KORG KR-55 Owner's Manual

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KORG KR-55 Specification

The KORG KR-55 is a vintage analog drum machine that gained popularity for its realistic drum sounds and intuitive design, making it a valuable tool for musicians seeking authentic rhythm accompaniment. Released originally in the late 1970s, the KR-55 features a robust set of pre-programmed drum patterns, covering a range of musical styles such as rock, bossa nova, samba, and waltz. It is equipped with an analog sound engine that delivers a warm and organic drum sound, characteristic of the era's electronic instruments.

The KR-55 offers 16 rhythm patterns with the ability to combine multiple patterns for more complex arrangements. Users can fine-tune the tempo with the onboard tempo control knob, allowing for seamless integration into various musical contexts. It includes separate volume controls for each drum sound, providing flexibility and customization in the mix. The machine's interface is straightforward, with clearly labeled buttons and knobs that afford ease of use even for beginners.

Connectivity options on the KR-55 include standard 1/4-inch audio outputs, making it compatible with a wide range of amplification and recording systems. The unit is also compact and portable, housed in a durable casing that withstands the rigors of both studio and live environments. The KR-55 does not feature MIDI capabilities, as it predates the development of this technology, but its analog charm has led to a resurgence of interest among collectors and enthusiasts of vintage gear. The KR-55 remains a sought-after piece for its distinctive sound and the nostalgic appeal it holds within the history of electronic music instruments.

KORG KR-55 F.A.Q.

How do I connect the KORG KR-55 to an external amplifier?

To connect the KORG KR-55 to an external amplifier, use a standard 1/4-inch instrument cable. Connect one end to the 'Output' jack on the KR-55 and the other end to the input of your amplifier. Ensure both devices are powered off before connecting to avoid any potential damage.

What should I do if the KR-55 does not power on?

If the KR-55 does not power on, first check the power adapter connection. Ensure that it is securely connected to both the unit and a working power outlet. If the issue persists, try using a different compatible adapter, and check the internal fuse if applicable.

How can I perform a factory reset on the KORG KR-55?

To perform a factory reset on the KR-55, hold down the "Reset" button while turning on the power. Keep holding the button until the display shows 'Factory Reset'. Release the button to confirm. This will erase all user settings and restore factory defaults.

What is the best way to clean the KORG KR-55?

To clean the KR-55, turn off the unit and unplug it from the power source. Use a dry, soft cloth to gently wipe the surfaces. Avoid using any harsh chemicals or abrasive materials, as they can damage the finish and electronic components.

How do I change the tempo on the KR-55?

To change the tempo on the KR-55, use the 'Tempo' knob located on the front panel. Rotate the knob clockwise to increase the tempo or counterclockwise to decrease it. The current tempo will be displayed on the LED screen.

Why is there no sound coming from the KR-55?

If there is no sound coming from the KR-55, check the volume level and ensure it is not set to the minimum. Verify that all cables are connected properly and that the connected amplifier or headphones are functioning correctly. Also, ensure that the correct output is selected.

Can I use batteries to power the KR-55?

Yes, the KORG KR-55 can be powered using six D-cell batteries. Open the battery compartment on the back of the unit and insert the batteries, ensuring the correct polarity. This allows for portable use without a power adapter.

How do I sync the KR-55 with other MIDI devices?

To sync the KR-55 with other MIDI devices, connect a MIDI cable from the 'MIDI OUT' of the KR-55 to the 'MIDI IN' of the other device. Set the KR-55 to send or receive MIDI clock, depending on whether it will be the master or slave device.

What should I do if the KR-55's buttons are unresponsive?

If the buttons on the KR-55 are unresponsive, power cycle the device by turning it off and on again. If the issue persists, check for any debris around the buttons and perform a factory reset if necessary. Contact KORG support if the problem continues.

How can I update the firmware on my KR-55?

To update the firmware on the KR-55, visit the KORG website to download the latest firmware file. Transfer the file to a USB drive, insert it into the KR-55's USB port, and follow the on-screen instructions to complete the update.