Sure Electronics AA-KA32172 Amplifier module

The Sure Electronics AA-KA32172 is a compact and efficient Class-D amplifier module, designed to deliver clean stereo sound in a remarkably small footprint. As a 2x3W booster module, it provides an ideal solution for adding high-quality audio amplification to portable speakers, DIY audio projects, or any application where space is at a premium. Its low power consumption and minimal heat generation make it particularly well-suited for battery-powered builds, such as custom Bluetooth speakers, small sound systems, or educational electronics projects.

This module offers a nominal output of 2 × 3 watts into 4 ohms, with a signal-to-noise ratio of 90 dB (A-weighted) and a low total harmonic distortion of just 0.2%, ensuring clear and faithful audio reproduction. The amplifier features both bass and crossover equalisation controls, allowing you to tailor the sound to your specific speaker configuration. With a gain of 8.2, it is easy to drive from a variety of sources. The module measures a mere 50 x 50 x 10.8 mm, with mounting holes spaced 44.5 mm apart and a diameter of 2.5 mm for secure installation. Speaker output is via a JST PH 2-circuit connector, simplifying wiring in compact enclosures.

Whether you are upgrading a portable radio or building a miniature sound system from scratch, this efficient Class-D module offers a reliable and space-saving amplification solution.