When it comes to choosing a digital piano, especially for beginners or intermediate players, the market offers a plethora of options. Two models that often come up in discussions are the Donner DEP-20 and the Yamaha P-45. Both are popular in their price range, but they cater to slightly different needs and preferences. In this comprehensive review, we’ll delve into various aspects of these two digital pianos, including design, keyboard feel, sound quality, speakers, functions, connectivity, and overall value for money. By the end, you’ll have a clearer understanding of which instrument might be the better fit for you.
Donner DEP-20 vs Yamaha P-45 Comparison Chart
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| Feature | Donner DEP-20 | Yamaha P-45 |
|---|---|---|
 |  | |
| Price | Check the best price on Amazon | Check the best price on Amazon |
| Key Action | Fully weighted hammer action (not graded) | Graded Hammer Standard (GHS) |
| Number of Keys | 88 fully weighted keys | 88 fully weighted keys |
| Touch Sensitivity | Adjustable (3 levels) | Adjustable (3 levels) |
| Sound Engine | DSP Sampling Technology | AWM (Advanced Wave Memory) Sampling |
| Number of Voices | 238 | 10 |
| Polyphony | 128-note polyphony | 64-note polyphony |
| Speaker System | 20W total (10W x 2, front-facing) | 12W total (6W x 2, downward-facing) |
| Built-in Effects | Reverb, Chorus, EQ | Reverb (4 types) |
| Layer Mode (Dual Mode) | Yes (with volume control) | Yes (no volume control) |
| Split Mode | Yes (assign different voices to left/right hands) | No (only Duo Mode for teaching) |
| Duo Mode (Twin Piano Mode) | No | Yes (splits keyboard for teacher-student use) |
| Rhythms & Accompaniment | Yes (100 built-in rhythms) | No |
| Metronome | Yes | Yes |
| Recording Function | Yes (internal recording and playback) | No (must record via external device) |
| Connectivity – USB MIDI | Yes (USB-to-Host for MIDI communication) | Yes (USB-to-Host for MIDI communication) |
| Connectivity – 5-Pin MIDI | Yes (MIDI In/Out ports) | No |
| Headphone Jack | Yes (¼-inch) | Yes (¼-inch) |
| Line Out (AUX Output) | Yes (L/R AUX outputs for speakers/amplifiers) | No (must use headphone jack) |
| Bluetooth | No | No |
| Pedals | Comes with a 3-pedal unit (on furniture stand) | Includes a basic sustain pedal (optional 3-pedal unit available) |
| Stand Included | Often includes a wooden furniture stand | No (optional stand available) |
| Weight | 35 lbs (15.8 kg) | 25 lbs (11.5 kg) |
| Dimensions (W x D x H) | 52″ x 11.2″ x 7.5″ (132 x 28.5 x 19 cm) | 52.2″ x 11.6″ x 6″ (132.6 x 29.4 x 15.4 cm) |
| Best For | Beginners, budget-conscious buyers, those who want lots of features | Serious learners, those who want high-quality key action and sound |
| My individual reviews | Donner DEP-20 review | Yamaha P-45 review |
Final Thoughts:
- Choose the Yamaha P-45 if you want better key action, realistic piano sound, and long-term durability.
- Choose the Donner DEP-20 if you want more features, instrument voices, rhythms, and better connectivity at a lower price.
Design and Build Quality
When it comes to digital pianos, design and build quality play a crucial role in determining not only how the instrument looks in your home or studio but also how durable and portable it is. Both the Donner DEP-20 and the Yamaha P-45 have distinct approaches to design, reflecting their target audiences and price points. Let’s break down the construction, aesthetics, portability, materials, and overall usability of these two instruments.
1. Overall Aesthetic and First Impressions
The Yamaha P-45 and Donner DEP-20 take different design approaches, catering to different user preferences.
- Yamaha P-45: Yamaha is known for its sleek, minimalist designs, and the P-45 is no exception. The instrument has a matte black finish, which gives it a professional and understated look. There are no unnecessary design elements—just clean lines and a simple, elegant appearance. The branding is subtle, with a small “Yamaha” logo near the speaker area, adding to its professional aesthetic.
- Donner DEP-20: In contrast, the DEP-20 takes a slightly more modern approach. It has a more pronounced presence, with a slightly bulkier design due to its integrated control panel and LCD screen. The buttons and screen add a contemporary feel, making it appear more like a workstation keyboard than a traditional digital piano. Donner has opted for a more pronounced plastic sheen, which may not look as high-end as the Yamaha’s matte finish, but it does give the piano a more tech-forward appeal.
If you prefer a professional, stage-ready look, the Yamaha P-45 is the clear winner. But if you like functionality with a more modern control layout, the DEP-20 might be more appealing.
2. Size and Portability
One of the key factors in choosing a digital piano is how easy it is to transport and fit into your space. Whether you need a portable instrument for gigs or a stationary one for home practice can influence which model is right for you.
- Yamaha P-45: The P-45 is compact and lightweight, making it an excellent option for musicians who need a portable piano. It measures approximately 52.2 inches (132.6 cm) in width, 11.6 inches (29.4 cm) in depth, and 6 inches (15.4 cm) in height, and weighs around 25 lbs (11.5 kg). This makes it one of the lightest full-size digital pianos on the market. Because of its slim profile, it is easy to store or transport in a car for gigs or rehearsals.
- Donner DEP-20: The DEP-20, on the other hand, is larger and heavier. It measures 52 inches (132 cm) in width, 11.2 inches (28.5 cm) in depth, and 7.5 inches (19 cm) in height, and weighs approximately 35 lbs (15.8 kg). While it is not overly bulky, it is noticeably heavier than the Yamaha P-45. The added weight comes from its larger speaker system, integrated control panel, and additional functionality.
If portability is a key factor, the Yamaha P-45 is the better option. However, if you plan to keep your piano in one place, the DEP-20’s extra weight may not be a disadvantage.
