1. Introduction
This manual provides comprehensive instructions for the SGPRO Wireless In-Ear Monitor System (Model: 1 Transmitter + 1 Receiver). This system is designed to deliver clear and stable audio monitoring for musicians, performers, and audio professionals in various settings, including bands, studios, and live events. It operates on the UHF band with 85 adjustable frequencies, offering a reliable transmission range of up to 262 feet (100 meters).
Key features include:
- Enhanced antenna diversity for uninterrupted reception and elimination of dead spots.
- UHF band operation for interference-free audio transmission in crowded RF environments.
- Versatile connectivity with three audio inputs, including XLR and 1/4" jacks.
- Scalable design allowing one transmitter to connect to multiple receivers.
- Adjustable power modes for optimized coverage.
2. Product Components
The SGPRO Wireless In-Ear Monitor System (1 Transmitter + 1 Receiver) package includes the following items:
- 1x Corded Electric Transmitter
- 1x Battery Powered Bodypack Receiver
- 1x Pair of Monitor Earphones
- 1x Power Adaptor
- 1x 1/4" Audio Cable
- 1x Rack Mount Kit
- 1x Antenna Extender
- 1x User Guide (this document)
Figure 2.1: Included components of the SGPRO Wireless In-Ear Monitor System.
3. Product Overview
3.1. Transmitter (SG-40)
The transmitter unit is constructed with a durable metal casing and features a clear LCD display for channel and power status. It offers multiple audio input options and controls for signal management.
Figure 3.1: SGPRO Transmitter Front and Rear Panels.
- Function Select: Button to navigate menu options.
- On/Off: Power button for the transmitter.
- Display: LCD screen showing channel, frequency, power mode, and AF level.
- Earphone Volume: Knob to adjust the volume for the local earphone output.
- Mic Volume: Knob to adjust the input volume for the microphone input.
- Mic Input: 1/4" jack for microphone connection.
- Audio Output (MIX.OUT): XLR output for mixed audio.
- Audio Input 1 (LINE IN): XLR/TRS combo jack with independent volume control.
- Audio Input 2 (LINE IN): XLR/TRS combo jack with independent volume control.
- DC Input: 12V power input.
- ANT: Antenna connector.
3.2. Bodypack Receiver (SG-40)
The bodypack receiver is a compact, battery-powered unit designed for portability and features antenna diversity for stable signal reception.
Figure 3.2: SGPRO Bodypack Receiver.
- IR: Infrared sensor for syncing with the transmitter.
- On/Off: Power button for the receiver.
- LCD: Display showing channel, frequency, battery status, and signal strength.
- Volume: Knob to adjust the earphone output volume.
- Earphone Jack: 3.5mm output for connecting monitor earphones.
3.3. Monitor Earphones
The included earphones are designed for comfort and superior sound quality, featuring a Hi-fi dynamic driver and ergonomic design for secure fit during performances.
Figure 3.3: SGPRO Monitor Earphones.
4. Setup Instructions
4.1. Transmitter Setup
- Connect Antenna: Screw the included antenna onto the ANT connector on the rear panel of the transmitter.
- Power Connection: Connect the power adaptor to the DC Input (12V) on the transmitter and plug it into a power outlet.
- Audio Input: Connect your audio source (e.g., mixing console, instrument, microphone) to the LINE IN (XLR/TRS combo) or MIC IN (1/4" jack) inputs on the transmitter. Use Input 1 or Input 2 for line-level signals, and the MIC IN for microphone signals.
- Power On: Press the On/Off button on the transmitter to power it on. The LCD display will illuminate.
4.2. Receiver Setup
- Install Batteries: Open the battery compartment on the bodypack receiver and insert two AA batteries (not included), ensuring correct polarity.
- Connect Earphones: Plug the monitor earphones into the 3.5mm Earphone Jack on the bodypack receiver.
- Power On: Press the On/Off button on the bodypack receiver to power it on. The LCD display will illuminate.
4.3. Pairing Transmitter and Receiver
To establish a wireless connection, the transmitter and receiver must be paired to the same frequency channel:
- Select Channel on Transmitter: On the transmitter, use the UP/DOWN buttons to select a desired channel. The LCD will display the channel number and frequency.
- Initiate IR Sync: On the transmitter, press the SET button to activate the IR sync function. The IR indicator on the transmitter will flash.
- Sync Receiver: Hold the bodypack receiver with its IR sensor facing the IR sensor on the transmitter, typically within a few inches. The receiver's display will show a successful sync message or automatically switch to the selected channel.
