Yamaha ARIUS YDP-S51 Digital Piano Information, Specifications and Resources

Author: Andy Merrett / Data Driven

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Yamaha ARIUS YDP-S51

Overview

The Yamaha ARIUS YDP-S51 is a digital piano released in 2012. It is aimed at those primarily wanting a quality piano sound and keyboard feel.

The ARIUS YDP-S51 has 88 fully weighted full sized keys with touch sensitivity but no aftertouch. It has 128 notes of polyphony. It has 10 on board sounds including pianos and real world sounds, and a sustain/damper pedal.

It has the ability to record and play back user performances. It has built-in MIDI capabilities. It has no built-in learning system. It has a built-in amplifier and speakers. It runs from AC power.

The keyboard is a decent choice for children. It's a part of the YDP family of instruments.

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Disclosure

Check out the latest Yamaha digital pianos on Amazon

As the Yamaha ARIUS YDP-S51 is 14 years old, you may find used models and spare parts on ebay.

Specifications

Form

Number of Keys: 88
Key Weight: Piano
Key Size: Full
Touch Sensitive:
Aftertouch:

Sound

Number of Voices: 10
Polyphony: 128
Sound Generation: Pure CF Sound Engine
Piano Sounds:
Real World Sounds:
Sounds Editable:
Accompaniments:

Extra Features

Recorder/Sequencer:
Tutorials:

Communication

MIDI:
USB:
Tablet Connectivity:

Power

AC Power:
Batteries:

Audio

Speakers:
Audio Out:
Audio In:

Pedals

Sustain Pedal:
Soft Pedal:
Expression Pedal:

Release Info

Year: 2012
RRP: Unknown

Description

A new slim-line ARIUS with authentic piano quality

The design of YDP-S51 is derived from that of an upright piano both visually and ergonomically. Key elements for the pianist such as the music rest and pedals are precisely located to achieve a comfortable playing position while the key cover mechanism features the gentle, soft-close action found on many traditional pianos. This attention to detail, combined with Yamaha's renowned piano technology, will provide you with many years of enjoyment.

A rich piano sound to satisfy your expressiveness

The piano sound is created by Yamaha's "Pure CF Sound Engine", the same technology which has earned high praise in the renowned Clavinova range. Put simply, it lets you enjoy a playing response and expressive capability beyond your expectation of a digital piano. 128 note polyphony ensures that YDP-S51 can handle demanding repertoire, even in complex passages, without losing notes.

YDP-S51 features Yamaha's latest sound engineering technology, "Acoustic Optimizer"

How can the incredible sound of YDP-S51 be produced from such a compact instrument? The answer is "Acoustic Optimizer", a new technology which is unique to Yamaha. The "Acoustic Optimizer" system has been created to enrich and control resonance by physically adjusting the flow of sound waves, thanks to its design and positioning within the instrument. The combination of Acoustic Optimizer and digital technologies gives YDP-S51 an incredible expressive capability.

Natural touch with Graded Hammer (GH) keyboard

YDP-S51 is the first slim-line ARIUS piano to feature a Graded Hammer (GH) Keyboard. Yamaha has used its heritage and know-how in piano manufacturing to achieve a keyboard that offers a natural feel with expressive playability. This is achieved by the subtle weight variations from the low end of the keyboard, which is heavier to the touch, while the action becomes gradually lighter as you move towards the higher notes.

Three pedals for precise control

YDP-S51 features three sturdy metal pedals. Half-pedalling capability, together with the Damper Resonance function give fine control to the player and replicate the delicate nuances of an acoustic piano.

Convenient features to support your daily practice and development

- Intelligent Acoustic Control For pianists who want to practice quietly, this function automatically adjusts the sound so that you can still experience a balanced, rich tone even at low volumes. For silent practice, a headphone connection socket is provided

- Duo Mode This new performance mode enables you to split the keyboards into two with the same register. As both players can use sustain pedals during this mode, it is very convenient for lesson and duet playing.

- 2 track recording The built-in memory enables you to record your performance. You can even record a song in two parts, allowing you to play piano duets all by yourself. - Metronome function For effective practice, the accurate tempo of a metronome is essential. You can also use the metronome function while recording.

- USB to HOST The USB TO HOST port enables the transfer of information between your ARIUS and a suitably-equipped computer.

- Eco-friendly auto power off function After 30 minutes of inactivity the instrument will automatically power off to save energy.

FAQ

What year was the Yamaha ARIUS YDP-S51 launched?

This instrument was launched in 2012

What other models did Yamaha release in 2012?

What models did other manufacturers release in 2012?

What other digital pianos were released at a similar time?

Have your own question about the Yamaha ARIUS YDP-S51? Email us and we'll research it for you.

Resources

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Purchase Links

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More Info

Added: 2026-01-26 Updated: 2026-06-17 ID: 326

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