3. Materials and Durability
Build materials directly impact how sturdy and long-lasting a digital piano will be. While neither of these models is built like a high-end concert grand, the materials used do differ in quality.
- Yamaha P-45: The P-45 is built to last. Yamaha has used high-quality plastics that feel solid and resistant to wear. The matte finish helps reduce the visibility of fingerprints and dust, maintaining a clean appearance over time. The keys are well-constructed, with a smooth surface that mimics the feel of a real acoustic piano without feeling overly plastic. The buttons are firm and responsive, ensuring they will withstand years of use.
- Donner DEP-20: The DEP-20 is also well-built for its price range, but it doesn’t quite match the premium feel of the Yamaha P-45. The plastic used in the chassis is sturdy but slightly more lightweight, which may make it feel a little less durable. The glossy finish, while visually appealing, is more prone to fingerprints and dust. The buttons and LCD screen are convenient, but some users report that the buttons feel less firm compared to Yamaha’s. The keys are also a bit more prone to wear over time, though this is mostly noticeable after extended use.
In terms of overall durability, the Yamaha P-45 has the edge due to its higher-quality materials and construction.
4. Control Panel and User Interface
Ease of use is another important consideration, especially for beginners or musicians who want quick access to functions without navigating a complex menu system.
- Yamaha P-45: Yamaha has kept the control panel as simple as possible. There are only a few buttons, and most functions are accessed through key combinations. While this contributes to the piano’s minimalist aesthetic, it can be frustrating for those who prefer direct access to settings like reverb, voice selection, and metronome settings.
- Donner DEP-20: The DEP-20 takes the opposite approach, featuring an LCD screen and a variety of buttons for quick access to settings. The LCD display makes it easier to navigate menus, change voices, and adjust settings without referring to a manual. This is a big advantage for users who want a more intuitive and user-friendly interface.
If you prefer a clean, minimalist design, the Yamaha P-45’s simple control scheme may be ideal. However, if you want quick access to features without memorizing key combinations, the Donner DEP-20’s LCD screen and control buttons make navigation much easier.
5. Stand and Pedal Options
Both pianos can be used on a table, portable stand, or furniture-style stand, but there are some differences in what’s offered.
- Yamaha P-45: Yamaha offers an optional wooden stand (L-85), which gives the piano a more polished, furniture-like appearance. However, this is sold separately, so if you’re on a budget, you may have to settle for a standard X-stand. The included sustain pedal is a basic footswitch-style pedal, which isn’t as good as a traditional piano-style sustain pedal.
- Donner DEP-20: The DEP-20 often comes with an optional wooden stand, which sometimes includes a three-pedal system. If you’re looking for a digital piano with a built-in furniture stand and pedals, the DEP-20 may offer better value since Yamaha sells its stand and pedals separately.
If you want a piano that looks great as a home fixture, the Donner DEP-20 with its optional furniture stand and pedals is a great value. However, Yamaha’s optional stand provides a more premium, polished aesthetic, even though it comes at an extra cost.
Final Verdict on Design and Build Quality
- If you prioritize portability, durability, and a professional minimalist aesthetic, the Yamaha P-45 is the better choice.
- If you prefer a feature-rich interface, built-in LCD screen, and optional furniture-style setup, the Donner DEP-20 may be a more suitable option.
Ultimately, both pianos have strong points in design, but the choice depends on your specific needs—whether it’s portability, simplicity, or additional features.
Keyboard Feel and Action
The feel of the keys is one of the most critical aspects of choosing a digital piano. Whether you’re a beginner, an intermediate player, or an experienced pianist, the way the keys respond to touch and mimic the feel of an acoustic piano can significantly impact your playing experience. The Yamaha P-45 and the Donner DEP-20 both aim to provide a realistic piano feel, but they do so with different key actions and mechanisms.
In this section, I will compare the two models in terms of key weighting, touch sensitivity, material quality, noise levels, and overall playing experience.
1. Key Weighting and Hammer Action
A well-weighted keyboard can make all the difference in how an instrument feels under your fingers. Both the Yamaha P-45 and the Donner DEP-20 come with fully weighted keys, but there are notable differences in their key action mechanisms.
- Yamaha P-45 – Graded Hammer Standard (GHS) Action
Yamaha’s Graded Hammer Standard (GHS) action is one of the most well-known key actions in entry-level digital pianos. The keys are heavier in the lower registers and lighter in the upper registers, mimicking the mechanics of an acoustic piano. This makes the P-45 a great option for players who want to build finger strength and proper technique. The GHS action is not the most advanced key action Yamaha offers (compared to their GH3 or NWX actions in higher-end models), but it’s reliable and consistent for its price range. The weighting is generally medium-heavy, meaning it feels more like an upright piano rather than a grand piano. Some players, especially beginners, may find it a little on the heavy side, which could make playing fast passages or long practice sessions slightly tiring. - Donner DEP-20 – Hammer Action Keyboard
The Donner DEP-20 also comes with fully weighted hammer-action keys, meaning the keys have resistance that simulates the mechanics of an acoustic piano. However, unlike the Yamaha P-45’s GHS action, Donner does not specify whether its action is graded (meaning whether the lower keys are heavier than the higher keys). In practical use, the DEP-20’s key action feels slightly different from the Yamaha P-45. The keys are weighted, but they tend to feel a little heavier and slower on the return, meaning that after pressing a key, it might take slightly longer to return to its resting position. This can be a minor inconvenience for fast, repeated notes or complex pieces that require agility.
Key Weighting Winner: Yamaha P-45
If you are serious about learning proper piano technique, the graded hammer action of the Yamaha P-45 makes it the superior choice. The DEP-20 is still good for beginners, but advanced players may find the action a bit sluggish compared to Yamaha’s.
2. Touch Sensitivity and Dynamic Response
Touch sensitivity refers to how well the digital piano responds to different levels of pressure when pressing the keys. A well-designed touch-sensitive keyboard should allow you to play soft pianissimo (pp) notes and powerful fortissimo (ff) notes, just like on an acoustic piano.