- Verify Connection: Once synced, the receiver's LCD should display the same channel and frequency as the transmitter, and the signal strength indicator should show a stable connection.
5. Operating Instructions
5.1. Adjusting Audio Levels
- Transmitter Input Volume: Use the independent volume knobs for LINE IN 1, LINE IN 2, and MIC IN on the transmitter to adjust the input levels from your audio sources. Monitor the AF (Audio Frequency) level on the transmitter's LCD to avoid clipping.
- Receiver Output Volume: Use the VOLUME knob on the bodypack receiver to adjust the listening volume through your earphones.
5.2. Changing Frequencies
If you experience interference, you can change the operating frequency:
- On the transmitter, use the UP/DOWN buttons to select a different channel.
- Perform the IR sync procedure (Section 4.3) again to pair the receiver to the new frequency.
5.3. Transmitter Power Modes
The transmitter offers adjustable power modes (HI/LO) to optimize range and battery life (for the receiver, if applicable, or to reduce RF interference in close proximity).
- HI (High Power): Provides maximum transmission range (up to 262ft).
- LO (Low Power): Reduces transmission range, useful for shorter distances or to minimize interference with other wireless systems.
To change the power mode, use the SET button on the transmitter to navigate to the power setting and then use UP/DOWN to select HI or LO.
5.4. Using Multiple Receivers
One SGPRO transmitter can broadcast to an unlimited number of SGPRO bodypack receivers. Simply sync each additional receiver to the same channel as the transmitter using the IR sync function.
Figure 5.1: One Transmitter to Multiple Receivers.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the surfaces of the transmitter and receiver. Do not use liquid cleaners or solvents.
- Battery Care: Remove batteries from the bodypack receiver if it will not be used for an extended period to prevent leakage.
- Storage: Store the system in a cool, dry place away from direct sunlight and extreme temperatures.
- Antenna Care: Handle antennas carefully to avoid bending or breaking. Ensure they are securely attached during use.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound from earphones | Receiver not powered on; low receiver battery; earphones not connected; volume too low; transmitter not powered on; transmitter and receiver not synced; incorrect audio input on transmitter. | Ensure receiver is on and has fresh batteries. Check earphone connection. Increase receiver volume. Ensure transmitter is on. Re-sync transmitter and receiver (Section 4.3). Verify audio source is connected to correct input on transmitter and input volume is adequate. |
| Interference or static | Operating on a crowded frequency; too far from transmitter; obstacles blocking signal. | Change to a different frequency channel (Section 5.2). Move closer to the transmitter. Ensure clear line of sight between transmitter and receiver antennas. Avoid placing the system near other wireless devices or large metal objects. |
| Short transmission range | Transmitter in LO power mode; environmental interference; antenna obstruction. | Set transmitter to HI power mode (Section 5.3). Re-evaluate antenna placement for optimal line of sight. Change frequency if necessary. |
| Receiver display is dim or off | Low or dead batteries. | Replace batteries in the bodypack receiver. |
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | SGPRO IEM System Single Set |
| Connectivity Technology | Wireless |
| Wireless Communication Technology | UHF |
| Frequency Range | 500-900 MHz (85 Selectable Frequencies) |
| Operating Range | Up to 262 feet (100 meters) |
| Transmitter Material | Metal |
| Bodypack Material | ABS |
| Transmitter Inputs | 3 (XLR/TRS Combo x2, 1/4" Mic In x1) |
| Headphones Jack (Receiver) | 3.5 mm Jack |
| Receiver Battery Life | 6 Hours (with AA batteries) |
| Control Method | Touch (buttons) |
| Noise Control | Active Noise Cancellation |
| Water Resistance Level | Not Water Resistant |
| Item Weight (System) | 3.31 pounds (1500 Grams) |
| Manufacturer | SGPRO |
9. Warranty Information
For detailed warranty information regarding your SGPRO Wireless In-Ear Monitor System, please refer to the warranty card included with your product or visit the official SGPRO website. Warranty terms and conditions may vary by region and product.
10. Customer Support
Should you require technical assistance, have questions about product operation, or need to report an issue, please contact SGPRO customer service through the following channels:
- Website: Visit the official SGPRO website for support resources, FAQs, and contact forms.
- Email: Refer to your product packaging or the SGPRO website for customer support email addresses.
Please have your product model number (1 Transmitter + 1 Receiver) and purchase date ready when contacting support.
