1. Introduction
This manual provides detailed instructions for the Aroma ARC1, ARG-05, and ARU-03 wireless audio transmission systems. These systems are designed to provide high-quality, stable, and convenient wireless audio for microphones, guitars, basses, and other instruments. Please read this manual thoroughly before use to ensure proper operation and to maximize the lifespan of your device.
2. Product Overview
The Aroma wireless audio systems offer freedom from cables with reliable signal transmission. Different models cater to specific needs, from XLR microphone connections to 6.35mm instrument jacks.
2.1. Aroma ARC1 Wireless Microphone System
The ARC1 system features a compact design with XLR connectors for microphones, operating on a 5.8GHz band for clear and stable audio.
2.2. Aroma ARG-05 Wireless Guitar System
The ARG-05 is designed for guitars and basses, featuring 6.35mm audio output jacks and a 120° rotatable plug for versatile connection.
2.3. Aroma ARU-03 Wireless Instrument System
The ARU-03 offers wireless audio transmission for instruments with 6.35mm audio output, featuring UHF frequency and FM high fidelity coding technology.
2.4. Aroma ARU-02 Wireless Instrument System
The ARU-02 is another wireless system for guitars and basses, utilizing UHF frequency for high-fidelity audio transmission.
2.5. Product Video
3. Specifications
3.1. Aroma ARC1 Specifications
| Feature | Specification |
|---|---|
| Operating Band | 5.8Ghz |
| Sample Rate | 24bit/48KHz |
| Latency | < 5.6ms |
| SNT (Signal-to-Noise Ratio) | 140dB |
| Channels | 4 |
| Range | 20-35 meters |
| Power Supply | Built-in Lithium Battery |
| Working Time | 4 hours |
| Charging Time | Below 2 hours |
3.2. Aroma ARG-05 Specifications
| Feature | Specification |
|---|---|
| Sample Range | 24bit/ 48KHz |
| Latency | Less than 6ms |
| Transmission Range | Max. 35 meters (no obstacles) |
| Signal Noise Ratio | 140dB |
| Power Supply | Built-in Rechargeable Lithium Battery (3.7V 450mAh) |
| Charging Port | 5V Micro USB port |
| Item Size (folded) | Approx. 8.3 * 3.5 * 2.8cm |
| Item Weight (each) | 35g |
3.3. Aroma ARU-03 Specifications
| Feature | Specification |
|---|---|
| System Frequency Response | 40Hz-18kHz |
| Channels | 5 UHF Channels |
| Frequencies | 863.7MHz, 866.7MHz, 869.7MHz, 872.7MHz, 876.7MHz |
| Transmission Range | Max. 20 meters (no obstacle) |
| Transmission Delay | Less Than 5ms |
| Signal Noise Ratio | <-85dB |
| Power Supply | Built-in 3.7V 380mAh rechargeable lithium battery |
| Charge Port | Micro USB |
| Item Size | 12 * 2.5 * 2cm |
| Item Weight (each) | 47g |
3.4. Aroma ARU-02 Specifications
| Feature | Specification |
|---|---|
| Audio Interface | 6.35mm mono audio plug |
| Channels | 2 UHF Channels (A/B) |
| Frequencies | 731.7MHz / 717.3 MHz |
| System Frequency Response | 40Hz~18KHz+-3dB |
| Signal Noise Ratio | <-85dB |
| Delay | <5mS |
| Distortion | <0.5% |
| Max. Transmission Distance | >20m (no obstacle) |
| Transmitter Power | Rechargeable 3.7V/1000mAH Li-battery |
| Transmitter Output Power | >10dBm |
| Max. Input Signal Amplitude | 500mV |
| Transmitter Work Hour | 8 Hours (full recharged) |
| Transmitter Charging Time | <3 hours |
| Transmitter Size | 135*91*32mm |
| Receiver Power Supply | 4 * AA Batteries (not included) or 5V USB Cable |
| Receiver Sensitivity | <-110dBm |
| Receiver Signal Noise Ratio | <-85dB |
| Audio Cable Length | 90cm |
| Receiver Size | 87*26*24mm |
4. Setup Instructions
4.1. Charging the Device
- Connect the provided USB charging cable to the Micro USB port on the Transmitter and Receiver units.
- Plug the other end of the USB cable into a 5V USB power adapter (not included) or a computer's USB port.