- Yamaha P-45
The Yamaha P-45 features adjustable touch sensitivity settings, allowing you to customize the response based on your playing style. There are three levels of sensitivity:- Soft: Requires a lighter touch to produce loud sounds.
- Medium (Default Setting): Balanced dynamic response, suitable for most players.
- Hard: Requires more force to produce louder sounds.
- Donner DEP-20
The DEP-20 also features adjustable touch sensitivity, but its dynamic response is less refined compared to the Yamaha P-45. The volume and tone changes are not as smooth, meaning that soft notes might still sound too loud, and loud notes may not have as much power as expected. Some users report that the sensitivity settings feel less natural, which can impact expressiveness, especially in classical or jazz music.
Touch Sensitivity Winner: Yamaha P-45
If expression and dynamic control are important to you, the Yamaha P-45 wins this category. The DEP-20 is decent for casual playing, but the touch response isn’t as refined.
3. Key Material and Texture
Key texture plays an important role in how comfortable the keys feel under your fingers, especially during long playing sessions.
- Yamaha P-45
The P-45’s keys have a matte finish on the black keys, which helps reduce finger slippage and improves grip during extended practice sessions. However, the white keys are glossy plastic, which can sometimes feel a little slippery under sweaty fingers. While Yamaha’s higher-end models (such as the P-125 or P-515) feature synthetic ivory keytops for a more realistic feel, the P-45 sticks with standard plastic keys. - Donner DEP-20
The DEP-20’s keys are entirely glossy plastic, including both the black and white keys. This makes them feel a bit cheaper and can lead to finger slippage, especially if your hands sweat while playing. Some users report that the keys feel too smooth, lacking the textured grip of higher-end pianos.
Key Material Winner: Yamaha P-45
Yamaha’s matte black keys give it a slight edge over the DEP-20, as they provide a better grip and a more comfortable playing experience.
4. Key Noise and Action Sound
Digital pianos with weighted keys can sometimes produce mechanical noise, especially when played with force.
- Yamaha P-45
The P-45’s key action is relatively quiet, but you will still hear some thudding noises when the keys are released quickly. However, this doesn’t interfere with practice sessions, and the noise is minimal compared to other entry-level digital pianos. - Donner DEP-20
The DEP-20’s key action is slightly noisier, with a more pronounced thump when the keys are released. Some users report that the keybed produces noticeable clicking sounds, especially when playing with force or rapid repetitions.
Key Noise Winner: Yamaha P-45
If you are playing in a quiet home or apartment, the Yamaha P-45’s quieter action makes it the better choice.
Final Verdict on Keyboard Feel and Action
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| Key Action | Graded Hammer Standard (GHS), good weight | Weighted keys, but slightly sluggish |
| Touch Sensitivity | Excellent, smooth dynamic response | Less refined, can feel uneven |
| Key Texture | Matte black keys, glossy white keys | Glossy keys (both black and white) |
| Key Noise | Relatively quiet | Noisier, more noticeable key thuds |
- If you want the most realistic piano feel, the Yamaha P-45 is the superior choice.
- If you’re on a budget and don’t mind slightly sluggish action, the Donner DEP-20 is still a good option.
For serious piano learners or experienced players, the Yamaha P-45 wins in this category due to its superior key action, realistic response, and better build quality. However, for hobbyists who prioritize affordability and features, the DEP-20 remains a viable alternative.
Sound Quality
Sound quality is arguably the most important factor when choosing a digital piano. After all, a digital piano should replicate the richness, depth, and expressiveness of an acoustic piano as closely as possible. While both the Yamaha P-45 and the Donner DEP-20 aim to provide an authentic piano experience, they achieve this goal in different ways and with varying degrees of success.
In this section, I will analyze the sound quality of both pianos, covering sound engine technology, polyphony, realism, tonal variety, sustain and decay, layering, and sound projection.
1. Sound Engine and Sampling Technology
The foundation of any digital piano’s sound quality is its sound engine—the technology used to produce and reproduce piano tones. Yamaha and Donner take two different approaches in this regard.
Yamaha P-45 – AWM (Advanced Wave Memory) Sampling
Yamaha is known for its high-quality piano samples, and the P-45 uses Yamaha’s AWM (Advanced Wave Memory) sound engine to generate its tones. This sampling-based approach captures the sound of a real acoustic piano and applies digital processing to enhance its depth and resonance.
- Dual-layer stereo sampling: The P-45 records an actual grand piano from different dynamic levels (soft, medium, and loud), layering the samples together to create a realistic transition between dynamics when playing softly or forcefully.
- Simple, natural piano tone: The acoustic piano sound on the P-45 is warm, clear, and natural, making it an excellent choice for players who want a realistic piano experience without artificial enhancements.
While the AWM sound engine does not use physical modeling or advanced resonance features found in Yamaha’s higher-end models (like the P-125 or P-515), it still delivers a rich and professional-quality tone for an entry-level digital piano.
Donner DEP-20 – DSP Sampling Technology
Donner’s approach to sound generation differs from Yamaha’s. The DEP-20 does not use a widely recognized sound engine, but instead relies on DSP (Digital Signal Processing) sampling technology.
- A large variety of sounds: Unlike the Yamaha P-45’s 10 built-in voices, the DEP-20 includes 238 instrument voices, ranging from pianos to strings, organs, synths, and more. While this makes the DEP-20 highly versatile, the quality of these sounds varies significantly.
- Piano tones are less detailed: While Donner attempts to replicate an acoustic piano, its sampled tones lack the depth and realism of Yamaha’s AWM samples. The transition between soft and loud notes is less smooth, and the overall tone can sound slightly synthetic compared to the P-45.
Sound Engine Winner: Yamaha P-45
If realistic piano tone is your priority, the Yamaha P-45 wins due to its high-quality stereo samples and more natural dynamic response. The DEP-20 has more sounds, but the piano tones do not sound as authentic.
