2 x 50W + 100W Class D 2.1 Amplifier Board with Volume Controls - TPA3116D2

This TPA3116D2.1 amplifier module offers a compact and powerful solution for driving three speakers from a single board, delivering 2 × 50 W plus 1 × 100 W at 8 Ω. It is ideally suited for DIY audio projects, multi-channel sound systems, or upgrading existing speaker setups where space is at a premium. Whether you are building a custom home cinema, a portable PA system, or a dedicated stereo with subwoofer, this module provides the flexibility to handle diverse configurations with ease.

At its core, the module employs a Texas Instruments TPA3116 Class D amplifier topology, ensuring high efficiency and low heat generation. The signal-to-noise ratio is rated at 1, which indicates clean audio reproduction. Input connectivity is versatile, offering either a 3.5 mm stereo jack or a three-pin line input terminal. Speaker outputs are via screw terminals for secure and straightforward wiring. The module measures 70.4 x 100.3 x 29.7 mm without potentiometers, with shaft lengths of 15.3 mm, making it easy to integrate into enclosures. It supports a minimum load of 4 Ω and operates across a wide frequency range.

This amplifier module combines robust power output with practical design, making it an excellent choice for enthusiasts seeking reliable multi-channel amplification in a compact form factor.