Kawai K300

About the Kawai K300

At 48 inches tall and 227kg, the K-300 pairs a tapered solid spruce soundboard with Kawai's Millennium III Upright Action, built from ABS-Carbon composite components for a touch Kawai positions well above its entry-level Ultra-Responsive action. The mahogany-moulded hammers are double-felted and fully underfelted, paired with NEOTEX-covered acrylic white keys and phenol black keys. Depending on the destination market, the piano is built either at Kawai's Japanese facility or its Indonesian plant - forum consensus among experienced buyers holds that the two are structurally and musically the same instrument, with the Japanese build benefiting mainly from more time spent on final voicing and tuning rather than any difference in materials or design.

Where to buy

• eBay 4.500 EUR Best price View details
• Reverb 6.282 EUR View details
• Reverb 7.365 EUR View details
• Reverb 8.856 EUR View details

No platform selected – pick at least one above.

Some links below are affiliate links. We may earn a commission at no extra cost to you.

Source: https://reverb.com/item/75303876-kawai-k300-ebony-polish-upright-piano-japan

Sound character of the Kawai K300

The tapered solid spruce soundboard produces a rich, pleasing tone with a notably wide dynamic range, from thundering fortissimos down to delicate pianissimos, and reviewers specifically note that evenness across registers is far more pronounced here than on Kawai's smaller uprights. One owner's preferred description - pearly rather than brilliant - captures a tone that leans toward roundness and depth over sharp brightness, though at least one owner found the factory-fresh upper register ran brighter than ideal until a technician voiced it down.

What owners of the Kawai K300 say

Reception runs strongly positive across multiple independent owner accounts. One new buyer described simply falling in love with the sound, characterizing its tone as pearly rather than brilliant - a deliberate contrast with brighter-voiced competitors like Yamaha. Another owner, rating touch and sound quality 9 out of 10, said he'd buy it again tomorrow without hesitation, despite needing professional voicing to tame an initially too-bright upper register. A third owner summed up the broader appeal simply: owning a genuinely nice instrument is motivating to practice on. The one recurring debate concerns origin - Japanese- versus Indonesian-built units - where one owner perceived a substantial tonal difference between the two, but the wider community consensus across several independent discussions holds that any gap is minor and mostly reflects extra time spent on final factory voicing rather than a fundamentally different instrument.

Playability & handling of the Kawai K300

A dedicated review described the action as feeling solid and crisp even at top playing speed, crediting the reinforced composite action and grand-piano-length keys with noticeably increased responsiveness across the full range compared to Kawai's smaller uprights. Owner accounts back that up directly: one new buyer, upgrading from a digital piano, called the action very crisp to play and was struck by how much more responsive it felt. Another long-term owner who rated touch and sound quality 9 out of 10 found the keyboard somewhat softer in resistance than equivalent Yamaha models - a difference he described as something players simply adapt to rather than a flaw.

Recommended accessories & strings for the Kawai K300

An optional ATX2 silent system is available on certain bundles, letting players practice through headphones without disturbing others - one owner called its headphone sound quality more than decent. Beyond that, standard upright care applies: regular tuning and stable humidity. One owner noted the upper register sounded somewhat too bright fresh out of the box, an issue a professional piano technician resolved through targeted voicing - a reminder that post-purchase voicing adjustments can meaningfully shape the final tonal balance on this piano.

Technical data for the Kawai K300

Price history for the Kawai K300

Cheapest seen: 4.500 EUR  ·  Most expensive seen: 8.856 EUR

The history of the Kawai K300

The K-300 is the direct successor to Kawai's earlier K-3, continuing what Kawai calls an award-winning legacy within the brand's professional upright lineup. It sits well above this project's already-documented ND21 in Kawai's own hierarchy - where the ND21 uses the brand's first-generation Ultra-Responsive action aimed at beginners and institutions, the K-300's Millennium III action targets players who want genuinely professional touch and tonal control in an upright form factor rather than stepping up to a grand.

About Kawai as a manufacturer

Company background on Kawai (founder Koichi Kawai, the 1927 founding in Hamamatsu, and the brand's growth into one of the world's most established piano makers) is documented in full at this project's ND21 entry and isn't repeated here. Specific to the K-300, Kawai positions the model as carrying forward an award-winning legacy within its professional upright range, aimed at pianists who want performance-grade touch and tone without moving up to a grand piano.

Notable players & recordings featuring the Kawai K300

No verified, model-specific signature-player association was found for this piano.