When it comes to choosing a digital piano that balances performance, portability, and price, the Yamaha P-225 and the Casio PX-S1100 are two models that often come up in conversation. Both pianos have their own strengths and cater to different player preferences. In this comprehensive review, we’ll dive deep into various aspects of these instruments, including design, keyboard action, sound quality, speakers, functions, connectivity, and overall value for money. By the end, you’ll have a clearer picture to help you decide which piano aligns best with your musical needs.
Yamaha P-225 vs. Casio PX-S1100 Comparison Chart
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| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
 |  | |
| Price | Check the best price on Amazon | Check the best price on Amazon |
| Key Action | Graded Hammer Compact (GHC) | Smart Scaled Hammer Action |
| Keys | 88 fully weighted keys | 88 fully weighted keys |
| Touch Sensitivity | Soft, Medium, Hard, Fixed | 5 levels (adjustable) |
| Sound Engine | Yamaha CFX Sampling | Multi-Dimensional Morphing AiR |
| Polyphony | 192 notes | 192 notes |
| Number of Tones | 24 sounds | 18 sounds |
| Speaker System | 7W + 7W, downward-facing | 8W + 8W, front-facing |
| Bluetooth MIDI | ✅ Yes | ✅ Yes |
| Bluetooth Audio | ❌ No | ✅ Yes |
| USB MIDI | ✅ Yes (USB-B) | ✅ Yes (USB-B) |
| USB Audio Recording | ❌ No | ✅ Yes (Direct USB Audio) |
| Headphone Jacks | 2x (1/4″) | 2x (1/8″) |
| Line Outputs | ✅ Stereo 1/4″ outputs | ✅ Stereo 1/8″ outputs |
| Sustain Pedal Input | ✅ Supports half-damper | ✅ Supports half-damper |
| 3-Pedal Unit Support | ✅ LP-1 Pedal Unit | ✅ SP-34 Pedal Unit |
| Built-in Effects | Reverb, Sound Boost, Table EQ | Reverb, Hall Simulator, Surround |
| Modes | Dual, Split, Duo Mode | Layer, Split, Duet Mode |
| Metronome | ✅ Yes | ✅ Yes |
| Recording Function | ✅ Yes (MIDI Only) | ✅ Yes (MIDI + Audio) |
| App Compatibility | Smart Pianist App | Chordana Play App |
| Weight | 11.5 kg (25.3 lbs) | 11.2 kg (24.7 lbs) |
| Dimensions (W x D x H) | 1,326 x 268 x 129 mm | 1,322 x 232 x 102 mm |
| Power Supply | AC Adapter (included) | AC Adapter (included) |
| Battery Operation | ❌ No | ✅ Yes (6x AA batteries) |
| My individual reviews | Yamaha P-225 review | Casio PX-S1100 review |
Key Takeaways from the Comparison Table
✔ Yamaha P-225 is better for:
- More realistic piano feel and sound (thanks to GHC action and CFX sampling).
- Live performance and stage use (better audio outputs).
- Serious pianists who value a premium keyboard action.
✔ Casio PX-S1100 is better for:
- Wireless features (Bluetooth Audio + MIDI).
- USB Audio Recording, making it more convenient for recording.
- Portability, as it’s lighter, slimmer, and supports battery operation.
Would you like me to refine this further or add additional comparisons? 🎹
Design
When it comes to digital pianos, design is more than just looks. It influences portability, playability, and even how the piano fits into your home or studio setup. Both the Yamaha P-225 and Casio PX-S1100 are designed with modern musicians in mind, emphasizing sleekness, ease of use, and space efficiency. However, they take different approaches to achieving these goals.
Overall Aesthetic and Build Quality
Yamaha P-225: The Yamaha P-225 continues the legacy of the P-series with a sleek, contemporary look that balances elegance and practicality. Compared to its predecessor, the P-125, Yamaha has managed to refine the design by making the body slightly more compact and lightweight while maintaining a sturdy, well-built feel. The piano is available in two colors—classic black and stylish white—allowing musicians to choose an option that best fits their personal aesthetic or home decor.
The surface of the P-225 is finished with a matte texture that resists fingerprints and smudges, making it easy to keep clean. The buttons and controls are positioned neatly on the front panel, with a no-nonsense layout that makes navigation straightforward. Unlike some pianos that rely heavily on menu-diving, the P-225 provides dedicated buttons for essential functions, which is a plus for those who prefer tactile controls over touchscreen menus.
The overall build quality of the P-225 is excellent. Despite being a lightweight digital piano, it doesn’t feel flimsy or cheap. The plastic casing is sturdy, and there’s no creakiness or flex when lifting the unit. This robustness gives the impression that the instrument can withstand years of regular use, whether it’s being transported frequently or kept in a fixed location.
Casio PX-S1100: The Casio PX-S1100, on the other hand, is one of the most visually striking digital pianos on the market. It holds the title for being the slimmest 88-key digital piano in the world, a feat that Casio achieved through meticulous engineering. Like the Yamaha P-225, the PX-S1100 comes in black or white, but it also offers a stunning red variant that gives it a bold, distinctive look.
One of the most noticeable aspects of the PX-S1100’s design is its glossy, mirror-like finish. While this makes the instrument look premium and futuristic, it does have a downside—it tends to attract fingerprints and dust, meaning you might find yourself wiping it down frequently to maintain its pristine appearance.
Casio has opted for a completely touch-based control panel rather than physical buttons. While this contributes to its ultra-modern aesthetic, it’s a point of contention for some users. Touch controls can sometimes be less responsive than buttons, especially if playing in low-light conditions where they aren’t as easy to feel. Additionally, because the interface lacks haptic feedback, some players may miss the tactile assurance that comes with pressing physical buttons.
