Uses TPA3116 as the core amplifier for efficient audio performance. resistors are selected to ensure a good signaltonoise ratio across the entire system. Robust PCB construction: 1.6 mm thick doublesided sheet metal board, 2.0A copper, and a tin spray finish to promote reliable current flow and longterm durability. This is presented as firstclass PCB quality. Main circuit uses SMD electrolytic capacitors in a 4 x 470UF configuration to provide a strong and continuous power delivery to the signal path. Professional and trustworthy design that emphasizes performance, durability, and reliable signal handling in compact hardware. Specifications at a glance Core: TPA3116 PCB: 1.6 mm thick, doublesided sheet metal, 2.0A copper, tin sprayed Capacitors: 4 x 470UF SMD electrolytic capacitors for strong, continuous power delivery Use scenarios DIY home audio: integrate into a small bookshelf speaker system or compact stereo project to achieve clear, lownoise amplification. Hobbyist prototyping: a reliable testbed for experimenting with audio circuits and speaker builds. Compact audio enclosures: suitable for inclusion in tightspace setups where performance and current flow stability matter.