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Comparison Yamaha CLP-645 vs Yamaha CLP-635

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Yamaha CLP-645
Yamaha CLP-635
Yamaha CLP-645Yamaha CLP-635
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Main
Bluetooth module
Bodystationarystationary
Cover
Built-in pedals
Keys
Number of keys88 шт88 шт
Sizefull sizefull size
Mechanicsmalleusmalleus
Sensitivity adjustment
Rigidityweightedweighted
Specs
Polyphony256 voices256 voices
Built-in timbres36 шт36 шт
Auto accompaniment
Accompaniment styles20 шт20 шт
Learning mode
Tempo change5 – 5005 – 500
Metronome
Sequencer (recording)
Built-in compositions
Effects and control
Timbres layering
Keyboard split
Octave shift
Reverberation
 /6/
 /6/
Chorus
 /3/
 /3/
Brightness
 /7/
 /7/
Transposition
Fine tuning
More featuresmater effect (11)master effect (11)
Connectors
Inputs
Mini-jack (linear)
MIDI in
USB to device (type A)
Mini-jack (linear)
MIDI in
USB to device (type A)
Outputs
USB to host (type B)
MIDI out
MIDI thru
USB to host (type B)
MIDI out
MIDI thru
Headphone outputs2 шт2 шт
Linear outputs2 шт2 шт
General
Built-in acoustics100 W60 W
Number of bands21
Displaymonochromemonochrome
Dimensions (WxHxD)1461x927x459 mm1461x927x459 mm
Weight66 kg62 kg
Color
Added to E-Catalogjune 2017june 2017

More features

Additional features and sound customization options provided by the instrument in addition to those listed above. In this paragraph, usually, various original proprietary technologies and solutions are indicated; the specific meaning of these functions is best specified in the documentation for the tool.

Built-in acoustics

The power of the native acoustics installed in the Digital Piano.

This indicator directly affects the maximum volume that the instrument is able to produce "on its own", without connecting external speakers. At the same time, it is worth noting that many manufacturers go to the trick and indicate in the characteristics not the rated power (rms power when operating at full volume), but the peak power, which is the highest power that the acoustics can deliver at short “ups” of volume. Peak power values can be quite impressive — in the tens and hundreds of watts — but these figures have a very indirect relation to the actual capabilities of the speakers. Therefore, before choosing, it is worth clarifying what kind of power is mentioned in the characteristics. To do this, it is not necessary to look for detailed data on the instrument, it is enough to compare the power of the speakers with the power consumption (see below): if the claimed power of the acoustics is greater than the power consumption of the entire instrument, then the manufacturer indicated exactly the peak value.

Number of bands

The number of bands provided in the Digital Piano's native acoustics.

In single-way acoustics, the speakers are responsible for reproducing the entire frequency range. Such systems are simple and inexpensive, but their amplitude-frequency response is far from perfect — most often they reproduce the mids well, but the bass turns out to be weak and unsaturated, the high frequencies are fuzzy and blurry. This is due to the fact that for each frequency there are separate requirements for the design of the speaker, and it is impossible to combine them in one speaker.

Thus, loudspeakers, including the built-in speakers of digital pianos, can be split into bands when the design provides for specialized speakers for a certain group of frequencies. The most advanced variant found in digital pianos is three-way, with separate sets of drivers for bass, mids, and treble. This allows you to achieve high-quality and reliable sound throughout the entire range, but complicates and increases the cost of the design. Therefore, three-way acoustics are rare, mainly in top-class instruments. But in mid-range instruments, two-way speakers are more often used (high frequencies on one set of speakers, medium plus low frequencies on the other).
Yamaha CLP-645 often compared
Yamaha CLP-635 often compared