1. Product Overview
The G-MARK G2000 is a professional wireless in-ear monitor (IEM) system designed for stage performances, studio recordings, and various live events. It features UHF frequency transmission, advanced digital signal processing, and a robust metal construction for reliable performance.
Key Features:
- Enhanced RF performance with an operating distance of 160-220 feet.
- Antenna diversity bodypack receiver for stable signal reception.
- Expandable system: Unlimited bodypack receivers can be added.
- 30 channels on air, with a total of 100 selectable channels.
- UHF Band: 500-590MHz for clear, uncompressed wireless signal transmission.
- Wide frequency response (20Hz-25KHz) and high dynamic range (107 dB).
- Low noise and latency for high-fidelity audio monitoring.
- FlashMatch technology for quick and easy frequency synchronization.
Package Contents:
The G-MARK G2000 IEM system includes the main receiver, bodypack receiver(s), headphones, power adapter, and audio cables.
- Main Receiver Unit x 1
- Bodypack Receiver(s)
- Antenna x 1
- Power Supply x 1
- G-MARK Headset (in-ear headphones) x 1
- 6.5mm Audio Cable x 2
- User Instruction Manual x 1
2. Component Identification
Main Receiver Unit:
Detailed diagram showing the front and rear panels of the main receiver and the bodypack receiver.
- Front Panel:
- 6.35mm Headphone Output
- Headphone Volume Potentiometer
- LCD Display
- Function Setting Keys
- Power Button
- Rear Panel:
- Power Input (DC IN 12V-18V)
- AF IN (R) (XLR Input for Right Channel)
- AF IN (L) (XLR Input for Left Channel)
- Right Channel Volume Adjustment
- Left Channel Volume Adjustment
- Antenna (TNC socket)
Bodypack Receiver:
- Switch and Volume Keys (ON/OFF, volume knob)
- Headphone Jack
- LCD Display
- Function Setting Keys (Channel adjustment buttons)
- Battery Compartment
- Return Clip Design (for easy wearing)
3. Setup Instructions
3.1 Main Receiver Setup:
- Connect Power: Connect the provided power supply to the 'DC IN (12V-18V)' port on the rear panel of the main receiver.
- Connect Antenna: Screw the antenna securely into the 'ANTENNA' TNC socket on the rear panel.
- Audio Input: Connect your audio source (e.g., mixing console, effectors) to the 'AF IN (R)' and 'AF IN (L)' XLR or 6.5mm universal sockets on the rear panel. Adjust the 'AF LEVEL' knobs (Right/Left) as needed.
- Power On: Press the 'POWER' button on the front panel to turn on the main receiver. The LCD display will illuminate.
- External Monitoring (Optional): If using wired headphones for direct monitoring from the main unit, plug them into the 6.35mm Headphone Output on the front panel and adjust the Headphone Volume Potentiometer.
Connect the main receiver to a mixing console's headphone jack for audio input.
Connect external headphones to the main receiver for direct monitoring, with adjustable volume.
3.2 Bodypack Receiver Setup:
- Insert Batteries: Open the battery compartment on the bodypack receiver and insert two AA batteries (not included).
- Connect Headphones: Plug your in-ear headphones into the Headphone Jack on the bodypack receiver.
- Power On: Turn the 'ON/OFF' volume knob clockwise to power on the bodypack receiver.
4. Operating Instructions
4.1 Frequency Adjustment (FlashMatch Technology):
The G-MARK G2000 utilizes FlashMatch technology for quick and automatic synchronization of frequencies between the main receiver and bodypack receivers.
- On the main receiver, press the 'SELECT' button to enter the frequency adjustment state.
- Use the 'SELECT' button to cycle through channels (e.g., CH01). The frequency will appear on the LCD display after one second.
- On the bodypack receiver, open the battery cover to reveal the channel adjustment buttons.
- Press the 'up' or 'down' channel adjustment button on the bodypack to select the desired channel (e.g., CH01) to match the main receiver. The system will automatically link successfully.
- Note: When CH02 or other channels are selected on the bodypack, the frequency will change automatically to match the main receiver's selected channel.
The FlashMatch feature allows for quick frequency synchronization between the main receiver and bodypack.
