Sure Electronics AA-AB32321 | Amplifier Module

The Sure Electronics AA-AB32321 is a high-performance Class D audio amplifier board designed to deliver robust, efficient power for demanding audio applications. This compact module provides two channels of amplification, each capable of driving 8-ohm speakers with 125 watts of clean, dynamic output, making it an ideal choice for custom speaker builds, active loudspeaker systems, or upgrading existing stereo setups where space and thermal management are priorities.

Engineered around the renowned Infineon Technologies IRS2092 chipset, this board achieves an impressive 85–9% efficiency while maintaining a signal-to-noise ratio of 96 dB, ensuring low distortion and faithful audio reproduction. The amplifier features a fixed gain of 31 dB and an integrated current limit of 5.9 A for reliable operation under load. Input connectivity is via RCA sockets, while speaker outputs and power connections utilise screw terminals for secure, tool-free wiring. The board measures 152.4 x 114.3 mm with mounting holes spaced at 134.62 x 91.44 mm, allowing straightforward integration into enclosures or chassis.

Whether you are constructing a high-fidelity home audio system, a professional monitoring setup, or a custom multi-room installation, this amplifier board offers a compact, efficient, and sonically transparent solution that brings your speakers to life with authority and precision.