If you’re in the market for a digital piano in the mid-range category, the Yamaha DGX-670 and Kawai ES120 are two compelling options. Both models come from respected manufacturers known for their dedication to quality and innovation, but they cater to slightly different audiences. The Yamaha DGX-670 is a feature-packed, versatile instrument aimed at musicians who want a hybrid between an arranger keyboard and a digital piano. The Kawai ES120, on the other hand, is a more straightforward and elegant stage piano focused on delivering an authentic acoustic piano experience.
In this comprehensive comparison, I’ll break down the two models across multiple categories: design, keyboard action, sound quality, speakers, functions, connectivity, and value for money. By the end, you’ll have a clear idea of which digital piano suits your needs best.
Yamaha DGX-670 vs. Kawai ES120 Comparison Chart
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| Category | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
 |  | |
 Price | Check the best price on Amazon | Check the best price on Amazon |
| Keyboard Action | GHS (Graded Hammer Standard) | RHC (Responsive Hammer Compact) |
 Key Weight | Semi-heavy, slightly springy | Heavier, more realistic |
| Key Surface | Glossy white keys, matte black keys | Matte white & black keys (better grip) |
 Sound Engine | Pure CF Sound Engine | Harmonic Imaging (HI) Sound Engine |
| Piano Sample Source | Yamaha CFIIIS Concert Grand | Shigeru Kawai SK-EX Concert Grand |
| Polyphony | 256 notes | 192 notes |
 Speaker System | 2 x 6W (Bass Reflex System) | 2 x 10W (More powerful, fuller sound) |
 Piano Sounds | Multiple grand pianos | 8 acoustic pianos |
| Total Instrument Voices | 600+ voices | 25 voices |
| Accompaniment Styles | 263 styles (auto-backing) |  None |
 Sound Effects | Reverb, Chorus, EQ, VRM Lite | Reverb, Brilliance, Damper Resonance |
 Key Sensitivity Levels | 4 levels (Fixed, Soft, Medium, Hard) | 3 levels (Light, Normal, Heavy) |
 Mic Input (for Singing) |  Yes (with vocal effects) | No |
| Audio Recording | MIDI + WAV (USB storage) | MIDI only (no USB storage) |
 Bluetooth Audio | Yes (Wireless Music Streaming) | No |
| Bluetooth MIDI | No | Yes (Wireless MIDI & App Control) |
| Headphone Jacks | 2 (1/4” stereo jacks) | 2 (1/4” stereo jacks) |
 External Line Out (for Speakers/PA Systems) | No dedicated line out (must use headphone jack) | Yes (Dual 1/4″ Line Outs for better sound quality) |
| AUX Input (for external audio sources) | Yes | No |
| Split & Layer Mode | Yes | Yes |
| Dual Mode (Layering Sounds) | Yes | Yes |
| Transpose & Metronome | Yes | Yes |
| Built-in Songs | 100+ songs & lesson functions | 5 demo songs |
 Compatible Apps | Yamaha Smart Pianist (USB only) | Kawai PianoRemote & Virtual Technician (Bluetooth) |
 USB to Host (for MIDI/DAW connection) | Yes | Yes |
| USB to Device (for saving recordings on flash drive) | Yes | No |
 Battery Operation | No | No |
 Dimensions (without stand) | 1,397 x 445 x 151 mm | 1,312 x 286 x 145 mm |
 Weight | 21.4 kg (47.1 lbs) | 12.5 kg (27.5 lbs) |
| Included Accessories | Power adapter, music rest, sustain pedal | Power adapter, music rest, better sustain pedal (F-10H) |
 Optional Stand | L-300 stand (optional) | HM-5 stand (optional) |
| Optional 3-Pedal Unit | LP-1 (for full pedal functionality) | F-302 (for full pedal functionality) |
| My individual reviews | Yamaha DGX-670 review | Kawai ES120 review |
Summary: Which One Should You Buy?
| Feature Category | Winner | Why? |
|---|---|---|
| Best for Piano Realism (Key Action & Sound) | Kawai ES120 | More natural key action, better acoustic piano sound |
| Best for Features & Versatility | Yamaha DGX-670 | 600+ voices, auto-accompaniment, mic input, USB recording |
| Best for Portability | Kawai ES120 | Much lighter and more compact (12.5 kg vs. 21.4 kg) |
| Best for Learning & Beginners | Yamaha DGX-670 | More built-in songs, lesson functions, and visual interface |
| Best for Serious Pianists | Kawai ES120 | Superior key feel, sound realism, and expressive control |
| Best for Recording & MIDI Use | Yamaha DGX-670 | USB audio recording, USB storage, 256-note polyphony |
| Best for Bluetooth & Wireless Connectivity | Kawai ES120 | Bluetooth MIDI for wireless app control (DGX-670 lacks this) |
| Best for Gigging & Stage Performance | Kawai ES120 | Dedicated line outs for external speakers, better portability |
| Best for Home Use & Fun Playing | Yamaha DGX-670 | Great built-in speakers, accompaniment styles, and sound variety |
Verdict: Which Piano is Better?
Both models have different strengths, and the right choice depends on your needs.
Choose the Yamaha DGX-670 if:
- You want a versatile piano with tons of instrument voices, accompaniment styles, and fun features.
- You like arranger-style playing and creating full-band performances with backing tracks.
- You want a mic input for singing or karaoke.
- You prefer USB recording and playback for easier composition and sharing.
- You don’t mind a heavier, less portable instrument for home use.
Choose the Kawai ES120 if:
- You’re a serious pianist who prioritizes realistic touch and sound.
- You need a lightweight, portable instrument for gigs, rehearsals, or easy transport.
- You prefer Bluetooth MIDI for wireless app integration and learning tools.
- You plan to use external speakers or amplifiers (better line outputs).
- You want a minimalist, distraction-free playing experience.
Overall Winner: It Depends on Your Needs!
- If you want a “fun” digital piano with features, sounds, and learning tools → Get the Yamaha DGX-670.
- If you want the best “piano-playing experience” with realistic touch and tone → Get the Kawai ES120.
Design & Build Quality
When purchasing a digital piano, design and build quality are crucial factors to consider. While sound and touch are the most critical aspects of any piano, the physical design can impact portability, durability, and overall user experience. The Yamaha DGX-670 and Kawai ES120 take very different approaches to design, catering to different types of players. Let’s break down each model in detail.