Product demonstration video showing the setup, connections, and FlashMatch frequency synchronization process.
4.2 Volume Control:
- Main Receiver: Adjust the 'AF LEVEL' knobs (Right/Left) on the rear panel to control the input audio level. The Headphone Volume Potentiometer on the front panel controls the volume for directly connected headphones.
- Bodypack Receiver: Use the 'ON/OFF' volume knob on the bodypack to adjust the listening volume of your in-ear headphones.
4.3 Multiple Bodypack Receivers:
The G-MARK G2000 system supports an unlimited number of bodypack receivers connected to a single main receiver. Ensure each bodypack is synchronized to the same channel as the main receiver using the FlashMatch technology.
The 'Uncapped Matching' feature allows one main receiver to connect with multiple bodypack receivers.
The wireless belt pendant design of the bodypack receiver ensures easy and comfortable wear for performers.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the surfaces of the main receiver and bodypack receivers. Avoid using liquid cleaners or solvents.
- Battery Replacement: Replace bodypack batteries promptly when the low battery indicator appears on the LCD. Use high-quality AA batteries for optimal performance.
- Storage: When not in use for extended periods, store the system in a cool, dry place, away from direct sunlight and extreme temperatures. Remove batteries from bodypack receivers before storage.
- Antenna Care: Ensure the antenna is not bent or damaged. Handle with care during setup and teardown.
6. Troubleshooting
- No Sound:
- Check all cable connections (power, audio input, headphones).
- Ensure both the main receiver and bodypack receiver are powered on.
- Verify that the main receiver and bodypack receiver are synchronized to the same channel.
- Check volume levels on both the main receiver and bodypack.
- Ensure bodypack batteries are not depleted.
- Interference/Poor Signal:
- Try changing to a different frequency channel on both the main receiver and bodypack.
- Ensure the antenna on the main receiver is properly connected and positioned.
- Reduce the distance between the main receiver and bodypack.
- Avoid placing the system near other wireless devices or sources of electromagnetic interference.
- Bodypack Not Synchronizing:
- Ensure the main receiver is in frequency adjustment mode.
- Confirm the bodypack batteries are fresh.
- Follow the FlashMatch steps carefully, ensuring the bodypack is close to the main receiver during synchronization.
7. Specifications
Receiver Technical Parameters:
| Parameter | Value |
|---|---|
| Oscillation Method | PLL Phase Locked Frequency Synthesis |
| Frequency Range | 500-599MHz |
| Preset Channels | 100 groups of channels |
| FM Method | Adjustable |
| Frequency Response | 80Hz-15KHz ±3dB |
| Output Power | 2*35W |
| Headphone Load Impedance | >16Ω |
| Output Socket | 3.5mm Stereo Headphone Socket |
| RX Sensitivity | <-94dBm |
| Modulation System | m / 4-DQPSK |
| Sampling Rate | 48KHz |
| Transmission Speed | 204.8Kbps |
| Dynamic Range | >90dB |
| Total Harmonic Distortion | <0.1% |
| Delay Time Of Audio Transmission | <3ms |
| S/N Ratio | >96dB |
Transmitter Technical Parameters:
| Parameter | Value |
|---|---|
| Chassis Height | 1 U |
| Material | Metal |
| Frequency Range | 500-599MHz |
| Frequency Interval | 25MHz |
| Number of Channels | 100 groups of frequencies can be selected |
| Transmit Output Power | 100mW |
| Audio Input | XLR or 6.5mm Universal Socket |
| Headphone Output | 6.5mm, Volume Adjustable |
| Current Consumption | DC12V/250mA |
| Antenna Input Socket | TNC Socket |
8. User Tips
- Optimal Placement: Position the main receiver's antenna in a clear line of sight to the bodypack receivers to maximize signal strength and range.
- Battery Life: Always carry spare batteries for your bodypack receivers, especially during long performances or events.
- Channel Selection: In environments with many wireless devices, scan for clear channels to avoid interference. The 100 available channels provide flexibility.
- Headphone Comfort: Ensure your in-ear headphones fit snugly to provide optimal sound isolation and bass response.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the contact information provided by your retailer or the official G-MARK website. Keep your proof of purchase for warranty claims.
