KORG KR11 Portable Rhythm Box Instruction Manual

1. Introduction

This manual provides essential information for the proper setup, operation, and maintenance of your KORG KR11 Portable Rhythm Box. Please read this manual thoroughly to ensure optimal performance and longevity of your device.

Figure 1: Top-down view of the KORG KR11 Portable Rhythm Box.

2. Product Features

• Compact and simple rhythm box for practice and play anywhere, anytime.
• Features 16 velocity-sensitive pads for detailed and nuanced finger drumming.
• Includes 126 distinct patterns across various genres like Blues/R&B, Country, and Island.
• Offers 14 user preset slots for saving and recalling your unique patterns.
• Equipped with a built-in speaker and Acoustage Bass technology for full-spectrum sonic fidelity.
• Portable design with battery-powered operation and optional AC adapter.
• Includes a headphone/line-out jack for external audio output.
• Features a built-in metronome for perfectly timed practice sessions, ensuring you stay on beat and improve your timing skills.
• Optional pedal switch facilitates start/stop, pattern change, and fill-in operations.
• Easy-to-use rhythm playback and customization with intuitive controls.

3. Setup

3.1 Powering the Unit

The KR11 can be powered by either AA batteries or an optional AC adapter.

• Batteries: Insert four (4) AA batteries into the battery compartment located on the underside of the unit. Ensure correct polarity.
• AC Adapter: Connect a compatible DC 9V AC adapter (sold separately) to the DC 9V input jack on the rear of the unit.

3.2 Audio Connections

The KR11 features a built-in speaker for immediate playback. For private listening or connecting to external audio systems, use the following ports:

• Headphone/Line-Out Jack: Connect headphones to this jack for private monitoring. Alternatively, use this output to connect the KR11 to an external amplifier, mixer, or recording device.

Figure 2: Side view illustrating the headphone/line-out jack and footswitch inputs.

3.3 Footswitch Connection

Two footswitch inputs (1 and 2) are provided for hands-free control during performance.

• Connect optional footswitches to the FOOT SW 1 and FOOT SW 2 jacks on the rear of the unit.
• These can be configured to control functions such as start/stop, pattern change, or fill-in operations. Refer to the Operating Instructions for configuration details.

Figure 3: Rear view displaying the DC 9V power input and footswitch jacks.

4. Operating Instructions

4.1 Power On/Off

• To power on, press and hold the POWER button (if available, otherwise assume automatic power on with power source).
• To power off, press and hold the POWER button until the unit shuts down.

4.2 Volume Adjustment

• Use the VOL knob to adjust the overall output volume of the unit.

4.3 Pattern Selection

The KR11 offers 126 preset patterns and 14 user preset slots.

1. Rotate the GENRE knob to select a genre (e.g., Rock, Blues/R&B, Jazz/Latin, EDM, Country, Island, 16 Beat, 8 Beat, 3/5/7, Metronome, User).
2. Press one of the 16 PADS (1-14 for patterns, 15-16 for fills) to select a pattern within the chosen genre.

Figure 4: Selecting a genre and pattern on the KORG KR11.

4.4 Tempo Adjustment

• Use the TEMPO knob to precisely adjust the beats per minute (BPM).
• Alternatively, press the TAP button in time with your desired tempo to set the BPM.

Figure 5: Adjusting tempo using the TAP button.

4.5 Using Velocity-Sensitive Pads

• The 16 pads are velocity-sensitive, meaning the sound's intensity changes based on how hard you press them. This allows for expressive finger drumming.

4.6 User Preset Slots

• To save a customized pattern, select the 'User' genre with the GENRE knob.
• Press and hold the MODE button, then press one of the 14 pads (1-14) to save your current pattern to that slot.
• To recall a user pattern, select the 'User' genre and press the corresponding pad.

4.7 Metronome Function

• Select 'Metronome' with the GENRE knob to activate the built-in metronome for timing practice.

4.8 Pedal Switch Functions

• The optional pedal switches can be configured to:
• Start/Stop pattern playback.
• Change patterns.
• Trigger fill-in patterns.
• Refer to the full KORG KR11 user manual for detailed instructions on assigning functions to the footswitches.

5. Maintenance

5.1 Cleaning

• Wipe the unit with a soft, dry cloth. Do not use abrasive cleaners, waxes, or solvents.

5.2 Battery Replacement

• When battery power is low, the unit's performance may degrade. Replace all four AA batteries with new ones.
• If the unit will not be used for an extended period, remove the batteries to prevent leakage and damage.

5.3 Storage

• Store the unit in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity.

6. Troubleshooting

6.1 No Sound Output

• Check the VOL knob and ensure it is turned up.
• Verify that headphones or external speakers are properly connected and their volume is adjusted.
• Ensure a pattern is selected and playback is active.

6.2 Unit Not Powering On

• If using batteries, check if they are correctly inserted and not depleted. Replace if necessary.
• If using an AC adapter, ensure it is properly connected and is the correct voltage (DC 9V).

6.3 Incorrect Tempo

• Adjust the TEMPO knob or use the TAP button to set the desired BPM.

7. Specifications

8. Warranty and Support

Your KORG KR11 Portable Rhythm Box is covered by a manufacturer's warranty. Please refer to the warranty card included with your product for specific terms and conditions.

For technical support, product registration, or further inquiries, please visit the official KORG website or contact their customer service department.

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