Yamaha DGX-670: A Feature-Rich, Modern Design
The Yamaha DGX-670 is a hybrid between a portable digital piano and an arranger keyboard, meaning it offers a built-in user interface with buttons, dials, and a screen to control various functions. This design makes it more feature-packed and interactive but also results in a larger, bulkier body compared to a simple stage piano like the Kawai ES120.
Aesthetic & Layout
The DGX-670 has a modern look with smooth, rounded edges and a black matte finish that gives it a sleek yet slightly plastic-heavy appearance. The control panel is placed on the left side of the keyboard, featuring a large LCD color screen and a set of physical buttons and dials.
This layout makes navigating settings, selecting voices, and using accompaniment styles much easier, particularly for those who are accustomed to arranger keyboards. The integration of a music rest is a convenient touch, and the control interface is intuitive, though it might appear overwhelming to someone used to a more minimalist piano design.
Materials & Durability
The body of the DGX-670 is primarily plastic, which makes sense given its affordable price point and feature-packed nature. While the materials don’t feel as premium as higher-end digital pianos with wooden or metal reinforcements, they are still sturdy enough for home use. However, frequent movers or gigging musicians may find the plastic chassis more prone to scratches and minor wear over time.
The buttons and dials feel solid, but some users might find the buttons a bit “clicky” and not as refined as those found on professional synthesizers or high-end workstations. However, for a digital piano in this price range, the build quality is still respectable.
Portability & Weight
One of the biggest downsides of the DGX-670’s design is its weight and bulkiness. At approximately 21.4 kg (47 lbs), it is heavier than many portable digital pianos, making it less ideal for musicians who need to transport their instrument frequently. While not impossible to move, it certainly isn’t as portable as the Kawai ES120, which is significantly lighter.
Additionally, the DGX-670 does not include a built-in stand, meaning users will either need to purchase Yamaha’s optional L-300 stand or use their own setup. While the L-300 stand provides a stable, furniture-like setup, it adds to the overall cost and space requirement.
User Experience & Practicality
The screen and control panel make the DGX-670 extremely user-friendly for musicians who enjoy exploring different features, selecting voices, and using accompaniment styles. The LCD screen provides clear, easy-to-read menus, and the physical buttons make quick adjustments convenient.
However, for players who just want a simple piano-playing experience, the large control panel may feel unnecessary and even distracting. If your primary goal is to focus on pure piano practice rather than exploring sounds, styles, and digital features, the DGX-670’s complex interface may not be the best fit.
Kawai ES120: A Sleek, Minimalist Stage Piano
In contrast to the feature-rich, arranger-style DGX-670, the Kawai ES120 is designed as a pure digital piano with a simple, compact, and portable layout. It follows the “less is more” philosophy, focusing on delivering a realistic piano experience rather than packing in extra features.
Aesthetic & Layout
The Kawai ES120 is a true stage piano, featuring a minimalistic, elegant design with clean lines and a matte finish. There is no large screen, no array of buttons or dials—just a small set of essential controls neatly placed above the keyboard.
This simple layout is perfect for pianists who want an uncluttered playing experience, as there are no distractions from buttons, menus, or additional instrument sounds. The focus remains entirely on playing rather than tweaking settings.
Additionally, the ES120 is available in both black and white finishes, allowing users to choose a style that matches their home or studio aesthetic.
Materials & Durability
Despite being lighter than the DGX-670, the Kawai ES120 feels more premium in terms of construction. The matte-finished plastic casing gives it a solid and refined look, and the keybed feels well-integrated into the chassis, making it more durable for long-term use.
Unlike the DGX-670, which has a more functional design for multi-purpose use, the ES120 is built for pianists who care about feel and quality over extra features. The buttons are soft-touch and have a more premium feel, and the build quality is sturdy enough for both home use and stage performances.
Portability & Weight
One of the biggest advantages of the Kawai ES120 is its lightweight design. At just 12.5 kg (27.5 lbs), it is almost half the weight of the DGX-670, making it an excellent option for gigging musicians, students, or anyone who needs to transport their piano frequently.
Its compact size also makes it easier to store when not in use. Unlike the DGX-670, which requires a dedicated stand for a stable setup, the ES120 can be placed on any standard X-stand or table without issues.
User Experience & Practicality
The Kawai ES120’s simplicity makes it a great choice for players who just want to focus on playing the piano without distractions. The lack of a screen or extensive buttons means that everything is controlled through a few well-placed buttons and key combinations.
For those who appreciate minimalist, elegant design, the ES120 is a far more attractive option than the somewhat cluttered interface of the DGX-670. However, some users may miss having a screen or visual indicators for settings like reverb, metronome tempo, or sound selection.
That said, Kawai has a mobile app that allows players to control settings via Bluetooth MIDI, making it much easier to tweak sound parameters without needing physical buttons on the piano itself.
Design Comparison: Which One is Better?
Now that we’ve examined both models in detail, here’s a direct comparison:
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Aesthetic | Modern, slightly bulky | Minimalist, sleek |
| Materials | Plastic, decent build | Plastic, more premium feel |
| Control Interface | LCD screen, multiple buttons & dials | Simple button layout |
| Portability | 21.4 kg (47 lbs) – heavier | 12.5 kg (27.5 lbs) – lighter |
| User Experience | Feature-rich, good for multi-purpose use | Focused on pure piano playing |
| Best For | Those who want extra features & versatility | Those who want a simple, realistic piano feel |
Final Verdict:
- If you prioritize portability, sleek design, and a distraction-free playing experience, the Kawai ES120 is the clear winner.
- If you prefer a digital piano with extra features, a screen, and built-in accompaniments, the Yamaha DGX-670 offers more functionality—but at the cost of size and simplicity.
Ultimately, it comes down to how you plan to use your digital piano. If you need an all-in-one instrument with extra sounds, accompaniment styles, and a built-in display, go for the DGX-670. But if you’re after a more authentic piano experience with better portability, the ES120 is the superior choice.
Keyboard Action & Feel: Yamaha DGX-670 vs. Kawai ES120
One of the most crucial aspects of any digital piano is keyboard action and feel. A great digital piano should closely replicate the touch of an acoustic piano, providing proper weight, response, and dynamics. The way the keys feel under your fingers significantly impacts your playing technique, expression, and overall enjoyment.
In this section, we’ll take an in-depth look at the keyboard action of the Yamaha DGX-670 and the Kawai ES120, comparing key weight, responsiveness, key materials, dynamic range, and overall playing experience.
