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Casio CTK-2100 61-Key Portable Piano

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The Casio CTK-2100 offers pure playing pleasure with 61 piano-style touch keys. Whether you want to dive into a colorful world of 150 rhythms, use the sampling function together with the voice pads, o... Click To Read More About This Product

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The Casio CTK-2100 offers pure playing pleasure with 61 piano-style touch keys. Whether you want to dive into a colorful world of 150 rhythms, use the sampling function together with the voice pads, or connect a CD or MP3 player through the audio input so that you can play along to your favorite song on the keyboard, this Casio keyboard provides a huge range of features and functions. Plus, the step-up learning system makes it easy to hear the progress you've made with your playing skills.

400 AHL tones
The 400 innovative AHL tones produce a wonderful, natural sound that is perfectly suited to a diverse range of genres.

Step-up learning system
The 61 piano keys on the Casio CTK-2100 guide you through a whole host of songs. A practice piece is divided into individual sections and then learned step by step, just like in a traditional music lesson. The 3-level, interactive learning system offers a simple way to achieve your learning goals.

48-note polyphony
Vivid sound diversity: The CTK-2100 can play up to 48 notes simultaneously.

61 keys
The 61 piano-like keys give the Casio keyboard a sophisticated, elegant appearance and provide the ideal scope for musical inspiration.

150 rhythms
150 rhythms provide you with a colorful overview of the world of music.

110 songs
Listen, sing along, and play along: Your CTK-2100 electronic piano stores 110 top-quality songs.

10 digital effects
Whether you're giving a live performance to an audience or you're alone in your living room, 10 reverb effects enhance the sound diversity of your keyboard.

LC display
Retain an overview: The large LC display shows you key information at a glance.

The tried-and-tested interface quickly and simply connects your keyboard with the computer. Plug and play with Windows XP/Vista and Mac from OSX 10.3 ensures optimum compatibility.

Sampling function
Recording and playback: Recordings can be played back through the keyboard and pads using the sampling function (audio input). 10 additional sound effects are provided to boost the fun factor.

Voice pad function
Get creative: The electronic piano's voice pad function provides a simple way of playing back voice samples, as well as other effects and sounds using the Casio keyboard's pads. Moreover, the audio-in function lets you record your own samples of up to ten seconds, which can then also be played through the voice pad function.

Audio input (audio-in)
It's easy to connect a CD or MP3 player to the audio input on your CTK-2100 and play along with your favorite songs on the keyboard.

Song bank controller
The 110 practice pieces in the Song Bank can be controlled through the song bank controller in a similar way to a CD player, allowing players to practice the piece effectively.

Loudspeaker system
A system featuring two loudspeakers and a power of 2 x 2 Watts produces an impressive and balanced sound.


