# Casio CT-S1 Digital Synthesizer, 61 Keys, Black

**URL:** https://aio.lv/en/product--casio-mu-ct-s1-bk--5054672
**Data updated:** 2026-05-18 02:49 (EEST)
**Category:** DJ Controllers & MIDI keyboards
**Manufacturer:** CASIO
**Manufacturer code:** MU CT-S1 BK
**EAN:** 4971850315070
**Warranty:** 3 Years
**Availability:** Available for order
**Price:** 205.99 €
**Prices and availability valid until:** 2026-07-18 23:59
**Price without VAT (21%):** 170.24 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--casio-mu-ct-s1-bk--5054672

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.06.2026 | free |
| Pickup points | 30.06.2026 | 1.99 EUR |
| Courier delivery to door | 30.06.2026 | 4.99 EUR |

## Summary description

The Casio CT-S1 is a compact 61-key digital synthesizer designed for expressive performance and portability. Featuring a sleek black finish, it offers versatile sound options and supports both AC and battery power, making it ideal for home practice, studio use, or mobile music creation. This instrument provides a high-quality playing experience for musicians of all levels looking for a reliable and intuitive keyboard.

## Long description

The Casio CT-S1 is a compact, 61-key digital synthesizer designed to combine expressive performance with modern portability. Featuring a sleek black finish and a minimalist aesthetic, this instrument is built to fit seamlessly into any living space or studio environment. At its core, the CT-S1 utilizes Casio’s advanced AiX sound source, which delivers high-quality, authentic tones ranging from grand pianos to vintage synthesizers. With its intuitive interface and lightweight design, it serves as an excellent tool for musicians of all skill levels who require a reliable and inspiring keyboard for practice, composition, or mobile music creation.
Advantages
The primary strength of the Casio CT-S1 lies in its balance of professional sound quality and user-friendly operation. The inclusion of 61 full-size, touch-sensitive keys ensures that players can convey nuance and dynamics in their performance, mimicking the feel of an acoustic instrument. The integrated Bass Reflex speaker system and Surround Sound mode provide a surprisingly rich and immersive audio experience for a keyboard of this size. Furthermore, the instrument is highly versatile, supporting both AC power and battery operation, which allows for complete freedom of movement. The integration of modern connectivity options, such as USB-MIDI and optional Bluetooth support, makes it a future-proof choice for those who wish to utilize music learning apps or integrate the keyboard into a digital audio workstation setup.
Suitable for
Beginners learning to play piano at home
Music students using educational apps and software
Songwriters needing a portable instrument for capturing ideas
Performers requiring a lightweight keyboard for mobile setups
Musicians interested in vintage synth and electric piano tones
The Casio CT-S1 may not be the ideal choice for professional pianists who require a full 88-key weighted hammer-action keyboard for advanced classical repertoire. Additionally, as it is designed primarily as a compact synthesizer, it lacks the extensive multi-track sequencing and deep sound-editing capabilities found in high-end professional workstations.
Key specifications
61 full-size, touch-sensitive keys
AiX sound source technology
Built-in Bass Reflex speaker system
Integrated song recorder
USB-MIDI connectivity
Supports optional Bluetooth MIDI and Audio adapter
Battery-powered operation (6 AA batteries)
Weight: 4.5 kg
To begin using the Casio CT-S1, simply connect the power adapter or insert batteries into the compartment on the underside of the unit. Once powered on, you can select from the 61 onboard tones using the intuitive control panel. To utilize the keyboard with external devices, connect a USB cable to your computer or tablet to access music learning software or MIDI recording applications. The built-in recorder allows you to capture your musical ideas instantly by pressing the record button, making it easy to review and refine your playing.
What to consider before purchase
Ensure you have a compatible USB cable if you plan to connect to a computer or tablet.
Consider purchasing the optional Bluetooth dongle if you require wireless MIDI or audio streaming.
Check if the 61-key range is sufficient for the specific musical pieces you intend to learn.
Verify if you need a sustain pedal, as it is an optional accessory for this model.
For the best experience, we recommend exploring the Casio Music Academy and the Chordana Play app to maximize your learning potential. Regularly updating your firmware and utilizing the built-in surround sound mode will help you get the most out of the instrument's high-quality sound engine.

## Specifications

| Feature | Value |
|---|---|
| Weight | 4.5 kg |
| Battery type | AA |
| Keyboard number of keys | 61 |
| Number of batteries supported | 6 |
| Product colour | Black |
| Headphone outputs | 1 |
| DC-in jack | Yes |
| Foot pedal input | Yes |
| Power source type | AC, Battery |
| Sound effects quantity | 61 |
| USB ports quantity | 2 |
| Product type | Digital synthesizer |

## FAQ

### How much does the Casio CT-S1 Digital Synthesizer 61 Keys cost, and is it available for purchase?

The price is 205.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 9 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 25.06.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Casio CT-S1 Digital Synthesizer 61 Keys be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All CASIO products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized CASIO service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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