Understanding Keyboard Action in Digital Pianos
Before diving into the specifics of each model, it’s important to understand what makes a great keyboard action. Unlike traditional keyboards or synthesizers, digital pianos aim to replicate the feel of an acoustic piano, which involves:
- Weighted and graded hammer action – Acoustic pianos use real hammers to strike strings. Digital pianos use hammer-action mechanisms to mimic this feel, with heavier keys in the bass and lighter keys in the treble.
- Key resistance and return speed – A well-designed action allows for precise control, quick key repetition, and smooth key return.
- Key surface materials – Higher-end digital pianos often use ivory-feel or textured key surfaces to provide better grip and prevent fingers from slipping.
- Dynamic control – A responsive keyboard action should allow a wide range of dynamics, from soft pianissimo to powerful fortissimo.
Now, let’s analyze how the Yamaha DGX-670 and Kawai ES120 compare in these areas.
Yamaha DGX-670: GHS (Graded Hammer Standard) Action
The Yamaha DGX-670 is equipped with Yamaha’s GHS (Graded Hammer Standard) key action, which is Yamaha’s entry-level weighted action. This means that while it provides a realistic playing experience compared to unweighted keyboards, it’s not the most advanced hammer action available.
1. Key Weight & Response
- The GHS action is graded, meaning the lower keys feel heavier, and the higher keys feel lighter, just like an acoustic piano.
- However, the action is on the lighter side compared to a real acoustic piano, making it easier for beginners to play but less satisfying for advanced pianists.
- The keys return to their original position quickly, but not as fast as more premium key actions like Yamaha’s GH3 or Kawai’s RHIII action.
2. Key Surface & Material
- The white keys have a glossy plastic finish, which can feel somewhat slippery during extended playing sessions, especially for players with sweaty hands.
- The black keys have a matte texture, which provides slightly better grip.
While the key material is decent, it doesn’t have the textured, high-quality feel of real ivory or higher-end synthetic key surfaces found in more premium digital pianos.
3. Playability & Expression
- The GHS action is responsive enough for most beginner and intermediate players, allowing decent control over dynamics.
- However, for advanced players, the action may feel too light and lack the nuanced control needed for expressive playing.
- Repeated notes (like trills or fast passages) can feel slightly sluggish compared to more advanced hammer actions.
4. Noise & Key Action Mechanism
- The keys make a noticeable thumping sound when pressed forcefully, which could be slightly distracting when playing at low volumes or with headphones.
- While the mechanism is durable and reliable, it lacks the refined smoothness of Yamaha’s more advanced key actions.
Who is the Yamaha DGX-670’s Keyboard Best For?
Beginners and casual players – The lighter action is easy to play and forgiving. Those who play multiple styles (not just classical piano) – Works well for pop, jazz, and arranging. Serious pianists – Those looking for an authentic grand piano feel might find it too light and plastic-like.
Kawai ES120: Responsive Hammer Compact (RHC) Action
The Kawai ES120 features Kawai’s Responsive Hammer Compact (RHC) action, which is a step above Yamaha’s GHS action in terms of realism and playability.
1. Key Weight & Response
- The RHC action feels significantly more realistic and expressive than the Yamaha GHS action.
- The keys have proper weight and resistance, making them feel closer to an acoustic piano.
- Like the DGX-670, the action is graded, so the lower notes feel heavier than the higher notes.
- The keys return to their resting position more naturally and smoothly, allowing for better dynamic control.
2. Key Surface & Material
- The white keys have a matte finish, making them less slippery and more comfortable for extended playing sessions.
- The black keys are also textured, offering a superior grip compared to the DGX-670.
3. Playability & Expression
- The RHC action allows for much more nuanced dynamic control than the GHS action.
- The keys respond well to soft touches and powerful keystrokes, making it easier to express emotion in your playing.
- Fast repeated notes and trills feel more natural, thanks to the improved key return speed and reduced bounce.
4. Noise & Key Action Mechanism
- The RHC action is quieter and smoother than Yamaha’s GHS action.
- The keys don’t produce as much noise when played forcefully, which is great for quiet practice sessions with headphones.
Who is the Kawai ES120’s Keyboard Best For?
Serious pianists looking for a more realistic piano feel – The RHC action is closer to an acoustic piano. Intermediate and advanced players – Offers better control for expressive performances. Absolute beginners – Might feel slightly heavier and harder to press compared to Yamaha’s GHS action.
Direct Comparison: Yamaha DGX-670 vs. Kawai ES120
| Feature | Yamaha DGX-670 (GHS) | Kawai ES120 (RHC) |
|---|---|---|
| Key Action Type | Graded Hammer Standard (GHS) | Responsive Hammer Compact (RHC) |
| Weighting | Lighter, easier to play | Heavier, more realistic |
| Key Surface | Glossy white keys, matte black keys | Matte white and black keys |
| Dynamic Control | Decent, but not very expressive | Much better control over dynamics |
| Key Noise | Can be noisy when pressed hard | Quieter and more refined |
| Best For | Beginners, casual players, multi-genre musicians | Serious pianists, intermediate & advanced players |
Final Verdict: Which Keyboard Action is Better?
- If you’re looking for a realistic piano experience, the Kawai ES120 is the clear winner. The RHC action feels closer to an acoustic piano, has better key surfaces, and offers superior control over dynamics.
- If you prefer a lighter touch and want a keyboard that’s easier to play, the Yamaha DGX-670 is the better choice. It’s more beginner-friendly but lacks the expressiveness of the ES120.
Final Recommendation: Choose the Kawai ES120 if you want a more authentic piano feel. Choose the Yamaha DGX-670 if you want a lighter, more versatile keyboard for various music styles.
For serious piano players, Kawai’s RHC action is a much better investment in terms of long-term playability and realism.
Sound Quality: Yamaha DGX-670 vs. Kawai ES120
Sound quality is arguably the most important factor when choosing a digital piano. A great instrument should accurately capture the tone of an acoustic piano, providing depth, richness, and realism. Beyond just the raw sample quality, elements like polyphony, resonance modeling, tone shaping, and speaker output all contribute to how immersive and satisfying the playing experience feels.
Both the Yamaha DGX-670 and Kawai ES120 offer high-quality piano sounds, but their approaches are different. Yamaha prioritizes versatility and variety, while Kawai focuses on authenticity and depth. In this expanded section, we’ll analyze every aspect of their sound engines, sampling technology, and overall tone to help you decide which one suits your needs best.
