Casio CT-403

$233.27 Price Tier: Standard

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Page last updated Jun 20, 2026

Pricing and availability

We compare 600+ stores and found this item at 1 store. Prices updated June 20, 2026.

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$233.27 4 available Used

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Average Price: $233

Standard/Professional

$100

$601+

Price Tier

In the Portable & Arranger Keyboards category, Casio CT-403 is priced in the Standard/Professional range. This is quality gear at a fair price point, suitable for beginners, hobbyists, and pros alike.

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Description

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Designed for both beginners and seasoned musicians alike, the Casio CT-403 offers a blend of functionality and portability, making it a versatile addition to any musician's toolkit. This 49-key keyboard provides a user-friendly interface that allows musicians to experiment with a variety of sounds and styles, from rock to classical. Its lightweight design ensures that it can be easily transported, whether you're heading to a gig or a casual jam session with friends.

The CT-403 is equipped with an array of built-in tones and rhythms, enabling users to explore different musical genres and styles without the need for additional equipment. Its intuitive interface makes it easy to navigate through the various sound options, ensuring that creativity flows uninterrupted. Additionally, the keyboard's battery-powered capability means that it can be used virtually anywhere, providing flexibility for musicians on the move.

Whether you're composing new tunes or practicing your favorite songs, the Casio CT-403 offers a reliable platform with a range of customization options to suit your musical needs. Its robust construction ensures durability, while the array of features provides an engaging experience for all levels of players.

Key Features:

49 full-size keys for a comfortable playing experience
A variety of built-in tones and rhythms to explore different musical styles
Lightweight and portable design, perfect for musicians on the go
User-friendly interface for easy navigation and sound selection
Battery-powered operation for ultimate flexibility in performance locations

Product specs

Brand	Casio
Model	CT-403 49-Key Synthesizer
Finish	Natural
Year	1980s
Made In	Japan
Categories	Digital Synthesizers, Keyboard Synths
Analog / Digital	Digital
Key Size	Full Size
Keyboard Action	Synth Action
Number of Keys	49 Keys
Polyphony	8 Voices

FAQs

How many voices of polyphony does the Casio CT-403 offer?: The Casio CT-403 features 8-voice polyphony, allowing you to play up to eight notes simultaneously.
What type of keys does the Casio CT-403 have?: The Casio CT-403 comes with full-size keys and a synth action, providing a responsive and smooth playing experience.
Is the Casio CT-403 suitable for beginners?: Yes, the Casio CT-403 is a user-friendly keyboard that is well-suited for beginners due to its straightforward interface and manageable size.
Does the Casio CT-403 have built-in speakers?: Yes, the Casio CT-403 includes built-in speakers, making it convenient for practicing and performing without the need for external amplification.
What is the primary use of the Casio CT-403?: The Casio CT-403 is designed as a portable digital synthesizer, ideal for creating and experimenting with electronic music sounds.

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keyboard resource

1982 CASIO CasioTone CT 403

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Casio CT-403.

User experience

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The CT-403 is noted for its warm sounds and aesthetic appeal, frequently used in recordings for its unique tonal qualities.
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Early users from the 1980s often expected self-playing capabilities from keyboards like the CT-403, although this model required more manual interaction to produce music.
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Use cases and applications

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The CT-403 has been creatively used to replicate Indonesian musical bus horns in the pop genre called kalason, utilizing its consonant-vowel synthesis tones.
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The CT-403 has been associated with creating tranquil and dreamy music, ideal for chill and relaxing vibes, as noted by multiple users.
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Build quality

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An owner described the CT-403 as "heavy," indicating both physical weight and substantial presence in sound.
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Features and functionality

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The CT-403 is recognized for a unique 'frog' sound, highlighting its quirky and diverse sound palette.
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The stereo output of the CE-1 Chorus pedal offers a distinct sound that enhances the CT-403's tonal qualities, preferred over the mono output.
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Mods and upgrades

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Owners recommend pairing the CT-403 with a CE-1 Chorus pedal and Keeley Caverns V2 for enhanced warm tones and clean reverb tails.
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Setup and maintenance

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Using a Radial stereo DI can effectively reduce noise from the CT-403 when combined with other pedals like the CE-1.
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Comparisons

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Users note that the CT-403's sound, when combined with effects, can resemble modern hip-hop tracks, like the intro to "Good Drank" by 2 Chainz.
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