KORG OT-120 Owner's Manual

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Year 2005

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KORG OT-120 Specification

The KORG OT-120 is a sophisticated orchestral tuner designed to meet the tuning needs of various orchestral instruments with precision and ease. This chromatic tuner is equipped with a dual display system that incorporates both a needle-style meter and an LCD screen. The meter provides real-time tuning feedback with high visibility, while the LCD offers additional information such as note name and octave. The OT-120 supports a wide detection range from A0 (27.50 Hz) to C8 (4186.01 Hz), accommodating a broad spectrum of instruments. It features a calibration function that allows users to adjust the pitch reference in 1 Hz steps from 349 to 499 Hz, ensuring compatibility with diverse tuning standards.

Its sound out mode generates a reference tone, facilitating ear training and pitch matching. The tuner is designed with a built-in microphone for acoustic instruments and includes an input jack for electric instruments, offering versatile connectivity options. The sleek, vertical design enhances portability and ergonomics, making it convenient for musicians on the go. The OT-120 is powered by two AAA batteries, providing extended operational time, and includes an auto power-off function to conserve battery life. The tuner also comes with a durable carrying case, ensuring protection during transport. Overall, the KORG OT-120 is a reliable and versatile tool, suitable for professional musicians seeking precise and adaptable tuning capabilities.

KORG OT-120 F.A.Q.

How do I calibrate the KORG OT-120 for accurate tuning?

To calibrate the KORG OT-120, turn the calibration dial to adjust the reference pitch. The default is A=440Hz, but you can change it to match the pitch standard you require.

What should I do if the display on the OT-120 is not turning on?

First, check if the batteries are correctly installed and have enough charge. If using an AC adapter, ensure it's properly connected and functioning. If the issue persists, contact KORG support.

How can I switch between different tuning modes on the OT-120?

Press the 'MODE' button to cycle through the available tuning modes: chromatic, guitar, bass, violin, viola, cello, and double bass.

What is the best way to maintain the accuracy of my OT-120 tuner?

Keep the tuner clean and dust-free. Store it in a protective case when not in use, and replace batteries regularly to prevent power-related issues.

Can I use the OT-120 with a transposing instrument?

Yes, the OT-120 has a transposition feature. Use the 'TRANSPOSE' button to set the desired key. The display will show the transposed note names.

What does the needle in the OT-120 display indicate?

The needle indicates the pitch accuracy. When it points to the center, the pitch is in tune. If it leans left, the pitch is flat; if it leans right, the pitch is sharp.

How do I replace the batteries in the OT-120?

Open the battery compartment on the back of the tuner. Remove the old batteries and insert new ones, ensuring the correct polarity. Close the compartment securely.

Why does the OT-120 show erratic tuning results?

Erratic results may be due to interference or low battery power. Ensure you're in a quiet environment and replace the batteries if needed.

Is the OT-120 suitable for outdoor use?

While the OT-120 can be used outdoors, be cautious of environmental factors such as wind and humidity, which can affect its performance.

How do I reset the OT-120 to its factory settings?

To reset the OT-120, turn it off, then press and hold the 'CALIB' and 'MODE' buttons simultaneously while turning it back on. Release the buttons when the display initializes.