Hakeeta TPA3116 DC 8-25V 100W Mono Subwoofer Amplifier Board - Compact

In this review the Hakeeta TPA3116 amplifier board is evaluated as a compact, budget-friendly power module for DIY audio projects and home subwoofer upgrades. The single biggest reason to buy is its flexible DC supply range and strong output in a very small PCB footprint, which makes it useful for builders who need a high-power subwoofer drive without bulky components. The review focuses on build quality, feature set and real-world use, and notes that the board pairs well with switching power supplies and batteries for portable or car audio installations.

Key Features

• Wide DC range: Works from 8V to 25V so it can be powered by laptop-style switching supplies, batteries or car systems for flexible installations.
• High single-channel power: Provides a 100W mono subwoofer output or split 50W + 50W stereo outputs for compact systems needing substantial bass.
• Quality components: Uses a reputable power amplifier chip and electronic components to deliver stable performance and reduced noise.
• NE5532 input op amp: A front-facing NE5532 OPAMP is employed to buffer inputs, improving clarity over basic amplifier boards.
• Standard power jack: Includes a 5.5mm power interface for easy connection to common DC adapters and power supplies.

Who It's For

This board is best for hobbyists building a powered subwoofer or small active speaker, makers integrating a high-power amplifier into a compact enclosure, and installers who need a module that accepts common DC sources. The NE5532 buffer and solid power handling make it a good choice for home audio projects where improved input performance matters.

It is not ideal for users who need a finished consumer product with enclosure, controls or protections; buyers wanting integrated thermal or short-circuit protection, elaborate tone controls or plug-and-play home theater electronics should look at complete amplifiers instead.

Pros & Cons

Pros

• Compact PCB size makes it easy to fit into DIY enclosures and custom builds.
• Flexible power options let it run from batteries, car systems or switching adapters.
• NE5532 front op amp offers better input buffering and sound clarity than bare amplifier modules.

Cons

• As a bare module, it lacks a case and built-in protections, so installers must provide appropriate safeguards.
• Specifications are basic and do not include protection or thermal limits, requiring cautious system design.

Specifications

Material	ABS (components mounted on PCB)
PCB size	Approx. 7860mm (3.12.4in)
Power range	DC 8V - 25V
Power interface	5.5mm power jack
Single channel output	100W mono subwoofer
Channel output	50W left + 50W right
Front op amp	NE5532 buffer

Our Verdict

The Hakeeta TPA3116 board is a practical, value-oriented choice for DIY audio builders who need substantial bass power from a small module. It pairs well with switching power supplies and offers improved input buffering via the NE5532, but requires an external enclosure and protective measures. For those comfortable integrating raw modules into projects, it represents a strong balance of power, flexibility and cost.

Frequently Asked Questions

Can the board run from a car power supply?
Yes, the 8V to 25V DC range allows operation from a car electrical system when using an appropriate adapter or step-down converter.

Does it include speakers or enclosure?
No, the product ships as a bare module with a paster, screw and cap; buyers must provide a speaker, enclosure and any protective circuitry.

What connectors are used for power?
The board uses a standard 5.5mm DC power jack for easy connection to many switching adapters and DC supplies.