Douk Audio MC105 XLR Selector Box Instruction Manual

Introduction

The Douk Audio MC105 is a versatile 5-channel stereo audio splitter designed to manage multiple XLR audio sources or destinations. It comes in two main configurations: a 1-input, 5-output (1-IN-5-OUT) version and a 5-input, 1-output (5-IN-1-OUT) version. This manual provides detailed instructions for setting up, operating, and maintaining your MC105 unit, ensuring optimal performance and longevity.

The unit features high-quality gold-plated XLR ports, imported NEC relays, and a robust metal housing to minimize external noise and ensure high-fidelity signal transmission. It supports both HOT/COLD mode switching and a GND common terminal, offering flexibility for various audio setups. Control is available via front panel buttons and an included remote control.

Safety Information

• Ensure the unit is placed on a stable, level surface to prevent accidental falls.
• Do not expose the unit to water, moisture, or excessive humidity.
• Avoid placing the unit near heat sources or in direct sunlight.
• Use only the specified DC5V power supply (not included) with a Type-C USB interface.
• Do not attempt to open or service the unit yourself. Refer all servicing to qualified personnel.
• Keep the remote control batteries (2x AAA, not included) out of reach of children.

Package Contents

Please check the package for the following items:

• 1 x Douk Audio MC105 XLR Audio Selector
• 1 x Remote Control (batteries not included)
• 1 x USB Cable (for power)

Product Overview

The MC105 features a sleek design with a front panel for input selection and an infrared receiver for remote control. The rear panel houses the XLR input/output ports and the DC5V Type-C power input.

Front Panel

• Infrared Receiver: For remote control signals.
• Input Select Buttons (1-5): Press to select a single channel. Long press (2 seconds) to add a channel to work together (for 1-IN-5-OUT version). Long press (4 seconds) on any button to power off the unit.

Rear Panel (1-IN-5-OUT Version)

• I/O (Female XLR): Single female XLR input for audio source (e.g., CD/DVD/Decoder player).
• 1-5 (Male XLR): Five male XLR outputs for connecting to multiple amplifiers, mixers, or preamps.
• DC5V IN (Type-C USB): Power input port.

Rear Panel (5-IN-1-OUT Version)

• 1-5 (Female XLR): Five female XLR inputs for connecting multiple audio sources (e.g., CD/DVD/Decoder players).
• I/O (Male XLR): Single male XLR output for connecting to an amplifier, mixer, or preamp.
• DC5V IN (Type-C USB): Power input port.

Setup and Connections

Before making any connections, ensure all audio equipment is powered off.

Power Supply

1. Connect the provided USB cable to the DC5V IN (Type-C USB) port on the rear panel of the MC105.
2. Connect the other end of the USB cable to a DC5V (≥1A) power adapter (not included).

Connecting Audio Devices (1-IN-5-OUT Version)

1. Connect your single audio source (e.g., CD player, DAC) to the I/O (Female XLR) input on the rear panel using an XLR cable.
2. Connect up to five audio receiving devices (e.g., power amplifiers, mixers, preamps) to the 1-5 (Male XLR) outputs on the rear panel using XLR cables.

Connecting Audio Devices (5-IN-1-OUT Version)

1. Connect up to five audio sources (e.g., CD players, DACs) to the 1-5 (Female XLR) inputs on the rear panel using XLR cables.
2. Connect your single audio receiving device (e.g., power amplifier, mixer, preamp) to the I/O (Male XLR) output on the rear panel using an XLR cable.

Note for 5-IN-1-OUT version: It is not recommended to connect multiple groups of inputs simultaneously as this may cause noise or low volume. Select only one input at a time for optimal performance.

Operation

Powering On/Off

• To power on: Connect the DC5V power supply. The unit will automatically power on.
• To power off: Long press any input select button on the front panel for 4 seconds.

Channel Selection

The MC105 offers flexible channel selection via both the front panel and the remote control.

Using Front Panel Buttons:

• Single Channel Selection: Click any button (1-5) to select that specific channel. The corresponding LED indicator will light up.
• Multiple Channel Selection (1-IN-5-OUT Version Only): Long press any button (1-5) for 2 seconds to add that channel to the currently active channels. This allows multiple outputs to be active simultaneously.

Using Remote Control:

Insert 2x AAA batteries (not included) into the remote control before use.

• ON/OFF Button: Powers the unit on or off.
• Channel Buttons (1-5): Press to select the desired channel.

The MC105 supports setup option saving, meaning your last selected channel configuration will be remembered when the unit is powered off and on again.

User Tips

• Ground Loop Noise: If you experience common ground noise, consider adding an audio isolation module between the MC105 and your audio device.
• 5-IN-1-OUT Usage: For the 5-IN-1-OUT version, it is strongly recommended to only have one input source active at a time to prevent potential noise or low volume issues.
• Remote Control Batteries: Remember to purchase 2x AAA batteries for the remote control, as they are not included in the package.

Troubleshooting

Specifications

Maintenance

• Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or abrasive materials.
• Storage: When not in use for extended periods, store the unit in a cool, dry place away from direct sunlight and extreme temperatures.
• Cable Management: Ensure cables are not excessively bent or strained to prevent damage to the connectors or the unit.

Warranty and Support

For warranty information, technical support, or service inquiries, please contact the manufacturer or your point of purchase. Keep your purchase receipt as proof of purchase.