1. Introduction
The G-MARK X320FM is a wireless microphone system specifically designed for small to medium-sized events such as speeches, parties, and street performances. It features a robust and aesthetically pleasing design with durable metal handheld microphones. The system incorporates a unique neon halo design, making it suitable for use in low-light environments. Key functionalities include lightning-fast frequency matching and conversion, ID locking to prevent interference, and an impressive unobstructed receiving distance of 80-100 meters, offering users freedom of movement without the constraints of microphone cables.
2. Key Features
- All-Metal Body Design: Ensures durability and a premium feel.
- UHF Band Transmission: Operates within an adjustable frequency range of 520-580MHz for stable signal transmission.
- Lightning Matching Frequency: Quick and easy synchronization between microphones and receiver upon power-on.
- Lightning Frequency Conversion: One-button frequency change to avoid interference.
- ID Lock Function: Prevents the receiver from matching with other microphones on the same frequency, ensuring secure operation.
- LCD Display: Both receiver and transmitters feature LCD screens for clear visibility of working status.
- Separate Antenna Design: Enhances received signal strength and contributes to a high-end appearance.
- Multiple Output Options: Includes one 6.3mm output and two balanced XLR outputs for versatile connectivity with external audio devices.
- Efficient Power Consumption: Microphones consume 130mA and use standard AA batteries.
- Extended Wireless Range: Approximately 80-100 meters unobstructed receiving distance.
- Secure Audio Transmission: Audio and data are transmitted with 32-bit encryption and independent ID codes to effectively prevent crosstalk and interference.
- Infrared Synchronization: Transceiver uses 8-bit encrypted infrared transmission for synchronization.
- Battery Status Monitoring: The receiver can display the battery status of the transmitters.
- High-Fidelity Dynamic Microphone Head: Delivers clear and true vocal reproduction.
- Neon Halo Design: Unique visual indicator, especially useful in dark settings.
3. Package Contents
Please check the box for the following items:
- 1 x X320FM Receiver Unit
- 2 x X320FM Handheld Wireless Microphones
- 2 x Receiver Antennas
- 1 x Power Adapter
- 1 x Audio Cable (6.3mm to 6.3mm)
- 2 x Anti-Roll Rings (for microphones)
- 1 x User Manual (this document)
4. Setup Guide
4.1 Receiver Connections
- Connect Antennas: Screw the two provided antennas into the 'ANT-A' and 'ANT-B' ports on the rear of the receiver.
- Power Connection: Connect the power adapter to the 'DC9-12V 500mA-1A' power interface on the receiver and plug it into a suitable power outlet.
- Audio Output: Connect the receiver to your audio mixer, amplifier, or sound system using one of the following options:
- Mixed Output: Use the 'MIX OUT' (6.3mm) port for a combined signal from both microphones.
- Balanced Outputs: Use 'BALANCED OUT-A' (XLR) for Microphone A and 'BALANCED OUT-B' (XLR) for Microphone B for individual channel control.
4.2 Microphone Battery Installation
- Unscrew the bottom part of the microphone to reveal the battery compartment.
- Insert two AA batteries, ensuring correct polarity (+/-).
- Screw the bottom part back onto the microphone securely.
4.3 Initial Power On and Frequency Matching
The system features a lightning matching function, connecting automatically upon power-on.
- Power On Receiver: Press the 'POWER' button (X button) on the receiver. The display will light up, showing channel frequencies.
- Power On Microphones: Press the 'POWER' button on each handheld microphone. The microphone display will light up.
- Automatic Matching: The microphones should automatically connect to the receiver. If not, proceed to the frequency adjustment section.
5. Operating Instructions
5.1 Receiver Controls
- Display: Shows channel (CHA/CHB), frequency (MHz), RF (Radio Frequency) signal strength, and AF (Audio Frequency) signal strength.
- X Button (POWER): Short press to turn ON/OFF. Long press for other functions (see below).
- UP/VOL and DW/VOL Buttons: Used for volume adjustment and frequency changes.
5.2 Microphone Controls
- Power Button: Press to turn the microphone ON/OFF.
- Display: Shows current frequency and battery level.
