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Yamaha Clavinova CLP-635
The Yamaha Clavinova CLP-635 is a great example of what happens when the world’s largest maker of the finest acoustic pianos creates a digital piano.
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VRM physical modeling—the distinctive reverberation generated by the entire body of a concert grand piano
In a grand piano, sound resonates throughout the body of the instrument, producing a rich reverberation that envelops the listener in sound. This phenomena is reproduced perfectly in the Clavinova through enhanced Virtual Resonance Modeling (VRM). The original VRM calculates the various states of the strings for each of the 88 notes on the keyboard, from one instant to the next, and timing and depth of damper pedals pressed. The enhanced VRM now also calculates aliquot resonance in the upper octaves, and the full resonance of the soundboard, rim, and frame. This technology allows for vivid, bright, richly-varied expression that reflects the limitless number of factors inherent in piano performance.
From staccato to legato—superbly expressive sound that responds to the player’s touch
Featuring Yamaha Smooth Release technology, Clavinova offers the crisp tone heard when playing staccato as well as the lingering sound produced by releasing the keys more. This provides finely-nuanced response to the pianist’s playing.
Smooth tonal transformations perfectly matched to key pressure
Sound in an acoustic piano attenuates over a long time. Pianists can change the volume of the sound—as well as its dynamics—to achieve both mellow and bright tones by simply changing the pressure they apply to the keys.
The Clavinova features long, carefully-sampled recordings of notes on a piano, reproduces them in rich detail and utilizes unique Yamaha technologies to achieve smooth tonal transitions in response to the touch of the player.
Additionally, the Clavinova has been repeatedly tested and adjusted by numerous pianists in order to attain a performance feel similar to that of a grand piano.
The moment a pianist’s fingers are lifted from the keys of a grand piano, subtle changes occur in the instrument’s tone as the damper is lowered onto the strings to mute its sound. Key-Off samples features actual recordings of these changes, offering a faithful reproduction of the most subtle changes in the piano’s sound, allowing for a more realistic performance.
The Graded Hammer 3X Keyboard (GH3X)
The touch of the Clavinova keyboard has been praised by pianists for a performance feel that makes you forget you’re playing a digital piano, offering authentic response to the force of your touch and a natural key return. Utilizing the same hammering system and spring-less mechanism as a grand piano, GH3X actions accurately reproduce the touch of an acoustic piano from the heavy feel in the lower register to the lighter touch in the upper octaves.
Escapement mechanism of Clavinova Keyboards
The escapement mechanism in a grand piano moves the hammers away from the strings quickly after they strike them, in order to prevent any interference with string vibration. This mechanism produces a slight clicking sensation when the keys are pressed gently. Since Real Grand Expression offers players superb sound, touch and pedaling, we decided to create an escapement that delivers outstanding playability, repetition, and response without impeding performance. The Clavinova keyboards feature an escapement mechanism that reproduces this sensation near the bottom of the key dip. They have been designed in such a way that the click is discernible only on the lightest keystrokes, similar to the keyboard of a grand piano. These keyboards have been adjusted to provide additional friction that balances key repetition and response without impeding performance.
Synthetic ivory and ebony keytops—a pleasure to play even after hours of performance
Our fingers are more sensitive than we think, and for pianists, the texture of the piano keys is extremely important. The GH3X keyboard features white keys made from the highest quality synthetic ivory, developed independently by Yamaha. The black keys are finished in synthetic ebony. Synthetic ivory keytops reproduce the tactile surface of the real ivory keyboards once used in older acoustic pianos. It features highly absorbent material that prevents fingers from slipping even after hours of practice, while retaining the ideal texture and feel. Resulting from well over a century of experience in making acoustic pianos, this exclusive Yamaha technology achieves a finish that feels natural and comfortable. In addition to the feel, the appearance and fine texture of these keys is unmatched by any other digital piano, and is sure to inspire pianists from the moment they experience it.
Keyboard Stabilizers—unique Yamaha mechanisms for improved keyboard stability and durability
Keyboards fulfill the vital role of transforming emotion from your fingertips into sound and therefore, must be smooth to play in order to maintain superb touch for prolonged performances. That is why Yamaha has fitted Keyboard Stabilizers to all 88 keys, offering players a natural touch and improving the stability and durability of the keyboard.
Full-body resonance, just like an acoustic piano
Similar to an acoustic piano, the Clavinova is calibrated carefully, with speaker positioning and body materials checked to ensure that the entire instrument resonates optimally. For a sound image that is very close to the grand piano, these instruments feature Tone Escapement in several locations throughout the body that allow the sound from the speakers to be projected to the listener’s ears without being trapped inside the instrument. The higher-end models in the CLP-600 Series feature dedicated DSPs, amplifiers and speakers. This vastly improves sound production, ensuring that the volume and quality of sound heard by the performer is flawless, with the output from each speaker arriving at the performer’s ears in perfect synchrony.