1. Sound Engines & Sampling Technology
Yamaha DGX-670: Pure CF Sound Engine with VRM Lite
The DGX-670 is equipped with Yamaha’s Pure CF Sound Engine, which is based on high-quality samples taken from the Yamaha CFIIIS concert grand piano.
How It Works:
- The Pure CF Sound Engine uses multi-layered samples, meaning that when you press a key harder, you don’t just get a louder version of the same note—you get an entirely different recording with added harmonics and resonance.
- Yamaha has also included Virtual Resonance Modeling Lite (VRM Lite), which simulates the natural sympathetic resonances of an acoustic piano. This improves realism, though it’s a “lite” version of the full VRM technology found in Yamaha’s higher-end Clavinova models.
- While it provides a rich and versatile piano sound, some players may notice that the sustain and resonance don’t sound as organic as higher-end digital pianos.
Other Sounds & Instrument Variety:
One of the DGX-670’s strengths is its wide range of sounds. In addition to the main grand piano sound, it includes: Over 600 instrument voices, including electric pianos, organs, strings, synths, and more. Super Articulation Voices (SA2) that add detailed expression to certain instruments (e.g., realistic saxophone or guitar slides). Arranger capabilities, allowing users to play with a full backing band using various accompaniment styles.
Verdict: The Yamaha DGX-670 delivers a rich, vibrant piano sound with solid resonance modeling, but it’s geared toward versatility rather than pure piano realism.
Kawai ES120: Harmonic Imaging (HI) Sound Engine
The Kawai ES120 is powered by Kawai’s Harmonic Imaging (HI) sound engine, featuring high-resolution samples of the Shigeru Kawai SK-EX concert grand piano—one of the most revered acoustic pianos in the world.
How It Works:
- The HI sound engine takes a different approach compared to Yamaha’s Pure CF Engine. Instead of layering samples, Kawai records each note individually at multiple dynamic levels, ensuring a more natural progression of tone and timbre as you play softer or harder.
- The ES120 also includes string resonance, damper resonance, and key-off simulation, meaning the sound behaves more like a real acoustic piano.
- Unlike Yamaha’s VRM Lite, Kawai’s resonance modeling is more detailed and organic, making the ES120’s sound feel more “alive” compared to the DGX-670.
Other Sounds & Instrument Variety:
Unlike Yamaha, which offers 600+ voices, the Kawai ES120 focuses primarily on piano sounds with a modest selection of additional tones: 8 acoustic piano variations, including different voicings of the SK-EX concert grand and a bright, pop-friendly piano tone. A handful of electric pianos, organs, and string sounds, but nowhere near Yamaha’s variety.
Verdict: The Kawai ES120 offers a richer, more realistic piano sound with superior resonance and key-off simulation. However, it lacks the variety and versatility of the DGX-670.
2. Sound Character & Tone Comparison
Now that we’ve covered the sound engines, let’s compare the actual tone and character of the piano sounds in both models.
Yamaha DGX-670: Bright & Versatile Sound
- The Pure CF Engine produces a clean, bright, and clear piano tone, which makes it great for pop, jazz, and contemporary music.
- The upper register (high notes) is very crisp, which gives melodies a sparkling quality.
- The low-end bass notes have a solid presence, but they don’t feel as deep or resonant as the Kawai ES120.
- The sound is well-balanced across all registers, making it suitable for a variety of genres.
Best For: Players who want a modern, versatile sound that fits many different musical styles.
Kawai ES120: Warm & Expressive Sound
- The Harmonic Imaging engine provides a warmer, deeper, and more expressive tone, ideal for classical and emotional performances.
- The mid-range and bass notes are incredibly rich, with a deep, resonant quality that mimics a real grand piano more accurately.
- The upper register is softer and more natural, lacking the “bright edge” found in the DGX-670.
- The dynamic range is wider, meaning you can play with more subtle nuances and expression.
Best For: Pianists who want a realistic, warm, and expressive tone, especially for classical and jazz music.
3. Polyphony & Layering
Polyphony refers to the maximum number of notes a digital piano can produce at once.
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Polyphony | 256 notes | 192 notes |
| Layering & Splitting | Yes, multiple layers | Yes, dual-layering available |
- The DGX-670 has 256-note polyphony, meaning it can handle complex pieces with sustain and layering more easily.
- The ES120 has 192-note polyphony, which is still very good, but slightly lower. However, since Kawai uses higher-quality samples, the sound remains rich and natural even with slightly lower polyphony.
Verdict: Yamaha wins on polyphony, but Kawai’s superior sample quality makes up for it.
4. Speakers & Sound Projection
Both pianos have built-in speakers, but the power and projection differ significantly.
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Speakers | 2 x 6W speakers with bass ports | 2 x 10W speakers |
| Sound Projection | Clear and detailed | Rich and powerful |
| Best For | Home practice, casual performances | More immersive, better low-end response |
Verdict: The Kawai ES120 has a more powerful speaker system, making it sound fuller in a room. The DGX-670 is still great, but benefits from external amplification.
Final Verdict: Which One Has Better Sound Quality?
Choose the Yamaha DGX-670 if you want:
- A bright, versatile piano tone
- More instrument variety (600+ voices)
- More polyphony (256 notes)
Choose the Kawai ES120 if you want:
- A richer, warmer, more natural piano tone
- Better resonance modeling and expression
- A more immersive speaker system
If you’re a serious pianist who wants the most authentic piano sound, the Kawai ES120 is the better choice. However, if you need a digital piano that offers multiple sounds and styles, the DGX-670 provides greater versatility.
Speaker System: Yamaha DGX-670 vs. Kawai ES120
A digital piano’s speaker system is a critical factor in how well it reproduces sound. A great speaker system enhances clarity, depth, and dynamic range, making the piano feel more alive and immersive.
Both the Yamaha DGX-670 and Kawai ES120 have built-in speakers, but their designs and power outputs differ significantly. In this section, we’ll examine their speaker specifications, sound projection, bass response, and overall listening experience to determine which piano offers the better in-built sound system.
1. Speaker Specifications & Power Output
The power output of a speaker system determines how loud and full the sound can be without external amplification.
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Speaker Configuration | 2 speakers | 2 speakers |
| Speaker Power | 2 x 6W | 2 x 10W |
| Speaker Placement | Front-facing | Downward-firing |
| Bass Enhancement | Yes (Bass Reflex System) | No |
Yamaha DGX-670: Crisp Sound with Bass Reflex Technology
The Yamaha DGX-670 is equipped with two front-facing 6W speakers, designed to produce a clear and balanced sound.
