Owning a grand piano is, for many, the step up from an upright to a bigger sound. Anyone looking at a Kawai GL grand piano soon faces three models: the compact GL-10, the GL-30 for the salon, and the larger GL-50. They share the same build philosophy, but differ in how full they sound and how much space they need.
This overview explains the real differences between the three models, what sets Kawai apart in how it builds these grand pianos, and which model is the right choice for whom.
01What defines the GL Series
The GL Series is Kawai's entry into grand piano building in the full concert-action tradition. All three models use the Millennium III action with parts made from the ABS-Carbon composite. This material is lighter and more dimensionally stable than wood alone, which allows fast repetition and an even feel across the whole keyboard.
The solid spruce soundboard and the carefully finished cast-iron plate produce the singing, carrying tone Kawai is known for. Across all three models the action stays equally refined; the difference lies mainly in length, and therefore in sound volume.


02GL-10, GL-30 and GL-50 side by side
The length of a grand piano determines string length and soundboard size, and with it how full and powerful the bass sounds. The Kawai Flügel GL-10 - schwarz poliert, at around 153 cm, is a compact baby grand and the simplest way into grand piano sound, even in smaller rooms. The Kawai Flügel GL-30, at around 166 cm, brings salon-grand sound into the living room. The Kawai Flügel GL-50, at around 188 cm, is the largest of the line and delivers the fullest, roundest tone.
| Model | Length | Character | Ideal for |
|---|---|---|---|
| GL-10 | approx. 153 cm | Compact baby grand, the way into grand piano sound | Smaller rooms, a first grand piano |
| GL-30 | approx. 166 cm | Salon grand with a balanced, full tone | Living rooms and music rooms with some space |
| GL-50 | approx. 188 cm | Largest sound body, powerful bass | Large rooms, demanding repertoire |
03Space and placement
A grand piano needs more than its footprint; it needs room around it for sound and for playing. As a rule of thumb, allow for the bench position and a gap to the wall in addition to the length of the instrument, so the soundboard can radiate freely.
Thanks to its compact length, the GL-10 fits even into rooms where a larger grand would dominate. The GL-30 and GL-50 are at their best in medium-sized to large rooms where the full sound can spread out. If you are unsure which size suits your room, the exact dimensions on each product page in the Flügel collection will help.

04Quiet practice with the ATX silent option
For practising late at night or in a flat with thin walls, Kawai offers the ATX silent option. The acoustic strike of the hammers is stopped just before the strings, and a high-quality sampled sound is delivered through headphones instead. The authentic feel of the grand piano action is preserved, while almost no sound escapes the instrument.
That makes a GL grand workable day to day even where a purely acoustic instrument would clash with consideration for neighbours or family. You play acoustically by day and silently through headphones in the evening.
The three GL models cover a wide spectrum, from compact baby grand to large salon grand, without changing the build quality. The decision comes down mainly to room size and the sound volume you want: the GL-10 to get started, the GL-30 as a balanced middle, the GL-50 for a full tone in a large room.
Frequently asked questions
Which Kawai GL grand piano is right to start with?
How big is the difference in sound between the GL-10 and the GL-50?
How much space does a Kawai GL grand piano need?
Can I practise quietly on a Kawai GL grand piano?
Find the right Kawai grand piano
Compare the GL models by dimensions and equipment, and explore the full selection of grand pianos.
View all grand pianosDiscover the Kawai GL-30Passende Produkte
Kawai Grand Piano GL-10 - Black Polished