
The LK-S450: Easy, fun and always by your side
It’s never too late to start playing the keyboard. Explore new ways to learn music with the LK-S450. Fun is key to learning. The simple, user-friendly interface provides access to a variety of high-quality tones and multiple functions plus a hands-on learning guide so you can progress at your own pace.
What are you waiting for? The LK-S450 is ready when you are.

These Keys Unlock Doors
Learning to play your favorite tunes is now easier than ever. Relax and let the LK-S450 show you what note to play next. With the Key Lighting System illuminating the way, start playing your first song in as little as a few minutes. Complemented by the additional feature of the Step-Up Lesson Mode, you’re in control of how quickly you move through the levels. Enjoy learning at your own pace from the comfort of your home.

Learning That Feels Like Playing
The freedom to play and enjoy the authenticity of music. Explore the variety of built-in songs in the LK-S450 and play along to your favorites. Use the accompanying app to make learning even more fun. When music lessons are this exciting, practice becomes play.
Learning That Feels Like Playing
The freedom to play and enjoy the authenticity of music. Explore the variety of built-in songs in the LK-S450 and play along to your favorites. Use the accompanying app to make learning even more fun. When music lessons are this exciting, practice becomes play.


Sounds That Motivate You to Play
Compact but powerful, the LK-S450 is equipped with the AiX Sound Source — bespoke technology showcasing Casio's expertise in the development of quality electronic instruments. Find your style, with 600 varieties of tone, and refine your musical palate by experiencing, first-hand, the colourful nuances of quality sound. The expertly curated combination of advanced technology and elevated sound quality provides you with an uplifting musical experience every time you play.

Bring Your Music to Life
Turn on and tune in with the LK-S450. Horizontal Bass Reflex technology, combined with custom speakers and surround sound function, produces powerful and vivid sounds with an unexpected deep resonance from such a compact device. Ensure consistent audio quality, with the Volume-Sync EQ function automatically adjusting the bass and treble balance, achieving a perfectly clear and energetic sound at any volume. This streamlined keyboard packs a punch. Immerse yourself in a whole new world of performance and fill your environment with sound.
Don't just play the notes, make music an experience.

Lighting the Way to Your Music
Perfect for any level, the LK-S450 is your own personal teacher with its Key Lighting System guiding you through each piece by illuminating the keys in sequence. Play along to any of the 160 built-in songs with ease. Slow the tempo to help you practise, or learn melodies individually by selecting left-hand or right-hand parts only. The LK-S450 will act as your other hand. Everyone can experience success with the "Easy" mode — simply enjoy your achievements without the stress. Let the LK-S450 guide you at your own pace and learn in a variety of ways.
All learning should be this much fun!

Unlock Your Potential
Indulge in the fun of music with the LK-S450. Choose from 200 rhythmic patterns and play along to your favourite tune with the automatic accompaniment setting. If Karaoke is more your style, sing along to one of the built-in songs. Play music from your smartphone or tablet though the keyboard's speakers with the Wireless MIDI & Audio Adapter WU-BT10*. If individuality is everything, customise the LK-S450's audio with the CASIO MUSIC SPACE app. The LK-S450 gives you the freedom to change the key and tempo, or turn your favourite music into a backing track with the "cancel melody" or "cancel accompaniments" functions. Built-in scores provide even more options. MIDI capability makes all lessons fun. Entertain yourself with a tune by playing along with the piano roll.
More than a mere keyboard, the LK-S450 is your key to the world of music.
*Sold separately

