Features: Experience powerful bass with the TPA3255 digital subwoofer amplifier board, delivering up to 315W output for deeply, impactful low frequencies and high fidelitys sound reproduction. Featuring adjustable low frequency settings, wide voltages ranges of DC18V-50V, and a compact metal and PCB design for easy installation and versatile power compatibility. Ideal for music enthusiasts, hobbyists, and professional seeking superior sound quality in customs music setups and high performances systems. Perfect for enhancing bass in car music systems, home theaters, stage sound setups, and music projects to create immersive listening experiences. This professional amplifier module combines robust construction with exceptionals music claritys, providing a reliability solution for diverse applications and elevated sound performances. Specifications: Component: Metal, PCB Size: Approx.184x98x38mm/7.24x3.86x1.5inch Color: black Working voltages: DC18~50V Output power: 315W@4-8Ω Output Adjustment Frequency:40~120Hz Phase: 0°/180° Output impedance: 4~8Ω TPA3255 Chip Applicable scenario:home theater,car music systems,Professional music equipment; Package Includes: 1pc Digital Amplifier Board note: Please allow 1-3cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.