CASIO CT-S400 Synthesizer
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Description
Description
CASIO CT-S400 Casiotone Keyboard
The Casio CT-S400 is a powerful and versatile portable synthesizer, designed for musicians who want more features and sounds without sacrificing compactness. This instrument is equipped with an advanced AiX Sound Source, which generates 600 high-quality tones – from realistic pianos and strings to modern synthesizers. Unlike simpler models, the CT-S400 features a bright LCD screen and a convenient control dial, allowing for quick navigation between sounds and settings.
One of the strongest aspects of this model is the 200 rhythm auto-accompaniment function, which allows you to play with a virtual band in various musical styles. The horizontal Bass Reflex speaker system ensures surprisingly powerful and clear sound, while the "Surround" function creates a spatial sound experience. In addition, the instrument has a Pitch Bend wheel, which is essential for expressive playing (e.g., guitar or synthesizer solos).
Key Features
- AiX Sound Technology: 600-tone library with expressive, dynamic sounds.
- Intuitive Control: Large LCD screen and rotary dial allow easy finding of desired sound or rhythm.
- Bass Reflex System: Compact speakers with powerful bass and surround sound effect.
- Auto-accompaniment: 200 integrated rhythms with variations, intros, and endings.
- Pitch Bend Wheel: Allows real-time pitch modification, adding more life to your playing.
- Wireless Connectivity: Option to connect a WU-BT10 adapter (sold separately) for Bluetooth Audio and MIDI functions.
Technical Specifications
- Manufacturer: Casio
- Model: CT-S400
- Keyboard: 61 keys (piano-style)
- Touch Response: 3 levels, off
- Sound Source: AiX
- Polyphony: 48 notes
- Number of Tones: 600
- Number of Rhythms: 200 (with auto-accompaniment)
- Songs: 160 integrated + 10 user songs
- Recording: MIDI recorder (5 songs, 6 tracks, ~40,000 notes)
- Effects: Reverb (20), Chorus (10), DSP, Master EQ, Surround
- Speakers: [13 cm x 6 cm] x 2 (Bass Reflex)
- Amplifiers: 2.5W + 2.5W
- Display: Full-dot LCD with backlight
- Connections:
- 1 x PHONES / OUTPUT (3.5 mm stereo mini jack, female)
- 1 x AUDIO IN (3.5 mm stereo mini jack, female)
- 1 x USB to HOST (Micro-B)
- 1 x USB to DEVICE (for WU-BT10 adapter)
- 1 x PEDAL (Standard 6.3 mm jack, female)
- Power Supply: AD-E95100L adapter or 6 x AA batteries
- Power Consumption: 7.5 W
- Dimensions: 930 x 258 x 84 mm
- Weight: 4.5 kg (without batteries)
What's in the box?
- 1 x Casio CT-S400 keyboard instrument
- 1 x Music Stand
- 1 x Strap Lock
- 1 x AD-E95100L power adapter (usually included, but always worth checking)
Who is it for?
- Students and beginners who want an instrument they can grow with (due to recording and accompaniment features).
- Home musicians looking for a versatile "all-in-one" solution with many sounds.
- Traveling performers who need a lightweight yet functional keyboard instrument.

