1. Introduction
The ACEMIC AT-5 is a professional wireless microphone system designed for precise sound capture of musical instruments such as accordions, acoustic guitars, and other stringed instruments. Featuring digital wireless audio transmission and a compact design, it offers freedom of movement and stable performance for various applications, including stage performances, street performances, and teaching.
2. Product Overview
2.1 Components
- AT-5 Transmitter: A compact condenser microphone with a flexible gooseneck and integrated wireless transmitter.
- RE-10 Receiver: A portable plug-on receiver with a 6.35mm plug for direct connection to mixers or active speakers.
- Storage Box: For safe transport and storage of the system.
- Mushroom Hook and Loop Fasteners: For attaching the transmitter securely to instruments.
2.2 Key Features
- UHF 600-952MHz frequency range (region dependent).
- Digital wireless audio transmission for clear sound.
- 48KHz audio sampling mode.
- Pre-set 16 selectable frequencies to avoid interference.
- Digital ID code for interference-free operation.
- IR sync function for easy frequency pairing between transmitter and receiver.
- Built-in 3.7V Lithium battery in both units, offering over 6 hours of continuous use after a 2-hour charge.
- Portable plug-on receiver (RE-10) with 6.35mm output.
- Operating range of up to 40-50 meters line-of-sight.
- Cardioid directivity condenser microphone (AT-5) for accurate sound capture and reduced environmental noise.
- Mushroom hook and loop fasteners for secure instrument attachment.
3. Setup Instructions
3.1 Charging the Units
Both the AT-5 transmitter and RE-10 receiver are powered by built-in 3.7V Lithium batteries. Before first use, ensure both units are fully charged.
- Connect the charging cable (not explicitly mentioned but implied) to the charging port on each unit.
- Connect the other end of the charging cable to a suitable USB power source.
- Charge for approximately 2 hours for a full charge. A full charge provides over 6 hours (360 minutes) of continuous use.
3.2 Attaching the Transmitter
The AT-5 transmitter comes with mushroom hook and loop fasteners for secure attachment to your instrument.
- Identify a suitable, stable surface on your instrument where the transmitter can be attached without obstructing play or sound.
- Peel off the protective backing from one side of the mushroom hook and loop fastener.
- Firmly press the adhesive side onto the chosen spot on your instrument.
- Attach the corresponding fastener to the back of the AT-5 transmitter.
- Press the transmitter firmly onto the fastener on your instrument.
3.3 Connecting the Receiver
- Plug the 6.35mm output jack of the RE-10 receiver directly into the microphone input of your mixer, amplifier, or active speaker.
- Ensure the input volume on your audio device is initially set to a low level.
3.4 Powering On and IR Sync
- Press and hold the Power Button on both the AT-5 transmitter and RE-10 receiver to turn them on.
- The receiver's LED display will show the current channel.
- To synchronize frequencies, ensure both units are powered on and within close proximity. Press the IR Sync Button on the receiver. The receiver will transmit the frequency to the transmitter.
- The IR indicator on both units will flash during synchronization and remain steady once paired.
- If needed, use the Frequency Plus (+) and Frequency Minus (-) buttons on the receiver to select a different channel (from the 16 pre-set channels) to avoid interference, then re-sync.
4. Operating Instructions
4.1 Microphone Placement
Position the AT-5 condenser microphone head close to the sound source of your instrument. The flexible gooseneck allows for precise adjustment. Due to its cardioid directivity, the microphone is most sensitive to sounds coming from the front, helping to reduce environmental noise.
4.2 Adjusting Volume
Adjust the input volume on your connected mixer or amplifier to achieve the desired sound level. Start with a low volume and gradually increase it to prevent feedback or distortion.
4.3 Operating Range
The system offers a stable transmission distance of approximately 40-50 meters line-of-sight. For optimal performance, maintain a clear line of sight between the transmitter and receiver and avoid obstacles that may interfere with the signal.
4.4 Power Off
When finished using the microphone, press and hold the Power Button on both the transmitter and receiver until they power off.
5. Maintenance
5.1 Battery Care
- The built-in lithium batteries can be recharged approximately 2000 times.
- Avoid completely draining the battery frequently to prolong its lifespan.
- If storing the unit for an extended period, charge the battery to about 50% and recharge every few months.
5.2 Cleaning
- Wipe the units with a soft, dry cloth.
- Do not use abrasive cleaners or solvents.
- Keep the microphone head clean and free from dust or debris.
5.3 Storage
- Store the microphone system in its provided storage box when not in use.
- Keep the units in a cool, dry place, away from direct sunlight and extreme temperatures.
6. Troubleshooting
- No Sound:
- Ensure both transmitter and receiver are powered on and fully charged.
- Verify that the receiver is correctly plugged into the audio input of your mixer/amplifier.
- Check that the transmitter and receiver are synchronized (IR indicator steady). If not, re-sync.
- Confirm the input volume on your audio device is turned up.
- Poor Sound Quality / Interference:
- The system uses a digital ID code to minimize interference. If interference occurs, try changing the frequency channel on the receiver and re-syncing.
- Ensure there are no major obstacles between the transmitter and receiver.
- Move away from other wireless devices or strong electromagnetic fields.
- Check microphone placement; ensure it's not too far from the sound source or picking up excessive ambient noise.
- Short Operating Range:
- Ensure a clear line of sight between the transmitter and receiver.
- Avoid operating in environments with many reflective surfaces or dense materials that can block wireless signals.
- Check battery levels; low battery can affect range.
7. Specifications
| Feature | RE-10 Receiver | AT-5 Transmitter |
|---|---|---|
| Frequency Range | 660-690MHz (region dependent) | 660-690MHz (region dependent) |
| Selectable Channels | Pre-set 16 channels | Pre-set 16 channels |
| Modulation Mode | π/4 DQPSK | π/4 DQPSK |
| Latency | <6ms | N/A |
| Sampling | 48KHz | N/A |
| Frequency Response | 60Hz - 15KHz ± 2dB | N/A |
| Total Harmonic Distortion | <0.8% (1KHz) | N/A |
| Signal/Noise Ratio | >92dB | N/A |
| Receiving Sensitivity | -92dBm | N/A |
| Output | 6.35mm plug | N/A |
| Transmitter Power | N/A | 10mW |
| Microphone Sensitivity | N/A | -47dB ± 2dB |
| Frequency Change | IR Sync | IR Sync |
| Microphone Type | N/A | Condenser |
| Microphone Dimension | N/A | Φ14*5.0mm |
| Power Supply | 3.7V Lithium battery | 3.7V Lithium battery |
| Power Consumption | >6 hours continuously using | >6 hours continuously using |
| Dimensions | 185*20*10mm | 125*40*20mm |
8. User Tips
- Optimal Placement: Experiment with microphone placement on your instrument to find the sweet spot that captures the best tone and minimizes unwanted noise.
- Pre-Performance Check: Always perform a quick sound check before any performance to ensure both units are charged, synchronized, and producing clear audio.
- Battery Management: For longer events, consider having a portable power bank to recharge the units during breaks, or ensure they are fully charged before extended use.
- Interference Avoidance: If you experience occasional signal drops or interference, try to slightly reposition the receiver or change the frequency channel.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided at the time of purchase or contact your retailer. Keep your proof of purchase for any warranty claims.