Wherever You Are, Make Music
Stylish, casual, effortless. The LK-S450 is slim and light enough to fit anywhere, even over your shoulder. No desk or stand? Strap pins allow you to play anywhere. LK-S450's intuitive interface comes with a variety of built-in tones and functions so you're never short on material. Use My Setup to program in different functions, customising your settings and assigning them to one of the 5 buttons below the LCD screen, then access them with a single touch when you're ready to play.
Enrich your life with music.
Sound Samples
More Features
- Touch Response — add intensity and rich expression to each note you play
- Layer Function — expand your performance range by layering two tones
- Split Function – divide the keyboard to play different tones
- Metronome — keep time in practice and performance
- MIDI Recorder — record your performances and play them back
- Phones/output jack — tuck yourself away from the world around you as you play
Specifications
Keyboard
Number of Keys 61
Touch Response: 3 sensitivity levels, off
Key Lighting System Yes
Sound Source
AiX
Polyphony 48
Tones
600
Layer
3 (Upper1/2, Lower1)
Split
Yes
Sustain:
Yes
Effects
Reverb: 20
Chorus 10 (+Preset for each tone) Chorus:
DSP Yes (Preset for each tone) Delay:
Master EQ 10
Volume Sync EQ
Yes
10 Surround
Yes
Accompaniment
Number of Rhythms/Patterns 200
One Touch Presets 200
243 User Rhythms: 10
Chord Mode: CASIO Chord, Fingered 1, Fingered 2, Fingered On Bass, Fingered Assist, Full Range
Rhythm Elements: Intro, Normal, Normal-Fill, Variation, Variation-Fill, Ending, Synchro Start, Synchro Stop
Metoronome
Yes
Tap Tempo: Yes
Songs
160
Step Up Lesson
Lesson Part Select: Yes
User Songs: 200
Demo Songs 1
My Set Up Function
Yes
Chord Book
Yes
Transpose
-12 to +12 semitones
Tuning:
A4 = 415.5 Hz to 440.0 Hz to 465.9 Hz(Adjustable in 0.1 Hz increments)
Octave Shift
-3 to +3 octaves
Oriental Scale Setting
Equal temperament + 16 variations
MIDI Recorder
Yes
Songs: 5
Tracks: 6 (1 system track, 5 solo tracks)
Memory capacity: 40,000 notes (for each song)
General MIDI
Yes
Connection to Bluetooth®
Bluetooth® MIDI/Audio: Yes (with optional adaptor)
Connection to App
Supported App: CASIO MUSIC SPACE
Terminals
PHONES/OUTPUT: Stereo mini phone jack (mini TRS phone)
MIC IN: Standard phone jack (TS phone)
PEDAL TS phone jack
AUDIO IN Stereo mini phone jack (mini TRS phone)
USB to host micro B for expandability
USB TO DEVICE: Yes
LCD
Yes
Type Full-dot
Back Light: Yes (white)
Strap Pin:
Yes
Speaker
[13 cm x 6 cm] x 2
Horizontal Bass Reflex: Yes
Amplifiers
2.5W + 2.5W
Power Supply
DC 9.5V
Power Supply
AC Adapter: AD-E95100L (DC 9.5V) Batteries:
Battery: AA-size alkaline batteries x 6 or AA-size rechargeable nickel metal hydride batteries* x 6 Battery Life: Approximately 3 hours continuous operation
Approximately 4 hours continuous operation Actual continuous operation time may be shorter due to battery type, performance type, and usage environment.
*Measured values while using eneloop batteries. eneloop is a trademark of Panasonic Corporation.
Power Consumption
7.5 W
Dimensions
930x258x84(mm)
Weight
4.6kg
Included Accessories
Music Stand, Strap Lock
Options (sold separately)
