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Yamaha Clavinova CLP-645 Digital Piano

Clavinova is an innovative lineup of digital pianos that have continued to evolve while seeking to provide the touch and tone of a concert grand piano—the ultimate symbol of piano excellence.


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Discounted Price $3,499.99 to $3,999.99

Discounted Price $3,499.99 to $3,999.99
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Includes Curbside Delivery to your home or business. Please Call 800-472-6274 for details or questions.

The CLP-645 is the mid-range Clavinova CLP, offering powerful sound and a superb Natural Wood (NWX) keyboard action. It features the sounds of the flagship Yamaha CFX concert grand and the Bösendorfer Imperial that sound pristine through its bi-amplified internal sound system. And, the Clavinova Virtual Resonance Modeling emulates the more complex elements of playing these acoustic instruments. Bluetooth audio lets you stream music from your portable smart devices, wirelessly! Record your own performances and compositions using the built-in USB audio recorder to archive your musical achievements or share them with friends and family. Traditional on the outside but modern inside, this instrument is a great piano for musicians of all skill levels.

Firmware V2.0 is here, and offers some exciting features!
This firmware turns your USB to HOST port into a powerful audio & MIDI interface. Just connect with a single USB cable for audio/MIDI playback with a PC or iOS device. This allows you to record to, for example, Steinberg Cubase series products as audio or MIDI, without purchasing an Audio/MIDI interface separately. Firmware version 2.0 also enables compatibility with the intuitive Smart Pianist app. Smart Pianist turns your iOS device into a touch-screen controller for your digital piano, allowing you to easily select instrument Voices, adjust settings, and even learn how to play along with your favorite music. *Cubase series software is not bundled with this firmware, and must be purchased separately.

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 phenomenon 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.

Natural Wood X keyboard—the feel of an acoustic grand
Natural Wood X (NWX) keyboards are created using unrivaled expertise that Yamaha has acquired through more than a century of crafting fine pianos. Just as with grand pianos, the material used for Natural Wood X keyboards is cut from wood that has been carefully dried specifically for use in making musical instruments. Only the best wood from the finest part of each tree is selected, resulting in a keyboard that is more resistant to buckling and warping than common laminated wood keyboards. The Yamaha Natural Wood X keyboard features the same action and three-sensor configuration as Graded Hammer 3X keyboards, which accurately senses, and interprets the behavior of the keyboard for a response that feels very similar to that of a grand piano. This allows you to vividly perform smooth, flowing passages or light trills, techniques used in many pieces such as Für Elise.

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.

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.

  • Connect the Clavinova to a computer or a USB memory device to manage your library
  • Record performances to USB flash memory and create audio files you can save and play back
  • Stream music wirelessly with the Bluetooth feature
  • Multi-track song recorder: allows you to record your performance with a single touch
  • Includes power supply, owner's manual "50 classical music masterpieces" music book, and online member product registration

Get your Yamaha CLP-645 Clavinova Digital Piano today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy

Things You Will Get:

  • Digital Piano
  • Power Cable
  • Owner's Manual
  • "50 Classical Music Masterpieces" Music Book
  • Online Member Product Registration


by PowerReviews
Number of Keys 88
Type of Action Natural Wood X
Polyphony 256
Split Functionality Yes
Digital Display Yes
Preset Types 19 Voice Demo Songs, 50 Classics, 303 Lesson Songs
Effects Type Reverb, Chorus, Brilliance, Master Effect, Intelligent Acoustic Control (IAC), and Stereophonic Optimizer
Built-In Speakers Yes
Audio Playback Yes
Audio Input Types 1 x 1/8" (Aux In)
Audio Output Types 2 x 1/4"
Headphone Outputs 2 x 1/4"
Power Supply Included Yes
Power Supply Type IEC Cable
Stand Built-In
Bench Included No
Dimensions Rosewood, Black, and Dark Walnut Finish: 57.5" x 36.5" x 18.8" inches (WxHxD) Polished Finish: 57.7" x 36.6" x 18.8" inches (WxHxD)
Weight Rosewood, Black, and Dark Walnut Finish: 132 lbs, 4 oz. Polished Finish: 145 lbs, 8 oz
Series CLP Series
Model CLP-645
Warranty Info:

The manufacturer's warranty covers a LIMITED 3 YEAR WARRANTY ON DIGITAL PIANOS (P, CP, YDP, DGX640, DGX650) from date of purchase.  The warranty excludes damage from misuse, abuse, and contains other exclusions.  

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