Uses TPA3116 Core amplifier technology: adopts the TPA3116 for efficient, reliable audio amplification. Power stability: the main circuit uses SMD electrolytic capacitors with a capacity of 4 x 470UF to ensure strong and continuous power. Signal quality: precision chip resistors are used to ensure a good signaltonoise ratio across the unit. Build and PCB quality: the PCB is 1.6mm thick, doublesided sheet metal, with 2.0A copper, and a full tin spraying process to promote good current flow performance. First class PCB quality. Product details 1. Using TPA3116 2. The main circuit of n electrolytic capacitor signal adopts SMD electrolytic capacitor with a capacity of 4 x 470UF ensures strong and continuous 3. The selection of precision chip resistors ensures a good signaltonoise ratio of the entire machine. 4. The PCB is made of 1.6mm thick doublesided sheet metal, with a thickness of 2.0A copper, and a full process of tin spraying to good current flow performance. First class PCB quality. Use scenarios DIY audio projects: ideal as the amplification stage in a compact stereo setup for bookshelf speakers or small home audio systems. Upgrading gear: suitable for integrating a reliable amplification module into existing audio equipment to improve performance and clarity. Education and prototyping: useful for electronics hobbyists and makers testing audio circuits and learning practical amplifier layouts.