Douk Audio MC105 5-way XLR Selector Box User Manual

1. Product Overview

The Douk Audio MC105 is a versatile 5-channel XLR audio selector designed for managing multiple audio sources or destinations. It supports both 5-input to 1-output and 1-input to 5-output configurations, allowing users to easily switch between different audio equipment without repeatedly plugging and unplugging cables. Featuring high-quality components like NEC relays and gold-plated XLR ports, it ensures excellent signal integrity and minimal noise. The device includes both button and remote control for convenient operation and is housed in a durable metal shell.

2. Package Contents

Please check the package for the following items:

• 1 x XLR Audio Selector (MC105)
• 1 x Remote Control (AAA batteries not included)
• 1 x USB Cable (for DC5V power, power adapter not included)

3. Setup and Connections

The MC105 comes in two versions: 5-IN-1-OUT and 1-IN-5-OUT. Ensure you have the correct version for your application.

3.1 Power Supply

The device requires a DC5V (≥1A) power supply via its Type-C USB interface. A power adapter is not included; please provide your own.

3.2 Remote Control Batteries

The remote control requires 2x AAA batteries, which are not included for safer and faster delivery. Please install them before use.

3.3 Audio Connections

Connect your audio devices using XLR cables. The MC105 features gold-plated XLR ports for optimal signal transfer.

3.3.1 5-IN-1-OUT Configuration

This version allows you to connect up to five XLR audio sources (e.g., CD/DVD players, decoders) to the five female XLR input pairs (labeled 1-5) and output to a single XLR audio destination (e.g., power amplifier, mixer, preamp) via the male XLR I/O port.

3.3.2 1-IN-5-OUT Configuration

This version allows you to connect a single XLR audio source to the female XLR I/O port and output to up to five XLR audio destinations (e.g., multiple power amplifiers, speakers) via the five male XLR output pairs (labeled 1-5).

4. Operating Instructions

The MC105 can be operated using the front panel buttons or the included remote control.

4.1 Front Panel Controls

• Channel Selection (Click): Briefly press any of the numbered buttons (1-5) to select a single channel. The corresponding number will illuminate.
• Add Channel (Long Press 2s): Long press a numbered button for approximately 2 seconds to add that channel to the currently active channels. This allows multiple channels to work simultaneously.
• Power OFF (Long Press 4s): Long press any numbered button for approximately 4 seconds to power off the device.

4.2 Remote Control

The remote control provides convenient access to power and channel selection functions.

• ON/OFF Button: Press the red ON/OFF button to power the device on or off.
• Numbered Buttons (1-5): Press the numbered buttons to select the desired audio channel.

4.3 General Operation

• All 5 channels can work simultaneously, depending on the selected mode.
• The device supports setup option save, meaning your last selected channel configuration will be remembered after power cycling.

4.4 Product Demonstration Video

5. Maintenance

To ensure the longevity and optimal performance of your Douk Audio MC105, follow these maintenance guidelines:

• Cleaning: Use a soft, dry cloth to clean the exterior of the device. Avoid using liquid cleaners or abrasive materials, as they may damage the finish or internal components.
• Environment: Keep the device in a dry, well-ventilated area, away from direct sunlight, heat sources, and excessive dust or moisture.
• Handling: Handle the device with care. Avoid dropping it or subjecting it to strong impacts.
• Connections: Periodically check all cable connections to ensure they are secure and free from corrosion.

6. Troubleshooting

If you encounter any issues with your MC105, please refer to the following troubleshooting tips:

6.1 No Power

• Ensure the DC5V power supply is correctly connected to the Type-C USB port and is providing sufficient power (≥1A).
• Check if the power adapter is functioning correctly.
• If using the remote control, ensure the AAA batteries are correctly installed and not depleted.

6.2 No Audio Output or Intermittent Sound

• Verify that all XLR cables are securely connected to both the MC105 and your audio devices.
• Confirm that the correct input/output channel is selected on the MC105 (indicated by the illuminated button).
• Check the volume levels on your connected audio source and destination devices.
• Common Ground Noise: If you experience common ground noise, it may be due to compatibility issues with certain audio devices. Consider adding an isolation module between the MC105 and the problematic device.

6.3 Noise or Low Volume (5-IN-1-OUT Version)

• For the 5-IN-1-OUT version, it is generally not recommended to connect multiple groups of input simultaneously, as this may cause noise or low volume. This version is primarily designed for selecting one of five inputs to a single output.

7. Specifications

8. User Tips

• Noise Isolation: If you experience common ground noise with certain audio devices, consider purchasing and installing an audio isolation module. This can significantly improve sound clarity.
• Optimal Use for 5-IN-1-OUT: This version is ideal for comparing the sound performance of different audio sources (e.g., multiple DACs, CD players) through a single amplifier. For best results, activate only one input channel at a time.
• Optimal Use for 1-IN-5-OUT: This version is perfect for comparing the performance of multiple amplifiers or speakers using a single audio source. All five output channels can be active simultaneously.
• Power and Remote: Always ensure you have a compatible DC5V power supply and fresh AAA batteries for the remote control for uninterrupted operation.

9. Warranty and Support

For any technical support, warranty claims, or further inquiries, please contact the Douk Audio Official Store or refer to the manufacturer's official website. Keep your purchase receipt as proof of purchase.