When shopping for a professional-grade salon grand piano, the debate between the Kawai RX-2 and the Kawai GX-2 stands out as a primary consideration for advanced pianists, teachers, and institutions. The primary difference between the two models is their structural lineage: the Kawai RX-2 (5'10") is a highly celebrated, discontinued legacy model built as a heavy-duty workhorse, while the Kawai GX-2 BLAK (5'11") is the current production model redesigned from the ground up utilizing blueprint dna from Kawai’s elite, handcrafted Shigeru Kawai concert line. This comprehensive analysis details the structural, tonal, and mechanical evolutions that differentiate these two exceptional instruments to help you determine which belongs in your studio or home. Key Specifications Comparison An authentic tone from the Kawai RX-2 Grand Piano
The Kawai RX-2 and GX-2 represent two generations of the same legendary piano lineage. For decades, the 5’10” (178 cm) grand piano size has been the "sweet spot" for serious pianists, teaching studios, and homes, offering deep bass performance without overwhelming a room. The RX-2 Classic Grand was the standard-bearer for this size from the late 1990s until 2013. Its successor, the GX-2 Blak Performance Series, introduced significant design upgrades. While both are exceptional instruments that share the same size, footprint, and core philosophy, key structural and material differences set them apart. This comprehensive guide compares the Kawai RX-2 and GX-2 to help you understand how they differ in touch, tone, construction, and value. Structural Evolution: Millennium III Carbon Fiber Action The single most critical similarity between the late-generation RX-2 and the GX-2 is the action mechanism. However, understanding how this action functions in each piano is key to evaluating their performance. The RX-2 Era: Early RX-2 models used Kawai’s Ultra-Responsive ABS-Styran action. In 2004, Kawai introduced the Millennium III action, featuring ABS-Carbon (a composite of ABS resin and carbon fiber). If you are shopping for a used RX-2, models built between 2004 and 2013 will feature this highly stable, lightning-fast action. The GX-2 Upgrade: The GX-2 includes the Millennium III action as a standard feature across all production years. Because carbon fiber is micro-engineered, it does not swell or shrink with changes in humidity. This gives both the RX-2 (post-2004) and the GX-2 unmatched repetition speed and environmental durability compared to traditional all-wood actions. Key Differences: Why the GX-2 Commands a Premium While the action technology overlaps in later RX models, Kawai introduced several structural changes when transitioning to the GX "Blak" series. These modifications directly impact the projection and tonal character of the instrument. 1. Ultra-Dynamic Design (The Rim Rim Rigidness) The GX-2 features a significantly stiffer overall structure than the RX-2. Kawai increased the thickness of the outer rim and integrated a more robust under-beam structure. The Result: A stiffer rim reflects sound waves back into the soundboard more efficiently. The GX-2 possesses greater dynamic range, allowing you to play fortissimo passages with less distortion and pianissimo passages with clearer projection. 2. Extended Key Length One of the hidden engineering upgrades of the GX-2 is the extension of the key shank length. The Result: Longer keys shift the pivot point further back. This gives the player more leverage and control when playing deep inside the keys (closer to the fallboard). The GX-2 offers a touch response closer to that of a 6-foot or 7-foot concert grand, providing a more expressive palette than the RX-2. 3. Rim Materials and the "Blak" Aesthetics The GX series uses a higher blend of select hardwoods in its inner rim construction compared to the RX series. Visually, the GX-2 received premium cosmetic upgrades: A premium fallboard logo. Deep black felt accents on the plate (replacing the traditional red felt found on the RX-2). An upgraded music desk with hard-wearing faux leather accents to prevent scratching. A luxury, scratch-resistant lid prop finish. Tonal Profile: Classic Warmth vs. Modern Clarity Kawai pianos are universally celebrated for their dark, warm, and round tonal profile, which contrasts with the brighter, more percussive sound profile of their main competitor, Yamaha. However, the RX-2 and GX-2 express this "Kawai sound" differently. Kawai RX-2 Tone: The RX-2 is known for a very mellow, lush, and singing tone. The bass is remarkably deep for a 5'10" piano, though the treble can sometimes lean toward the quiet or overly dark side if the piano has not been voiced recently by a professional technician. Kawai GX-2 Tone: The structural upgrades to the GX-2 rim give it a more vibrant, clear, and complex voice. It retains the signature Kawai warmth and deep bass, but adds a sparkling clarity to the treble register. It cuts through acoustic spaces more effectively than the RX-2, making it a more versatile instrument