- Bass Reflex System: Yamaha has incorporated a bass reflex port, which enhances the low frequencies, giving the DGX-670 a warmer and more powerful bass response than many other digital pianos with similar speaker sizes.
- Sound Projection: Since the speakers are front-facing, the sound projects directly toward the player, making it clearer and more immediate.
- Clarity at High Volumes: The DGX-670 maintains good clarity at higher volumes, though the bass frequencies can get slightly muddy when pushed to the max.
Verdict: The DGX-670’s bass reflex technology helps compensate for its relatively small speaker power, but it still lacks the depth and power of the Kawai ES120.
Kawai ES120: More Powerful and Fuller Sound
The Kawai ES120’s speakers are significantly more powerful than those of the DGX-670.
- 10W speakers (twice as powerful as Yamaha’s): This gives the ES120 a fuller, more resonant sound that feels closer to an acoustic piano.
- Downward-Firing Speakers: Instead of projecting sound directly at the player, the speakers face downward, allowing the sound to bounce off surfaces, creating a more immersive, natural acoustic effect.
- Better Low-End Response: The bass tones feel deeper and more resonant compared to the DGX-670, making it better suited for classical and jazz music.
Verdict: The Kawai ES120’s speakers produce a more natural, immersive sound with greater depth, especially in the bass frequencies.
2. Sound Projection & Room-Filling Ability
Yamaha DGX-670: Focused and Clear Projection
Since the DGX-670’s speakers are front-facing, the sound is direct and immediate. This makes it a great choice for home practice, where sound clarity and direct projection matter.
However, because the speakers are only 6W each, the sound may start to feel thin in larger rooms. If you plan to perform for an audience or in a large space, external amplification may be necessary.
Kawai ES120: More Room-Filling Sound
The ES120’s downward-firing speakers create a more expansive sound field, making it feel closer to an acoustic piano in a room.
- The wider speaker dispersion allows for more even sound coverage, making the ES120 a better option for larger rooms and small performances.
- At higher volumes, the ES120 maintains its tonal richness, whereas the DGX-670 starts to sound slightly compressed.
Verdict: The ES120’s downward-firing, higher-wattage speakers make it the better choice for a more natural, room-filling sound experience.
3. Bass Response & Overall Sound Depth
Yamaha DGX-670: Enhanced Bass But Limited Power
- Thanks to its bass reflex system, the DGX-670 delivers a stronger bass response than expected for a 6W speaker setup.
- However, the low-end still lacks the richness and depth of the ES120, especially when playing deep bass notes or left-hand-heavy pieces.
Kawai ES120: Superior Bass Response
- The ES120’s 10W speakers naturally provide better bass response, resulting in deeper, richer tones.
- The difference is most noticeable when playing classical pieces, where the left-hand bass notes feel much fuller and more expressive.
Verdict: The ES120 wins in terms of bass response—its higher power output and richer low-end make it the better-sounding piano overall.
4. External Amplification & Connectivity
Both pianos allow you to connect external speakers or headphones, but the experience differs.
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Line Out Ports | Yes (Stereo AUX Out) | Yes (1/4” Line Out) |
| Headphone Experience | Stereophonic Optimizer | Spatial Headphone Sound |
Yamaha DGX-670: Better with External Speakers
The DGX-670 benefits greatly from external amplification. When connected to a dedicated sound system or headphones, its Pure CF sound engine shines, with better clarity and resonance.
- Yamaha includes a Stereophonic Optimizer, which enhances the headphone experience, making it sound less “in-your-head” and more natural.
- The stereo AUX outputs allow for direct connection to speakers or a mixing console, making it a good choice for home studios.
Kawai ES120: Naturally Stronger Without Amplification
The ES120 sounds great even without external speakers, thanks to its higher wattage and better bass response.
- Kawai includes Spatial Headphone Sound, which enhances the realism and depth of the piano sound when using headphones.
- The dedicated 1/4” line outputs make it easy to connect to professional PA systems, making it better suited for stage performances.
Verdict: The DGX-670 benefits more from external amplification, while the ES120 sounds fuller on its own.
Final Verdict: Which Has the Better Speaker System?
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Power Output | 2 x 6W (12W total) | 2 x 10W (20W total) |
| Bass Response | Decent (Bass Reflex System) | Stronger, fuller bass |
| Sound Projection | Direct, clear | More immersive, natural |
| Best For | Home practice, beginners | More natural sound, stage use |
Choose the Yamaha DGX-670 if:
You mostly play at home and don’t need extreme volume. You plan to use external speakers or headphones often. You want clear, front-facing sound with crisp articulation.
Choose the Kawai ES120 if:
You want the best built-in speaker quality with more powerful, natural sound. You play in larger rooms or small performance settings without external speakers. You prefer a more immersive, acoustic-piano-like sound projection.
Overall Winner: Kawai ES120 – With more powerful speakers, better bass response, and a more immersive sound projection, the Kawai ES120 delivers the better built-in speaker experience. However, if you plan to use headphones or external amplification, the DGX-670 can still be a great choice.
Features & Functions: Yamaha DGX-670 vs. Kawai ES120
When comparing the Yamaha DGX-670 and the Kawai ES120, the biggest differences emerge in the features and functions they offer.
- The DGX-670 is a feature-rich hybrid digital piano that combines piano-playing capabilities with arranger keyboard functionality, making it an excellent tool for those who want versatility, auto-accompaniment, and recording options.
- The Kawai ES120, in contrast, is a streamlined digital piano focused on delivering an authentic playing experience with fewer distractions, making it ideal for pianists who prioritize simplicity and realism.
In this section, we will take an in-depth look at the features of both models, including user interface, instrument sounds, accompaniment styles, recording capabilities, Bluetooth connectivity, and extra functionalities.
1. User Interface & Controls
The user interface plays a crucial role in how intuitive and easy a digital piano is to use.
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Screen | Large color LCD screen | No screen |
| Control Layout | Buttons, dials, and a joystick | Minimalist button layout |
| Menu Navigation | Easy, thanks to the display | Uses key combinations for settings |
| Ease of Use | More complex but powerful | Simple and straightforward |
Yamaha DGX-670: Modern & Feature-Rich Interface
The DGX-670 comes with a large color LCD screen, which allows users to easily navigate its many features, sounds, and settings.