2. Polyphony – How Many Notes Can Be Played at Once?
Polyphony refers to the number of notes a digital piano can produce at the same time. A higher polyphony count allows for more complex passages, richer sustain, and better layering of sounds.
- Yamaha P-45 – 64-note Polyphony: The P-45 provides 64-note polyphony, which is enough for most beginner and intermediate players. While not as high as Yamaha’s more advanced models (like the P-125 with 192-note polyphony), 64 notes are sufficient for classical, pop, and jazz music.
- Donner DEP-20 – 128-note Polyphony: The DEP-20 offers 128-note polyphony, meaning it can sustain more notes simultaneously without cutting off previous notes. This makes it slightly better for complex compositions, layered sounds, or sustained chords with multiple voices.
Polyphony Winner: Donner DEP-20
The DEP-20 has the edge here with double the polyphony of the Yamaha P-45. However, polyphony is only as good as the quality of the sound engine, so while the DEP-20 can sustain more notes, the Yamaha P-45 still produces a richer and more natural sound overall.
3. Realism and Expressiveness
A high-quality digital piano should be able to capture the nuances of a real acoustic piano, from the softest pianissimo (pp) to the most powerful fortissimo (ff).
- Yamaha P-45:
- Excellent dynamic range: The velocity-sensitive keys allow for subtle variations in tone, making the instrument feel more expressive.
- Natural sustain and decay: Notes gradually fade out realistically, without unnatural looping.
- More convincing resonances: Even though the P-45 lacks advanced string resonance or damper resonance simulation, its natural sampling process provides a more lifelike piano experience.
- Donner DEP-20:
- Less refined velocity control: The touch-sensitive keys work well, but the dynamic response isn’t as smooth as the Yamaha’s.
- Shorter sustain and decay: Notes don’t fade out as naturally, making the sound feel more artificial.
- Some voices sound artificial: While the DEP-20 has a large selection of sounds, many of them lack the realism needed for serious piano performance.
Realism Winner: Yamaha P-45
For an authentic and expressive piano sound, the Yamaha P-45 is the clear winner.
4. Sound Projection – Built-in Speakers
Both pianos come with built-in speaker systems, but they differ in power and clarity.
- Yamaha P-45:
- 12W total speaker power (6W per speaker)
- Well-balanced and clear sound, suitable for home practice
- Lacks deep bass response, but maintains clarity across all registers
- Donner DEP-20:
- 20W total speaker power (10W per speaker)
- Louder volume output, which can fill a larger room
- Less refined sound clarity – while it is louder, it may sound slightly harsh at high volumes
Speaker Winner: Donner DEP-20
The DEP-20 wins in raw speaker power, but the P-45 has clearer, more refined sound projection.
5. Sound Customization and Effects
The ability to customize your sound with reverb, chorus, and other effects can add depth and flexibility.
- Yamaha P-45:
- Basic reverb settings available
- No built-in equalizer or advanced effects
- Donner DEP-20:
- More customizable sound effects, including reverb, chorus, and equalizer settings
- Greater variety of tonal adjustments
Customization Winner: Donner DEP-20
The DEP-20 wins here for offering more sound customization options.
Final Verdict on Sound Quality
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| Sound Engine | AWM Sampling (Realistic) | DSP Sampling (Less Natural) |
| Polyphony | 64-note | 128-note |
| Realism | More expressive, natural decay | Less refined, slightly artificial |
| Speakers | 12W (Clear sound) | 20W (Louder but less refined) |
| Customization | Basic effects | More built-in effects |
- If you prioritize realistic piano sound, the Yamaha P-45 is the clear winner.
- If you want more polyphony, more built-in voices, and louder speakers, the Donner DEP-20 may be more appealing.
For serious piano learners, the Yamaha P-45 is the better choice. The DEP-20 is fun and feature-rich, but it doesn’t quite match the natural and expressive sound of Yamaha’s sampling technology.
Speakers and Sound Projection
A digital piano’s built-in speakers play a crucial role in how the sound is delivered, whether for personal practice, home performance, or even small gatherings. The quality of the speaker system affects not just volume output, but also clarity, depth, and realism.
In this section, we’ll compare the Yamaha P-45 and the Donner DEP-20 in terms of speaker power, clarity, frequency response, volume projection, and overall sound quality.
1. Speaker Power and Placement
Speaker power is measured in watts (W) and determines how loud and full the piano will sound through its built-in speakers. However, more watts don’t always mean better sound quality—speaker placement, design, and tuning also play a role.
Yamaha P-45 – 12W Speaker System (6W Per Side)
The Yamaha P-45 features a stereo speaker system with two 6-watt speakers, for a total output of 12W.
- Balanced and Clear Sound – The Yamaha P-45’s speakers are well-tuned to emphasize the natural warmth of the piano tone, making it ideal for home practice.
- Good Stereo Imaging – The left and right speakers provide a good sense of space, meaning that chords, melodies, and bass notes don’t sound compressed together.
- Downward-Facing Speakers – The speakers are positioned under the keyboard, meaning the sound projects downward and outward. This works well for a tabletop setup or an X-stand, but if placed on a soft surface like a bed or couch, the sound may feel muffled.
Donner DEP-20 – 20W Speaker System (10W Per Side)
The Donner DEP-20 is equipped with a more powerful speaker system, delivering 10W per speaker, for a total output of 20W.
- Higher Volume Output – The DEP-20’s extra power allows it to project sound more effectively, making it suitable for larger rooms or group settings.
- Front-Facing Speaker Design – Unlike the downward-firing speakers on the Yamaha, the DEP-20’s speakers project sound directly outward, making them more effective at delivering clear, direct sound to the player.
- Slightly Harsh High Frequencies – Some users report that at higher volumes, the DEP-20’s speakers can sound a little harsh or tinny, especially in the treble range.
Winner: Donner DEP-20 (Louder, More Direct Sound)
If raw volume and projection are your priorities, the Donner DEP-20 wins due to its higher wattage and front-facing speakers. However, Yamaha’s tuning and balance make up for its lower power.
