Casio CTK2400K2 Keyboard


No matter where you are, the compact CTK-2400 turns each piece of music into a true sound experience. Let yourself be carried away with the wide range of 400 AHL tones and become acquainted with the improved sampling function: Using the built-in microphone, it’s easy to record samples and integrate them into the rhythm. Additional features, such as the 150 rhythms or the step-up learning system, ensure a lively introduction to the world of music and make each performance an exciting acoustic experience.




Casio continues the tradition or providing &ldquoclass compliant” USB connectivity on Portable digital pianos. This allows Casio Portable digital pianos to be used with Mac or Windows computers without the need for downloading drivers. Class Compliant USB MIDI also allows Casio digital pianos to be used as a controller for the Apple iPad by using Apple’s Camera Connection Kit.


Casio’s CTK-2400 offers 48 notes of polyphony so you don’t have to worry about dropping notes. Using the sustain pedal for multiple notes, playing big chords, adding rhythms and layering sounds can deplete the polyphony memory quickly resulting in dropped notes. When searching for a keyboard, take the amount of polyphony into consideration.

Built in Songs

The CTK-2400 has an impressive library of 110 built-in songs. Whether you are using the songs to learn with the Step Up Lesson system, or playing along with a song for fun, you will find greater choices to meet your needs. Compare the number of songs to other manufacturers and you will see Casio has the better value.

Power… Included

Not only is the CTK-2400 a powerful keyboard but unlike other companies, Casio includes the AC adapter with all full sized keyboards so you can start making music right away.

Preset Rhythms

Casio’s CTK-2400 includes 150 preset rhythms built into the keyboard. Additional rhythms expand your music composition, creativity and fun.


Keyboard61 standard-size keys
MidiGM level 1 Standard
Touch ResponseNo
Key Light SystemNo
Maximum Polyphony48 notes
TonesBuilt-in Tones: 400
Sampling: Tones:1
Sampling time: 1 second (fixed)
Effects: 10 types (for Full Sampling samples)
MetronomeBeats per Measure: 0,2 to 6
Tempo Range: 30 to 255
Song BankTubes 110
Sampling FunctionMaxium Sampling Time 2 Sec. (Long Sampling Mode) 1 (Long Sampling) or 5 (Short Sampling) tones/ Data Back up
Sampling sound: Built-in Mic/ Mic In
Variety: 26 (1 Long Sampling, 5 Short Sampling, 10 Effects for Long Sampling and 10 Effects for Short Sampling)
Performance Evalution
Music Challenge20 notes
Auto AccompanimentRhythm Patterns: 150
Other FunctionsTranspose: +/-1 octaves (12 semitones)
Tuning: A4 = approx. 440 Hz +/- 100 cents
MIDI16 multi-tune received, GM Level 1 standard
Musical Information FunctionTone, Rhythm, Song Bank, numbers and names; staff notation, fingering, pedal operation, tempo, measure and beat number, chord name, etc.
USB portYes (To Host)
Sustain jackStandard jack (sustain, sostenuto, soft, rhythm start/stop)
Phones/Output jackStereo standard jack
Output Impedance40 kOhm, Input Sensitivity: 200 mV
Mic In jackStandard jack
Input Impedance3 kOhm, Input Sensitivity: 10 mV
Power Jack9V DC
Power Supply9.5V DC (AD-E95100L)/ 6 AA-Size Batteries
Batteries6 AA-size zinc-carbon batteries or alkaline batteries
Battery LifeApproximately 3 hours continuous operation on alkaline batteries
AC AdaptorAD-E95100L
Auto Power OffApproximately 6 minutes after last key operation (Operates during battery use only)
Speakers10cm X 2
Power Consumption9V – 7.7W
Dimensions94.6 x 30.7 x 9.2 cm (37 1/4 x 12 1/16 x 3 5/8 inch)
Weight7.94 lbs (without batteries)