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Description

The Casio CT-640 is a versatile and user-friendly option perfect for both beginners and seasoned musicians seeking a portable yet powerful keyboard. Featuring 61 full-size keys, this arranger keyboard offers a broad palette of sounds and rhythms to explore. It packs an impressive array of 465 tones and 210 rhythms, allowing you to experiment across various musical styles, from classical to modern pop. The CT-640 is equipped with a robust sound engine that delivers high-quality audio, making it a reliable choice for home practice, live performances, or spontaneous jam sessions.

A standout feature of the CT-640 is its intuitive interface, designed to make navigation a breeze. The backlit LCD screen provides clear visibility of settings and modes, even in low-light environments. Casio’s efficient lesson mode is an excellent tool for those looking to improve their skills, offering step-by-step guidance and interactive practice sessions.

Connectivity is another strong suit of the Casio CT-640. With MIDI compatibility, you can easily connect to other devices or software, expanding your creative possibilities. The built-in stereo speakers ensure vibrant sound projection, while the headphone jack provides the option for quiet practice sessions.

Key Features:

  • 61 full-size keys for a realistic playing experience
  • 465 built-in tones and 210 rhythms
  • Backlit LCD screen for easy navigation
  • Lesson mode for guided learning
  • MIDI compatibility for extended connectivity
  • Built-in stereo speakers and headphone jack for versatile audio options

Product specs

Brand Casio
Model CT-640 61-Key Synthesizer
Finish Black
Year 1980s
Made In Japan
Categories Digital Synthesizers, Keyboard Synths
Analog / Digital Digital
Key Size Full Size
Keyboard Action Synth Action
MIDI I/O MIDI Input, MIDI Output, MIDI Through
Number of Keys 61 Keys
Polyphony 10 Voices

FAQs

What type of sound engine does the Casio CT-640 use?

The Casio CT-640 features a digital sound engine, which provides a variety of synthesized tones suitable for different musical styles.

How many keys does the Casio CT-640 have, and are they full-sized?

The Casio CT-640 has 61 full-sized keys, offering a comfortable playing experience similar to that of a traditional piano.

Is the Casio CT-640 capable of MIDI connectivity?

Yes, the Casio CT-640 is equipped with MIDI Input, Output, and Through, allowing it to connect with other MIDI-compatible devices for expanded functionality.

What is the polyphony of the Casio CT-640, and what does it mean?

The Casio CT-640 has a polyphony of 10 voices, meaning it can play up to 10 notes simultaneously, which is suitable for most basic compositions and performances.

Does the Casio CT-640 have built-in speakers?

Yes, the Casio CT-640 comes with built-in speakers, making it convenient for practice and small performances without needing external amplification.

KMNKeyboardVault

KMNKeyboardVault

Kris Nicholson Demos His Vintage Casio CT-640

Video thumbnail for Kris Nicholson Demos His Vintage Casio CT-640 by KMNKeyboardVault

Kris Nicholson Demos His Vintage Casio CT-640

KMNKeyboardVault

KMNKeyboardVault

Video thumbnail for Casio Casiotone CT-640 Keyboard by Weed Patch Music Company

Casio Casiotone CT-640 Keyboard

Weed Patch Music Company

Weed Patch Music Company

Video thumbnail for Casio CT-640 Midi Music Keyboard - 61 Key Piano Casiotone - 1988 by MR. SILVARADO

Casio CT-640 Midi Music Keyboard - 61 Key Piano Casiotone - 1988

MR. SILVARADO

MR. SILVARADO

Video thumbnail for CASIO CT-640 by Keyboards - review - repair

CASIO CT-640

Keyboards - review - repair

Keyboards - review - repair

Video thumbnail for Casio Casiotone CT-640 Thrift Store $30 Pickup by Nonsonic

Casio Casiotone CT-640 Thrift Store $30 Pickup

Nonsonic

Nonsonic

Video thumbnail for CASIO CT-640 Demo Song by Ian Wang

CASIO CT-640 Demo Song

Ian Wang

Ian Wang

Video thumbnail for Casio CT-640 keyboard by JisINSANE3

Casio CT-640 keyboard

JisINSANE3

JisINSANE3

Reviews

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Casio CT-640.

Features and functionality

  • The Casio CT-640's notes lose fidelity towards the end, creating an 80s sound when notes are held, possibly due to its PCM-based lofi audio samples.

    Source

Setup and maintenance

  • Aging electrolytic capacitors in the ADSR section may cause the noted fidelity loss, a common issue with older keyboards.

    Source
  • If powered by batteries, changing them might resolve fidelity issues, indicating a possible power delivery problem.

    Source

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