  • 61 piano-style touch keys
  • Voice pad function
  • 48-note polyphony, AHL sound source
  • 400 tones, 150 rhythms
  • Step up lesson system
  • Sampling function
  • Audio-in terminal for MP3 player
  • Keyboard:
  • 61 standard-size keys
  • Maximum polyphony: 48 notes (24 for certain tones)
  • Tones:
  • Built-in tones: 400
  • Sampling tones: 1
  • Sampling time: 1 second (fixed)
  • Effects: 10 types
  • Reverb: 1 to 10, off
  • Metronome:
  • Beats per measure: 0,2 to 6
  • Tempo range: 30 to 255
  • Song bank: Tunes 110
  • Step up lesson:
  • Lessons: 4 (listen, watch, remember, auto)
  • Lesson part: L, R, LR
  • Functions: repeat, voice fingering guide, note guide, performance evaluation
  • Music challenge: 20 notes
  • Auto accompaniment: rhythm patterns 150
  • Other Functions:
  • Transpose: ±1 octaves (12 semitones)
  • Tuning: A4 = ca. 440 Hz ±100 cents
  • MIDI: 16 multi tone received, GM level 1 standard
  • Musical information function: tone, rhythm, song bank, numbers and names, staff notation, fingering, pedal operation, tempo, measure and beat number, chord name, etc.
  • Inputs/Outputs:
  • USB port: Type B
  • Sustain jack: Standard jack (sustain, sostenuto, soft, rhythm start/stop)
  • Phones/Output jack: stereo standard jack
  • Output impedance: 200 Ohm
  • Output voltage: 4,8 V (RMS) MAX
  • Audio In jack: stereo mini jack
  • Input impedance: 40 kOhm
  • Input sensitivity: 200 mV
  • Power jack: 9VDC
  • Power supply:
  • 2-way
  • Batteries: 6 AA-size zinc-carbon batteries or alkaline batteries
  • Battery life: approximately 4 hours continuous operation on alkaline batteries
  • AC Adapter (not included): AD-5
  • Auto power off: approximately 6 minutes after last key operation (operates during battery use only)
  • Speakers:
  • 10 cm x 2
  • Output: 2 W + 2 W
  • Power consumption: 9 V - 7.7 W
  • Dimensions: 4.4" H x 37.4" W x 13.9" D
  • Weight
  • (approximately): 8.4 lb. (without batteries)
Pro Coverage
One year parts and labor warranty on all keyboards (includes power supply).

  • Customer Reviews

Review Snapshot

by PowerReviews
CasioCTK-2100 61-Key Portable Piano

(based on 4 reviews)

Ratings Distribution

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  • 1 Stars



Reviewed by 4 customers

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(77 of 80 customers found this review helpful)


Fantastic Deal!

By Don M.

from Toronto, Ontario, Canada

Comments about Casio CTK-2100 61-Key Portable Piano:

I picked this keyboard up the other day. i have had many midi synthesizers of various brands and I must say the sound quality instrument library on this unit are phenomenal for the price. The piano teaching functions and ease of ad-lib musical performance make this a greatitem for any budding musician. Connection to a Windows PC was effortless with a standard USB cable and I was playing my favorite midi songs off the computer within minutes. Even with the small speakers, this unit produces very pleasing tones with a huge bank of sampled musical instruments to choose from which sound almost indistinguishable from the real things. I was toally satisfied with my purchase and may pick up a few more for family and friends at such an affordable price!

(40 of 41 customers found this review helpful)


best keyboard i've ever played

By andrew_wukusick

from waynesfield, ohio

Comments about Casio CTK-2100 61-Key Portable Piano:

I've been looking into getting a keyboard to play on the side when I'm not playing my guitar, so I bought the cheapest decent one I could find. I didn't expect much, but I got it. It was better than I could have ever thought it would be. It has 400+ tones that sound amazing, plus the reverb makes it sound even better. Add all that plus the fact that it uses a usb midi & the same power adaptor as most guitar pedals, & the extreamly affordable price, it's practicly a steal. If you're looking for a great keyboard for an even better price, get it.

(35 of 38 customers found this review helpful)


This is the best!!!

By Nakia

from Cleveland, Oh

Comments about Casio CTK-2100 61-Key Portable Piano:

This keyboard was purchased for my daughter and she loves it! She's taking voice lessons and her teacher recommended a casio keyboard. She's learning to read notes and also learning to play by ear. She's really enjoying her new keyboard and really beginning to make beautiful music


I love my Casio CTK-2100 61-Key Portable Piano

By Diana Sclafani

from Mount Dora, FL

Comments about Casio CTK-2100 61-Key Portable Piano:

When choosing a keyboard to replace the one I left 1500 miles away at my Mom's in Long Island, NY, I was determined to find one with more options and also within my budget. Well the Casio CTK-2100 61-Key Portable Piano, offers just that. I did have the inspiration in having the option to record tracks, but I decided that can always come later, after I practice a bit. Thank you Guitar Center :) ~Sincerely, Diana S.

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