Yamaha CLP 645

yamaha clp 625 pianos

Powerful sound and a superb wooden keyboard offer unprecedented levels of versatility to pianists.

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.

Natural Wood X keyboard

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 a three-sensor configuration, 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.

CLP 645 Specs


Finish Polished Ebony, Black, and Dark Rosewood, Dark Walnut
Weight 132 lbs
Keyboard Type NWX (Natural Wood X) keyboard: wooden keys (white only), synthetic ebony and ivory keytops, escapement
Touch Sensitivity Hard2/Hard1/Medium/Soft1/Soft2/Fixed
Piano Sound Yamaha CFX, Bösendorfer Imperial, CFX Binaural Sampling
Polyphony 256
Preset Songs 19 Voice Demo Songs + 50 Classics + 303 Lesson Songs
Internal Memory Total maximum size approx. 1.5 MB
Amp/Speakers 25W + 25W x 2, (16cm + 8cm) x 2


Connect wirelessly for Bluetooth© audio
You can play music through the audio system on the Clavinova by using a Bluetooth-enabled smart device. You can stream audio data such as mp3 files, as well as audio from apps. You can enjoy playing along with any of the songs from the music library on your smart device.

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.

USB Connectivity
Connect the Clavinova to a computer or portable device to interact with a variety of educational, entertainment or creative applications.

PDF Comparision Chart on all CLP 600 Models:
View Chart





"Yamaha" is a registered trademark of Yamaha Corporation.
Five-Star Lifetime Trade-Up Policy


If you ever want to trade the piano you have purchased from us, we'll credit you 100% of the price you paid towards any piano in our stock of equal or higher value.
Trade-Up Policy

Pre-Owned Pianos

Pre-Owned Pianos Program

Our used inventory is priced to sell quickly. Most of our used pianos are tagged at a “fraction of their new price". Choose from pre-owned grands, uprights and digitals.
Pre-Owned Pianos

Piano Rentals & Services

Piano Rentals

Falcetti Pianos offers attractive pricing on a wide-range of pianos, from $59.00 - $179.00 per month for Clavinova, Hybrid and Acoustic models. Rental fees can be applied toward purchase.

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Piano Moving

From delivering and setting up a
1400 lb Yamaha 9' concert grand piano, to delivering your piano to its new home, we can professionally handle all your piano moving needs.

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Piano Tuning

Having your piano tuned on a regular schedule by a good piano tuner will protect your investment, as well as provide you with a well-voiced and well-tuned instrument.

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Artist Services

Falcetti Pianos maintains concert ready rental pianos for performance and promotional events throughout New England. Select from professional uprights and grands.

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Falcetti Pianos - Natick
579 Worcester St., RT9 W
Natick, MA 01760
 508.655.1117

Monday - Friday 11:00am to 6:00pm
Saturday 10:00am to 5:00pm
Sunday 12:00pm to 5:00pm

Falcetti Pianos - Springfield
1755 Boston Road, STE#3
Springfield, MA 01129
 413.543.1400

Tuesday - Friday 10:00am to 6:00pm
Saturday 10:00am to 5:00pm
Sunday & Monday by Appointment

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