Casio CTK-4000 Portable Keyboard

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.

Featuring a 61 note keyboard with Piano Style, Touch  Sensitive keys, 570 sounds, 180 rhythms, Reverb and Chorus Digital Effects, built-in USB and an audio input for an MP3 player, the CTK-4000 is the perfect affordable instrument for a beginner player or advanced player.

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)