for transitioning between classical repertoire and modern jazz or contemporary music. Purchasing Decisions: Buying Used vs. New Because the RX-2 is discontinued, it is exclusively available on the used market. The GX-2 can be purchased brand new or as a lightly used modern instrument. Kawai RX-2 (Discontinued 2013) Kawai GX-2 (Current Model) Availability Used / Pre-owned market only New and Pre-owned market Action Ultra-Responsive ABS (Pre-2004) or Millennium III (Post-2004) Millennium III ABS-Carbon (All models) Key Length Standard Grand Length Extended Length (Enhanced Leverage) Rim Construction Standard RX Specification Ultra-Dynamic Thickened Rim Aesthetics Classic Red Felt / Gold Accent "Blak" Series Black Felt / Luxury Accents Price Point Highly budget-friendly for buyers Premium investment price Choosing the RX-2 The RX-2 is widely considered one of the best value propositions in the used piano market. If you can find a well-maintained, one-owner RX-2 built after 2004 (with the Millennium III action), you will receive roughly 85% to 90% of the performance of a brand-new GX-2 at a fraction of the cost. It is an ideal choice for advanced students, community churches, and home hobbyists on a budget. Choosing the GX-2 The GX-2 is the superior instrument for institutional use, recording studios, or discerning pianists who require maximum control over tonal colors. The extended key length and stiffer rim construction make a tangible difference during demanding, high-level technical play. Furthermore, purchasing a new GX-2 grants you access to Kawai’s factory warranty protection. Final Verdict The battle between the Kawai RX-2 and GX-2 is a matter of evolutionary refinement. The RX-2 is a legendary workhorse that proved composite materials belong in world-class pianos. The GX-2 takes that proven formula and sharpens it with structural innovations that bridge the gap between a home grand and a concert grand. If budget permits, the GX-2 offers a more responsive touch and a clearer treble register. However, if you find a late-model RX-2 in pristine condition, it remains one of the most musically satisfying and durable 5'10" grand pianos ever built. To help give you the best advice on these two instruments, let me know: Will this piano be placed in a home, studio, or performance space ? What is your approximate budget range ? Are you looking at a specific year or condition for the RX-2? Share public link This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Kawai GX-2 is the successor to the , representing a refined evolution of one of the world's most popular grand piano designs. While both are professional-grade instruments featuring Kawai's carbon-fiber composite actions, the GX-2 offers several structural and performance upgrades. Comparison Overview Kawai RX-2 (Predecessor) Kawai GX-2 (Current) Millennium III (ABS-Carbon) Millennium III with longer key sticks Rich, warm, sometimes "mellow" Colorful, lush, with a broader tonal palette Standard RX rim materials Hybrid rim (Maple & Mahogany) for added strength Key Differences & Reviews Touch and Control: The most significant physical change in the is the longer key stick. This provides the player with more leverage and control, making it feel and play more like a larger 6' 6" concert grand rather than a standard salon grand. Structural Integrity: features a reconfigured foundation with a thicker stretcher bar and an "overlapping" design for improved tuning stability and resonance. Sonic Profile: is highly regarded for its reliability and consistent action, the is voiced to have a rounder, more professional tone. Reviewers from Merriam Music note that the bridge and soundboard refinements allow for a more pronounced pianissimo and greater dynamic output. models (produced roughly between 1995 and 2013) remain incredibly popular and are often considered some of the best-valued used grands on the market due to their durable composite parts. Are you looking at new models or considering a RX-2, and do you have a specific in mind for your search? An authentic tone from the Kawai RX-2 Grand Piano
Kawai RX2 vs GX2: A Comprehensive Comparison of Two Exceptional Pianos When it comes to high-quality digital pianos, Kawai is a brand that consistently comes to mind. With a rich history of producing exceptional instruments, Kawai has established itself as a leader in the music industry. Two of their most popular models, the Kawai RX2 and GX2, have garnered significant attention from musicians and piano enthusiasts alike. In this article, we will delve into a detailed comparison of these two outstanding pianos, exploring their features, sound quality, and overall performance. Introduction to Kawai RX2 and GX2 The Kawai RX2 and GX2 are both digital pianos that belong to Kawai's esteemed product lineup. While they share some similarities, they also have distinct differences that set them apart. The RX2 is a more affordable option, designed to provide a premium piano experience at a lower price point. On the other hand, the