2. Clarity and Frequency Balance
Beyond just power, the clarity and tonal balance of the speakers determine how natural the piano sounds.
Yamaha P-45 – Warm and Balanced Sound
The P-45’s speakers are designed to deliver a balanced, natural piano tone, making it ideal for acoustic piano emulation.
- Warm and natural mid-range – The piano feels full and resonant, especially in the middle octaves.
- Smooth bass response – While it lacks deep bass, the lower notes remain clear without distortion.
- Soft high notes – The treble range is not overly sharp, ensuring that high notes don’t sound too piercing.
Donner DEP-20 – Brighter and More Aggressive Sound
The DEP-20’s higher wattage and speaker placement give it a brighter and sometimes more aggressive tone, particularly in the treble range.
- Sharper treble – Some users report that high notes sound too bright at higher volumes.
- Less refined bass – While the speakers are louder, the lower frequencies don’t have as much definition as the Yamaha P-45.
- Better for layered sounds – Because the DEP-20 has more instrument voices, its brighter tone helps synthesizer sounds, organs, and electric pianos stand out.
Winner: Yamaha P-45 (More Balanced and Natural Sound)
If clarity and realism are the priority, the Yamaha P-45 wins due to its better frequency balance. However, if you prefer a brighter, more pronounced sound, the DEP-20 might be more appealing.
3. Volume Projection and Performance Usability
For some players, a digital piano’s speakers need to be loud enough to fill a room or be used for small performances without external amplification.
Yamaha P-45 – Adequate for Small Spaces
- Perfect for solo practice – The 12W speaker system is adequate for personal practice in a small or medium-sized room.
- Struggles in large spaces – If you plan to play for an audience in a large room or hall, the P-45’s speakers might not be powerful enough without external amplification.
Donner DEP-20 – More Power for Larger Rooms
- Louder volume means better projection – The 20W speakers give the DEP-20 an advantage in larger rooms or group settings.
- Good for casual performances – If you’re playing in a small gathering or church setting, the DEP-20’s louder output makes it more suitable for live performance.
Winner: Donner DEP-20 (Better for Larger Spaces)
If you need a digital piano that can fill a room with sound, the DEP-20 has a clear advantage due to its higher wattage and front-facing speakers.
4. External Speaker and Headphone Options
If built-in speakers aren’t enough, both pianos allow for external amplification and private practice through headphones.
Yamaha P-45
- Headphone jack for silent practice – Standard ¼-inch headphone output for practicing without disturbing others.
- No dedicated line-out for speakers – If you want to connect to external speakers, you’ll need to use the headphone jack, which isn’t ideal.
Donner DEP-20
- Headphone jack available for silent playing.
- Dedicated AUX outputs – Unlike the Yamaha, the DEP-20 includes separate audio output ports, making it easier to connect to external speakers or amplifiers.
Winner: Donner DEP-20 (More Connectivity Options)
The DEP-20’s AUX outputs make it more flexible for performances and recording compared to the P-45.
Final Verdict on Speakers and Sound Projection
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| Speaker Power | 12W (6W per side) | 20W (10W per side) |
| Speaker Placement | Downward-facing | Front-facing |
| Clarity and Balance | Warm, natural tone | Bright, sometimes harsh treble |
| Bass Response | Well-defined but not deep | Louder but less refined |
| Volume Projection | Adequate for home practice | More powerful, better for performances |
| External Speaker Options | No dedicated line-out | AUX outputs for easy speaker connection |
- If balanced, natural sound is your priority, the Yamaha P-45 is the better choice.
- If louder volume, front-facing speakers, and performance projection matter more, the Donner DEP-20 is a stronger option.
Ultimately, if you need refined sound for piano practice, go with the Yamaha P-45. But if you need more power and versatility for performances, the DEP-20’s louder output and additional connectivity make it a better choice.
Functions and Features
When choosing a digital piano, the functions and features it offers can make a significant difference in versatility, ease of use, and overall playing experience. While some players prefer a simple, no-frills digital piano that closely mimics an acoustic instrument, others enjoy having a wide variety of features to experiment with different sounds, play along with rhythms, or even record their own music.
The Yamaha P-45 and Donner DEP-20 take two different approaches when it comes to functionality:
- The Yamaha P-45 prioritizes simplicity, reliability, and ease of use.
- The Donner DEP-20 offers more sounds, effects, and features, making it a better option for experimentation.
In this section, I’ll compare the two digital pianos in terms of voice selection, effects, layering and splitting, recording capabilities, rhythms and accompaniments, and overall user interface.
1. Number and Variety of Sounds (Voices)
One of the most noticeable differences between the Yamaha P-45 and Donner DEP-20 is the number of built-in sounds they offer.
Yamaha P-45 – 10 High-Quality Voices
The P-45 includes 10 different instrument voices, which, while limited, are well-crafted and realistic:
- 2 Grand Pianos (Bright and Mellow)
- 2 Electric Pianos
- 2 Organs
- 2 Harpsichords
- 1 Vibraphone
- 1 Strings Voice
The focus here is on quality over quantity. Yamaha has carefully sampled these instruments, ensuring that each voice sounds authentic and natural.
Donner DEP-20 – 238 Instrument Voices
The DEP-20, in contrast, comes with a massive library of 238 different instrument voices, including:
- Acoustic and electric pianos
- Various organs and harpsichords
- Strings, synths, and choirs
- Brass, woodwinds, and orchestral sounds
- Percussion and world instruments
While the sheer variety is impressive, the quality of the sounds varies. Some voices, particularly the piano and strings, sound decent, but others feel more artificial or synthesized.
Winner: Donner DEP-20 (More Variety, Yamaha Wins in Quality)
If you need realistic piano sounds, Yamaha is the better choice. However, if you want tons of different instruments to experiment with, the DEP-20 is the clear winner.
2. Sound Effects and Customization
Effects such as reverb, chorus, and EQ can enhance the sound of a digital piano, allowing players to create a richer, more immersive experience.
