
Casio CTX9000IN Keyboard features a 15W + 15W high-output amp and bass reflex speakers, demonstrating the full potential of the AiX Sound Source.
The CT-X Series comes with the AiX Sound Source, which can produce a wide range of sound qualities from powerful bass tones to clear high tones. The exceptional computing power of the high-performance LSI reproduces the natural charm of acoustic instrument sounds, such as the agreeable change in tone when a piano key is struck, the sensation of a drum performance, or soaring strings. Dynamic tone changes also give its electronic sound exceptional expressiveness.

The high-speed digital signal processor is also applied for each sound type, such as melody, backing drum, and bass, or organ. Even the standard ensemble for a keyboard delivers a distinct sound for each instrument for an expressive performance.
Specifications:
- Keyboard: 61 standard size keys
- Touch Response: Sensitivity 3 types, Off
- Maximum Polyphony: 64 notes (32 for certain tones)
Tones:
- Preset Tones: 800
- User Tones: 100
- Other: Layer, split (configurable split point, lower point, chord point settings)
System Effects:
- Reverb: 32 types, Off
- Chorus: 16 types, Tones
- Delay: 20 types, Tones
- DSP: 100 types (Can be applied to user tones using DSP editing.), DSP tones
Master Effects:
- Equalizer (10 presets)
- 4-band User Equalizer
- External Input Effects: Center cancel (vocal cut) for input from the Audio In jack
Metronome:
- Beat: 0 (accented tone off), 1 to 16
- Tempo: Tempo value: 20 to 255
- Demo Songs : 3
Song Bank:
- Built-in Songs: 30
- User-recorded Songs: 10
- USB Memory Songs: Playback of standard MIDI files (SMF format 0/1), and CASIO MIDI files (CMF format) on a USB flash drive is supported.
- USB Audio Playback: Playback of audio files on a USB flash drive is supported.
- Supported File Formats: WAV format, 44.1 kHz 16 bit
- Other Functions: Center Cancel (Vocal Cut)
- Auto Accompaniment: Built-in Rhythms: 250
- User Rhythms: 100
- One-Touch Presets 235
- Music Presets: 310 (With chord progressions)
Phrase Pads:
- Number of Pads: 4
- User Phrases: 100 (4 phrases x 25 pads)
- Editing Mode: Copy, delete, phrase editing
Mixer Function:
- Affected Parts: Sound source parts, the microphone input part
- Parameters: Part on/off, volume, pan, reverb send, chorus send, delay send
- Registration : Maximum 128 setups (8 setups x 16 banks), registration sequence
- Tone Editing: Preset tone editing, DSP editing
- Memory for storage of edited tones (up to 100)
- Rhythm Editing: New rhythm creation, rhythm editing
- Memory for storage of created/edited rhythms (up to 100)
- MIDI Recorder: Real-time recording, playback
- Keyboard Performance Recording: 10 songs, 17 tracks (1 system track, 16 solo tracks)
- Memory Capacity: Approximately 40,000 notes (per song)
- Editing Mode: Song editing, track editing, event editing, step input
Other Functions:
- Overdubbing, punch-in recording
- Pedals : Sustain, sostenuto, soft, rhythm/song, expression
- Controllers : Pitch bend wheel, SUSTAIN button, PORTAMENTO button, MODULATION/ ASSIGNABLE button
- Other Functions : Transpose: ±1 octaves (-12 to 0 to +12 semitones)
- Octave Shift: Upper 1/Upper 2/Lower 1/Lower 2, ±3 octaves
- Tuning: A4 = 415.5 to 465.9 Hz (Initial Default: 440.0 Hz)
- Part coarse tune: For each keyboard part, ±2 octaves (-24 to 0 to +24 semitones)
- Part fine tune: For each keyboard part, ±99 cents
- Scales: 17 preset scales, scale fine tuning
- Auto Harmonize: 12 types
- Arpeggiator: 150 types
- MIDI : 16ch multi-timbre received, GM Level 1 standard
- Inputs/Outputs : USB Flash Drive Port: Type A
- USB Port: Type B
- Pedal 1 Jack: Standard jack
- Pedal 2, Expression Jack: Standard jack
- Headphones Jack: Stereo standard jack
- Audio Input Jack: Stereo mini jack/Input impedance 9 kΩ, Input sensitivity 200 mV
- Line Out Jack: Standard jacks x 2/Output impedance 2.3 kΩ, Output voltage 1.9 V (RMS) MAX
- Microphone Input Jack: Standard jack (Connect a dynamic microphone.)/ Input impedance 3 kΩ, Input sensitivity 10 mV
- Power Jack: DC 24V
- Power Supply: AC adaptor only
- AC Adaptor: AD-E24250LW
- Auto Power Off: Approximately 30 minutes after last operation; Can be disabled.
- Speakers : 10cm x 2 (Output: 15W + 15W)
- Power Consumption : 15 W
- Dimensions : W 94.8 x D 38.4 x H 11.6 cm
- Weight : Approximately 7.0 kg
- Included Accessories : Music stand, AC adaptor