1pc 100W Subwoofer Amplifier Board TPA3116D2 — Power 12–24V Digital Audio Amplifier Module Overview This singleboard subwoofer amplifier uses the TPA3116D2 digital power amplifier to deliver 100W of power bass output for 12–24V systems. It provides a compact, efficient way to add or upgrade lowfrequency performance in car audio, home theatre, and DIY speaker projects. Key benefits Powerful bass output: 100W output capability to drive a passive subwoofer and restore lowend impact. Wide input voltage: Operates from 12V to 24V, making it compatible with common automotive (12V) and highervoltage (24V) systems. Efficient digital amplification: Based on the TPA3116D2 digital amplifier, it provides efficient power conversion and reduced heat compared with traditional linear amplifiers. Easy integration: Boardformat module designed for straightforward installation into custom speaker cabinets, vehicle audio systems, or retrofit projects. Main features and attributes Model/Chipset: TPA3116D2 digital power amplifier. Power: Rated 100W output. Input voltage range: 12–24V DC. Product type: Subwoofer amplifier board / audio digital power amplifier module. Quantity: 1pc. Functionality and performance Designed specifically to drive lowfrequency drivers (subwoofers) and reinforce bass in audio systems. Digital amplification offers efficient power use and lower power dissipation, suitable for batterypowered or vehicle installations. Suitable as a dedicated subwoofer stage integrated into larger audio systems or used alone to power a single passive subwoofer. Compatibility and use considerations Connect to an appropriate 12–24V DC power source capable of delivering sufficient current for the amplifier and connected speaker. Intended for use with passive subwoofer speakers; match speaker power handling and enclosure design for results. Ensure proper electrical connections and basic cooling/ventilation during installation. Typical applications / use cases Car or truck audio upgrade: Add a dedicated 100W subwoofer amplifier to increase bass output in vehicles that use a 12V or 24V electrical system. DIY home theatre or powered subwoofer project: Integrate the module into a custom cabinet or existing speaker to create an efficient, power subwoofer solution. Portable or mobile PA cabinet: Use with battery or 12–24V mobile power supplies to provide solid lowfrequency reinforcement for small portable sound systems. Installation tips Use a stable 12–24V DC supply with adequate current capacity. Observe correct polarity on the power input to prevent damage. Provide ventilation or a heatsink as needed based on installation environment and listening levels. Verify speaker compatibility and wiring before powering up. What you get One (1) 100W subwoofer amplifier board using the TPA3116D2 digital amplifier, rated for operation from 12–24V DC. This module is a practical option for anyone who needs a compact, efficient, and power solution to drive a passive subwoofer in automotive, DIY, or mobile audio applications.