Yamaha P-45 – Basic Reverb
The Yamaha P-45 keeps things simple, offering only a basic reverb effect with four different levels:
- Room – Light reverb, simulating a small room
- Hall 1 – Simulates a small concert hall
- Hall 2 – A larger, more spacious hall sound
- Stage – A natural reverb for live performance
There are no built-in chorus, delay, or EQ options, making the P-45 less customizable.
Donner DEP-20 – Multiple Effects and Adjustments
The DEP-20 includes:
- Reverb (with multiple presets)
- Chorus (adds a thicker, more layered sound)
- EQ Adjustments (allowing users to tweak bass, mid, and treble frequencies)
These additional effects make the DEP-20 more flexible for those who like to tweak and customize their sound.
Winner: Donner DEP-20 (More Effects and Customization)
For those who want to experiment with effects, the DEP-20 offers more options. However, if you prefer a pure, natural piano tone, the Yamaha P-45 still holds its ground.
3. Dual Mode (Layering Sounds)
Yamaha P-45 – Basic Layering
The P-45 allows two sounds to be layered together, meaning you can combine:
- Piano + Strings
- Electric Piano + Choir
- Organ + Harpsichord
However, layer volume cannot be adjusted independently, meaning both sounds play at the same volume level.
Donner DEP-20 – More Versatile Layering
The DEP-20 also includes dual mode, but with additional control:
- You can adjust the volume balance between the two layered sounds.
- More voices mean more layering possibilities.
Winner: Donner DEP-20 (More Customization in Layering)
Both models allow layering, but the DEP-20 provides more control and variety.
4. Split Mode (Dividing the Keyboard Into Two Sounds)
Yamaha P-45 – Lacks a True Split Mode
The P-45 does not include a traditional split mode. Instead, it features Duo Mode, which allows:
- The keyboard to be split into two identical sections for teacher-student lessons.
Donner DEP-20 – Full Split Mode
The DEP-20 allows:
- The keyboard to be split between two different instrument voices (e.g., Bass on the left, Piano on the right).
- Independent volume control for each side.
Winner: Donner DEP-20 (More Versatile Split Mode)
If you want to split the keyboard between two instruments, the DEP-20 offers greater flexibility.
5. Built-In Rhythms and Accompaniments
Yamaha P-45 – No Built-In Rhythms
The P-45 is focused on piano playing only, meaning it does not include drum patterns or auto-accompaniment features.
Donner DEP-20 – 100 Built-In Rhythms
The DEP-20 includes:
- 100 rhythm accompaniments, covering genres like pop, rock, jazz, Latin, and classical.
- Auto-accompaniment features, making it easier to play along with a virtual backing band.
Winner: Donner DEP-20 (More Fun and Versatility for Beginners)
If you enjoy playing along with rhythms or composing music, the DEP-20 offers a lot more options.
6. Recording and Playback
Yamaha P-45 – No Internal Recording
The P-45 does not have an internal recording function, but you can use its USB-to-host connection to record MIDI to a computer.
Donner DEP-20 – Built-In Recording
The DEP-20 allows direct recording and playback, making it easier to capture ideas without external software.
Winner: Donner DEP-20 (Built-In Recording Feature)
For those who want to record directly on the piano, the DEP-20 is the better option.
7. User Interface and Navigation
Yamaha P-45 – Minimalist Button Layout
- Fewer buttons, clean and simple interface.
- However, changing settings requires button + key combinations, which can be confusing for beginners.
Donner DEP-20 – LCD Screen and Direct Controls
- Built-in LCD screen for easier navigation.
- Dedicated buttons for voice selection and effects, making it more intuitive.
Winner: Donner DEP-20 (Easier to Use and Navigate)
If you prefer a user-friendly experience, the DEP-20’s LCD screen and buttons make it more accessible.
Final Verdict on Functions and Features
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| Number of Sounds | 10 (High Quality) | 238 (More Variety) |
| Effects | Basic reverb | Reverb, chorus, EQ |
| Layering | Yes (Limited) | Yes (More Control) |
| Split Mode | No (Only Duo Mode) | Yes (Split Keyboard) |
| Rhythms | None | 100 Auto-Accompaniment Styles |
| Recording | No Internal Recording | Built-In Recording |
| User Interface | Basic buttons, no screen | LCD screen, more controls |
- If you want a simple, piano-focused experience, the Yamaha P-45 is the better option.
- If you want more features, rhythms, effects, and versatility, the Donner DEP-20 is the winner.
Connectivity
Connectivity is an essential factor when choosing a digital piano, especially if you plan to use your instrument for recording, performances, or connecting to external devices like computers, tablets, or external speakers. The Yamaha P-45 and Donner DEP-20 offer different levels of connectivity, catering to different types of users.
In this section, I’ll compare both models based on their port options, USB and MIDI functionality, headphone and speaker connectivity, and overall versatility in different playing environments.
1. USB and MIDI Connectivity
MIDI (Musical Instrument Digital Interface) allows digital pianos to send and receive musical data to computers and other MIDI-compatible devices. This feature is crucial for musicians who want to record music, use virtual instruments (VSTs), or integrate their piano into a digital audio workstation (DAW).
Yamaha P-45 – Basic USB-to-Host MIDI
The Yamaha P-45 includes a USB-to-host port, allowing it to connect to a computer for MIDI communication.
- MIDI over USB – The P-45 can send MIDI signals directly to a DAW (like GarageBand, Ableton, or FL Studio) for recording or music production.
- No Traditional MIDI Ports – The P-45 lacks dedicated 5-pin MIDI in/out ports, meaning you cannot connect it directly to external MIDI hardware (such as synthesizers or external sound modules).
Donner DEP-20 – USB and Traditional MIDI Connectivity
The Donner DEP-20 offers both USB-to-host and traditional 5-pin MIDI in/out ports, making it more versatile for connecting to external gear.