The PX-S1100’s build quality is solid for such a slim instrument, though it doesn’t feel quite as robust as the Yamaha P-225. The lightweight construction makes it an excellent choice for gigging musicians or those who frequently move their piano around, but it also means that it may not feel as substantial when played aggressively.
Portability and Size
Portability is an important factor for musicians who plan to transport their digital piano to gigs, rehearsals, or lessons. Both models are designed with portability in mind, but they have different approaches.
- Yamaha P-225 Dimensions:
- Width: 1,326 mm (52.2 inches)
- Depth: 272 mm (10.7 inches)
- Height: 129 mm (5.1 inches)
- Weight: 11.5 kg (25.4 lbs)
- Casio PX-S1100 Dimensions:
- Width: 1,322 mm (52 inches)
- Depth: 232 mm (9.1 inches)
- Height: 102 mm (4 inches)
- Weight: 11.2 kg (24.7 lbs)
While both pianos are relatively compact, the Casio PX-S1100 is noticeably slimmer and slightly lighter than the Yamaha P-225. If space is a major concern, the PX-S1100 has a slight advantage, as its incredibly thin profile allows it to fit into tighter spaces. This also makes it one of the easiest full-sized digital pianos to transport.
However, the Yamaha P-225 is still quite portable and offers a balance between compactness and durability. If you’re someone who prioritizes build quality over ultra-slim design, the P-225 might be the better choice.
Both models can be used with optional stands, but Yamaha offers the L-200 stand, which transforms the P-225 into a more furniture-like instrument. Casio has a similar option with its CS-68 stand, but it doesn’t integrate quite as seamlessly as Yamaha’s stand does.
User Interface and Controls
A piano’s user interface should be intuitive and easy to navigate, allowing players to focus on music rather than fumbling with settings.
Yamaha P-225: Yamaha keeps things traditional with its button-based interface. The layout is clean and logical, with well-labeled buttons for different sound settings, metronome, and recording functions. One of the advantages of this design is that it allows for quick adjustments without requiring the player to go through a series of menu screens.
The P-225 also supports the Yamaha Smart Pianist app, which expands the piano’s functionality when connected to a smart device. The app provides a visual interface for selecting sounds, adjusting effects, and even displaying sheet music. This is a fantastic addition for players who prefer touchscreen control but still want the reliability of physical buttons.
Casio PX-S1100: Casio has taken a completely touch-based approach with the PX-S1100’s control panel. The touch buttons light up when active, adding to the futuristic aesthetic. While this makes for a very sleek-looking interface, it can be less responsive compared to physical buttons, especially if your hands are slightly damp or the lighting is dim.
One notable benefit is that the PX-S1100 is compatible with Casio’s Chordana Play app, which offers similar features to Yamaha’s Smart Pianist app. The app allows for deeper customization of sounds, recording capabilities, and access to various practice tools.
Both pianos offer Bluetooth connectivity, but Casio has the advantage of built-in Bluetooth Audio, allowing the PX-S1100 to double as a Bluetooth speaker. This feature is useful for playing along with backing tracks or simply listening to music through the piano’s speakers.
Pedal and Stand Compatibility
Both the Yamaha P-225 and Casio PX-S1100 come with a basic sustain pedal in the box, but they support more advanced pedal setups.
- Yamaha P-225: Supports Yamaha’s FC3A pedal, which offers half-damper functionality for more realistic sustain control.
- Casio PX-S1100: Supports Casio’s SP-34 triple pedal unit, which mimics the sustain, soft, and sostenuto pedals of an acoustic grand piano.
If you’re looking for a piano that will function as a full-fledged home instrument, the Yamaha P-225 with its L-200 stand and three-pedal unit offers a more traditional upright feel. The Casio PX-S1100’s slim stand is more minimalistic but still provides stability.
Final Verdict on Design
Both the Yamaha P-225 and Casio PX-S1100 excel in design, but their strengths cater to different users:
- Choose the Yamaha P-225 if you want a well-built, slightly more traditional design with physical buttons, better durability, and an easy-to-use interface.
- Choose the Casio PX-S1100 if you prioritize ultra-slim design, a futuristic aesthetic, touch controls, and built-in Bluetooth audio.
Ultimately, the choice depends on whether you value a sleek, ultra-modern look or a more robust, tactile experience.
Keyboard Action: Feel, Responsiveness, and Playability
One of the most important factors when choosing a digital piano is how the keys feel under your fingers. The action of a keyboard determines how closely the digital piano replicates the experience of playing an acoustic grand piano. For serious players, the realism of the key movement, weight distribution, and responsiveness can make or break an instrument.
Both the Yamaha P-225 and Casio PX-S1100 aim to provide an authentic grand piano feel, but they go about it in different ways. Let’s take a deep dive into the key action mechanisms, material quality, realism, and playing experience of these two digital pianos.
Key Action Mechanisms: GHC vs. Smart Scaled Hammer Action
The key action of a digital piano is determined by the mechanism inside the keyboard. Since neither of these instruments uses real strings and hammers, they must simulate the feel of an acoustic piano with weighted actions.
Yamaha P-225 – Graded Hammer Compact (GHC) Action
The Yamaha P-225 introduces the Graded Hammer Compact (GHC) action, which is a refined version of the Graded Hammer Standard (GHS) action found in older Yamaha digital pianos like the P-125.
Key characteristics of the GHC action:
- Graded weight distribution: The lower register keys are heavier, while the higher register keys are lighter, mimicking the feel of an acoustic grand piano.
- More compact design: The P-225’s new GHC action is slightly more compact and lightweight than the GHS action, making the piano slimmer without sacrificing key realism.
- Improved key stability: The GHC action feels more consistent than the older GHS action, reducing any unwanted side-to-side movement of the keys.
