At A Glance

The Casio CTK-4000 is an affordable instrument with a 61 Key Piano Style Touch Sensitive Keyboard, 570 total onboard Tones, 180 Rhythms and Reverb plus Chorus Digital Effects. Packed with great features such as Casio's famous Step-up Lesson System, audio inputs for a MP3 player and a USB port for MIDI. All this makes CTK-4000 more realistic and expressive than ever before at this price range.

Technical Specs

CTK-4000 Technical Specifications
Keyboard   61 standard-size keys
Touch Response 2 sensitivity levels, Off
Maximum Polyphony 48 notes (24 for cetain tones)
Tones Built-in Tones 570
Sampling tones Up to 8 (Melody Sampling: 5, Drum Sampling: 3)
Up to 10 seconds
Functions Layer, Split
Digital Effects 10 Reverbs, 5 Choruses
Lesson   Step-Up Lesson: 4 (Listen, Watch, Remember, Auto)
Lesson Part L, R, LR
Functions Repeat, Voice Fingering Guide, Note Guide, Performance Evaluation
Song Bank Built-in Songs 152
User Songs Up to 10
Music Challenge 20 notes
Auto Accompaniment Built-in Rhythms 180
User Rhythms Up to 10 (Accompaniment Edit)
Chords Fingered 1/2/3, CASIO Chord, Full Range Chord
Rhythm Controller Accomp ON/OFF, Start/Stop, Synchro/Ending, Variation/Fill-in, Normal/Fill-in, Intro
Registration 32 (4 setups x 8 banks)
Recorder   Real-Time Recording, Playback
Keyboard Play 5 Songs, 6 Tracks
Playing Along with a built-in Songs 1 song (L, R, LR)
Memory Capacity Approximately 12,000 notes (total for 6 songs)
Metronome Beats per Measure 0, 2 to 6
Tempo Range 30 to 255
Other Functions Transpose +/-1 Octaves (12 semitones)
Octave Shift Upper/ Lower +/-2 Octoves
Tuning A4 = approx. 440 Hz +/-100 cents
Scale Tuning Preset Scales
Music Preset 305
One Touch Preset 180
Auto Harmonize 12 types
Arpeggiator 90 types
MIDI   16 multi-timbre received, GM Level 1 standard
SD Memory Cards Supported SD Memory Cards 2 GB or less
Functions SMF playback, file storage, file recall, file delete, card format
Musical Information Function Tone, Rhythm, Song Bank, numbers and names; staff notation, fingering, pedal operation
tempo, measure and beat number, chord name, etc.
Terminals USB Port Type B
Sustain/Assignable Jack Standard jack (sustain, sostenuto, soft, rhythm start/stop)
Phones/Output jack Stereo standard jack
Output Impedance: 200Ω, Output Voltage: 4.5V (RMS) Max
Audio In jack Stereo mini jack
Input Impedance: 9KΩ, Input Sensitivity: 200mV
Power Jack   9V DC
Power Supply   2-way
Batteries 6 D-size zinc-carbon batteries or alkaline batteries
Battery Life Approximately 5 hours continuous operation on zinc-carbon batteries
AC Adaptor AD-5 (Optional)
Auto Power Off Approximately 6 minutes after last key operation (Operates during battery use only)
Speaker Output   12cm x 2
Output 2.5W + 2.5W
Power Consumption 9V - 7.7W
Dimensions 37 7/16 x 14 13/16 x 5 1/8 inch
Weight Approximately 10.1 lbs (without batteries)

*Technical Specifications are Subject to Change

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