The XH-M422 TPA3116D2 Bluetooth Amplifiers Board is a versatile and powerful audio amplifier module. Below are the detailed specifications and features of this product:

Specifications:

• Model: XH-M422
• Chip: TPA3116D2
• Bluetooth Version: 4.2
• Power Supply: DC 12V-24V
• Output Power: 50W x 2 (dual channels)
• Input Modes: Bluetooth, U disk, TF card
• Audio Format Supported: MP3, WAV, APE, FLAC
• Frequency Response: 20Hz-20kHz
• Impedance: 4Ω - 8Ω
• SNR (Signal-to-Noise Ratio): ≥100dB
• THD (Total Harmonic Distortion): ≤0.1%

Features:

1. High Power Output: Capable of delivering up to 50W per channel, making it suitable for a variety of audio setups.
2. Integrated Bluetooth: Allows for wireless streaming from Bluetooth-enabled devices.
3. Multiple Input Options: Supports U disk (USB flash drive) and TF card for playing audio files directly.
4. Easy Power Supply: Operates within a wide range of DC power inputs (12V to 24V), providing flexibility in power sources.
5. Compact Design: The module is designed to be compact, making it easy to integrate into different audio projects or enclosures.
6. High-Quality Audio: Utilizes the TPA3116D2 chip known for high efficiency and low distortion, ensuring high-fidelity sound reproduction.
7. Protection Mechanisms: Built-in over-temperature, over-current, and short-circuit protection to ensure safe operation.

Applications:

• DIY audio projects
• Home audio systems
• Portable speaker projects
• Car audio enhancements

Dimensions:

• Board Size: Approximately 90mm x 70mm x 25mm (LxWxH)

Connectors and Controls:

• Power Input: DC Jack for power supply
• Speaker Output: Screw terminals for connecting speakers
• Audio Inputs: USB port, TF card slot, and Bluetooth antenna

Usage Instructions:

1. Power Connection: Connect a DC power source (12V-24V) to the power input jack.
2. Speaker Connection: Connect the speakers to the output terminals ensuring correct polarity.
3. Input Source: Choose the input source by inserting a U disk, TF card, or pairing a Bluetooth device.
4. Playback Control: Control playback using the connected Bluetooth device or buttons on the module (if available).

Notes:

• Ensure the power supply matches the required voltage and current ratings to avoid damage.
• Verify speaker impedance matches the specifications for optimal performance.
• Handle the board carefully to avoid static discharge or physical damage.