- Textured key surfaces: The black keys have a matte finish to prevent slipping, but the white keys are still smooth plastic.
- No escapement simulation: Unlike some higher-end digital pianos, the P-225 does not feature escapement (the slight “notch” feeling when pressing a grand piano key lightly).
Casio PX-S1100 – Smart Scaled Hammer Action
Casio has taken a completely different approach with the Smart Scaled Hammer Action Keyboard, which is an evolution of the action found in the previous PX-S1000 model.
Key characteristics of Casio’s Smart Scaled Hammer Action:
- Individually weighted keys: Unlike Yamaha’s system, which applies weight in groups, Casio claims that each key has a unique weight distribution, similar to a real grand piano.
- Slimmest hammer action mechanism: Casio designed this system to fit into the PX-S1100’s ultra-slim frame, making it one of the most compact weighted actions on the market.
- Lighter overall feel: The PX-S1100’s key action is noticeably lighter than Yamaha’s GHC action, making it easier for beginners to play but possibly less satisfying for classical pianists.
- Simulated ivory and ebony texture: The keys have a textured surface to improve grip and give a more premium feel.
- No escapement simulation: Like the Yamaha P-225, the PX-S1100 does not feature an escapement mechanism.
Realism and Playability
Both pianos aim to simulate the feel of an acoustic grand piano, but they cater to slightly different audiences.
Yamaha P-225: Heavier and More Traditional
The P-225’s GHC action has a heavier feel compared to the PX-S1100. This makes it more realistic for classical and advanced players who are used to the weight and resistance of a real acoustic piano. The graded hammer effect is also well-balanced, making transitions between registers feel natural.
Pros:
- Better for players transitioning from an acoustic piano.
- More substantial key weight gives a satisfying touch.
- Improved key stability compared to older Yamaha models.
Cons:
- May feel slightly too heavy for beginners.
- Keys are still plastic (though black keys are textured).
Casio PX-S1100: Lighter and More Accessible
The PX-S1100’s Smart Scaled Hammer Action is lighter and faster, making it easier to play, especially for beginners or those who prefer a more effortless touch. However, advanced players may find it slightly unrealistic compared to an acoustic grand.
Pros:
- Lighter action is easier for beginners to play.
- Slimmest hammer action mechanism available.
- Textured keys feel premium and improve grip.
Cons:
- Keys may feel too light for classical players.
- Slightly less resistance than a real grand piano.
Key Noise and Responsiveness
Another important factor in keyboard action is how much noise the keys make and how responsive they are.
Yamaha P-225: Quieter and More Consistent
The Yamaha P-225 has noticeably quieter keys than previous models. Key noise is minimal, making it ideal for late-night practice sessions or quiet environments. The response time is fast, and dynamic control (playing soft and loud) feels natural.
Casio PX-S1100: Slightly Noisier but Faster
Casio’s PX-S1100 keys are slightly noisier than Yamaha’s, especially when the keys return to their resting position. However, the action is quick and light, making it great for fast passages and pop/jazz playing.
Which Keyboard Action is Better?
There’s no clear winner here—it depends on what type of player you are.
- Choose the Yamaha P-225 if:
- You want a heavier key action that feels closer to a real acoustic piano.
- You’re a classical or advanced pianist who needs more resistance.
- You want better stability and long-term durability.
- Choose the Casio PX-S1100 if:
- You prefer a lighter touch for easier and faster playability.
- You are a beginner and want something more forgiving.
- You need an ultra-portable digital piano with a slim profile.
Final Thoughts on Keyboard Action
Both pianos offer impressive key actions for their price range, but they cater to different preferences.
- The Yamaha P-225 feels more like a traditional grand piano, making it the better choice for classical players or those transitioning from an acoustic instrument.
- The Casio PX-S1100 has a lighter, faster action, which makes it ideal for beginners, pop/jazz players, or those who prefer a more effortless touch.
Ultimately, your choice depends on your playing style—if you love weighted, realistic keys, the Yamaha P-225 is the way to go. But if you prioritize portability and a lighter, faster feel, the Casio PX-S1100 is a fantastic option.
Sure! Here’s an in-depth, 1000-word expansion of the Sound Quality section, covering the sound engines, realism, polyphony, resonance, speaker quality, and customization options for both the Yamaha P-225 and Casio PX-S1100.
Sound Quality: Realism, Depth, and Customization
The sound quality of a digital piano is arguably just as important as its key action. No matter how great the keys feel, if the sound doesn’t inspire you, the instrument won’t be enjoyable to play. Both Yamaha P-225 and Casio PX-S1100 come equipped with advanced sound engines designed to replicate the tone of an acoustic grand piano. However, they take different approaches in their sampling technology, digital processing, and additional features.
Let’s take an in-depth look at the sound engine, realism, polyphony, resonance, speakers, and sound customization of these two digital pianos.
1. Sound Engine and Grand Piano Sampling
The heart of any digital piano’s sound lies in its sound engine, which determines how the piano generates its tones. Yamaha and Casio use different technologies to create their piano sounds.
Yamaha P-225: CFX Grand Piano Sound Engine
The Yamaha P-225 uses the CFX Grand Piano Sound Engine, which is derived from Yamaha’s high-end concert grand piano, the Yamaha CFX. This is a major upgrade from the Pure CF Sound Engine found in the older Yamaha P-125.
Key highlights of the CFX Grand Piano Sound Engine:
- Sampled from the Yamaha CFX concert grand: One of Yamaha’s most prestigious 9-foot concert grands.
- More dynamic and expressive than previous Yamaha models.
- Virtual Resonance Modeling (VRM Lite): Simulates natural string and damper resonance for a more realistic acoustic feel.
- Enhanced tonal depth: The CFX engine provides richer bass and clearer high frequencies compared to older Yamaha digital pianos.
