COMICA BoomX-U Qua UHF Wireless Lavalier Microphone System User Manual

1. Introduction

The COMICA BoomX-U Qua is a professional UHF wireless lavalier microphone system designed for high-quality audio recording. This system features four transmitters and one receiver, making it suitable for multi-person interviews, filming, live streaming, and other professional audio applications. It offers stable signal transmission, versatile compatibility, and convenient monitoring capabilities.

2. Package Contents

Verify that all items listed below are included in your package:

• 1 x Receiver
• 4 x Transmitters
• 4 x Lav Mic
• 4 x Wind Muff
• 1 x 3-in-1 USB-C Charging Cable
• 1 x 3.5mm TRS-Dual XLR Cable
• 1 x 3.5mm TRS Cable
• 1 x Carry Case

Image 2.1: All components of the COMICA BoomX-U Qua system.

Image 2.2: Detailed view of the included accessories and main units.

3. Product Overview

The BoomX-U Qua system consists of a receiver and four transmitters, each equipped with a built-in microphone and an input for an external lavalier microphone.

3.1 Transmitter (TX)

• Built-in Microphone: For direct audio capture.
• External Lavalier Microphone Input: Connect the included lavalier microphone for discreet placement.
• Power/Pairing Button: Controls power and initiates pairing.
• Status Indicator: Displays power, pairing, and battery status.

3.2 Receiver (RX)

• Display Screen: Shows channel status, audio levels, battery, and mixing mode.
• Control Buttons: For menu navigation, channel selection, and volume adjustment.
• 180° Foldable Antenna: Enhances signal stability and range.
• Audio Output Ports: 3.5mm TRS/TRRS and XLR outputs for various devices.
• Headphone Monitoring Port: For real-time audio monitoring.

Image 3.1: Demonstrates the use of the external lavalier microphone versus the transmitter's built-in microphone.

4. Setup Guide

4.1 Powering On/Off

1. To power on, press and hold the power button on both the transmitter(s) and receiver until the display or indicator light activates.
2. To power off, press and hold the power button until the device shuts down.

4.2 Connecting to Recording Devices

The BoomX-U Qua offers wide compatibility with various recording devices:

• DSLR Cameras/Camcorders: Use the 3.5mm TRS cable for connection.
• Smartphones: Use the 3.5mm TRRS cable. (Note: For iPhones without a 3.5mm jack, an official Lightning to 3.5mm adapter is required. For some Android phones, a USB-C to 3.5mm adapter may be needed.)
• Audio Mixers/Professional Equipment: Use the 3.5mm TRS-Dual XLR cable for balanced audio input.

Image 4.1: Illustrates various connection types and compatible devices including cameras, camcorders, recorders, and smartphones.

4.3 Pairing Transmitters and Receiver

The system supports both auto-scanning and manual channel setting for pairing.

• Auto-scanning: This feature automatically finds and assigns the best available channel, ideal for quick setup in most scenarios. Refer to the receiver's menu for auto-scan options.
• Manual Channel-setting: Allows you to manually select specific channels for each transmitter. This is useful in environments with potential interference or when precise channel management is required.

Image 4.2: Shows the auto-scanning and manual channel setting interface on the receiver.

5. Operating Instructions

5.1 Audio Mixing Modes

The receiver offers flexible audio output options:

• Mixed Output (MIX ALL): All four audio tracks from the transmitters are combined into a single output track. This is suitable for scenarios where a single, combined audio feed is desired.
• Individual Output (MIX None): Each of the four audio tracks is output independently. This allows for greater control during post-production, enabling individual adjustment of each microphone's audio.

Image 5.1: Receiver display showing the 'MIX ALL' mode, combining all four channels.

Image 5.2: Receiver display showing 'MIX None' mode, providing independent audio tracks.

5.2 Real-Time Audio Monitoring

Connect headphones to the receiver's 3.5mm monitoring port to listen to the audio in real-time during recording. This allows for immediate detection and adjustment of any audio issues.

Image 5.3: Diagram illustrating real-time monitoring connection to the receiver.

6. Charging and Battery Life

The BoomX-U Qua system is powered by rechargeable Lithium Polymer batteries. The transmitters have a 700mAh battery, and the receiver has a 1400mAh battery, providing up to 6.5 hours of working time.

• Charging: Use the included 3-in-1 USB-C charging cable to charge all units simultaneously. Connect the USB-C end to the charging ports on the transmitters and receiver, and the USB-A end to a compatible USB power adapter (not included).
• Charging While in Use: The system supports charging while operating, ensuring uninterrupted recording sessions.

Image 6.1: Illustrates the charging process for the transmitters and receiver using the 3-in-1 USB-C cable.

7. Maintenance

• Keep the devices dry. Do not expose them to rain or moisture.
• Store in a cool, dry place away from direct sunlight and extreme temperatures.
• Clean the units with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
• Ensure the antennas are not bent or damaged during transport or storage.
• Regularly check cables for wear and tear.

8. Troubleshooting

If you encounter issues with your BoomX-U Qua system, refer to the following common problems and solutions:

9. Specifications

Key technical specifications for the COMICA BoomX-U Qua system:

10. Warranty and Support

COMICA products typically come with a standard manufacturer's warranty. For specific warranty details, registration, or technical support, please refer to the warranty card included in your package or visit the official COMICA website. Keep your purchase receipt as proof of purchase for warranty claims.