- MIDI over USB – Just like the Yamaha P-45, the DEP-20 can send MIDI data to a computer for recording and music production.
- Dedicated MIDI In/Out Ports – The inclusion of 5-pin MIDI ports allows the DEP-20 to interface with external MIDI devices, such as:
- Synthesizers
- External sound modules
- MIDI controllers
Winner: Donner DEP-20 (More MIDI Options)
While both pianos support USB MIDI, the DEP-20’s additional MIDI in/out ports make it more versatile for advanced setups.
2. Headphone Connectivity (Silent Practice)
A headphone jack is essential for silent practice, allowing players to play without disturbing others.
Yamaha P-45 – Standard Headphone Jack
- Includes a ¼-inch (6.35mm) headphone jack, allowing for silent practice.
- Works with any standard pair of wired headphones (adapter may be needed for some models).
- No dual headphone option – The P-45 only has one headphone port, meaning a teacher and student cannot listen at the same time.
Donner DEP-20 – Standard Headphone Jack
- Also includes a ¼-inch headphone jack for silent practice.
- Similar to the P-45, it only supports one pair of headphones at a time.
Winner: Tie (Both Offer a Standard Headphone Jack)
Both models support silent practice, and their headphone connectivity is nearly identical.
3. External Speaker and Amplifier Connectivity
A common limitation of entry-level digital pianos is their built-in speakers, which may not be powerful enough for performances or large spaces. This makes external speaker connectivity an important feature.
Yamaha P-45 – No Dedicated Line Out (Only Headphone Jack)
One major drawback of the P-45 is that it does not have dedicated line-out ports.
- To connect to external speakers or amplifiers, you have to use the headphone jack, which is not ideal because:
- It may cause audio degradation.
- You might need additional adapters or splitters.
- This can be a limitation for live performances where a direct line-out connection would provide better sound quality.
Donner DEP-20 – AUX Output for External Speakers
The DEP-20 includes dedicated auxiliary (AUX) output ports, making it much easier to connect to external sound systems.
- Separate left and right AUX outputs – Allow for stereo output to external speakers or amplifiers.
- No need to rely on the headphone jack, ensuring better audio quality when using external sound systems.
Winner: Donner DEP-20 (Better External Speaker Connectivity)
If you plan to perform using external speakers or amplifiers, the DEP-20 is the better choice due to its dedicated AUX outputs.
4. Bluetooth Connectivity
Bluetooth functionality can be useful for:
- Wireless MIDI transmission (connecting to apps like GarageBand or Simply Piano).
- Playing along with backing tracks from a phone or tablet.
Yamaha P-45 – No Bluetooth
- The P-45 does not include Bluetooth, meaning:
- It cannot send MIDI wirelessly to a phone or tablet.
- It cannot stream audio wirelessly to its speakers.
- You can still use a wired USB connection for MIDI communication.
Donner DEP-20 – No Bluetooth Either
- The DEP-20 also lacks Bluetooth connectivity.
- Like the P-45, USB must be used for MIDI functionality.
Winner: Tie (Neither Piano Offers Bluetooth)
Both models lack Bluetooth connectivity, which is becoming more common in newer digital pianos.
5. App Compatibility and Smart Device Integration
Many modern digital pianos integrate with learning apps and music production software, enhancing the educational and creative experience.
Yamaha P-45 – Compatible with Yamaha Smart Pianist App
- Can be connected via USB to use Yamaha’s Smart Pianist App, which:
- Displays chords and music scores for practice.
- Allows users to adjust piano settings from a phone or tablet.
Donner DEP-20 – No Proprietary App Support
- The DEP-20 does not have a dedicated app.
- It still supports USB-MIDI communication, meaning it can work with:
- GarageBand
- Synthesia
- Simply Piano
Winner: Yamaha P-45 (Better App Integration)
If you want smart device integration, the Yamaha P-45 is the better choice because of Yamaha’s Smart Pianist app compatibility.
Final Verdict on Connectivity
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| USB MIDI | Yes (USB-to-host) | Yes (USB-to-host) |
| Traditional MIDI Ports | No | Yes (MIDI In/Out) |
| Headphone Jack | Yes (1/4-inch) | Yes (1/4-inch) |
| Line Out for Speakers | No (Uses headphone jack) | Yes (AUX Out) |
| Bluetooth | No | No |
| App Integration | Yes (Yamaha Smart Pianist) | No proprietary app |
| Best For | Recording via USB, Smart App Features | External speakers, MIDI gear, versatility |
- If you want to connect to a smart app and record via USB, the Yamaha P-45 is better.
- If you need external speaker connections and MIDI in/out ports, the Donner DEP-20 wins.
For home practice and smart integration, go with the Yamaha P-45. If you plan to connect to external gear, amplifiers, or perform live, the Donner DEP-20 is the better option.
Value for Money
When purchasing a digital piano, one of the most important considerations is value for money. A good instrument should not only fit within your budget but also offer the best balance of quality, features, and longevity.
Both the Yamaha P-45 and the Donner DEP-20 cater to budget-conscious buyers, but they do so in different ways. Yamaha relies on its trusted brand reputation, high-quality sound, and durability, while Donner offers more features and accessories for a lower price.
In this section, we will compare the two digital pianos based on price, build quality, included accessories, long-term reliability, and overall cost-effectiveness.
1. Price Comparison
One of the biggest factors in determining value for money is price. The Yamaha P-45 and Donner DEP-20 are in different price ranges, which directly impacts their perceived value.
Yamaha P-45 – A More Premium Entry-Level Option
- The Yamaha P-45 is priced at around $500–$600, depending on whether you purchase it with a stand and sustain pedal.
- Yamaha is a well-established brand, so its products tend to hold their value well over time.
- The higher price reflects the build quality, sound engine, and brand reliability.
Donner DEP-20 – A Budget-Friendly Alternative
- The Donner DEP-20 is much more affordable, priced around $300–$400, often including a furniture stand and three-pedal unit.
