1. Introduction
This manual provides detailed instructions for the setup, operation, and maintenance of your BluDento BLT-2 Hi-Fi Bluetooth 5.1 Audio Receiver. Please read this manual thoroughly before using the device to ensure proper functionality and to maximize your audio experience.
2. Product Overview
The BluDento BLT-2 is a high-fidelity Bluetooth audio receiver designed to integrate wireless audio streaming into your existing home stereo system. It features Bluetooth 5.1 technology, supports aptX HD, aptX Low Latency, AAC, and SBC codecs, and incorporates a Texas Instruments PCM5102A DAC for superior sound quality. The device offers multiple output options including RCA, Optical, and Coaxial, allowing versatile connectivity with various audio equipment.
Image 2.1: The BluDento BLT-2 Hi-Fi Bluetooth 5.1 Audio Receiver with its external antenna.
3. Package Contents
Verify that all items are present in the package:
- BluDento BLT-2 Bluetooth Audio Receiver
- Optical audio cable
- RCA audio cable
- RCA to 3.5mm adapter (female to male)
- Micro USB power cable
- User Manual
Note: A USB power adapter is not included and must be supplied by the user. Use a 5V power supply.
Image 3.1: Included accessories: optical cable, RCA cable, 3.5mm adapter, micro USB cable, and user manual. USB power adapter is not included.
4. Setup
Follow these steps to set up your BluDento BLT-2 receiver:
- Connect Power: Connect the micro USB power cable to the PWR port on the BLT-2 and plug the other end into a 5V USB power adapter (not included). The device will automatically power on.
- Connect to Audio System: Choose one of the following output methods to connect the BLT-2 to your amplifier, receiver, or powered speakers:
- RCA Output: Use the supplied RCA cable to connect the red and white RCA ports on the BLT-2 to the corresponding analog audio input ports on your audio system.
- Optical Output (TOSLINK): Use the supplied optical cable to connect the OPT port on the BLT-2 to the optical digital input on your audio system.
- Coaxial Output: Use a coaxial digital audio cable (not supplied) to connect the COAX port on the BLT-2 to the coaxial digital input on your audio system.
All outputs (RCA, Optical, Coaxial) can work simultaneously.
- Position Antenna: The external antenna provides a strong and stable Bluetooth range. Rotate the antenna to the left, right, or up for optimal signal reception. Do not rotate it downwards, as this may cause damage.
Image 4.1: Rear panel connections including USB Power In, Optical Out, Coaxial Out, and RCA Out.
Image 4.2: The BLT-2 can connect to Hi-Fi systems, AV receivers, and active speakers.
5. Operating Instructions
5.1. Pairing with a Bluetooth Device
The BluDento BLT-2 automatically enters pairing mode when powered on. The indicator light will flash blue.
- Ensure your BLT-2 is powered on. The 'PAIR' indicator light will flash blue.
- On your audio source device (e.g., smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "BLT-2" from the list of found devices to connect.
- Once connected, the indicator light on the BLT-2 will turn solid blue. You can now stream audio from your device to your stereo system.
5.2. Automatic Reconnection
The BLT-2 supports automatic reconnection to the last paired device. To ensure successful auto-reconnection:
- Turn on your phone's Bluetooth first.
- Then, power on the BluDento BLT-2. It will automatically attempt to reconnect to the last device.
5.3. Connecting Multiple Devices
The BLT-2 can remember multiple paired devices, though it can only play audio from one at a time. To switch between devices, disconnect the currently playing device and connect with another previously paired device.
Image 5.1: The BLT-2 can be linked to multiple Bluetooth devices, but only one can be actively streaming at a time.
5.4. Supported Bluetooth Codecs
The BLT-2 supports various Bluetooth audio codecs to ensure high-quality streaming:
- aptX HD: For high-resolution audio streaming (up to 576kbps).
- aptX LL (Low Latency): Reduces audio delay, ideal for video synchronization (up to 352kbps).
- AAC: Advanced Audio Coding, commonly used by Apple devices (up to 250kbps).
- SBC: Standard Bluetooth codec (up to 328kbps).
Note: iPhone devices primarily support AAC. For aptX HD, your Android device must support it, and you may need to enable it in Developer Options.
Image 5.2: Visual representation of supported Bluetooth codecs and their maximum bitrates.
6. Specifications
| Feature | Description |
|---|---|
| Brand | BluDento |
| Model Number | BLT-2 |
| Connectivity Technology | Bluetooth 5.1, Coaxial, RCA, USB (for power) |
| Audio Output Type | RCA (Analog), Optical (Digital), Coaxial (Digital) |
| Audio Encoding | Analog |
| Audio Output Mode | Stereo (2-channel) |
| DAC | Texas Instruments PCM5102A (32-bit, 384kHz interface) |
| Supported Bluetooth Codecs | aptX HD, aptX LL, AAC, SBC |
| Compatible Devices | iPhone, iPad, PC, Android, Tablet, iMac, MacBook Pro, MacBook Air, etc. |
| Item Dimensions (D x W x H) | 3.94" x 3.35" x 1.18" (10cm x 8.5cm x 3cm) |
| Item Weight | 0.15 Kilograms |
| Color | Blue |
Image 6.1: The BLT-2 features a built-in Texas Instruments PCM5102A Digital-to-Analog Converter (DAC).
7. Troubleshooting
- No Sound or Sound Problems with Optical/Coaxial Output:
- Ensure your connected home theater system, audio receiver, or soundbar is correctly configured to decode the digital signal.
- If your audio system does not support a 48kHz sample rate, try switching the Bluetooth source device's sample rate to 44.1kHz.
- Verify that the optical or coaxial cable is securely connected at both ends.
- Check if the optical or coaxial cable is faulty by testing with another cable if possible.
- Connecting to Amazon Echo Dot:
- Connect the BluDento BLT-2 to your stereo system using an audio cable (RCA, optical, or coaxial), not directly to the Echo Dot.
- Open the Alexa app on your smartphone or tablet.
- Navigate to Settings > Devices/Echo > Bluetooth.
- Select Pair a New Device and choose "BLT-2" from the list.
- Audible Sound on Connection/Disconnection:
- The BLT-2 does not produce an audible sound when connecting or disconnecting from a device. Connection status is indicated by the LED light.
- Antenna Rotation:
- The antenna can be rotated to the left, right, and up. Do not rotate it downwards, as this can cause damage to the unit.
- Power Supply:
- Always use a 5V power supply for the BLT-2. Using a mismatched power supply (e.g., 9V or 12V) may cause the unit to malfunction or be damaged.
- Using a proper power adapter helps eliminate ground loop noise.
Video 7.1: An overview of the BluDento BLT-2, demonstrating its features and connectivity options.
8. Maintenance
To ensure the longevity and optimal performance of your BluDento BLT-2:
- Keep the device in a dry environment, away from moisture and extreme temperatures.
- Clean the device with a soft, dry cloth. Avoid using harsh chemicals or abrasive cleaners.
- Do not attempt to disassemble or repair the unit yourself. Refer to qualified service personnel for any repairs.
9. Warranty and Support
The BluDento BLT-2 comes with a 1-year warranty from the date of original purchase, covering manufacturing defects. For technical support or warranty claims, please contact BluDento customer service through their official channels.