Kawai GL20 157cm Grand Piano; Polished Ebony

Kawai GL20 157cm Grand Piano; Polished Ebony 

The newly launched Kawai GL20 brings a fresh dimension to the acclaimed GL Series, now available in the UK for 2025. Measuring 4cm deeper than the popular GL10, this elegant baby grand offers enhanced richness and projection, while retaining a compact footprint suited to modern living spaces. Its inclusion of duplex scaling - a feature found in Kawai’s higher-end instruments – adds shimmering resonance and beautiful overtones in the treble registers, elevating musical expression to new heights. Combining traditional craftsmanship with cutting-edge design, the GL20 is an inspiring choice for pianists seeking both refinement and performance in a perfectly balanced instrument.

This product is sold in the name and on behalf of Kawai UK Ltd., whose Terms and Conditions and Privacy Policy will apply.

Why Choose Bonners?
When you purchase your acoustic piano from Bonners Piano Centres, you're not just buying an instrument - you're investing in a lifetime of musical enjoyment. We provide everything you need to select the right piano for your budget and needs including expert pre-sales advice, a FREE first tuning, a FREE digital hygrometer to measure room humidity, and a FREE adjustable seat to complement your lovely new piano! 

• • • Expert Pre-sales Advice: Buying a new piano can be a daunting task - especially if you're not musical yourself. Our friendly and knowledgeable piano team all play the piano and can offer their first-hand experience to help you make the right buying decisions for yourself or your family.

    • Free Acoustic Piano Delivery: This piano is delivered free of charge to all England addresses where access is simple – ie no steps, stairs or other obstacles which may require additional lifting equipment or manpower. Please contact our piano department directly on 01323 639335 if you would like confirmation of free delivery, or for delivery quotes to addresses outside of England. We may be able to take away your old piano at the same time. Contact us for more information on this

    • Expert Guidance: Enjoy peace of mind with our expert advice on piano care and maintenance, available to all our customers.

    • Manufacturer Warranty Supported By Our Own Workshop Technicians: We have our own piano workshop in Surrey staffed by technicians with knowledge and skills learned through decades of servicing the World's most famous piano brands. This instrument is sold with a 10-year manufacturers’ extended warranty. If the piano needs repairing, then we come to your home. Tuning and general maintenance/servicing are not covered by the warranty

    • Part Exchange: Do you already own a piano that you would like to trade-in for a new instrument? Email us details of what you have to [email protected] and we will email you back a part exchange price immediately. Please include photos and the serial number.

At Bonners Piano Centres, we're committed to your musical journey. Experience unparalleled service, expert support, and the finest pianos, all designed to bring the joy of music into your home for many years to come.

Kawai GL20 Features

• Agraffes - ensuring string alignment and consistency of ”speaking length”
• Hardwood Bridge - solid maple/beech, for correct string pressure and best tonal output
• Duplex Scaling - for enhanced treble resonance and rich harmonic overtones
• V-pro plate - strong and stable
• Pinblocks - fully laminated with layers of North American hard maple for maximum strength and balance
• Tuning pins - made from high quality carbon steel, nickel plated to provide long-term protection
• Steel-reinforcement - prevents warping and keys from sticking to the keyslip, as well as supporting the action in the keybed
• Soft-Fall Fallboard - to prevent injury to hands or damage to the finish of the piano

Keyboard Action
Kawai's highly acclaimed Millennium 3 action delivers exceptional sensitivity and control, using carbon fibre-infused ABS components for increased strength and stability. This innovative design results in a lighter, faster, and more reliable action that enhances expression and dynamic range. It also reduces mechanical noise and ensures long-term durability. Longer keys and concert-length key buttons make for an easy playing feel while giving great power.

Tapered Spruce Soundboard
Produced from straight-grained, quarter-sawn solid spruce, Kawai’s soundboards are tapered to increase surface area, maximising the resonance and tonal richness of the instrument. The soundboard design and materials enable the piano to produce a vibrant, clear sound with impressive sustain and dynamic range.

See the Kawai GL20 in our Piano Shops
We keep the Kawai GL20 on display in our Milton Keynes piano showroom, and you can try this piano alongside other models in the Kawai range, as well as similar pianos from Yamaha and Feurich. 

In Milton Keynes, we are just 15 minutes from junction 11a of the M1 motorway in Buckinghamshire. We have lots of pianos in store for you to try. There’s free parking on-site, and you are given ample time and space to try all the instruments on display, to ensure you’re making the right choice. If you need help and guidance, our friendly and knowledgeable piano staff are on-hand.