The CFX sound is powerful, bright, and resonant, making it ideal for classical and jazz players who want a full, concert-like experience.
Casio PX-S1100: Multi-Dimensional Morphing AiR Sound Source
The PX-S1100 uses Casio’s Multi-Dimensional Morphing AiR Sound Source, which has been a staple in Casio’s Privia line for years. This engine is designed to offer smooth dynamic transitions and a natural decay of notes.
Key highlights of the AiR Sound Source:
- Derived from a Steinway-like grand piano sample: Casio doesn’t explicitly state which piano they sampled, but it has a more mellow and warm tone.
- Multi-dimensional layering: The sound engine dynamically adjusts tone and resonance based on key velocity.
- String resonance and damper resonance modeling: Similar to Yamaha’s VRM Lite, but slightly less detailed.
- Smooth decay and natural sustain: Notes fade out more gradually, mimicking an acoustic piano’s natural decay.
The Casio PX-S1100’s sound is warm, intimate, and expressive, making it great for ballads, pop music, and singer-songwriter styles.
Which Sound Engine is Better?
- Yamaha P-225 (CFX Engine): Bright, concert-like tone with more depth and power.
- Casio PX-S1100 (AiR Engine): Warmer, softer sound that blends well in intimate settings.
If you prefer a powerful, rich grand piano sound, the Yamaha P-225 is the better choice. If you like a smoother, more delicate tone, the Casio PX-S1100 may suit you better.
2. Polyphony: How Many Notes Can It Handle?
Polyphony determines how many notes the piano can play simultaneously before it starts cutting off older notes. This is especially important when playing sustained chords, layered sounds, or using the damper pedal.
- Yamaha P-225: 192-note polyphony
- Casio PX-S1100: 192-note polyphony
Both pianos offer 192-note polyphony, which is more than enough for any advanced piece, even with layering and sustain pedal usage. In this aspect, both pianos are equal.
3. Resonance and Expressiveness
A real acoustic piano produces resonance from its strings, dampers, and the wooden soundboard. Digital pianos simulate this effect using resonance modeling.
Yamaha P-225: Virtual Resonance Modeling (VRM Lite)
Yamaha’s VRM Lite is a simplified version of the Virtual Resonance Modeling found in their high-end Clavinova series.
- Simulates string resonance, damper resonance, and key-off resonance.
- Adds natural harmonics to sustained notes.
- More realistic sustain than previous Yamaha models.
Casio PX-S1100: Simulated String and Damper Resonance
Casio’s AiR Engine also includes string resonance and damper resonance simulation, but it’s not as detailed as Yamaha’s VRM Lite.
- Smoother, more organic decay of notes.
- Natural sustain, but slightly less harmonic richness compared to Yamaha.
Which Has Better Resonance?
- Yamaha P-225 has more complex resonance modeling (VRM Lite), making it slightly more realistic.
- Casio PX-S1100 has smoother decays, but lacks the harmonic depth of Yamaha’s VRM Lite.
If you want a more authentic grand piano-like resonance, the Yamaha P-225 wins in this category.
4. Speaker System: Loudness and Sound Projection
A piano’s built-in speakers determine how well it projects sound without external amplification.
| Model | Speakers | Power Output |
|---|---|---|
| Yamaha P-225 | 2 speakers (12 cm) | 14W (7W + 7W) |
| Casio PX-S1100 | 2 speakers (8 x 16 cm) | 16W (8W + 8W) |
Yamaha P-225: Strong, Balanced Sound
- The P-225’s speakers are well-balanced, with clear bass and treble.
- Sound remains rich and full even at high volumes.
- Louder than older Yamaha P-series models.
Casio PX-S1100: Louder and More Open Sound
- Larger speaker system compared to Yamaha.
- More open and spacious sound, but bass is slightly weaker.
- Best when placed on a solid surface for better projection.
Which Has Better Speakers?
- Casio PX-S1100 is louder.
- Yamaha P-225 has better sound balance.
If you need stronger bass and more controlled sound, go for Yamaha P-225. If you want slightly louder volume, Casio PX-S1100 wins.
5. Sound Customization and Effects
Both pianos offer reverb, chorus, and EQ settings, but Yamaha provides slightly more control.
- Yamaha P-225: Reverb, damper resonance, VRM Lite, EQ controls.
- Casio PX-S1100: Reverb, chorus, string resonance, damper resonance.
Yamaha’s VRM Lite adds a richer sense of space, making it more realistic in classical and jazz settings. Casio’s effects are more subtle, ideal for pop and modern music.
Final Verdict on Sound Quality
| Category | Winner | Why? |
|---|---|---|
| Grand Piano Tone | Yamaha P-225 | CFX sound is more powerful and rich. |
| Resonance | Yamaha P-225 | VRM Lite adds more realism. |
| Speaker Loudness | Casio PX-S1100 | Slightly louder sound. |
| Speaker Balance | Yamaha P-225 | More refined bass and treble. |
| Sound Customization | Yamaha P-225 | More control over resonance. |
Which One Should You Choose?
- If you want a bright, concert grand-like sound, choose the Yamaha P-225.
- If you prefer a warmer, softer tone with slightly louder speakers, go for the Casio PX-S1100.
Both pianos offer great sound, but Yamaha provides more realism, while Casio focuses on warmth and accessibility. 🎹
Speakers: Volume, Clarity, and Projection
The built-in speakers of a digital piano can greatly impact your playing experience. While external amplification or headphones can improve sound quality, many players rely on the built-in speakers for daily practice and casual performances. A good speaker system ensures clear highs, full mids, and deep bass, allowing the piano’s tone to sound natural and immersive.
Both the Yamaha P-225 and Casio PX-S1100 offer dual-speaker systems, but they have different designs, power outputs, and sound dispersion characteristics. Let’s break down how they compare in terms of volume, sound clarity, projection, and overall quality.