The speakers attached to the body exhibit a phenomenon in which, if nothing is done, the volume of the sound will increase due to the resonant frequency of the body. Conversely, installing pipes with the same resonant frequency within the body suppresses this resonance. Acoustic optimizers utilize this phenomenon.
This improvement of the sound is something that has only been possible thanks to Yamaha‘s thorough knowledge of the internal acoustic characteristics of musical instruments.
A fully immersive concert grand experience—even with headphones
Yamaha’s advanced binaural sampling technology is now available on the Clavinova for the first time. The technology uses samples from the CFX, Yamaha’s acclaimed concert grand piano, recorded with specialized microphones that capture locational information and other nuances discerned by the human ear. The resulting sound is so natural, so enveloping, that you’ll soon forget you’re even wearing headphones at all.
Once you choose the Yamaha CFX Grand Voice and put headphones on, the binaural sampled sound is automatically ready and no additional settings are required. Now with or without headphones, you can fully enjoy the concert grand experience at home.
The Stereophonic Optimizer—a new kind of headphone experience
When using headphones, the Stereophonic Optimizer lets players enjoy the dispersed sound heard when sitting in front of an acoustic piano. With the Stereophonic Optimizer, Voices sampled from acoustic pianos* appear to come from the body of the instrument. This provides a comfortable, natural experience that removes the drawbacks of performing with headphones.
* The CFX Voice utilizes binaural sampling technology
USB Audio Recorder
Record performances to USB flash memory and create audio files* you can save and play back on a computer, share with friends or create a CD.
* Data is saved in WAV format
Connect the Clavinova to a computer or a USB memory device to manage your library.
1,461 mm (57-1/2″) (Polished finish: 1,466 mm (57-11/16″))
927 mm (36-1/2″) (Polished finish: 930 mm (36-5/8″))
459 mm (18-1/16″) (Polished finish: 459 mm (18-1/16″))
56.0 kg (123 lb, 7 oz) (Polished finish: 62.0 kg (136 lb, 11 oz)]
|Number of Keys||88|
GH3X (Graded Hammer 3X) keyboard: synthetic ebony and ivory keytops, escapement
|88-key Linear Graded Hammers||–|
|Number of Pedals||3|
Sustain (Switch), Sustain Contin uously, Sostenuto, Soft, Expression, Pitch Bend Up, Pitch Bend Down, Rotary Speed, Vibe Rotor, Song Play/Pause
|GP Response Damper Pedal||–|
|Type||Full Dots LCD|
|Size||128 x 64 dots|
|Key Cover||Key Cover Style||Sliding|
Yamaha CFX, Bösendorfer Imperial, CFX Binaural Sampling
Yes (CFX Grand Voice only)
|Virtual Resonance Modeling (VRM)||Yes|
|Polyphony||Number of Polyphony (Max.)||256|
|Preset||Number of Voices||36|
|Intelligent Acoustic Control (IAC)||Yes|
|Preset||Number of Preset Songs|
19 Voice Demo Songs + 50 Classics + 303 Lesson Songs
|Number of Songs||250|
|Number of Tracks||16|
Compatible Data Format
SMF (Format 0, Format 1)
SMF (Format 0)
USB Audio Recorder
.wav (44.1 kHz sample rate, 16-bit resolution, stereo)
.wav (44.1 kHz sample rate, 16-bit resolution, stereo)
|Tempo Range||5 ‒ 500|
|Transpose||-12 ‒ 0 ‒ +12|
414.8 ‒ 440.0 – 466.8 Hz (approx. 0.2 Hz increments)
|Scale Type||7 types|
Tuning, Scale Type, etc.
|Storage and Connectivity|
Total maximum size approx. 1.5 MB
USB flash drive
Standard stereo phone jack (x 2)
[IN] [OUT] [THRU]
|AUX IN||Stereo Mini|
|AUX OUT||[L/L+R] [R]|
|USB TO DEVICE||Yes|
|USB TO HOST||Yes|
|Amplifiers and Speakers|
|Amplifiers||30 W x 2|
|Speakers||16 cm x 2|
20 W (When using PA-300C AC adaptor)
|Auto Power Off||Yes|
PA-300C or an equivalent recommended by Yamaha
Owner’s Manual, Warranty*, “50 Classical Music Masterpieces” Music Book, Online Member Product Registration, Bench*, Power cord*/AC power adaptor*: PA-300C or an equivalent recommended by Yamaha *May not be included depending on your area. Check with your Yamaha dealer.