GX2 is a more advanced model, boasting a wider range of features and a more extensive sound library. Design and Construction At first glance, both pianos appear to have a similar design aesthetic. They feature a sturdy, compact body with a sleek and modern appearance. However, upon closer inspection, some notable differences become apparent. The GX2 has a more robust construction, with a heavier and more solid feel. This is reflected in its weight, with the GX2 tipping the scales at around 90 pounds, compared to the RX2's 70 pounds. The RX2 has a more minimalist design, with a focus on simplicity and ease of use. It features a 3-way speaker system, with two 6-watt speakers and one 12-watt subwoofer. In contrast, the GX2 boasts a more comprehensive sound system, with a 4-way speaker configuration, comprising two 6-watt speakers, one 12-watt subwoofer, and two 3-watt tweeters. Sound Quality and Piano Sounds When it comes to sound quality, both pianos deliver exceptional performance. They both feature Kawai's renowned Harmonic Imaging sound generation technology, which provides a rich and detailed sound. However, the GX2 takes it a step further, with a more extensive sound library and a higher polyphony of 256 notes, compared to the RX2's 128 notes. The RX2 features a range of 14 instrument sounds, including various piano models, electric pianos, and organs. The GX2, on the other hand, offers a more extensive selection of 36 instrument sounds, including a wider range of piano models, as well as other instruments such as harpsichords and celestas. Keybed and Playing Experience The keybed is an essential aspect of any piano, and both the RX2 and GX2 deliver in this regard. They both feature Kawai's Responsive Hammer III keyboard action, which provides a realistic and expressive playing experience. However, the GX2 takes it a step further, with a more advanced keyboard action that features longer keys and a more nuanced response. The RX2 has a 3-sensor detection system, which provides a good level of sensitivity and accuracy. The GX2, on the other hand, features a more advanced 4-sensor detection system, which offers an even higher level of precision and control. Connectivity and Features Both pianos feature a range of connectivity options, including USB, MIDI, and audio outputs. However, the GX2 has a more comprehensive range of features, including: kawai rx2 vs gx2
A built-in song recorder and player A range of educational features, such as a lesson mode and a music score display Compatibility with Kawai's PianoRemote app, which allows users to control the piano and access additional features
The RX2, on the other hand, has a more streamlined feature set, with a focus on simplicity and ease of use. Conclusion and Verdict In conclusion, both the Kawai RX2 and GX2 are exceptional pianos that offer a premium playing experience. While they share some similarities, they also have distinct differences that set them apart. The RX2 is an excellent option for those looking for a more affordable entry-point into the world of digital pianos. It offers a great balance of sound quality, features, and price, making it an attractive option for beginners and intermediate players. The GX2, on the other hand, is a more advanced model that offers a more comprehensive range of features, a more extensive sound library, and a more advanced keyboard action. It is an excellent option for serious musicians and piano enthusiasts who demand the highest level of performance and quality. Ultimately, the choice between the Kawai RX2 and GX2 depends on your individual needs and preferences. If you're looking for a more affordable option with great sound quality and a simple, easy-to-use interface, the RX2 may be the better choice. However, if you're looking for a more advanced piano with a comprehensive range of features and a premium playing experience, the GX2 is the better option. Specifications Comparison | Feature | Kawai RX2 | Kawai GX2 | | --- | --- | --- | | Price | Around $1,500 | Around $2,500 | | Sound Generation | Harmonic Imaging | Harmonic Imaging | | Polyphony | 128 notes | 256 notes | | Instrument Sounds | 14 | 36 | | Keybed | Responsive Hammer III | Responsive Hammer III | | Sensor Detection | 3-sensor | 4-sensor | | Speaker System | 3-way | 4-way | | Connectivity | USB, MIDI, audio outputs | USB, MIDI, audio outputs, song recorder and player | Recommendation Based on our comparison, we recommend the Kawai RX2 for:
Beginners and intermediate players looking for a more affordable digital piano Those who prioritize simplicity and ease of use Musicians who require a great balance of sound quality and price When shopping for a professional-grade salon grand piano,
We recommend the Kawai GX2 for:
Serious musicians and piano enthusiasts who demand the highest level of performance and quality Those who require a more comprehensive range of features and a premium playing experience Musicians who prioritize a more advanced keyboard action and a wider range of instrument sounds.