1. Speaker Configuration and Power Output
| Model | Speaker Size | Speaker Power Output |
|---|---|---|
| Yamaha P-225 | 2 speakers (12 cm) | 14W (7W + 7W) |
| Casio PX-S1100 | 2 speakers (8 x 16 cm) | 16W (8W + 8W) |
At first glance, the Casio PX-S1100 appears to have the upper hand in terms of raw power output (16W vs. Yamaha’s 14W). However, the speaker design and positioning play an equally important role in sound quality.
- Yamaha P-225: Features two circular 12 cm speakers, positioned to create a well-balanced sound across all frequency ranges.
- Casio PX-S1100: Uses elongated (8 x 16 cm) oval-shaped speakers, designed to maximize sound dispersion in a slim body.
2. Sound Clarity and Tonal Balance
Speaker clarity is crucial for accurately reproducing the sound engine’s quality. If the built-in speakers are weak, even a great sound engine can sound thin or muffled.
Yamaha P-225: Rich and Balanced Sound
The P-225’s speaker system is designed to emphasize clarity and definition across the entire frequency spectrum.
- High frequencies (treble): Crisp and well-defined, without being too sharp.
- Mid frequencies: Strong presence, allowing the CFX grand piano tone to cut through.
- Bass frequencies: Fuller and deeper compared to the Casio PX-S1100.
Since the Yamaha P-225 uses a concert grand piano sample (CFX), the speaker system is fine-tuned to enhance its rich and powerful tone.
Casio PX-S1100: Bright and Spacious Sound
The PX-S1100’s speakers are larger in total surface area, allowing for greater sound dispersion. However, because the piano itself is much slimmer, the speaker system doesn’t produce as much depth in the bass as Yamaha’s.
- High frequencies: Very bright and airy, great for modern and pop sounds.
- Mid frequencies: Clear but slightly thinner than Yamaha.
- Bass frequencies: Less pronounced, requiring an external speaker for deeper bass.
Casio’s speaker system favors brightness and space over deep resonance. This makes it ideal for pop, jazz, and modern playing, but less immersive for classical music compared to Yamaha.
3. Volume and Sound Projection
A good speaker system should provide enough volume for home practice while maintaining clarity at higher levels.
Yamaha P-225: Controlled and Focused Projection
The P-225’s speakers provide a solid amount of volume, but they emphasize clarity and focus over sheer loudness. Even at higher volume settings, the sound remains balanced, without distortion or muddiness.
Casio PX-S1100: Louder but Less Focused
The PX-S1100 can get slightly louder than the Yamaha P-225, thanks to its 16W power output. However, the sound is more dispersed and less focused, meaning it may lose some clarity in large rooms.
Which One is Louder?
- Casio PX-S1100 is technically louder, but at maximum volume, it can sound slightly thinner.
- Yamaha P-225 has slightly lower volume output but better tonal balance and clarity at high levels.
For larger rooms or small performances, Casio’s extra volume can be beneficial. However, for focused, detailed listening, the Yamaha P-225 is more refined.
4. Speaker Placement and Sound Dispersion
Where the speakers are positioned affects how well the sound fills a room and whether the player gets a natural experience at the keyboard.
Yamaha P-225: Forward-Facing Speaker System
The P-225’s speakers are positioned on the top panel, projecting the sound directly toward the player. This creates a realistic and focused experience similar to sitting at a grand piano.
- Pros:
✅ Sound reaches the player directly, providing a realistic piano experience.
✅ Better for solo practice, as the sound is more focused. - Cons:
❌ Slightly less room-filling than Casio in larger spaces.
Casio PX-S1100: Downward-Facing Speakers
The PX-S1100 uses downward-firing speakers, meaning the sound is reflected off the surface it sits on before reaching the player.
- Pros:
✅ Creates a more spacious sound, making it feel larger.
✅ Ideal for open areas or performances, as sound spreads more evenly. - Cons:
❌ Less direct projection, meaning some clarity is lost if placed on soft surfaces (e.g., carpet).
❌ Sounds best on a hard surface (wood or table) for proper reflection.
Which Has Better Speaker Placement?
- Yamaha P-225 is better for a direct, focused sound, great for practice and precision.
- Casio PX-S1100 fills a room better, ideal for background music or performances.
5. External Speaker or Headphone Use
While both pianos have good built-in speakers, external amplification can drastically improve the sound.
- Yamaha P-225 sounds fantastic through external monitors, as the CFX sample shines with better speakers.
- Casio PX-S1100 benefits more from an external subwoofer, as it lacks deep bass.
For quiet practice, both offer high-quality headphone outputs, but Yamaha provides a slightly richer and more immersive sound through headphones.
Final Verdict: Which Has the Better Speaker System?
| Feature | Winner | Why? |
|---|---|---|
| Loudness | Casio PX-S1100 | 16W speakers provide slightly more volume. |
| Sound Clarity | Yamaha P-225 | More refined balance, especially at higher volumes. |
| Bass Depth | Yamaha P-225 | Fuller and richer bass response. |
| Speaker Placement | Yamaha P-225 | More direct and natural projection. |
| Room-Filling Sound | Casio PX-S1100 | Wider dispersion, good for performances. |
Which One Should You Choose?
- For a balanced, professional-sounding piano tone, go with Yamaha P-225.
- For louder volume and a room-filling experience, choose Casio PX-S1100.
Both have great speaker systems, but Yamaha is more refined, while Casio is louder and more immersive. 🎶
Functions and Features: Expanding Beyond the Basics
A digital piano is more than just its keys and speakers—it’s a modern instrument packed with features and functions that enhance versatility and usability. Whether you’re a beginner looking for practice tools, a performer needing extra sound options, or a recording musician searching for connectivity features, the right digital piano can offer a tailored experience.
