| Number of Keys | 61 |
| Touch Response | 3 sensitivity levels, Off |
| Sound Source | AiX |
| Maximum Polyphony | 64 |
| Number of Tones | 61 Advanced Tones, 10 CASIO Classic Tones, 12 Additional Tones |
| Demonstration Songs | 1 + 10 (Piano Demo) |
| Recorder | MIDI Recorder – 1 Song, 40,000 Notes |
| Speaker | [13cm x 6cm] ×2 |
| Amplifiers | 2.5W + 2.5W |
| Power Supply |
AC Adaptor: AD-E95100L (DC 9.5V)
Batteries: 6 × AA Alkaline or 6 × AA Rechargeable NiMH
Battery Life: Approx. 3 Hours (may vary by usage and battery type)
|
| Power Consumption | 7.5W |
| Dimensions | 930 × 258 × 83 mm (without music stand) |
| Weight | 4.5 kg (without batteries) |
| Color | Red |
| Included Accessories | Music Stand, Strap Lock |
| Effects |
Reverb: 24 Types (+ Preset for each tone)
Chorus: Yes (Preset)
Delay: Yes (Preset)
DSP: Yes (Preset)
Master EQ: 10 Presets
Surround: Yes
|
| Layer/Split | Layer: 2 (Upper1/2) |
| Octave Shift | -3 ~ 0 ~ +3 Octaves |
| Transpose | -12 ~ 0 ~ +12 Semitones |
| Tuning Control | A4 = 415.5 Hz ~ 440.0 Hz ~ 465.9 Hz |
| Scales | Equal Temperament + 16 Variations |
| Metronome | 0–16 Beats; Tempo Range: 20–255 |
| My Set Up Function | Yes |
| Headphone Mode | Yes |
| Volume Sync EQ | Yes |
| Other Features | Sustain, Tone Memory Function, Auto Power Off |
| USB Port | Micro B, Type A (For Optional Wireless MIDI & Audio Adaptor WU-BT10) |
| Audio In | Stereo Mini Jack |
| Pedal | Standard Jack |
| Phones/Output | Stereo Mini Jack |
| App Connectivity | Yes (CASIO MUSIC SPACE) |
| Wireless Functionality | Bluetooth MIDI & Audio (Optional WU-BT10 Adaptor Required) |
| MIDI | Yes (Via USB Port) – 16-Channel Multi-Timbre Receive |
CASIO CT-S1RD Electronic Musical Instrument (SLIM & SMART) KS53 – Premium Sound in a Sleek Red Design
If you're searching for a stylish yet powerful 61-key keyboard that delivers authentic sound and modern connectivity, the CASIO CT-S1RD Electronic Musical Instrument (SLIM & SMART) KS53 is built for you. Whether you're a beginner learning your first chords or an experienced player looking for a compact performance keyboard, this slim and lightweight instrument combines expressive sound with smart features. Powered by CASIO’s advanced AiX Sound Source and 64-note polyphony, it produces rich, dynamic tones that respond naturally to your playing style.
With 3 touch response sensitivity levels, 61 advanced and classic tones, built-in DSP effects, and Bluetooth MIDI & Audio support (via optional WU-BT10 adaptor), the CT-S1RD transforms your practice sessions into professional-level experiences. Its 4.5kg lightweight body, included music stand and strap lock, and battery operation make it ideal for home practice, studio recording, or live performance. At SpeedTech, we bring you genuine products that help you unlock your creativity with confidence and performance reliability.
Key Benefits of CASIO CT-S1RD (SLIM & SMART)
- Expressive Sound with AiX Technology: The AiX Sound Source delivers realistic acoustic piano tones and dynamic sound variation. With 64-note polyphony, your notes won’t cut off during complex passages, allowing smooth chord progressions and layered performance.
- Professional-Level Sound Customization: Fine-tune your performance using Reverb (24 types), Chorus, Delay, DSP, Master EQ (10 presets), and Surround effects. Layer two tones (Upper1/2), adjust octave shift, transpose up to ±12 semitones, and even control tuning (A4 range 415.5Hz–465.9Hz) for full creative freedom.
- Smart Learning & App Connectivity: Connect with the CASIO MUSIC SPACE app for structured learning and interactive control. Built-in metronome (20–255 BPM), demo songs, and MIDI recorder (40,000 notes) make it easier to practice, track progress, and improve timing.
- Portable & Performance-Ready: Weighing only 4.5kg and powered by either AC adaptor or 6 AA batteries, this keyboard is perfect for musicians on the move. Its dual speakers (13cm x 6cm) with 2.5W + 2.5W amplifiers provide clear, balanced sound for home or small performances.
- Modern Connectivity & Wireless Flexibility: USB micro B, stereo mini audio in/out, pedal input, headphone mode, and optional Bluetooth MIDI & Audio support allow seamless integration with recording software, smart devices, and stage setups.
Why Choose CASIO CT-S1RD from SpeedTech?
- Premium Sound & Build Quality: AiX sound engine, professional effects, and reliable hardware ensure long-term performance.
- Compact Yet Feature-Rich: Advanced tone control, wireless capability, and MIDI functionality in a slim body.
- Trusted Source – SpeedTech: Authentic products, dependable service, and competitive pricing for peace of mind.
Experience premium sound, wireless freedom, and sleek red design with the CASIO CT-S1RD Electronic Musical Instrument. Order today from SpeedTech and bring professional-quality music into your everyday performance.
