Bluetooth Power Amplifier Board 2.1 Channel 2x50W 100W - APP Control

In this review of the Bluetooth Power Amplifier Board 2.1 Channel 2x50W 100W, the bottom line is simple: this module is for DIY audio builders and small home theater projects that need a compact, high-power amplifier with modern control options. The review finds the board most valuable for anyone who wants a clean HiFi-oriented signal path plus flexible input selection, because it combines two TPA3116D2 amplifiers with APP and Bluetooth control while supporting AUX and USB auto-switching.

Key Features

• High power output: Two TPA3116D2 chips deliver up to 50W per channel at appropriate voltages, giving clear headroom for bookshelf speakers or small powered setups.
• Wide voltage input: The board accepts DC 12 to 24V, which allows use with common laptop-style adapters or small battery packs for portable installations.
• AUX audio input: A dedicated AUX input ensures a pure analogue path for high pitch clarity, detailed mids and authoritative low frequencies when used with good source equipment.
• APP control: Control volume, EQ and playback through an iOS or Android app and change the Bluetooth name and password for convenience in multi-device environments.
• Memory mechanism: The board remembers the last-used mode and will auto-switch to USB or AUX if those sources are plugged in during Bluetooth playback, simplifying everyday use.

Who It's For

This amplifier board is aimed at hobbyists, custom audio installers and anyone building a small home theater or desktop speaker system who wants a compact, high-power module with both analogue and wireless control. The APP and Bluetooth features make it convenient for users who prefer adjusting EQ and source settings from a phone.

It is less suited for audiophiles who require balanced inputs, full-featured tone controls on the hardware, or professional rack-mounted amplifiers; also those needing more than two channels or substantially higher continuous power should look at larger systems.

Pros & Cons

Pros

• Strong output using two TPA3116D2 chips provides robust power for small to medium speakers.
• Flexible inputs with AUX, USB and Bluetooth plus a memory mechanism that restores the last mode on power-up.
• App support for iOS and Android enables convenient playback, volume and sound-effect control from a smartphone.

Cons

• No balanced inputs or extensive onboard hardware tone controls may limit use in studio or pro audio setups.

Specifications

Our Verdict

The Bluetooth Power Amplifier Board 2.1 Channel 2x50W 100W is a practical, good-value module for DIY audio projects and small home theater builds that need reliable power and modern control. Buyers who want a compact amp with APP control, AUX and automatic source switching will find it a capable, versatile option.

Frequently Asked Questions

Does the board work with iPhone and Android?
Yes, the amplifier supports APP control for both iOS and Android devices.

What voltage supply does it require?
The board operates from a DC 12 to 24V supply; higher voltage within that range increases available output power.

Will it switch sources automatically?
Yes, if USB or AUX is plugged in while Bluetooth is playing, the board will switch to the wired source and it remembers the last-used mode after power on.