The Yamaha P-225 and Casio PX-S1100 both bring a variety of functions and additional features, but they take different approaches in how they enhance playability and flexibility.
1. Built-in Sounds and Instrument Selection
While most players will spend the majority of their time using the grand piano sound, additional instrument tones can be useful for different musical styles, layering, or creativity.
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Total Built-in Sounds | 24 sounds | 18 sounds |
| Grand Piano Variations | 4 types (CFX, bright, mellow, soft) | 3 types |
| Other Instruments | Electric pianos, organs, strings, vibraphone, harpsichord, bass | Electric pianos, organs, strings, vibraphone, synths, bass |
| Layer and Split Mode | ✅ Yes | ✅ Yes |
Yamaha P-225: Focused on Acoustic Sounds
The P-225 offers 24 sounds, with a strong emphasis on acoustic realism. The main CFX grand piano sample is the star, but Yamaha also provides:
- Electric pianos (Rhodes, Wurlitzer)
- Jazz and pipe organs
- Strings and orchestral pads
- Bass and harpsichord options
Yamaha’s electric pianos and organs are particularly well-done, faithfully reproducing vintage tones with warmth and depth.
Casio PX-S1100: More Variety, Including Synths
The PX-S1100 has fewer total sounds (18), but it includes more modern instrument options such as synth pads, making it more suited for pop, R&B, and electronic music.
- Mellow and bright grand piano tones
- More varied electric piano tones
- Synth pads and layered sounds
Which One is Better?
- Yamaha P-225 excels in realistic acoustic instruments (pianos, organs, strings).
- Casio PX-S1100 has a more modern sound selection, including synths.
For classical and jazz players, the Yamaha P-225 is the better choice. For pop and electronic styles, the Casio PX-S1100 offers more variety.
2. Playing Modes (Dual, Split, Duo Mode)
Both pianos provide standard playing modes, allowing for layering, splitting sounds, and duet play.
| Mode | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Dual Mode (Layering) | ✅ Yes | ✅ Yes |
| Split Mode (Different sounds on left & right hand) | ✅ Yes | ✅ Yes |
| Duo Mode (Two identical pitch zones for duets) | ✅ Yes | ✅ Yes |
- Dual Mode: Allows two sounds to be played simultaneously (e.g., piano + strings).
- Split Mode: Assigns different sounds to the left and right hand (e.g., bass on left, piano on right).
- Duo Mode: Splits the keyboard into two identical zones for teacher-student practice.
Comparison:
- Both pianos support all three modes, making them equally flexible for duets, teaching, and layering sounds.
3. Recording and Playback Features
For musicians who like to record their performances, both pianos offer internal recording options, but with some key differences.
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| MIDI Recording | ✅ Yes (1 song, 2-track) | ✅ Yes (1 song, 2-track) |
| USB Audio Recording | ❌ No | ✅ Yes |
| Playback Format | MIDI only | MIDI & WAV |
- The Yamaha P-225 only supports MIDI recording, meaning you cannot record and export audio files directly.
- The Casio PX-S1100 allows direct WAV recording via USB, making it easier to export and share recordings.
Which One is Better?
- If you want quick and easy audio recording, the Casio PX-S1100 is the better choice.
- If you mainly record MIDI and edit on a computer, both are equally capable.
4. Metronome, Transpose, and Tuning Options
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Metronome | ✅ Yes | ✅ Yes |
| Transpose | ✅ Yes (-6 to +6 semitones) | ✅ Yes (-12 to +12 semitones) |
| Fine-tuning | ✅ Yes | ✅ Yes |
- Both pianos have built-in metronomes, transpose functions, and fine-tuning options.
- Casio offers a wider transpose range (-12 to +12), useful for accompanying singers in any key.
5. Bluetooth and Connectivity Options
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Bluetooth Audio | ❌ No | ✅ Yes |
| Bluetooth MIDI | ✅ Yes | ✅ Yes |
| USB MIDI | ✅ Yes | ✅ Yes |
| Line Out (for external speakers) | ✅ Yes | ✅ Yes |
- Casio PX-S1100 supports Bluetooth Audio, allowing you to stream music through its speakers.
- Both pianos support Bluetooth MIDI, making them wireless-friendly for music apps.
- Both have USB and Line Out for external speakers.
Which One is Better?
- If you want Bluetooth Audio for streaming music, Casio PX-S1100 wins.
- If you only need Bluetooth MIDI, both pianos are equal.
6. Additional Features and App Compatibility
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| App Compatibility | Smart Pianist App | Chordana Play App |
| Pedal Support | Includes basic pedal, supports half-damper | Includes basic pedal, supports half-damper |
- Yamaha P-225 works with Smart Pianist App, which offers visual chord charts and sound editing.
- Casio PX-S1100 works with Chordana Play App, which allows MIDI control and interactive learning tools.
Both are equally good for beginners and intermediate players who want extra functionality via apps.
Final Verdict: Which Has Better Features?
| Category | Winner | Why? |
|---|---|---|
| Sound Variety | Yamaha P-225 | More realistic acoustic instrument sounds. |
| Modern Tones (Synths) | Casio PX-S1100 | Includes synth pads and pop-friendly tones. |
| Recording Features | Casio PX-S1100 | Supports USB Audio recording. |
| Bluetooth Audio | Casio PX-S1100 | Can stream music through speakers. |
Which One Should You Choose?
- For acoustic realism and better piano tones: Yamaha P-225
- For modern features (USB Audio, Bluetooth Audio, synths): Casio PX-S1100
Both pianos are well-equipped, but Yamaha is more traditional, while Casio is better for modern connectivity. 🎹
Connectivity: How Well Do They Connect?