- The interface is button-heavy, with dedicated buttons and dials for selecting voices, rhythms, effects, and other settings.
- There is also a joystick-style control that makes adjusting certain parameters more intuitive.
- The screen displays sheet music, lyrics (for songs with vocal tracks), and various settings, making it great for performers and composers.
Best for: Players who want easy access to multiple features without complex menu diving.
Kawai ES120: Minimalist & Clean Interface
The ES120’s interface is much simpler, with no screen and a minimal number of buttons.
- Settings are adjusted via button and key combinations, which can be difficult to memorize at first.
- However, the Kawai PianoRemote app (Bluetooth MIDI) allows users to control settings more easily from their smartphone or tablet.
Best for: Pianists who prefer a distraction-free, piano-focused experience.
Winner: Yamaha DGX-670 (Easier navigation, thanks to the screen).
2. Instrument Voices & Sound Selection
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Total Sounds | 600+ voices | 25 voices |
| Piano Sounds | Multiple grand pianos, electric pianos, etc. | Acoustic grands, uprights, electric pianos |
| Super Articulation Voices | Yes | No |
| Layering & Splitting | Yes | Yes (Limited) |
Yamaha DGX-670: Huge Sound Library
The DGX-670 is packed with over 600 instrument voices, making it one of the most versatile digital pianos in its price range.
- It includes multiple grand pianos, electric pianos, strings, organs, guitars, brass, woodwinds, and synth sounds.
- The Super Articulation Voices (SA2) allow for extra realism in certain instruments (e.g., you can hear the breath sounds in a saxophone or the slide of a guitar).
- The ability to layer two sounds (such as piano + strings) and split the keyboard into two different instruments adds further versatility.
Best for: Musicians who want a variety of sounds beyond just piano.
Kawai ES120: Focused on Acoustic Piano Realism
The ES120 keeps things simple with 25 high-quality voices.
- The piano sounds are detailed and expressive, making it ideal for serious pianists.
- Other included sounds are electric pianos, organs, strings, and bass.
- It allows for layering and splitting, but with fewer customization options than the DGX-670.
Best for: Pianists who only need a handful of realistic, high-quality sounds.
Winner: Yamaha DGX-670 (Much more variety in instrument sounds).
3. Accompaniment Styles & Auto-Backing
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Accompaniment Styles | 263 styles | None |
| Interactive Rhythms | Yes | No |
| Auto-Chord Mode | Yes | No |
The DGX-670 includes a full accompaniment system, allowing users to play with a virtual backing band.
- 263 accompaniment styles (rock, jazz, pop, Latin, etc.)
- Auto-chord mode allows you to play simple left-hand chords, and the piano fills in a full band arrangement.
- Great for songwriters, solo performers, and hobbyists who want to play along with full arrangements.
The Kawai ES120 lacks accompaniment styles, as it’s designed to be a pure digital piano, not an arranger keyboard.
Winner: Yamaha DGX-670 (Perfect for musicians who want auto-accompaniment and rhythm backing).
4. Recording & Playback Capabilities
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| MIDI Recording | Yes | Yes |
| Audio Recording (WAV) | Yes (USB) | No |
| Built-in Songs | 100+ demo songs | 5 demo songs |
Yamaha DGX-670: Full Recording Suite
- The DGX-670 allows users to record and save performances as both MIDI and audio (WAV) files.
- You can export recordings to a USB drive and transfer them to a computer.
- It includes built-in demo songs and educational features, such as Smart Chord and Lesson Mode.
Best for: Musicians who want to record and produce music directly from their digital piano.
Kawai ES120: Simple MIDI Recording
- The ES120 only supports basic MIDI recording, meaning you’ll need external software to create audio files.
- There are only a few built-in demo songs, making it less suited for beginners who want guided lessons.
Best for: Pianists who don’t need advanced recording features.
Winner: Yamaha DGX-670 (Superior recording options).
5. Bluetooth & Connectivity
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Bluetooth Audio | Yes | No |
| Bluetooth MIDI | No | Yes |
| USB & AUX Ports | Yes | Yes |
- The DGX-670 supports Bluetooth Audio, meaning you can stream music from your phone or tablet through its speakers.
- The ES120 supports Bluetooth MIDI, which allows for wireless connection to apps like Kawai’s PianoRemote.
Best for: Bluetooth MIDI (Kawai ES120), Bluetooth Audio (Yamaha DGX-670).
Final Verdict: Which Piano Offers More Features?
Choose the Yamaha DGX-670 if you want: A huge variety of instrument sounds (600+ voices). Accompaniment styles & auto-backing for full arrangements. Audio recording & USB export. A color LCD screen for easy navigation.
Choose the Kawai ES120 if you want: A minimalist, distraction-free piano experience. Superior piano realism without extra features. Bluetooth MIDI for app control.
Winner: Yamaha DGX-670 – If you want versatility, features, and more customization, it’s the better option. However, for pianists who just want a great piano experience, the Kawai ES120’s simplicity and focus make it a strong choice.
Connectivity: Yamaha DGX-670 vs. Kawai ES120
Connectivity is an essential factor when choosing a digital piano, especially if you plan to use external devices like computers, amplifiers, or apps. The right connectivity options can enhance your playing experience, improve sound output, and make recording or live performances easier.
Both the Yamaha DGX-670 and Kawai ES120 offer multiple connection options, but they cater to different types of players. The DGX-670 is designed for versatility, making it ideal for musicians who want MIDI recording, USB playback, and Bluetooth audio streaming. The ES120, on the other hand, is more focused on piano purists and provides Bluetooth MIDI for wireless control and app integration.
In this detailed comparison, we will explore USB/MIDI connectivity, Bluetooth capabilities, audio input/output options, headphone jacks, and app integration, helping you decide which digital piano suits your needs best.
1. USB & MIDI Connectivity
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| USB to Host (MIDI/Computer Connection) | Yes | Yes |
| USB to Device (Save Songs on USB Drive) | Yes | No |
| Traditional MIDI Ports | No | No |
Yamaha DGX-670: USB MIDI & USB Storage
The DGX-670 supports USB-MIDI connectivity, allowing you to connect it to a computer or DAW (Digital Audio Workstation) for music production or practice with virtual instruments.
- USB to Host: Lets you connect the DGX-670 to a computer, tablet, or phone using a USB Type B cable for MIDI communication.
