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Black 76-key portable keyboard with built-in speakers and recording feature

CASIO

CASIO CT-S1-76BK 76-key musical keyboard Black

SKU CH-24HY-7BC10 MPN CT-S1-76BK

A 76-key electronic keyboard with 61 tones, onboard speakers, recording, USB connectivity, 3.5mm headphone jack and battery power, weighing 16.8 pounds

  • Number of key76
  • Keyboard76
  • Product typeElectronic keyboard
  • Product colorBlack
  • HighlightsRecording
  • Product weight16.8 lb (7.62 kg)
  • 76 keys give room for two-handed play
  • 61 built-in tones cover many musical styles
  • onboard speakers let you hear music without headphones
  • 5 mm headphone jack enables private practice
  • USB Type B or USB Type C connects to computers and mobile devices

76-Key Portable Keyboard for All Players

The Casio CT-S1-76BK is a 76-key electronic keyboard finished in black and weighing 16.8 pounds. It provides 61 built-in tones plus effects and an onboard recorder. USB Type B or USB Type C connectivity and a 3.5 mm headphones jack are included for integration with a computer or silent practice. Battery power is supported for portable use.

Step Up from 61 Keys When Range Matters

Moving from a 61-key instrument adds a full extra octave, which is worth it when repertoire or lesson material demands the extended compass. The recorder captures performances directly on the unit without extra gear. Players who need weighted hammer action or a larger sound library will find those features absent.

USB and Battery Limits to Plan For

The USB connection carries MIDI and audio data but does not charge the keyboard; separate batteries or an AC adapter must supply power. Batteries are not included, so mobile sessions require a fresh set on hand. The 3.5 mm jack is the only analogue audio output, restricting direct connection to professional balanced inputs.

How it compares

Measured against everything we stock in Digital Pianos & Keyboards, at today’s prices. Recalculated every night.

Price $284.99
Pricier than about 59% of the 30 comparable items (median $257.49).

Specifications

Product
Brand nameCasio
Model nameCT-S1
Part numberCT-S1-76BK
Product typeElectronic keyboard
Product colorBlack
Size & build
Product weight16.8 lb (7.62 kg)
Shipping weight3.46 kg
Package size1194 × 310 × 152 mm
More details
Number of key76
Keyboard76

Questions about this item

What are the exact dimensions I need to clear on a stand or desk for the CT-S1-76BK?

The keyboard measures 119.38 cm wide, 30.988 cm deep and 15.24 cm high, so allow at least that footprint plus a little extra for cables and the power adapter.

How do I power the CT-S1-76BK for the first time, and what is the common mistake?

Insert six AA batteries (not included) or connect the supplied AC adapter to the DC-in jack; the frequent error is forgetting to switch the rear power selector to the correct source before turning the unit on.

Which consumable items will need replacement during the life of the CT-S1-76BK?

The six AA batteries that provide portable power will need periodic replacement; the AC adapter and 3.5 mm headphone cable are the only other parts that may wear out over time.

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