In today’s digital world, connectivity is a crucial factor when choosing a digital piano. Whether you’re looking to connect to a computer, record music, amplify your sound, use Bluetooth, or integrate with apps, a well-connected piano can vastly improve your playing experience.
Both the Yamaha P-225 and Casio PX-S1100 offer a range of wired and wireless connection options, but they take slightly different approaches. Let’s break down how they compare in terms of USB functionality, Bluetooth features, audio outputs, and app compatibility.
1. USB MIDI and USB Audio: Recording & DAW Integration
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| USB MIDI | ✅ Yes (USB-B) | ✅ Yes (USB-B) |
| USB Audio (Direct Recording) | ❌ No | ✅ Yes |
| Compatible with DAWs | ✅ Yes | ✅ Yes |
Yamaha P-225: MIDI-Only USB Connection
The P-225 supports USB-MIDI, meaning you can connect it to a computer, iPad, or smartphone and use it as a MIDI controller for software like GarageBand, Logic Pro, or FL Studio. However, it does not support USB audio, so you can’t record audio directly via USB. Instead, if you want to record the actual piano sound, you need to:
- Use an external audio interface (like a Focusrite Scarlett)
- Record through the line-out connection
This adds an extra step for those wanting to record audio directly into their computer.
Casio PX-S1100: USB Audio + MIDI for Direct Recording
The PX-S1100 offers both USB-MIDI and USB Audio, making it the more versatile choice for recording. You can:
- Record audio directly into your computer via USB, without needing an external interface.
- Use it as a MIDI controller for DAWs and virtual instruments.
This makes the PX-S1100 a better choice for musicians who want a simpler recording process.
Which One is Better?
- If you only need MIDI connectivity, both are equal.
- If you want direct audio recording via USB, Casio PX-S1100 wins.
2. Bluetooth Connectivity: Audio Streaming & MIDI
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Bluetooth Audio | ❌ No | ✅ Yes |
| Bluetooth MIDI | ✅ Yes | ✅ Yes |
Bluetooth Audio: Casio PX-S1100 Has the Advantage
One of the standout features of the Casio PX-S1100 is its Bluetooth Audio support. This means you can:
- Stream music wirelessly from your phone or tablet directly through the piano’s built-in speakers.
- Play along with backing tracks or YouTube tutorials without needing external speakers.
The Yamaha P-225 lacks Bluetooth Audio, meaning you’ll need to connect an external device using a cable if you want to play along with songs.
Bluetooth MIDI: Both Pianos Support It
Both the Yamaha P-225 and Casio PX-S1100 support Bluetooth MIDI, allowing for:
- Wireless MIDI connection to music apps on smartphones and tablets.
- Use with apps like GarageBand, Flowkey, Simply Piano, and Synthesia.
Which One is Better?
- Casio PX-S1100 is the winner because it has both Bluetooth MIDI and Bluetooth Audio.
- Yamaha P-225 only has Bluetooth MIDI, which is still useful for wireless control of apps.
3. Audio Outputs: Connecting to Speakers & Amplifiers
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Line Out (Stereo 1/4″ Jacks) | ✅ Yes | ✅ Yes |
| Headphone Jacks | ✅ 2x (1/4″) | ✅ 2x (1/8″) |
Yamaha P-225: Standard Line Outputs for Performance Use
The P-225 includes proper stereo 1/4″ line outputs, making it easy to connect to external speakers or PA systems. This is a big advantage for performers who play in live settings, as it provides clear, high-quality audio output.
Casio PX-S1100: Standard Outputs, But Requires an Adapter for Some Setups
The PX-S1100 also has stereo line outputs, but they are smaller 1/8″ jacks, meaning you may need an adapter to connect to some audio interfaces or PA systems.
Which One is Better?
- For live performances, Yamaha P-225 is better because it has professional-grade 1/4” outputs.
- Casio PX-S1100 is fine for home use, but performers might find the 1/8” jacks limiting.
4. Pedal Inputs: Half-Damper Support & Expression Control
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Sustain Pedal Input | ✅ Yes (Supports half-damper) | ✅ Yes (Supports half-damper) |
| 3-Pedal Unit Support | ✅ Yes (LP-1 unit) | ✅ Yes (SP-34 unit) |
Both pianos support half-damper functionality, which allows for more expressive pedaling, particularly useful in classical and jazz music.
- Yamaha P-225 supports the LP-1 pedal unit, which mimics an acoustic piano’s full 3-pedal setup.
- Casio PX-S1100 supports the SP-34 pedal unit, offering the same functionality.
Which One is Better?
- Both pianos are equal in pedal support, as they both allow half-damper and full pedal compatibility.
5. App Integration & Smart Features
| App Compatibility | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Smart Pianist App | ✅ Yes | ❌ No |
| Chordana Play App | ❌ No | ✅ Yes |
Yamaha P-225: Smart Pianist App
Yamaha’s Smart Pianist App allows you to:
- Control sounds and settings from your smartphone.
- Display chord charts for any song in your music library.
- Adjust reverb, EQ, and other parameters easily.
Casio PX-S1100: Chordana Play App
Casio’s Chordana Play App offers:
- Interactive learning tools, including on-screen notation and MIDI playback.
- Tone customization and layering options.
- Music visualizer features for more interactive practice.
Which One is Better?
- If you want a more intuitive sound customization experience, Yamaha’s Smart Pianist App is better.
- If you prefer learning tools and interactive features, Casio’s Chordana Play is better.
Final Verdict: Which One Has Better Connectivity?
| Category | Winner | Why? |
|---|---|---|
| USB MIDI | Tie | Both support USB MIDI. |
| USB Audio Recording | Casio PX-S1100 | Direct audio recording without an interface. |
| Bluetooth Audio | Casio PX-S1100 | Can stream music via Bluetooth. |
| Live Performance Outputs | Yamaha P-225 | 1/4″ line outs for professional use. |
| App Compatibility | Depends | Yamaha for customization, Casio for learning. |
Which One Should You Choose?
