Mini TPA3118 Amplifier Board DC10-24V Stereo 60W - Compact Power

In this review the Mini TPA3118 Amplifier Board is examined as a compact, high-efficiency solution for DIY audio projects and small speaker systems. The bottom line: this board is for hobbyists and integrators who need a Class D amplifier that runs on DC10-24V and can deliver up to 60W into low-impedance loads; its small size and TPA3118 chip make it a pragmatic choice when efficiency and space matter. The review highlights real use cases, measured convenience in wiring, and the practical limits of matching speakers and power supplies.

Key Features

• TPA3118 chip: provides efficient Class D amplification so the board runs cool and wastes less power than linear amps.
• Wide supply range: DC10-24V operation lets the board work from common laptop-style adapters or 12V/24V systems for flexible installations.
• High power with 2 ohm loads: using 2 ohm speakers and a 24V supply can reach the stated 60W output for loud, compact speaker builds.
• PBTL mode: the circuit supports parallel bridge-tied behavior to drive low impedance and extract higher output from small enclosures.
• Small footprint: at about 55x40x15mm the module fits into tight spaces inside TVs, monitors, portable speakers, and DIY enclosures.

Who It's For

This amplifier board is ideal for electronics hobbyists, DIY speaker builders, and installers who need a compact, efficient power amp for small systems like portable speakers, monitor audio upgrades, or embedded TV and DVD player projects. Its ability to run from 10-24V makes it convenient for use with common adapters and battery packs in custom enclosures.

It is less suitable for users who expect a fully finished product with connectors, enclosures, or onboard protection features; those needing multi-channel audio, tone controls, or higher-fidelity audiophile components should look for larger amplifier modules or integrated amplifiers with more features.

Pros & Cons

Pros

• Small, lightweight board that fits into cramped enclosures and is straightforward to wire into projects.
• High efficiency Class D design delivers strong output while keeping heat and current draw relatively low.
• Flexible DC10-24V supply range makes it compatible with many adapter and battery systems.

Cons

• Minimal onboard features: no enclosure, limited protection circuitry, and basic connectors require careful wiring and external fusing.
• Performance depends on matching low-impedance drivers and an adequate power supply to reach the claimed 60W output.

Specifications

Model	XR-M311
Amplification type	Class D
Chip type	TPA3118
Supply voltage	DC10-24V
Recommended input current	3A
Output power	60W into 2 ohm (with 24V)
Size	55x40x15mm

Our Verdict

The Mini TPA3118 Amplifier Board is a practical, cost-effective module for DIY audio and small embedded systems where space and efficiency matter. It delivers strong output when paired with low-impedance speakers and a suitable 24V supply, making it good value for hobbyists and integrators who can provide external wiring and protection.

Frequently Asked Questions

Can this board run from a 12V car battery?
Yes, the board supports DC10-24V, so a 12V supply will power it, though output will be lower than with 24V and speaker matching matters.

Does the module include protection circuits?
The board is a bare amplifier module with limited onboard protection; add fusing and speaker protection externally for reliable installations.

What speaker impedance is recommended?
It is designed to work with 2-6 ohm loads; 2 ohm speakers allow the highest stated output when using a 24V supply.