ACEMIC PR-8/BT-10T Wireless Double Bass Acoustic Bass Microphone User Manual

1. Introduction

Thank you for choosing the ACEMIC PR-8/BT-10T Wireless Double Bass Acoustic Bass Microphone system. This system is designed for high-quality wireless audio transmission for double bass instruments, offering reliability and clear sound reproduction. It features UHF 740-770MHz frequency range (region dependent), PLL synthesized technology with 100 selectable frequencies, and antenna diversity for maximum range up to 80 meters. The patented design includes a rubber cover to protect the instrument, and an LCD display provides essential information such as RF level, AF level, channel, and frequency.

Package Contents

Please verify that all items listed below are included in your package:

• 1 x PR-8 Receiver
• 1 x BT-10T Transmitter with Microphone
• 1 x Audio Cable
• 1 x Power Adapter (for receiver)
• 1 x User Manual

Image 1.1: Contents of the ACEMIC PR-8/BT-10T Wireless Microphone System package, including the receiver, transmitter, microphone, cables, power adapter, and user manual.

2. Safety Information

• Do not expose the unit to rain or moisture to avoid fire or electric shock.
• Do not open the casing. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
• Use only the specified power adapter for the receiver.
• Ensure proper battery insertion in the transmitter (1x 1.5V AA battery, not included).
• Keep the system away from strong electromagnetic fields.
• Avoid dropping or subjecting the units to severe impact.

3. Product Overview

PR-8 UHF Diversity Wireless Receiver

The receiver unit processes the wireless signal from the transmitter and outputs it as an audio signal. It features an LCD display, control buttons, and antenna inputs for diversity reception.

Image 3.1: Front view of the ACEMIC PR-8 UHF Diversity Wireless Receiver, showing the display and control knobs.

Image 3.2: Angled view of the ACEMIC PR-8 Receiver, highlighting the antennas and side panel.

BT-10T Transmitter with Microphone

The BT-10T transmitter is designed to clip onto the double bass, housing the condenser microphone and transmitting the audio wirelessly to the receiver. It includes a power switch and mute function.

Image 3.3: The ACEMIC BT-10T Wireless Transmitter, showing the power and mute controls.

Image 3.4: The BT-10T Transmitter with the condenser microphone attached, ready for instrument mounting.

4. Setup Instructions

4.1 Receiver Setup

1. Connect Antennas: Screw the two antennas onto the corresponding connectors on the rear of the PR-8 receiver. Position them vertically for optimal reception.
2. Power Connection: Connect the provided power adapter to the DC9V input on the receiver and plug it into a power outlet.
3. Audio Output: Connect the 6.35mm audio cable from the receiver's audio output jack to your mixer, amplifier, or PA system input.
4. Power On: Press the power button on the receiver. The LCD display should illuminate.

4.2 Transmitter and Microphone Setup

1. Insert Battery: Open the battery compartment on the BT-10T transmitter and insert one 1.5V AA battery, observing correct polarity. Close the compartment securely.
2. Attach Microphone: Ensure the condenser microphone is securely connected to the transmitter unit.
3. Mount on Instrument: Carefully attach the transmitter and microphone assembly to your double bass. The patented design with a rubber cover helps protect the instrument. Position the microphone for optimal sound capture, typically near the bridge or f-hole, depending on desired tone.

Image 4.1: Illustration of the BT-10T transmitter and microphone assembly, showing how it connects and attaches to the instrument.

4.3 Frequency Synchronization (IR Sync)

The system uses IR synchronization to match the transmitter and receiver frequencies.

1. Select Channel: On the PR-8 receiver, use the control buttons to select your desired channel/frequency. The LCD will display the chosen frequency.
2. Activate IR Sync: Position the IR window of the BT-10T transmitter close to the IR sensor on the PR-8 receiver (usually marked 'IR').
3. Initiate Sync: Follow the receiver's instructions (e.g., press a 'Sync' button) to initiate the IR synchronization. The transmitter's frequency will automatically be downloaded from the receiver.
4. Verify Connection: Once synchronized, the receiver's display should show a stable RF signal, and the transmitter's indicator should confirm connection.

5. Operating Instructions

5.1 Powering On/Off

• Receiver: Press the power button on the front panel.
• Transmitter: Slide the 'POWER' switch on the BT-10T transmitter to the 'ON' position.

5.2 Adjusting Levels

• AF Level (Audio Frequency): Use the volume control knob on the PR-8 receiver to adjust the audio output level. Start with a moderate level and adjust as needed on your mixer/amplifier.
• RF Level (Radio Frequency): The RF level indicator on the receiver's LCD shows the strength of the wireless signal. Ensure a strong, stable RF signal for optimal performance. If the signal is weak, try repositioning the receiver antennas or reducing the distance between the transmitter and receiver.

5.3 Mute Function

The BT-10T transmitter features a 'MUTE' switch. Slide this switch to temporarily silence the microphone output without powering off the unit. This is useful for breaks or when you need to speak without amplification.

5.4 Battery Life

The transmitter's battery life is approximately 10 hours, depending on the battery type and usage. Monitor the battery indicator on the transmitter or receiver (if available) and replace the AA battery when low to avoid interruptions during performance.

6. Maintenance

6.1 Cleaning

• Wipe the units with a soft, dry cloth.
• Do not use abrasive cleaners, solvents, or chemical sprays, as these can damage the finish or internal components.
• Keep the microphone head clean and free from dust or debris.

6.2 Storage

• When not in use for extended periods, remove the battery from the BT-10T transmitter to prevent leakage.
• Store the system in a cool, dry place, away from direct sunlight and extreme temperatures.
• Use the original packaging or a suitable carrying case to protect the components during transport and storage.

7. Troubleshooting

8. Specifications

Comprehensive Performance

• Modulation Mode: FM
• Dynamic Range: >100dB
• Frequency Response: 60Hz-17KHz±3dB
• Total Harmonic Distortion: <0.5% at 1KHz
• Signal/Noise Ratio: ≥108dB

Receiver (PR-8)

• Receive Sensitivity: -110dBm (sinad ≥30dB)
• Signal/Noise Ratio: >105dB
• Power Supply: DC9V/ 500mA
• Audio Output: 1x 6.35mm jack socket
• Number of Channels: 100

Transmitter (BT-10T)

• RF Power: 10mW
• Microphone Type: Condenser
• Directivity: Cardioid
• Deviation: ±48KHz
• Antenna: 1/4 wave Length wire type
• Battery Voltage: 1.5V (1x 1.5V AA Battery)
• Power Consumption: Approx. 10 hours (battery-dependent)

General

• Frequency Range: UHF 740-770MHz (region dependent)
• Maximum Range: Up to 80 meters (line of sight)
• Item Weight: 2.87 pounds (total package)
• Package Dimensions: 12.2 x 9.06 x 3.54 inches

9. Warranty and Support

Warranty Information

This product is covered by a standard manufacturer's warranty against defects in materials and workmanship. The warranty period typically begins from the date of purchase. Please retain your proof of purchase for warranty claims. The warranty does not cover damage caused by misuse, accident, unauthorized modification, or normal wear and tear.

Customer Support

For technical assistance, troubleshooting, or warranty inquiries, please contact your retailer or the manufacturer's customer support. Refer to the contact information provided with your purchase documentation or visit the official ACEMIC website for support resources.