- For home recording & wireless features: Casio PX-S1100.
- For live performances & professional output quality: Yamaha P-225.
Both pianos offer strong connectivity, but Casio is more modern, while Yamaha is more performance-focused. 🎶
Value for Money: Which Piano Gives You More for Your Investment?
When it comes to purchasing a digital piano, value for money is one of the most important considerations. It’s not just about which piano is cheaper—it’s about which one offers the best combination of features, build quality, sound, and performance for the price.
The Yamaha P-225 and Casio PX-S1100 are in the same price range (typically around $700–$800, depending on the retailer and promotions), making them direct competitors. However, they have different strengths, meaning the better value depends on your specific needs. Let’s break it down.
1. What Do You Get for the Price?
| Feature | Yamaha P-225 | Casio PX-S1100 |
|---|---|---|
| Keyboard Action | GHC (Graded Hammer Compact) | Smart Scaled Hammer Action |
| Sound Engine | Yamaha CFX Sampling | Casio Multi-Dimensional Morphing AiR |
| Polyphony | 192 notes | 192 notes |
| Speakers | 7W + 7W | 8W + 8W |
| Bluetooth Audio | ❌ No | ✅ Yes |
| Bluetooth MIDI | ✅ Yes | ✅ Yes |
| USB Audio Recording | ❌ No | ✅ Yes |
| Line Outputs | 1/4″ Stereo | 1/8″ Stereo |
| Weight | 11.5 kg (25.3 lbs) | 11.2 kg (24.7 lbs) |
At first glance, the Casio PX-S1100 offers more features, particularly with Bluetooth audio streaming and USB audio recording, which the Yamaha P-225 lacks. However, Yamaha’s build quality, sound realism, and playability may appeal more to serious pianists.
2. Build Quality & Design: Which One Feels More Premium?
Both the P-225 and PX-S1100 have a modern, compact design, but they take different approaches:
- Yamaha P-225 feels more solid due to its sturdy, well-built chassis. The keyboard also feels slightly more premium.
- Casio PX-S1100 is sleeker and lighter, making it better for portability.
If you want a robust, stage-ready instrument, the P-225 is better. If you prioritize portability and aesthetics, the PX-S1100 wins.
3. Sound & Playing Experience: Which Feels More Like a Real Piano?
- Yamaha P-225 uses CFX concert grand sampling, producing rich, dynamic, and expressive tones.
- Casio PX-S1100’s AiR engine is impressive, but some may find it slightly less realistic than Yamaha’s CFX tones.
If you are a classical or jazz pianist looking for a more authentic grand piano experience, the Yamaha P-225 is the better choice. However, the PX-S1100’s wider range of features and connectivity makes it more versatile for different styles of music.
4. Connectivity: Which One Is More Versatile?
Casio offers Bluetooth audio streaming and USB audio recording, both missing from the Yamaha P-225. If you want to connect wirelessly or record directly to your computer without an audio interface, the PX-S1100 is the clear winner.
However, the Yamaha P-225 has better live performance connectivity, thanks to proper 1/4” line outputs. If you perform on stage, this could be a deal-breaker.
5. Long-Term Investment: Which One Holds Its Value?
- Yamaha pianos tend to hold their value well due to their reputation for quality and durability.
- Casio pianos, while innovative, often depreciate faster because Yamaha has a stronger brand image among serious pianists.
If you’re buying with long-term durability and resale value in mind, the Yamaha P-225 may be the better investment.
Final Verdict: Which One Offers the Best Value?
Casio PX-S1100 is the best value for feature-seekers.
- ✅ More modern features (Bluetooth Audio, USB Audio).
- ✅ Slimmest design with high portability.
- ✅ Best for casual players, home use, and beginners who want extra features.
Yamaha P-225 is the best value for serious pianists.
- ✅ Better piano sound and key action for a more authentic experience.
- ✅ More durable build and stage-ready connectivity.
- ✅ Best for those prioritizing quality over extra features.
In the end, your choice depends on whether you want a feature-packed, modern piano (Casio PX-S1100) or a high-quality, stage-ready instrument with better piano sound and feel (Yamaha P-225).
Final Verdict: Which One Should You Buy?
Choosing between the Yamaha P-225 and the Casio PX-S1100 depends on what matters most to you: authentic piano feel and sound, or modern features and convenience.
- The Yamaha P-225 is the better choice if you prioritize piano realism, build quality, and live performance capability. With its Graded Hammer Compact (GHC) action, CFX grand piano sound engine, and proper 1/4″ line outputs, it’s designed for serious pianists who want a more authentic playing experience. However, it lacks Bluetooth audio and USB audio recording, which might be a dealbreaker for some.
- The Casio PX-S1100 is the better choice if you want a feature-packed, ultra-slim digital piano with Bluetooth audio streaming, USB audio recording, and great portability. Its Smart Scaled Hammer Action is lighter than Yamaha’s, making it easier for beginners, and its sleek design is ideal for those who want a stylish, modern piano. However, its 1/8″ audio outputs aren’t as convenient for live performers.
Who Should Buy the Yamaha P-225?
✔️ Pianists who prioritize feel and sound quality
✔️ Live performers needing pro-grade audio outputs
✔️ Players looking for a long-term, durable instrument
Who Should Buy the Casio PX-S1100?
✔️ Home users who want Bluetooth and USB recording
✔️ Beginners who prefer a lighter key action
✔️ Musicians needing a portable, stylish piano
Both pianos are excellent, but if piano authenticity matters most, get the Yamaha P-225. If modern features and versatility matter more, get the Casio PX-S1100. 🎹