- USB to Device: Unlike the ES120, the DGX-670 includes a USB-to-device port, which allows you to save your recordings, songs, and settings directly onto a USB flash drive—a useful feature for gigging musicians and composers.
Best For: Composers and producers who want an easy way to transfer recordings. Users who need MIDI integration for software instruments and apps.
Kawai ES120: USB MIDI Only (No USB Storage)
The ES120 also includes USB to Host connectivity, allowing for MIDI communication with computers and music software.
- However, it lacks a USB-to-device port, meaning you cannot save songs or recordings directly onto a USB flash drive.
- This makes the ES120 less ideal for musicians who want to save performances easily.
Best For: Pianists who primarily want to use MIDI for virtual instruments and apps.
2. Bluetooth Connectivity: Audio vs. MIDI
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Bluetooth Audio | Yes | No |
| Bluetooth MIDI | No | Yes |
Yamaha DGX-670: Bluetooth Audio Streaming
One of the standout features of the DGX-670 is Bluetooth Audio, allowing you to stream music from your smartphone, tablet, or laptop directly through the piano’s built-in speakers.
- This is perfect for playing along with backing tracks, listening to music, or using piano tutorial apps like Simply Piano or Flowkey.
- However, it does not support Bluetooth MIDI, meaning you cannot connect it wirelessly to MIDI apps like GarageBand or Kawai’s Virtual Technician.
Best For: Casual players who want to play along with songs or YouTube tutorials. Users who prefer wireless music playback through the piano’s speakers.
Kawai ES120: Bluetooth MIDI for Wireless App Integration
The ES120 supports Bluetooth MIDI, allowing you to wirelessly connect to MIDI apps, digital audio workstations (DAWs), and piano learning software.
- With Bluetooth MIDI, you can connect the ES120 to apps like: Kawai PianoRemote – Adjust piano settings and sounds wirelessly. GarageBand – Record and edit music without cables. Flowkey or Simply Piano – Use interactive learning apps.
- However, the ES120 does not support Bluetooth Audio, meaning you cannot stream music through its speakers.
Best For: Users who want a cable-free MIDI experience for recording and app control. Pianists who prefer a clean setup without extra cables.
3. Audio Input & Output Options
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Headphone Jacks | 2 (1/4″) | 2 (1/4″) |
| Line Output (For External Speakers) | No dedicated line out | Yes (Dual 1/4” Line Out) |
| Aux In (For External Audio Sources) | Yes | No |
| Mic Input (With Vocal Effects) | Yes | No |
Yamaha DGX-670: Great for Singers & Home Use
The DGX-670 includes a mic input, allowing you to connect a microphone and sing along while playing.
- It also provides basic vocal effects like reverb and chorus.
- However, it lacks dedicated line outputs, meaning you have to use the headphone jack to connect to external speakers, which may result in lower sound quality.
Best For: Singers who want to play and sing through the same instrument. Casual home players who don’t need professional audio connections.
Kawai ES120: Better for Stage Performers & External Speakers
The ES120 lacks a mic input, but it offers dual 1/4″ line outputs, making it much easier to connect to external amplifiers or PA systems.
- Unlike the DGX-670, which requires a headphone jack workaround, the ES120 provides clean, professional audio output.
- It’s the better choice for stage use or home studios.
Best For: Gigging musicians who need a direct line out to PA speakers. Users who want better external audio connectivity.
4. App Integration & Smart Features
| Feature | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Compatible Apps | Smart Pianist | Kawai PianoRemote, Virtual Technician |
| App Control for Sound Editing | No | Yes |
| Wireless App Connectivity | No (requires USB cable) | Yes (via Bluetooth MIDI) |
- The Yamaha DGX-670 works with Yamaha’s Smart Pianist app, but you must connect it via USB, since it lacks Bluetooth MIDI.
- The Kawai ES120’s Bluetooth MIDI allows for seamless app control, letting you adjust sound settings, reverb, and touch response wirelessly.
Winner: Kawai ES120 (Better wireless app integration).
Final Verdict: Which Digital Piano Has Better Connectivity?
| Feature | Best Option |
|---|---|
| Best for USB MIDI & USB Storage | Yamaha DGX-670 |
| Best for Bluetooth Audio (Wireless Music Streaming) | Yamaha DGX-670 |
| Best for Bluetooth MIDI (Wireless App Control) | Kawai ES120 |
| Best for External Speakers & Live Performance | Kawai ES120 |
| Best for Singers & Mic Input | Yamaha DGX-670 |
Choose the Yamaha DGX-670 if:
You want Bluetooth Audio for streaming music through the speakers. You need a USB-to-device port to save recordings. You want a mic input for singing.
Choose the Kawai ES120 if:
You need Bluetooth MIDI for wireless app control. You want professional line outputs for better external sound quality. You prefer a clean, wireless setup with Bluetooth MIDI apps.
Overall Winner: It depends on your needs. The DGX-670 is better for casual home players, while the ES120 is better for serious pianists who need pro-level connectivity.
Value for Money: Yamaha DGX-670 vs. Kawai ES120
When investing in a digital piano, one of the most important factors to consider is value for money. This doesn’t just mean looking at the price tag—it means evaluating what you get for your investment in terms of sound quality, features, build quality, and long-term usability.
The Yamaha DGX-670 and Kawai ES120 are priced similarly, but they offer very different strengths and weaknesses. The DGX-670 is packed with features and versatility, while the ES120 prioritizes an authentic piano experience.
In this section, we’ll break down the price, features, build quality, longevity, and who each piano is best suited for to determine which model offers the best value for your money.
1. Price Comparison
| Model | Approximate Price (USD) |
|---|---|
| Yamaha DGX-670 | $850 – $900 |
| Kawai ES120 | $900 – $1,000 |
Both pianos fall within the same price range, though the ES120 tends to be slightly more expensive, especially when bundled with a stand and pedal unit. However, the real question is what you get for your money.
2. What Do You Get for the Price?
| Category | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Keyboard Action | GHS (Basic weighted action) | RHC (More realistic, expressive action) |
| Sound Engine | Pure CF (Good, but not the most natural) | Harmonic Imaging (More organic, richer) |
| Polyphony | 256 notes | 192 notes |
| Built-in Speakers | 2 x 6W (Bass Reflex) | 2 x 10W (More powerful, fuller sound) |
| Instrument Voices | 600+ voices | 25 voices |
| Accompaniment Styles | 263 styles (Auto-backing) | None |
| Recording & USB Storage | MIDI + Audio (USB) | MIDI only (No USB storage) |
| Bluetooth | Audio streaming only | MIDI (Wireless app control) |
| Mic Input | Yes (With vocal effects) | No |
| Portability | 21.4 kg (Heavier, less portable) | 12.5 kg (Lighter, more portable) |
3. Longevity & Who Each Piano Is Best For
A good digital piano should serve you well for years to come. The best value doesn’t necessarily mean the most features—it means getting the right piano for your long-term needs.
