1. Introduzione
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. Cuntenutu di u pacchettu
Verificate chì tutti l'articuli elencati quì sottu sò inclusi in u vostru pacchettu:
- 1 x Ricevitore
- 4 x trasmettitori
- 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.

Imagine 2.2: Dettagliata view of the included accessories and main units.
3. Produttu Finituview
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 Trasmettitore (TX)
- Microfonu integratu: For direct audio capture.
- External Lavalier Microphone Input: Connect the included lavalier microphone for discreet placement.
- Pulsante Power/Pairing: Controls power and initiates pairing.
- Indicatore di Status: Displays power, pairing, and battery status.
3.2 Ricevitore (RX)
- Pantalla di visualizazione: Shows channel status, audio levels, battery, and mixing mode.
- Buttuni di cuntrollu: For menu navigation, channel selection, and volume adjustment.
- 180° Foldable Antenna: Enhances signal stability and range.
- Porti di Output Audio: 3.5mm TRS/TRRS and XLR outputs for various devices.
- Headphone Monitoring Port: Per u monitoraghju audio in tempu reale.

Image 3.1: Demonstrates the use of the external lavalier microphone versus the transmitter's built-in microphone.
4. Setup Guide
4.1 Accensione / spegnimentu
- To power on, press and hold the power button on both the transmitter(s) and receiver until the display or indicator light activates.
- Per spegne, appughjà è mantene u buttone di putenza finu à chì u dispusitivu si ferma.
4.2 Cunnessione à i dispusitivi di registrazione
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. Caricamentu è durata di a batteria
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.
- Carica: 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).
- Carica durante l'usu: 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. Mantenimentu
- Keep the devices dry. Do not expose them to rain or moisture.
- A conserver dans un endroit frais et sec à l'abri de la lumière directe du soleil et des températures extrêmes.
- Pulite l'unità cù un pannu dolce è asciuttu. Evitate l'usu di prudutti chimichi aggressivi o di detergenti abrasivi.
- Ensure the antennas are not bent or damaged during transport or storage.
- Regularly check cables for wear and tear.
8. Risoluzione di prublemi
If you encounter issues with your BoomX-U Qua system, refer to the following common problems and solutions:
| Prublemu | Causa Possibile | Soluzione |
|---|---|---|
| Nisuna output audio | Incorrect cable connection; Low battery; Unpaired units; Muted microphone/receiver. | Check all cable connections; Charge units; Re-pair transmitters and receiver; Ensure units are not muted. |
| Audio dropouts or interference | Obstructions between TX/RX; Excessive distance; External RF interference; Low battery. | Ensure clear line of sight; Reduce distance between units; Perform auto-scan for a clear channel; Charge units. |
| Poor audio quality (hiss, static) | Interference; Incorrect gain settings; Damaged lavalier mic/cable. | Change channels; Adjust gain levels on TX/RX; Test with a different lavalier microphone or cable. |
| Unità chì ùn si accoppianu micca | Incorrect pairing procedure; Out of range. | Refer to pairing instructions in Section 4.3; Ensure units are close during pairing. |
9. Specificazioni
Key technical specifications for the COMICA BoomX-U Qua system:
| Feature | Specificazione |
|---|---|
| Numeru di mudellu di l'articulu | BoomX-U QUA |
| Fattore di forma di microfonu | Lavalier |
| Fonte d'energia | Alimentatu à batteria |
| Numero di canali | 24 |
| Rapportu Signal-to-Noise | 70 dB |
| Sensibilità Audio | 100 Decibel |
| U mudellu polare | Unidirezionale |
| Tecnulugia di cunnessione | Auxiliary, UHF, XLR |
| Tipu di cunnessu | Jack 3.5 mm, XLR |
| Dispositivi compatibles | Audio Mixer, Camcorder, Camera, Laptop, Smartphone |
| Pesu di l'articulu | 243 grammi (8.6 once) |
| Tipu di batterie | Lithium Polymer (Transmitter: 700mAh, Receiver: 1400mAh) |
| Tempu di travagliu | Finu à 6.5 ore |
| Funzioni spiciali | 180° Foldable Antenna, 4 Audio Tracks Mixing / Individual Output, Multi-receiver Monitoring & Shooting, Support Charging While in Use |
10. Garanzia è 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 websitu. Conservate a vostra ricevuta d'acquistu cum'è prova d'acquistu per e richieste di garanzia.





