10 Best Class D Amplifier Board 2025 in the United States

The Kinter K3118 Class D amplifier board offers a compact and economically-priced solution for those looking to enhance their audio systems. Powered by the Texas Instruments TPA3118, this amplifier ensures efficient and clean audio output.

Its inclusion of a 12V 3A power supply adds convenience, making it ready to use straight out of the box. The lightweight aluminum enclosure with mounting tabs and its small size (4.8 x 5.7 x 1.7 inches) make it versatile for various applications, such as DIY projects, home audio setups, or arcade systems.

The 3.5 mm stereo jack and gold-plated RCA inputs provide flexibility in connecting different audio sources, enhancing its usability. The Kinter K3118 remains a solid choice for users seeking a budget-friendly and functional Class D amplifier board for various audio applications.

The Doudou 2pcs TPA3116D2 Class D Stereo DC 5V-24V 2x50W Digital Audio Board is a solid choice for those seeking an efficient and cost-effective amplifier solution. This board uses the TPA3116D2 chip, known for its high efficiency and advanced modulation, providing robust performance with a wide voltage input range from 4.5V to 26V. This versatility makes it suitable for various applications, from DIY audio projects to more extensive audio systems.

The dual-channel stereo output offers up to 2x50W power, which should be ample for most small to medium-sized setups. The use of high-quality components, such as metal polyester film inductors and capacitors capable of withstanding high temperatures, ensures durability and consistent performance. Additionally, the board is equipped with input reverse connection protection and over-voltage/low-voltage protection, adding layers of safety during operation.

The compact size and surface mount design make it easy to integrate into various projects, but this might require some soldering skills. This amplifier board is most suitable for hobbyists and DIY enthusiasts who need a reliable and affordable amplification solution without delving too deep into technical specifics.