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Korg CA40 Advanced Solo Tuner

By Korg

$16.94

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With superior features like a large, easy-to-read, LCD needle-style display, the Korg CA-40 Chromatic Tuner is a great value! Expect nothing but the best from this highly functional digital tuner!

With a wide range that covers A0 (27.50 Hz) - C8 (4186.01 Hz), you can tune a variety of instruments with the Korg CA-40, including wind, string, and keyboard instruments. You can use the built-in high-sensitivity microphone to detect the pitch of an acoustic instrument without the need for any other equipment. Alternatively, you can use the separately sold CM-100 contact microphone so that you can tune accurately without worrying about other sounds in the environment. An output jack (bypass) has been added to this digital tuner, making it easy to check the tuning even while you perform.

The CA-40's display has been enlarged for even clearer visibility. In addition to providing both the accuracy of an LCD and the easy viewing of a needle-style meter, red and green LEDs are also provided to indicate pitch deviations, making tuning smooth and easy.

In addition to letting you tune visually using the meter, this digital tuner provides a Sound Out function that plays a reference tone through the internal speaker, allowing you to tune by ear. You can adjust the reference tone in semitone steps over a range of C4 through C5 to accommodate a variety of instruments. Since the reference tone you specify is remembered, it's easy to sound it again whenever you need to.

The Calibration function of this hand held tuner lets you adjust the pitch in 1 Hz steps over a range of 410 - 480 Hz in order to accommodate a variety of concert pitches, giving you the flexibility to tune accurately to any song or key. There's also a memory backup function that preserves the Calibration setting and Sound Out settings even when you turn off the power.

The power of this digital tuner will turn off automatically if the unit is left powered-on for 20 minutes without performing any operation, avoiding unnecessary battery consumption.


The CA-40 is designed for long battery life, and allows approximately 85 hours of continuous use (continuous A4 input, Meter mode, zinc-carbon batteries). It also features a power-off functions will turn off automatically if the unit is left on for 20 minutes without performing any operation, avoiding unnecessary battery consumption.

The calibration setting and the Sound Out reference pitch are remembered even when you turn off the power. However, when you replace the batteries, these settings will be initialized to the default values; the calibration will return to 440 Hz, and the Sound Out reference pitch will return to A.

  • Compact chromatic tuner, ideal for use with guitars, wind or string instruments and brass bands or orchestras
  • Wide detection range from A0 - C8
  • Bypass function
  • Large, high-precision LCD needle-style meter
  • Sound Out function
  • Adjustable calibration
  • Auto Power Off function
  • Memory Backup function (unless batteries are replaced)
Type Chromatic guitar tuner
Dimensions (mm) 100 x 17 x 67
Weight (g) 88

If you decide an equipment item is not suitable within 10 days of delivery, you can return it to us for a replacement or refund. Returns must be unused and in their original, undamaged packaging.

Some items are excluded from our money back guarantee, including:
• Computer software that has been unsealed or registered
• Any item that comes directly into contact with the nose, ears or mouth

To arrange a return, just contact our customer service department on 020 7424 2800 or email us at support@juno.co.uk


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