The Kawai GL-10 Baby Grand offers the same attention to detail and quality found in Kawai's larger pianos - in a compact and affordable package. It features the same Millennium III action as top-tier Kawai's, but the true centerpiece is it's premium tapered solid-spruce soundboard.
Price range: $20,995.00 through $22,795.00
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Our review
Short version: the GL-10 is Kawai’s daily driver: the most consistent baby grand we know at this size, with an action built to the same idea as Kawai’s concert instruments.
Kawai uses the Millennium III action in every grand it makes, and the GL-10 gets the same care: even a GL action receives hundreds of thousands of break-in keystrikes and fine regulation before it leaves the factory. The result is an action that’s even and controllable from day one, with the warm, round Kawai sound.
Buy it if you want a real grand for a home, studio or teaching room, with an action a student can grow into and a teacher can trust.
Think twice if bass depth is your priority. At 5’0″, the GL-10 trades some bass warmth for consistency; the GL-20 and GL-30 on our floor give you more length and more bass.
Play it next to its bigger siblings in Atlanta and you’ll know quickly which one your room and your playing need.
Stu Harrison, pianist and educator · President, Merriam Music
Action parts in ABS-Carbon, reinforced with carbon fiber, and grade-weighted hammers for consistency and control.
A taller key profile and concert-length key buttons for an even response across the key.
Straight-grained, quarter-sawn spruce, tapered, with Kawai’s SOLID structure and V-Pro plate.
Choosing a GL
Two inches separate them on paper. Here’s what else changes.
| Kawai GL-10 | Kawai GL-20 | |
|---|---|---|
| Length | 5’0" (153 cm) | 5’2" (157 cm) |
| Width × height | 59 × 40 in | 59 × 40 in |
| Weight | 622 lb (282 kg) | 661 lb (300 kg) |
| Action | Millennium III with ABS-Carbon | Millennium III with ABS-Carbon |
| Duplex scaling | None | Front and back |
| Back posts | 2 | 3 |
| Agraffes | Keys 1–46 | Keys 1–46 |
The bottom line: the GL-20 adds length, duplex scaling and a third back post for more bass and sustain. The GL-10 is the choice when floor space comes first. Both are on our Atlanta floor.
Compare
The baby grands buyers most often compare, side by side from each maker’s published specifications.
| Kawai GL-10 | Yamaha GB1K | Yamaha GC1 | |
|---|---|---|---|
| Length | 5’0" (153 cm) | 5’0" (151 cm) | 5’3" (161 cm) |
| Width × height | 59 × 40 in | 57 × 39 in | 59 × 40 in |
| Weight | 622 lb | 574 lb | 627 lb |
| Action | Millennium III with ABS-Carbon | Not published | Not published |
| Soundboard | Solid spruce, tapered | Spruce | Spruce |
| Back posts | 2 | 3 | 3 |
| Center pedal | Sostenuto | Bass sustain | Sostenuto |
| Soft-close fallboard | Yes | Yes | Yes |
By the numbers: the GL-10 and GB1K are the same length; the GL-10 is wider and about 48 lb heavier, and the GB1K’s center pedal is a bass sustain rather than a true sostenuto. The Yamaha GC1 is three inches longer. The GL-10 is the only one with a published composite action.
Specifications from Kawai and Yamaha USA, October 2026. Yamaha lists the GC1M at 627 lb on its series page and 639 lb on its specifications page.
Buying from Merriam
An acoustic piano is a long-term relationship, so here’s what comes with one from us. Questions first? Call (888) 316-0630, 7 days a week.
The GL-10 is on the floor at Merriam Pianos Atlanta, next to the GL-20, GL-30 and Kawai’s GX grands, so you can hear how length and design change the sound.
Our team delivers across metro Atlanta, and our specialist piano movers deliver to the rest of the lower 48. See shipping and delivery.
Every acoustic piano includes Merriam’s Premium In-Home Setup: a preparation and tuning visit 2–8 weeks after delivery, once the piano has settled into your home.
Bought from an authorized dealer, the GL-10 carries Kawai America’s full 10-year warranty, and it’s transferable.
Our technicians tune and service pianos across Georgia, so the piano you buy here is looked after here.
If an authorized US Kawai dealer advertises it for less, we’ll match it.
What’s in the box: the piano and a matching bench, delivered and set up, with an in-home tuning visit included.
The GL-10 baby grand piano is the introductory model in Kawai’s GL series of professional grands, which MMR Magazine named Product of the Year in 2016. The series runs from the GL-10 and the 5’2″ GL-20 baby grands to the 5’5″ GL-30 Classic Grand, the 5’11″ GL-40 Classic Salon Grand and the GL-50 Conservatory Grand. It’s a 5’0″ baby grand with the Millennium III action, longer keys with concert-length key buttons, underfelted mahogany hammer mouldings, a tapered solid spruce soundboard and agraffes on keys 1 to 46.
