XH-A150 PAM8403 Bluetooth Amplifier Board 5W+5W Dual Channel DC 5V

XH-A150 Mini Bluetooth Digital Power Amplifier Board – PAM8403 5W+5W Dual Channel

Take your DIY audio projects to the next level with the XH-A150 Mini Bluetooth Digital Power Amplifier Board. Powered by the reliable PAM8403 chip, this compact module delivers 5W + 5W dual-channel stereo output — big sound in a small package. Whether you're building a custom speaker enclosure, a portable singing machine, or a home audio project, this board gives you the wireless flexibility and audio clarity to make it happen.

Made in Mainland China.

Key Features

• Bluetooth Wireless Connectivity: Stream audio wirelessly up to 20 meters (open space, no obstructions) from any Bluetooth-enabled device.
• PAM8403 Chip: High-efficiency Class D amplifier delivering up to 5W per channel with low distortion and minimal heat generation.
• Dual Channel Stereo Output: 5W + 5W for a full, rich stereo listening experience.
• TF Card & USB Playback: Insert an SD/TF card or USB flash drive loaded with audio files for standalone playback — no phone or computer needed.
• 18650 Lithium Battery Compatible: Designed for use with a standard 18650 rechargeable cell (battery not included) for portable, cord-free operation.
• 5V Micro USB Power Input: Also powers directly from any standard 5V Micro USB power source (power bank, USB adapter, etc.).
• Compact Size: Measures just 99 × 64 × 24 mm, making it easy to integrate into custom enclosures or DIY builds.
• Easy Setup: Simple speaker wire connections (red = positive, black = negative) and intuitive controls make setup straightforward.

Specifications

How to Use

1. Install a compatible 18650 lithium battery, observing correct polarity (battery sold separately).
2. Connect your speakers using two-wire leads — red to positive (+), black to negative (−).
3. Insert a TF/SD card or USB flash drive containing your audio files.
4. Switch the board on — it will automatically detect and play files from the SD card (priority) or USB drive.
5. Alternatively, pair your phone or device via Bluetooth and stream audio wirelessly.

What's in the Box

• 1 × XH-A150 PAM8403 Bluetooth Digital Power Amplifier Board
• Note: 18650 battery is NOT included and must be purchased separately.

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Frequently Asked Questions

Q: Does the XH-A150 Bluetooth amplifier board come with a battery?

A: No, the 18650 lithium battery is not included with the XH-A150 amplifier board. You will need to purchase a standard 18650 rechargeable cell separately and install it, making sure to observe the correct positive and negative polarity as marked on the board.

Q: Can I use this PAM8403 amplifier board without a TF card or USB drive?

A: Yes! The XH-A150 supports three input modes: Bluetooth wireless streaming, TF/SD card playback, and USB flash drive playback. If no card or drive is inserted, simply pair it with any Bluetooth device (smartphone, tablet, laptop) to stream audio wirelessly up to 20 meters.

Q: What type of speakers are compatible with this amplifier board?

A: The XH-A150 PAM8403 board is compatible with passive speakers (those that require an external amplifier). It delivers up to 5W per channel, so speakers rated in the 3–8W, 4–8 ohm range are ideal for optimal audio performance in DIY builds and custom enclosures.

Q: Can I power the board without a battery using USB only?

A: Yes. The board accepts DC 5V via its Micro USB port, so you can power it directly from a USB power adapter, power bank, or computer USB port without needing the 18650 battery installed.