Key benefits Stable power delivery for clear, continuous audio The main circuit uses 4 x 470UF SMD electrolytic capacitors to provide strong, uninterrupted power for reliable audio performance. Low noise, signal integrity precision chip resistors are selected to maintain a good signaltonoise ratio across the unit. Efficient, proven amplification Built around the TPA3116 audio amplifier IC for dependable, quality amplification. Robust, quality PCB construction The PCB is a 1.6mm thick doublesided sheet metal board with 2.0A copper and a tin spraying finish to optimize current flow and longterm reliability. Firstclass PCB quality. Product details Key component: TPA3116 The design centers on the TPA3116 amplifier IC to deliver efficient, clean audio performance. Power and signal path components 4 x 470UF SMD electrolytic capacitors and precision chip resistors contribute to stable operation and low noise. PCB construction 1.6mm thick doublesided sheet metal board, 2.0A copper, tin spraying finish to improve current flow and durability. Firstclass PCB quality. Compatibility and use cases Designed for projects using the TPA3116 based audio amplification approach. Suitable for DIY stereo amplifier builds, small home audio systems, and compact speaker upgrades. 23 practical applications DIY bookshelf speaker amplifier Integrate into a compact, twochannel amplifier project to drive bookshelf speakers with clean, reliable performance. Small home theater or computer audio upgrade Use in a compact amplifier module to improve audio quality for a TVconnected sound setup or desktop speaker system. Entrylevel public address or karaoke system Employ in a small PA or karaoke setup where stable power and low noise are important for clear vocal and music playback. Notes Specifications are centered on the components and architecture described: 4 x 470UF SMD electrolytic capacitors, precision chip resistors, TPA3116 IC, and a 1.6mm thick, doublesided PCB with 2.0A copper and tin spraying.