
| Height | 3’4″ (102 cm) | |
| Weight | 622 lbs. (282 kg) | |
| Touch | White Key Surfaces | Acrylic |
| Black Key Surfaces | Phenol | |
| Action | Millennium III Action with Carbon Fiber | |
| Hammers | All Underfelted | |
| Sound | Soundboard | Solid Spruce, Tapered |
| Agraffes | 1-46 keys | |
| Duplex Scaling | – | |
| Back Posts | 2 | |
| Exterior Design | Pedals | Damper, Sostenuto, Soft |
| Casters | Single, Brass | |
| Lid props | 2 | |
| Fallboard | “Soft Fall” Closing System | |
| Music Rack | Position | 5 Position |
| Hard Finish | – | |
| Lock | – | |
| Other Features | Stretcher Over-Lap Integrated Design (SOLID) Longer Keys Steel-Reinforced Keyslip & Keybed V-Pro Plate | |
| Sound Source | SK-EX Rendering – 88-Key Multi-channel piano sampling – 88-Key Resonance Piano ModellingHarmonic Imaging XL – 88-Key Piano Sampling | |
| Internal Sounds | SK-EX Rendering – SK-EX Concert Grand – 10 Rendering CharactersHarmonic Imaging XL – 90 Sounds | |
| Keyboard Modes | Dual Split Four Hands | |
| Polyphony | Max. 256 notes (depending on selected sound) | |
| Effects | SK-EX Rendering – Ambience (10 types)Harmonic Imaging XL – Reverb (6 types) – Effects (24 types: Chorus x 3, Delay x 3, Tremolo x 3, Auto pan x 2, Phaser x 2, Rotary x 6, Combination x 5) | |
| Virtual Technician | Pianist Mode: – Touch Curve (incl. User) – Voicing (incl. User) – Damper Noise – Fall-back Noise, – Hammer Delay – Minimum Touch – Key Volume (incl. User) – Half-Pedal Adjust – Soft Pedal DepthSound Mode: – Touch Curve (incl. User) – Voicing (incl. User) – Damper Resonance – Damper Noise – String Resonance – Undamped String Resonance – Cabinet Resonance – Key-off Effect – Fall-back Noise – Hammer Delay – Topboard Simulation – Decay Time – Minimum Touch, – Stretch Tuning (incl. User) – Temperament (incl. User) – Temperament Key, – Key Volume (incl. User) – Half-Pedal Adjust – Soft Pedal Depth | |
| Control / Recorder App | PianoRemote (iOS / Android) PianoRemote App-based Recorder PianoRemote App-based User Interface | |
| Metronome | Time Signatures | 1/4, 2/4, 3/4, 4/4, 5/4, 3/8, 6/8, 7/8, 9/8, 12/8 |
| Drum Rhythms | 100 Patterns | |
| Internal Songs | Sound Demo | 39 Songs |
| Music | 204 or 218 Songs (Depending on market location) | |
| Lesson Songs | 578 Songs from Alfred, Burgmüller, Czerny, Beyer, Bach, and Chopin lesson books (lesson books sold separately) 140 Finger Exercises | |
| Transpose | Key Transpose | -12~+12 semi-tones |
| Song Transpose | -12~+12 semi-tones | |
| Other Settings & Functions | Speaker / Headphone Bluetooth MIDI User Data System | Tone Control, Wall EQ, Low Volume Balance, Speaker Volume, Spatial Headphone Sound, Headphone Type, Headphone Volume, Line In Volume Bluetooth MIDI, Bluetooth MIDI Device Name, Bluetooth Audio, MIDI Channel, Local On/Off, Transmit Program Change, Multi-timbral Mode, Channel Mute Reset Sounds, Reset Music, Factory Reset Auto Power Off, Language, Information |
| Sound System | (Aures only) | Soundboard Speaker System with 4 transducers (Low-Mid Range x 2, High Range x 2) |
| Bluetooth® | Bluetooth® (Ver. 4.1; GATT compatible) Bluetooth® Low Energy MIDI Specification compliant Bluetooth Audio (Version 3.0, Profile: A2DP, Codecs: SBC, AAC, aptX) | |
| Connector Jacks | Headphones | 1 x 1/4″, 1 x 1/8″ |
| MIDI | IN/OUT | |
| Line Out | 1/8″ Stereo | |
| Line In | 1/8″ Stereo | |
| USB | to Host | |
| USB | for Update | |
| Power Consumption | Aures2: 58 W, ATX4: 20 W | |
| Power | Power Cable | |
| Bench | Matching Artist Bench | |
| Headphones | Headphone Hook | |
| Finish | Polished Ebony |



