Yamaha NP-31 Digital Piano Information, Specifications and Resources

Author: Andy Merrett / Data Driven

Music accessories on Amazon

Audio cables Headphones Akai Sampler Focusrite Scarlett Mini microphone for mobile Metronomes
Yamaha NP-31

Overview

The Yamaha NP-31 is a digital piano released in 2011. It is aimed at those primarily wanting a quality piano sound and keyboard feel.

The NP-31 has 76 semi-weighted full sized keys with touch sensitivity but no aftertouch. It has 32 notes of polyphony, which is considered low for a modern digital piano. It has 10 on board sounds including pianos and real world sounds, and a sustain/damper pedal.

It uses Yamaha's AWM sound generation. Advanced Wave Memory is a classic high-quality sample playback and layering engine.

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.

View Prices on AmazonView Prices on ReverbView Prices on ebayView Prices on Music & Arts

Disclosure

Check out the latest Yamaha P Series digital pianos on Amazon

As the Yamaha NP-31 is 15 years old, you may find used models and spare parts on ebay.

Specifications

Form

Number of Keys: 76
Key Weight: Semi-weighted
Key Size: Full
Touch Sensitive:
Aftertouch:

Sound

Number of Voices: 10
Polyphony: 32
Sound Generation: AWM
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: 2011
RRP: $399

Description

The new Piaggero NP series gives you classic Yamaha piano tone and 76 full-sized keys in an ultra-portable package weighing in at just 12 pounds (NP-31). Operating on just 6 AA batteries, you don't even need a power outlet to play your piano anywhere your music takes you. Yamaha has added a new 61-key model (NP11) and an easy to use panel design with dedicated voice-select buttons. Built-in metronome with adjustable tempo and time signature appeals to the pianist who knows that practice makes perfect. The NP31's Graded Soft Touch Action emulates the graded resistance of an acoustic piano without the added weight of hammers.

Slim, Light & Compact Design

Walk in, carrying the NP31 with one hand, and play - it's that easy anywhere thanks to the new slim, light and compact design.

Graded Soft Touch Keyboard

76-key Piano-style keyboard.The lower keys are heavy in touch and the higher keys are light, just as on an actual piano, whilst retaining the soft touch of a digital keyboard.

Advanced Wave Memory (AWM) Stereo Sampling

AWM, Advanced Wave Memory Stereo sampling is a sampling system, creating superb wave data that mirrors the sound and expression of the original instrument by using advanced digital technologies. It creates a unique, rich sound by using multiple waveforms.

Built-in Stereo Speaker System

This instrument uses highly efficient amplifiers that pack more sound into a lighter digital piano. With 6 watts per channel, these keyboards are ready to go whenever you are.

Piano Preset songs

It provides performance data for piano songs as well as voice demo songs, for your listening pleasure.

Battery Power or AC adaptor

The NP31 can be used with an AC adaptor, but the 6-hour(with alkaline battery , *Reference data from NP-30 ) battery is the key to Piaggero portability. (Japan Industry Regulation) (Whether and what type of adaptors come with the product vary according to the region in which the product was sold. Please check with your local dealer)

Auto Power Off mode

This is a new, eco-friendly mode. The NP31 comes with a function that turns off the power automatically if the keyboard has not been used for a set amount of time(30 minutes) in order to avoid using power unnecessarily. This supports long battery life.

New ECO energy saving feature

Energy Conservation Optimized means saving energy by powering down after 30 minutes of inactivity

Easy access panel

NP-31 features dedicated buttons for each voice

All new model: NP-11

61-note, ultra portable version of the NP-31

10 voices

Change the sound of the instrument by playing electric piano, organ, harpsichord, strings or vibraphone

32-note polyphony

With Yamaha's Dynamic Voice Allocation, 32-notes is all a pianist needs to play and sustain notes naturally.

Lightweight

Extremely lightweight at just under 12-1/2 lbs (NP-31) and 11 lbs. (NP-11)

Operates on 6 AA batteries

No electrical outlet required. Perform Christmas piano music on the north pole without a generator.

FAQ

What year was the Yamaha NP-31 launched?

This instrument was launched in 2011

What other models did Yamaha release in 2011?

What models did other manufacturers release in 2011?

What other digital pianos were released at a similar time?

Have your own question about the Yamaha NP-31? Email us and we'll research it for you.

Resources

Reviews

No reviews to show.

Purchase Links

Find Yamaha NP-31 Deals on Amazon ebay Music and Arts Reverb

More Info

Added: 2026-01-26 Updated: 2026-06-17 ID: 224

Instruments from 2010 Instruments from 2011 Instruments from 2012 Instruments from the 2010s
76 key instruments full sized key instruments Yamaha instruments
Search Amazon for Yamaha NP-31 Online manuals


Shop Amazon for Yamaha Shop ReverbShop Music & Arts

Want to learn more about synths?

More...

Music Software Bundles from Pluginboutique.com

Instrument Lists

Time

By Year


By Decade

By Age


Manufacturer


Product Line


Manufacturer & Type

Type


Features

Number of Keys

Key Size


Price

Miscellaneous