Kawai RX-2 Go to product viewer dialog for this item. Go to product viewer dialog for this item. : Comparing Two Generations of Excellence When searching for a high-quality, 5'10" to 6'0" grand piano, the Kawai RX-2 Go to product viewer dialog for this item. are arguably two of the most popular choices on the market. The ("Classic" series) was a staple of recording studios, institutions, and homes for years, while the ("BLAK" series) serves as its modern successor. Both pianos are renowned for their exceptional Millennium III Action (featuring ABS-Carbon components) and superb tonal qualities. However, the introduces several key upgrades designed to improve stability, control, and sonic depth. This article provides a comprehensive comparison of the Kawai RX-2 , helping you decide whether to invest in a new or find a pre-owned gem in the 1. Overview: The Evolution of the Series Kawai RX-2 (Classic Series): Produced for over a decade, this 5'10" (178 cm) piano gained a reputation for its balanced, slightly warmer, and versatile tone. It was a staple in institutions worldwide. Kawai GX-2 (BLAK Series): Launched as the successor, the 5'11" (180 cm) is described by Piano Buyer as an "evolutionary" step, maintaining the core strengths of the while introducing materials and structural changes to bridge the gap between intermediate and high-end grand pianos. 2. Key Differences: Structural Enhancements (The "BLAK" Upgrades) was designed to be more rigid and stable than its predecessor. Pinblock Design: In the , the pinblock is fitted to the plate and anchored to the rim, offering better tuning stability. Rim Construction (Konsei Katagi): The uses a newer, more rigid rim construction that uses alternating layers of small-pore and large-pore hardwoods. This combination aims for a higher power output and better projection, while retaining warmth. Length: The is slightly longer at 5'11", compared to the 5'10" , allowing for slightly longer strings. Touch and Action (Millennium III) While both pianos feature the legendary Millennium III action with ABS-Carbon technology, the has refined it further. Longer Keys: The has longer keys than the equivalent , which provides better touch control and a more even, responsive feel, similar to that of a larger grand piano. Refinement: The action is often described as slightly more precise, offering better control during soft playing (pp). Tonal Character Kawai RX-2 (5'10") $17,995.00 Northwest Pianos Go to product viewer dialog for this item. Historically, the is known for its warm, slightly darker, and rich European-style sound. It is incredibly versatile. Kawai GX-2 $45,295.00 Brock Family Music Go to product viewer dialog for this item. retains the warmth of the but with improved clarity, a larger dynamic range, and better projection, thanks to the revamped scaling and rim design. 3. Detailed Comparison Table Kawai RX-2 (5'10") $17,995.00 Go to product viewer dialog for this item. Kawai 5'11" GX-2 BLAK Series Classic Salon Grand Piano $45,295.00$52,495 Go to product viewer dialog for this item. 5' 10" (178 cm) 5' 11" (180 cm) Millennium III (ABS-Carbon) Updated Millennium III (Longer Keys) Rim Construction Traditional Rim Construction Konsei Katagi (Stiff) Anchored to Rim Sound Character Warm, Versatile, Rich Sound Character Warm, Powerful, Clearer Projection Market Status Market Status New / Current Production 4. Which One Should You Buy? Consider the Kawai GX-2 You want the latest technology: You value the enhanced stability and control provided by the longer keys and modern rim construction. You need high performance: The improved action responsiveness is crucial for advanced pianists. You prefer a slightly more "projected" sound: It works better in larger rooms or performance spaces. Consider the Kawai RX-2 If Budget is a major factor: As a pre-owned instrument, the offers incredible value, often costing thousands less than a new You love a "warm" tone: You prefer a softer, more intimate sound rather than a bright, powerful one. You find a meticulously maintained model: A well-maintained (which can last 50-100 years) can be just as satisfying as a new piano. 