Sure Electronics AA-AB32189 | Amplifier Module

The AA-AB32189 from Sure Electronics is a compact and powerful Class-D amplifier board designed to deliver high-quality audio amplification with remarkable efficiency. This booster module is ideal for DIY audio enthusiasts, custom speaker builds, or upgrading existing sound systems where space and power efficiency are paramount. Whether you are constructing a home stereo setup, a portable PA system, or integrating amplification into a bespoke project, this board offers a reliable and straightforward solution.

At its core, the amplifier utilises the STMicroelectronics TDA7498 chipset, providing a nominal output of 2×100 watts into 6 ohms. With a signal-to-noise ratio of 95 dB, it ensures low-noise audio reproduction, preserving clarity and detail across the frequency range. The board achieves an impressive 90% efficiency, minimising heat generation and reducing the need for bulky heatsinks. Input and output connections are versatile, featuring RCA and PCB solder pads for inputs, alongside screw terminals and solder pads for speaker outputs, accommodating a minimum load of 6–8 ohms. The gain is set at 24 dB, and the compact dimensions of 122 x 91 x 39 mm allow for easy integration into enclosures. This amplifier board combines robust performance with flexible connectivity, making it a superb choice for demanding audio projects.