It’s built for serious students, teachers who want the best balance of price and performance, and players who want a grand at home without giving up the room. We carry it in Polished Ebony, Satin Ebony, Polished Mahogany and Polished Snow White.
Kawai’s everyday grand line, from the GL-10 to the GL-50. The GL-10 is the most compact.
ABS-Carbon action parts stay stable through humidity changes, so the touch you choose in the showroom is the touch you live with.
Every Kawai grand uses the Millennium III action. Its ABS-Carbon parts, Kawai’s ABS Styran infused with carbon fiber, are lighter and stiffer than wood, so the action is faster and more controllable, and it doesn’t swell or shrink with the seasons. Grade-weighted hammers and longer keys, with a taller profile and concert-length key buttons, give an even response whether you play near the fallboard or at the edge of the key.
The GL-10’s soundboard is straight-grained, quarter-sawn solid spruce, tapered to get the most tone from it. Underfelted mahogany hammer mouldings give a warm, round attack, and agraffes on keys 1 to 46 hold the strings precisely for clear, focused tone through the bass and tenor.
Five feet long: a real grand that still fits most living rooms.
Agraffes on keys 1–46, for precise string termination through the bass and tenor.
Kawai’s full 10-year warranty, transferable to the next owner.
Kawai’s GL series is built around its SOLID structure (Stretcher Over-Lap Integrated Design) and the V-Pro plate, with a pinblock of at least eleven cross-banded layers of North American hard maple.
The cast-iron plate that anchors the GL-10’s string tension, built to Kawai’s V-Pro design.
A dual-damping fallboard that closes slowly and quietly.
A true sostenuto, which holds only the notes you choose.
| Specification | Kawai GL-10 |
|---|---|
| Size | |
| Length | 5’0" (153 cm) |
| Width | 59 in (150 cm) |
| Height | 40 in (102 cm) |
| Weight | 622 lb (282 kg) |
| Action & Keys | |
| Action | Millennium III Grand Action with ABS-Carbon parts and grade-weighted hammers |
| Keys | Longer keys, taller profile, concert-length key buttons |
| Hammers | Underfelted mahogany hammer mouldings |
| Tone | |
| Soundboard | Solid spruce, straight-grained, quarter-sawn, tapered |
| Agraffes | Keys 1–46 |
| Bridges | Solid maple or beech (GL series) |
| Structure & Cabinet | |
| Structure | SOLID (Stretcher Over-Lap Integrated Design), V-Pro plate |
| Pinblock | Laminated, at least 11 cross-banded layers of North American hard maple (GL series) |
| Back posts | 2 |
| Pedals | Damper, sostenuto, soft |
| Fallboard | Soft fall, dual damping |
| Lid props | 2 |
| Music rack | 5 positions |
| Casters | Single, brass |
| Finishes | Polished Ebony, Satin Ebony, Polished Mahogany, Polished Snow White |
| Warranty | |
| Warranty | Kawai America full 10-year warranty, transferable (authorized dealers) |
Specifications per Kawai’s official GL-10 documentation; GL series figures noted. Contact Merriam with any questions before purchase.
5’0″ (153 cm) long, 59 inches (150 cm) wide and 40 inches (102 cm) tall, and it weighs 622 lb (282 kg). Allow room for the bench and for the lid to open.
The GL-20 is two inches longer and 39 lb heavier, and adds front and back duplex scaling and a third back post, for more bass and sustain.
Both are 5’0″ baby grands. The GL-10 is wider and heavier, uses Kawai’s Millennium III composite action and has a true sostenuto pedal; the GB1K’s center pedal is a bass sustain. The best way to choose is to play them.
At 5’0″ long and 59 inches wide, the GL-10 fits most living rooms. Allow room for the bench and for the lid to open, and our team can help you measure before you buy.
Yes. Its Millennium III action is the same design Kawai uses in every grand it makes, and it’s even and controllable enough for advanced repertoire.
Yes. The GL-10 ATX4 adds a digital sound engine and muting for silent practice on headphones.
A matching bench, delivery and Merriam’s Premium In-Home Setup, which includes a preparation and tuning visit 2–8 weeks after delivery. Our team delivers across metro Atlanta, and our specialist movers deliver to the rest of the lower 48. See shipping and delivery.
Acoustic pianos aren’t returnable in most cases, but within 45 days you can exchange it once for a piano of equal or greater value. See our returns policy.
Kawai America’s full 10-year warranty, which is transferable, when the piano is bought from an authorized dealer.
Yes. The GL-10 comes with a matching bench.
Yes. It’s on the floor at Merriam Pianos Atlanta, alongside the GL-20, GL-30 and Kawai’s GX grands.
Yes. If you find the GL-10 advertised for less by an authorized US Kawai dealer, send us the link and we’ll match it.
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