- AFH Switch (inside battery compartment): Allows selection of channels A, B, C, or D for frequency adjustment.
5.3 Basic Operations
Power ON/OFF:
- Receiver: Short press the central 'X' button.
- Microphone: Press the 'POWER' button on the microphone.
Volume Adjustment:
- Double-click the 'X' button on the receiver to enter the volume adjustment menu.
- Use the 'UP/VOL' and 'DW/VOL' buttons on the receiver to adjust the volume for the selected channel.
Frequency Adjustment (Microphone):
- With the microphone powered on, press the 'POWER' button on the microphone to cycle through available frequencies. The receiver's display for that channel will change accordingly.
Frequency Lock/Unlock (Receiver):
- To lock or unlock the frequency, double-click the 'UP/VOL' and 'DW/VOL' buttons on the receiver simultaneously. A key icon will appear/disappear on the display.
Channel Switching (Microphone):
- Inside the microphone's battery compartment, there is an 'AFH' switch. Use this switch to select channels A, B, C, or D. This allows for broader frequency selection if interference is encountered.
5.4 Product Demonstration Video
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the receiver and microphones. Do not use liquid cleaners or solvents.
- Storage: Store the system in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: Remove batteries from the microphones if they will not be used for an extended period to prevent leakage.
- Handle with Care: The microphones feature an all-metal body for durability, but avoid dropping or subjecting them to strong impacts.
7. Troubleshooting
- No Sound Output:
- Ensure the receiver is powered on and connected correctly to your audio system.
- Check that the microphones are powered on and have fresh batteries.
- Verify that the microphone and receiver frequencies are matched.
- Adjust the volume levels on both the receiver and your audio system.
- Interference/Static Noise:
- Change the operating frequency of the microphone and receiver.
- Ensure there are no other wireless devices operating on the same frequency nearby.
- Check the distance between the microphones and the receiver; reduce if too far.
- Ensure antennas are properly connected and positioned.
- Microphone Not Connecting:
- Ensure both the microphone and receiver are powered on.
- Try changing the microphone's channel using the AFH switch inside the battery compartment.
- Perform a frequency matching procedure again.
- Short Operating Range:
- Ensure there are no major obstructions (walls, large metal objects) between the microphones and the receiver.
- Check for strong electromagnetic interference sources in the environment.
- Verify that the antennas are fully extended and positioned for optimal reception.
8. Specifications
8.1 General System Specifications
- Carrier Frequency Band: UHF adjustable (520-580MHz)
- Digital Audio Transmission Technology: Yes
- ID Code: 32-bit (unique digital ID code pilot technology)
- Audio Latency: Ultra-low
- Audio Sampling Mode: 48KHz
- Frequency Response: 50Hz - 18KHz
- Receiving Mode: Automatic scan
- Theoretical Transmission Distance (Open Environment): 80-100 meters
8.2 Handheld Microphone Specifications
- Microphone Type: Dynamic coil
- Pickup Pattern: Cardioid
- Frequency Range: 520-580MHz
- RF Bandwidth: 60MHz
- Number of Frequencies: 2*16
- Transmission Power: 10mW
- Dynamic Range: 96dB
- Harmonic Radiation: <-50dBc
- Distortion: <0.1%
- Power Supply: AA battery
- Material: Metal
8.3 Receiver Specifications
- Frequency Range: 520-580MHz
- RF Bandwidth: 60MHz
- Number of Frequencies: 2*16
- Signal to Noise Ratio: 96dB
- Receiving Sensitivity: -95dBm
- Power Input: DC9-12V 500mA-1A
9. User Tips
- For optimal sound quality, ensure the microphone is held at an appropriate distance from the mouth, typically 2-6 inches.
- When experiencing interference, try changing the frequency using the microphone's power button or the AFH switch.
- Always use fresh, high-quality AA batteries for consistent performance and to avoid unexpected power loss during use.
- The neon halo on the microphone can be a useful visual cue for microphone status in dark environments.
10. Warranty and Support
For detailed warranty information and customer support, please refer to the official G-MARK website or contact your retailer. A comprehensive user manual in PDF format is also available for download:
