precision chip resistors are selected to deliver a low noise floor and a strong signaltonoise ratio across the entire system, resulting in clearer audio accuracy. Product details: TPA3116 based main circuit for efficient amplification and compact design. Main circuit protection and performance: SMD electrolytic capacitors with a total capacity of 4 x 470 µF provide strong and continuous power delivery, supporting stable signal performance. PCB construction and build quality: 1.6 mm thick doublesided board with 2.0 oz copper and a tin plating finish to ensure low resistance and reliable current flow. Firstclass PCB quality. Typical use scenarios As the amplifier stage in a compact powered speaker or desktop audio system, delivering clear, efficient amplification in a small form factor. In DIY audio projects or hobbyist kits where a compact, reliable amplifier module is needed to drive small to medium bookshelf or satellite speakers. For educational or prototyping purposes to explore Class D amplification using the TPA3116 in a practical, quality PCB build.