- The indicator light will show charging status (e.g., red for charging, off or blue for fully charged). Refer to specific model instructions for exact indicator behavior.
- Charging time is typically 2-3 hours for a full charge.
4.2. Connecting and Pairing (ARC1)
- Plug the ARC1 Transmitter into your microphone's XLR output.
- Plug the ARC1 Receiver into the XLR input of your mixer, amplifier, or audio interface.
- Power on both the Transmitter and Receiver. They should automatically pair.
- If pairing does not occur automatically, check the channel selection buttons on both units to ensure they are set to the same channel. The ARC1 has 4 selectable channels.
4.3. Connecting and Pairing (ARG-05, ARU-03, ARU-02)
- Plug the Transmitter unit (ARG-05, ARU-03, or ARU-02) into your instrument's 6.35mm audio output jack. For ARG-05, you can rotate the plug up to 120° for optimal fit.
- Plug the Receiver unit into the 6.35mm input of your amplifier, pedal, or audio interface.
- Power on both the Transmitter and Receiver. They are designed to match automatically.
- For ARU-03, the 5 UHF channels are indicated by different color LED lights (red, green, blue, yellow, purple). Ensure both units are on the same channel. For ARU-02, use the Channel A/B switch to select the desired channel.
5. Operating Instructions
5.1. Power On/Off
- To power on, press and hold the power button on both the Transmitter and Receiver until the indicator light illuminates.
- To power off, press and hold the power button again until the indicator light turns off.
5.2. Channel Selection
- ARC1: Use the channel selection buttons on both the Transmitter and Receiver to cycle through the 4 available channels. Ensure both units are set to the same channel for proper operation.
- ARG-05: The system typically auto-pairs. If interference occurs, try moving to a different location or ensuring no other 5.8GHz devices are nearby.
- ARU-03: The 5 UHF channels are indicated by different color LED lights. Press the channel button to change the channel. Match the color on both the Transmitter and Receiver.
- ARU-02: Use the A/B switch on both the Transmitter and Receiver to select between the two available UHF channels.
5.3. Usage Environment
- Maintain a clear line of sight between the transmitter and receiver for optimal performance.
- Avoid placing the units near strong electromagnetic interference sources (e.g., Wi-Fi routers, microwave ovens).
- The effective transmission range is up to 20-35 meters depending on the model and environmental conditions. Walls and other obstacles can reduce this range.
6. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the units. Do not use liquid cleaners or solvents.
- Battery Care: For models with built-in rechargeable batteries, fully charge the units before first use. If storing for an extended period, charge the batteries every 3 months to maintain battery health. Avoid overcharging or completely draining the battery frequently.
- Storage: Store the devices in a cool, dry place away from direct sunlight, extreme temperatures, and high humidity. When not in use, it is recommended to store them in their original packaging or a protective case.
- Handling: Avoid dropping or subjecting the units to strong impacts, as this can damage internal components.
7. Troubleshooting
- No Sound/Intermittent Signal:
- Ensure both the Transmitter and Receiver are powered on and fully charged.
- Verify that the Transmitter and Receiver are set to the same channel.
- Check all cable connections (microphone to transmitter, receiver to mixer/amp).
- Move the units closer together or away from potential sources of interference (e.g., Wi-Fi routers, other wireless devices).
- Ensure the instrument or microphone is working correctly when connected directly via cable.
- Poor Audio Quality/Hissing Noise:
- Check for strong electromagnetic interference in the environment.
- Ensure the units are within the specified transmission range.
- Adjust the input/output levels on your microphone, instrument, or mixer to avoid clipping or low signal.
- Try a different channel if available, as some channels might have more interference.
- Device Not Charging:
- Ensure the USB cable is securely connected to both the device and the power source.
- Try a different USB cable or power adapter.
- Check if the charging port on the device is clean and free of debris.
8. User Tips
- Minimize Interference: While these systems are designed for stable transmission, using them away from other strong wireless signals (like crowded Wi-Fi networks) can further improve performance and reduce potential hissing.
- Optimal Placement: For the best range and signal quality, try to keep the transmitter and receiver in a direct line of sight, avoiding large metal objects or walls between them.
- Battery Management: For models with built-in batteries, a full charge before each important use (like a performance) is recommended to ensure you get the maximum working time.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please contact the seller or manufacturer directly. Keep your proof of purchase for any warranty claims.