Who Should Buy the Yamaha DGX-670?
The DGX-670 is an excellent value for money if you: Want a versatile digital piano with hundreds of voices, rhythms, and accompaniments. Enjoy arranger keyboard features, such as backing tracks and built-in styles. Need MIDI and audio recording features for composing and saving your work. Prefer Bluetooth Audio streaming (for playing along with tracks). Want a mic input for singing and performing. However, it is not the best choice if you are a pianist looking for the most realistic key action and sound quality.
Who Should Buy the Kawai ES120?
The Kawai ES120 is worth the investment if you: Prioritize an authentic piano-playing experience over extra features. Want superior keyboard action (RHC) and a more realistic acoustic sound. Need a lightweight and portable digital piano for easy transport. Prefer Bluetooth MIDI for wireless app integration (useful for learning and recording). Plan to use external speakers or amplifiers (better line output options). However, it lacks accompaniment styles, multiple voices, and recording features.
4. Which One Offers Better Long-Term Value?
If we consider long-term value, we need to factor in:
- How long the keyboard action will remain satisfying to play.
- How much you will use the extra features.
- Whether the sound engine will still feel high-quality in a few years.
Yamaha DGX-670: Feature-Packed, But May Become Outdated
The DGX-670’s value lies in its versatility—you get a huge variety of voices, rhythms, and recording capabilities. If you enjoy experimenting with different sounds, you will find this piano entertaining and engaging for years. However, the GHS key action is one of Yamaha’s most basic weighted actions, meaning you may outgrow it if you’re a serious pianist. The sound quality is good but not as deep and rich as Kawai’s.
Kawai ES120: Fewer Features, But Better Playability & Longevity
The RHC key action is far superior to Yamaha’s GHS action, meaning you won’t feel the need to upgrade as quickly. The Harmonic Imaging sound engine provides a more realistic piano sound, making it a great long-term investment for serious players. Bluetooth MIDI support ensures it will remain compatible with future apps and learning tools. It lacks arranger-style features, meaning it’s not as fun or versatile if you want more than just piano sounds.
5. The Hidden Costs: Accessories & Add-Ons
The total cost of ownership includes more than just the piano—you also have to consider what accessories you might need.
| Accessory | Yamaha DGX-670 | Kawai ES120 |
|---|---|---|
| Keyboard Stand | Not included (optional L-300 stand) | Not included (optional HM-5 stand) |
| Sustain Pedal | Yes (basic pedal included) | Yes (F-10H damper pedal included) |
| Three-Pedal Unit | Optional (LP-1) | Optional (F-302) |
- The Kawai ES120 comes with a better sustain pedal (F-10H), which supports half-pedaling, making it a better option for classical pianists.
- The DGX-670 includes a basic pedal, but you may want to upgrade to a better sustain pedal.
Final Verdict: Which Digital Piano Offers the Best Value for Money?
| Category | Best Option |
|---|---|
| Best for Beginners & Hobbyists | Yamaha DGX-670 |
| Best for Serious Pianists | Kawai ES120 |
| Best for Versatility & Fun Features | Yamaha DGX-670 |
| Best for Long-Term Playability | Kawai ES120 |
| Best for Portability & Lightweight Design | Kawai ES120 |
Choose the Yamaha DGX-670 if:
You want a fun, feature-rich digital piano with lots of voices, rhythms, and accompaniment styles. You enjoy composing or performing with backing tracks. You need a mic input for singing. You value Bluetooth Audio for music playback.
Choose the Kawai ES120 if:
You are a serious pianist who prioritizes key action and sound quality. You need a lightweight and portable digital piano. You want Bluetooth MIDI for wireless app integration. You plan to use external speakers for performances.
Overall Winner: It depends on your needs. If you want features and versatility, the DGX-670 is the better value. But if you prioritize realistic piano playability, the ES120 is the superior long-term investment.
Final Verdict: Yamaha DGX-670 vs. Kawai ES120
After analyzing both digital pianos in depth, it’s clear that the Yamaha DGX-670 and Kawai ES120 cater to different types of musicians. Your final choice should be based on how you plan to use the instrument, your playing style, and what features matter most to you.
Choose the Yamaha DGX-670 if:
You want a versatile digital piano with arranger features – With 600+ voices, 263 accompaniment styles, and rhythm backing, the DGX-670 is a great choice for those who like to experiment with different sounds and genres. You enjoy composing and recording – The USB audio recording and MIDI capabilities make it easy to save and transfer your music. You need a mic input for singing – Unlike the ES120, the DGX-670 lets you plug in a microphone and apply vocal effects. You value Bluetooth Audio for playing along with songs – You can stream music directly through the piano’s speakers. You’re a beginner or casual player – The lighter GHS key action makes it easier to play, and the built-in learning tools are great for students.
Choose the Kawai ES120 if:
You want a more realistic piano-playing experience – The Responsive Hammer Compact (RHC) action is far superior to Yamaha’s GHS action, offering a more expressive, natural feel. You prioritize high-quality piano sound over extra features – The Harmonic Imaging sound engine delivers a richer, more organic tone compared to Yamaha’s Pure CF engine. You need a lightweight, portable instrument – At just 12.5 kg (27.5 lbs), it’s much easier to transport than the 21.4 kg DGX-670. You want Bluetooth MIDI for wireless app control – Unlike the DGX-670, the ES120 allows for wireless connection to music apps. You perform live and need proper line outputs – The dual 1/4″ line outputs provide better sound quality when connecting to external speakers or PA systems.
Final Recommendation: Which One is Better?
- If you want a digital piano with advanced features, fun sounds, and accompaniment styles, the Yamaha DGX-670 is the better choice.
- If you’re a pianist looking for a serious instrument with superior key action and tone, the Kawai ES120 is the better investment.
Ultimately, it depends on what you need—the DGX-670 is a feature-rich digital piano for hobbyists and composers, while the ES120 is for pianists who want the best possible playing experience in this price range.