Bluetooth Power Amplifier Board with Subwoofer - 220W x2 HiFi Module

Our review of the Bluetooth Power Amplifier Board with Subwoofer finds it best suited for hobbyists and small home theater builders who need a compact, high-power amp board. The single biggest reason to consider this module is its power and flexibility: dual TPA3251 HiFi chips deliver up to 220W x 2 with a peak 350W option while accepting a wide 12 to 38V input, making it easy to pair with common DC adapters or direct wiring for custom installs.

Key Features

• Dual TPA3251 HiFi chips: Provides strong, clean amplification across both channels for fuller stereo sound and reliable output at high volume.
• Wide voltage range: Accepts 12 to 38V input so it fits a variety of power sources and DIY setups without special converters.
• Treble and bass control: Built-in high pitch and bass knobs let users shape tone and add punch to low frequencies for a tailored listening experience.
• Multiple protection mechanisms: Includes short circuit, under voltage and over voltage protection to guard speakers and the module during use.
• Bluetooth and app functions: Allows APP control, renaming the BT device and setting a BT password, plus on/off prompt sounds for convenient operation.
• Wide compatibility: Works with most DC adapters on the market, and can be hardwired by connecting positive and negative power leads directly.

Who It's For

This amplifier board is ideal for DIY audio enthusiasts building compact stereo systems, subwoofer enclosures or upgrading older receivers who need substantial power and tone controls in a small package. It is also useful for small venues or garage systems where flexible power options and Bluetooth input are priorities.

It is less suitable for users who want a finished, plug-and-play consumer product with a case, remote control and certified retail warranty; those buyers should look for a packaged amplifier. Also, if absolute audiophile-grade component matching and measured reference testing are required, a dedicated rack amplifier may be a better choice.

Pros & Cons

Pros

• High output capability with reliable dual TPA3251 chips for strong stereo power.
• Flexible 12 to 38V power input works with many DC adapters or direct wiring for custom projects.
• Tone controls and Bluetooth app features let users tailor sound and manage connections easily.
• Built-in protection features increase durability in DIY installations.

Cons

• Module is a bare board without an enclosure, so additional mounting and cooling considerations are required.
• No included remote or full consumer finishing, which limits out-of-the-box convenience for non-technical users.

Specifications

Brand	Yunseity
Chipset	Two TPA3251 HiFi chips
Power output	220W x 2 (up to 350W peak)
Input voltage	12 to 38V DC
Controls	Treble and bass knobs
Functions	Bluetooth, APP control, change BT name and password
Protections	Short circuit, under voltage, over voltage, reduction

Our Verdict

The Bluetooth Power Amplifier Board with Subwoofer is a strong value for DIYers and small system builders who need powerful stereo output and flexible power options. With dual TPA3251 chips, tone controls and multiple protections, it delivers a versatile platform for custom enclosures; buyers should plan for a case and basic installation work to get the best results.

Frequently Asked Questions

What power supply does it need?
Use a DC adapter or direct wiring within the 12 to 38V range; most common DC adapters meet the requirements.

Can I control bass and treble?
Yes, the module includes high pitch and bass knobs to adjust tone and strengthen low-end impact.

Is it protected against faults?
Yes, the board includes short circuit, under voltage and over voltage protection to help prevent damage.