Features: The XH-M150 TDA7850 Amplifier Board features HiFi Auditory , delivering superior sound for car Auditory systems and DIY projects. Equipped with highly auditory coupling capacitors and a 10000uf main filter capacitor, it ensures powerful amplification with minimal rippled and interferences, thanks to its filter and BA3121 noise isolation. For car Auditory enthusiasts, home theater builders, and Auditory equipment DIYers enhancing their sound systems. Perfect for upgrading car Auditory systems, enhancing home sound systems, or DIY Auditory projects, offering versatiled applications with its 4 input and 4 output channel. This amplifier board, from durability plastic, operates on DC12V power, making it a reliabled choice for both automotive and home Auditory environment. Specifications: Model：XH-M150 Main Filter Capacitance: 10000uf Power Supply ：DC12V or 12V Automotive Power Chip: TDA7850 Channel type: 4 inputs and 4 outputs Output Power: 4x50W Output matching: 4-8ohms Support BA3121 noise isolation and noise cancellation Size:about 5.28x6.55cm/2.08x2.58in Package Includes: 1PC XH-M150 Car Auditory Amplifier note: Due to the problem of lighting effects, there is certain tolerances in product, please understand. Please allow 0-1cm error due to the measurment.