5. Conclusion Kawai RX-2 are outstanding instruments. The solidified Kawai's reputation for making serious, durable pianos. The builds upon that legacy by optimizing for stability and a more nuanced touch. While the is technically superior, the choice between them often comes down to budget and whether you prefer the slightly warmer, classic sound of the or the refined, powerful sound of the Need Help Choosing? Are you buying for a private home or a large studio ? Do you prioritize a warmer tone or a brighter, more powerful sound ? What is your approximate budget ? Key Specifications Comparison An authentic tone from the
Kawai RX-2 vs GX-2: The Ultimate Grand Piano Showdown When pianists begin searching for a premium, professional-grade grand piano that fits comfortably in a home studio or small recital hall, two names from Kawai’s storied lineup inevitably rise to the top: the RX-2 and the GX-2 . On the surface, they look nearly identical. Both are approximately 5'11" (180 cm) in length, both feature the renowned Millennium III carbon-fiber action, and both carry the promise of Kawai’s rich, warm tonal palette. But the GX-2 is not simply a continuation of the RX-2. It is a complete reimagining. In this deep-dive article, we will dissect every difference—from action geometry and rim construction to tone, touch, and market value. By the end, you will know exactly which piano deserves a spot in your living room or studio. The Historical Context: Evolution, Not Extinction To understand the GX-2, you must first respect the RX-2. The RX Series (replacing the older RX-2, RX-3, etc.—confusingly, Kawai reused the "RX" badge) was produced from the mid-1990s until approximately 2012. It was the benchmark for mid-sized grand pianos in its price range, rivaling the Yamaha C2 and C3. The RX-2 was a workhorse: reliable, responsive, and musically satisfying. In 2012, Kawai discontinued the RX line and introduced the GX Series . The GX-2 was the direct successor to the RX-2. However, do not confuse the GX line with the older, entry-level GE Series (like the GE-30). The GX-2 is a true professional instrument, built with features borrowed from Kawai’s concert grand, the EX. The short version: If you are buying new, you buy a GX-2. If you are buying used, the RX-2 is an excellent value—but you must know what you are sacrificing. Side-by-Side Specifications | Feature | Kawai RX-2 | Kawai GX-2 | | :--- | :--- | :--- | | Length | 5'11" (180 cm) | 5'11" (180 cm) | | Width | 60" (152 cm) | 60" (152 cm) | | Weight | ~705 lbs (320 kg) | ~716 lbs (325 kg) | | Action | Millennium III (ABS-Carbon) | Millennium III (Improved Geometry) | | Hammers | All-underfelted (Mahogany core) | All-underfelted (Softer, more graduated) | | Rim Construction | Hardrock maple (laminated) | Hardrock maple + Alder (softer inner rim) | | Duplex Scaling | Front & rear duplex | Advanced "EX-style" duplex with adjustable aliquot bars | | Key Surfaces | Acrylic/Phenol resin (standard) | Acrylic/Phenol resin ( Neotex optional) | | Music Desk | Standard wire music rack | Solid wood, EX concert-style desk | | Available Finishes | Polished Ebony, Satin Ebony, Mahogany, Walnut | Polished Ebony, Satin Ebony, Mahogany, White, Rosewood | | Production Years | ~1996 – 2012 | 2012 – Present | 1. The Action: Familiar Yet Transformed Both pianos use Kawai’s revolutionary Millennium III action , which replaces wooden jack, repetition lever, and hammer butt with carbon-fiber reinforced ABS plastic. This results in a lighter, stronger, and more humidity-stable action than any all-wood mechanism. However, the GX-2’s action is different. Kawai refined the geometry of the wippen and hammer shank in the GX series. The repetition lever spring tension has been recalibrated to offer a faster return of the key. In practical terms:
RX-2 feel: Responsive, crisp, with a slightly heavier down-weight (approx. 52-55 grams). Ideal for classical pianists who want resistance. GX-2 feel: Faster, lighter (approx. 48-52 grams), with better repetition speed. The key dip feels more controlled, and pianissimos are easier to execute.