XPT8871 5V 5W Mono Audio Amplifier Board – DIY Speaker Module

XPT8871 Mono Single-Channel Digital Audio Amplifier Board

Take your DIY audio projects to the next level with the XPT8871 5V 5W Mono Digital Audio Amplifier Board. This compact, ultra-lightweight module is perfect for hobbyists, makers, and electronics enthusiasts who want to build custom speakers, portable audio devices, or embedded sound systems. Powered via a standard USB 5V supply, it delivers a clean 5W of output power in a tiny 20×16×8mm footprint.

Key Specifications

• Model: XPT8871 (LH0106)
• Channels: Mono (Single Channel)
• Power Supply: 5V DC, 1A (USB-compatible)
• Output Power: 5W
• Dimensions: 20 × 16 × 8 mm
• Weight: 12g
• Origin: Made in China

Features & Benefits

• Compact & Lightweight: Tiny form factor makes it ideal for space-constrained DIY builds — mini speakers, custom enclosures, and embedded projects.
• USB-Powered Convenience: Runs directly off a 5V/1A supply, compatible with USB power banks, phone chargers, and computer USB ports.
• 5W Output Power: Delivers solid, clear audio amplification for small to medium speaker drivers.
• Versatile DIY Use: Great for homemade Bluetooth speakers, desktop audio systems, retro audio builds, and electronics learning projects.
• Solderable Design: Requires basic soldering — ideal for makers with hands-on electronics skills looking for a rewarding DIY build.

⚠️ Important Safety Note

The power supply polarity must not be reversed. Connecting power with reversed polarity (positive/negative swapped) will immediately damage the IC. Always verify correct polarity before powering on. Soldering tools and basic electronics skills are required for assembly.

What's in the Box

• 1 × XPT8871 Mono Audio Amplifier Board (PCB only)

Note: This product is periodically upgraded; the appearance and color may vary slightly from images shown. Please keep this in mind before placing your order if you have specific appearance requirements.

Complete Your DIY Project

Looking for more components and accessories for your builds? Check out our Airtight Transparent PET Storage Bottle for organizing your small components and boards, or browse our Leather Hole Punch Tool for enclosure fabrication needs.

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What power supply does the XPT8871 amplifier board require?

A: The XPT8871 mono audio amplifier board requires a 5V DC, 1A power supply. A standard USB charger or power bank works perfectly. Always ensure correct polarity — reversing positive and negative connections will damage the IC immediately.

Q: Do I need to solder the XPT8871 amplifier board?

A: Yes, this board requires soldering to connect your speaker and audio input wires. It is designed for DIY makers and hobbyists with basic soldering skills and tools. It is not a plug-and-play module out of the box.

Q: What speaker can I connect to this 5W amplifier board?

A: The XPT8871 delivers 5W of mono output power, making it compatible with small to medium speaker drivers typically used in DIY mini speaker builds, desktop audio enclosures, and embedded sound projects. Check your speaker's impedance and power rating for best results.

Q: Can this amplifier board be used for a Bluetooth speaker DIY project?

A: Absolutely. The XPT8871 amplifier board is a popular choice for DIY Bluetooth speaker projects. Pair it with a Bluetooth audio receiver module as your audio input source and a 5V power supply for a fully functional compact wireless speaker build.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.