- Donner is a newer brand, which allows it to offer more features at a lower price to attract customers.
- However, the build quality and sound engine may not be as refined as Yamaha’s.
Winner: Donner DEP-20 (More Affordable)
If you are on a tight budget, the DEP-20 offers more features for less money. However, the Yamaha P-45’s durability and brand reputation may justify its higher cost.
2. Build Quality and Durability
The longevity of a digital piano affects its value—a cheap instrument that breaks quickly is not a good investment.
Yamaha P-45 – Reliable and Durable
- Yamaha digital pianos are known for their exceptional build quality, and the P-45 is no exception.
- The materials feel sturdy, and the keys are built to last, even with daily use.
- Yamaha pianos tend to last 5-10 years or more with proper care.
Donner DEP-20 – Decent, but Not as Robust
- The DEP-20 is well-built for its price, but the materials feel more plasticky than Yamaha’s.
- The key action may degrade faster over time, especially with frequent use.
- Donner is a newer brand, so long-term reliability is less proven.
Winner: Yamaha P-45 (More Durable and Long-Lasting)
If you are looking for an instrument that will last for many years, the Yamaha P-45 is a safer investment.
3. Included Accessories
A piano’s value is also determined by what comes in the box—does it include essential accessories, or do you have to buy them separately?
Yamaha P-45 – Basic Accessories
- Includes a basic sustain pedal (but it’s a small, plastic footswitch).
- No stand included (must be purchased separately).
- Comes with a music rest and power adapter.
Donner DEP-20 – Generous Accessories
- Often comes with a furniture stand and three-pedal unit, making it feel more like a traditional piano.
- Includes a better sustain pedal than Yamaha’s default footswitch.
- Also includes a music rest and power adapter.
Winner: Donner DEP-20 (More Accessories for the Price)
If you want a complete setup without spending extra money, the DEP-20 offers more accessories out of the box.
4. Features vs. Simplicity – What Are You Paying For?
Yamaha P-45 – Paying for Quality, Not Features
- The P-45 is more expensive, but you are paying for:
- Better key action (GHS system).
- More realistic piano sound (AWM sampling).
- Superior durability and reliability.
- It lacks extra features like multiple instrument voices, rhythms, and effects.
Donner DEP-20 – Paying for More Features
- The DEP-20 is cheaper but includes:
- More instrument sounds (238 vs. 10).
- More effects (reverb, chorus, EQ adjustments).
- Split mode, dual mode, and rhythms.
- The trade-off is that its sound quality and key action are not as refined as Yamaha’s.
Winner: It Depends on What You Need
- If you want a simple, high-quality digital piano for serious learning, choose the Yamaha P-45.
- If you want a feature-packed piano for a lower price, choose the Donner DEP-20.
5. Resale Value and Brand Trust
A digital piano is an investment, and resale value matters if you plan to upgrade later.
Yamaha P-45 – Strong Resale Value
- Yamaha’s brand reputation ensures that its pianos hold their value well.
- A used P-45 in good condition can be resold for $350–$450, making it a good long-term investment.
Donner DEP-20 – Lower Resale Value
- Donner is not as well-known as Yamaha, so its pianos depreciate faster.
- A used DEP-20 may only resell for $150–$250, since many people prefer to buy from established brands.
Winner: Yamaha P-45 (Better Resale Value and Brand Trust)
If you want a piano that will maintain its value over time, the Yamaha P-45 is the better investment.
Final Verdict on Value for Money
| Feature | Yamaha P-45 | Donner DEP-20 |
|---|---|---|
| Price | $500–$600 | $300–$400 |
| Build Quality | High-quality materials, very durable | Decent but more plastic, less durable |
| Longevity | 5–10+ years | 3–5 years |
| Included Accessories | Basic sustain pedal, no stand | Stand, 3-pedal unit, better sustain pedal |
| Features | Simple, high-quality sounds | More voices, rhythms, and effects |
| Resale Value | Holds value well | Depreciates faster |
- If you want a digital piano that lasts for years and holds value, the Yamaha P-45 is the better investment.
- If you are on a budget and want more features and accessories for a lower price, the Donner DEP-20 is the better deal.
Ultimately, the choice depends on what you prioritize. If you are looking for a reliable, high-quality piano for long-term use, the Yamaha P-45 is worth the extra cost. However, if you are a beginner or casual player who wants the most features for the lowest price, the Donner DEP-20 provides incredible value.
Conclusion
Choosing between the Yamaha P-45 and the Donner DEP-20 ultimately depends on your needs, preferences, and budget. Both digital pianos cater to different types of players, offering unique advantages and trade-offs.
Yamaha P-45 – The Safe, High-Quality Choice for Serious Pianists
The Yamaha P-45 is an excellent option for those who prioritize authentic piano feel and sound quality. Its Graded Hammer Standard (GHS) key action provides a realistic playing experience, making it a great choice for serious learners and intermediate players who want to develop proper technique. The AWM stereo sampling ensures that the piano sounds natural, warm, and expressive, closely resembling an acoustic piano.
However, the P-45 is relatively limited in features, offering only 10 voices, no accompaniment rhythms, and no built-in recording functions. It is also more expensive than the DEP-20, and lacks dedicated AUX outputs for external speakers. But its build quality, durability, and strong resale value make it a smart long-term investment.
Donner DEP-20 – The Feature-Packed, Budget-Friendly Alternative
The Donner DEP-20 is a fantastic option for beginners and casual players who want more features for a lower price. It offers 238 instrument voices, built-in rhythms, and an LCD screen for easy navigation, making it a fun and versatile instrument. It also includes dedicated AUX outputs and a three-pedal unit, making it more flexible for performances and home setups.
However, the key action is slightly heavier and less refined than Yamaha’s, and the sound quality—while decent—lacks the realism of the P-45.
Final Recommendation
- If you want the best piano feel, sound quality, and long-term reliability, choose the Yamaha P-45.
- If you want more features, sounds, and value for a lower price, the Donner DEP-20 is a great alternative.