Pedals (SP-3, SP-20), Headphones (CP-16), AC Adaptor (AD-E95100L), Wireless MIDI & Audio Adaptor (WU-BT10), Special Stand (CS-2X), Benches (CB-7, CB-30BK, CB-30BN), Carrying Case (SC-650B)
EAN code
4971850315124
Bluetooth® word mark and logo are registered trademarks of Bluetooth SIG, Inc. and any use of these marks by CASIO COMPUTER CO., LTD. is under licence.
Built-in Songs
PIANO/CLASSICS
FÜR ELISE
LA PRIÈRE D'UNE VIERGE
VALSE op.64 no.1 "PETIT CHIEN"
TURKISH MARCH (MOZART)
TRÄUMEREI
ETUDE op.10 no.3 "CHANSON DE L'ADIEU"
LIEBESTRÄUME no.3
NOCTURNE op.9 no.2 (CHOPIN)
CANON (PACHELBEL)
JE TE VEUX
MARY HAD A LITTLE LAMB
LE CYGNE FROM "LE CARNAVAL DES ANIMAUX"
SONATA op.13 "PATHÉTIQUE" 2nd Mov.
HEIDENRÖSLEIN
AIR FROM "SUITE no.3"
SPRING FROM "THE FOUR SEASONS"
HABANERA FROM "CARMEN"
BRINDISI FROM "LA TRAVIATA"
HUNGARIAN DANCES no.5
MINUET IN G MAJOR
MUSETTE IN D MAJOR
ECOSSAISE IN G MAJOR
GAVOTTE (GOSSEC)
ARABESQUE (BURGMÜLLER)
CHOPSTICKS
DECK THE HALL
ODE TO JOY
AVE MARIA (GOUNOD)
SONATINA op.36 no.1 1st Mov.
PRELUDE op.28 no.7 (CHOPIN)
RÊVERIE
GYMNOPÉDIES no.1
GOING HOME FROM "FROM THE NEW WORLD"
BRIDAL MARCH FROM "LOHENGRIN"
SONATA op.27 no.2 "MOONLIGHT" 1st Mov.
THE ENTERTAINER
WEDDING MARCH FROM "MIDSUMMER NIGHT'S DREAM"
AMERICAN PATROL
FRÖHLICHER LANDMANN
LA VIOLETTE
SPINNERLIED
LA CHEVALERESQUE
SONATINE op.20 no.1 1st Mov.
SONATA K.545 1st Mov.
GAVOTTE FROM "FRANZÖSISCHE SUITE V"
JESUS BLEIBET MEINE FREUDE
SERENADE FROM "EINE KLEINE NACHTMUSIK"
MARCH FROM "THE NUTCRACKER"
CHANSON DU TOREADOR FROM "CARMEN"
LARGO (HÄNDEL)
INNOCENCE
PROMENADE FROM "TABLEAUX D'UNE EXPOSITION"
INVENTIONEN no.1
PRAELUDIUM no.1 (J.S.BACH)
DOLLY'S DREAMING AND AWAKENING
LA FILLE AUX CHEVEUX DE LIN
HUMORESKE (DVOŘÁK)
ARABESQUE no.1 (DEBUSSY)
MAPLE LEAF RAG
MELODY IN F
EVENT
SILENT NIGHT
JINGLE BELLS
WE WISH YOU A MERRY CHRISTMAS
JOY TO THE WORLD
O CHRISTMAS TREE
WORLD
WHEN THE SAINTS GO MARCHING IN
GREENSLEEVES
ANNIE LAURIE
HOME ON THE RANGE
AMAZING GRACE
LONG LONG AGO
TWINKLE TWINKLE LITTLE STAR
GRANDFATHER'S CLOCK
SANTA LUCIA
TROIKA
LIGHTLY ROW
ON TOP OF OLD SMOKEY
AULD LANG SYNE
COME BIRDS
DID YOU EVER SEE A LASSIE?
MICHAEL ROW THE BOAT ASHORE
DANNY BOY
MY BONNIE
HOME SWEET HOME
AURA LEE
ALOHA OE
JOSHUA FOUGHT THE BATTLE OF JERICHO
THE MUFFIN MAN
LONDON BRIDGE
UNDER THE SPREADING CHESTNUT TREE
SIPPIN' CIDER THROUGH A STRAW
BEAUTIFUL DREAMER
IF YOU'RE HAPPY AND YOU KNOW IT, CLAP YOUR HANDS
MY DARLING CLEMENTINE
LITTLE BROWN JUG
HOUSE OF THE RISING SUN
SHE WORE A YELLOW RIBBON
YANKEE DOODLE
MY OLD KENTUCKY HOME
SZLA DZIEWECZKA
WALTZING MATILDA
ON THE BRIDGE OF AVIGNON
I'VE BEEN WORKING ON THE RAILROAD
OH! SUSANNA
CAMPTOWN RACES
JEANNIE WITH THE LIGHT BROWN HAIR
TURKEY IN THE STRAW
JAMAICA FAREWELL
FURUSATO
SAKURA SAKURA
EXERCISE
(EXERCISE1-50)
* A collection of songs for finger training. They may also provide some mental stimulation.
The level of mental stimulation depends on the individual.
This product is not a medical device.User Songs:
- User Song 1-10
USER Recording
- Tone Recording
- Rhythm Recording
- Part off Recording
Multi-track Recorder:
USB SONG
USB flash drive port
Input/Output Terminals

1 USB TO HOST terminal
2 USB TO DEVICE terminal
3 DC 9.5 V terminal
4 PHONES/OUTPUT jack
5 AUDIO IN jack
6 MIC VOLUME knob
7 MIC IN jack
8 PEDAL jack
*Click here for a list of the supported operating systems for the USB (TO HOST) feature.