Description: TPA3116 Digital Audio Amplifier Amplifier Board Using TPA3116 and TL074, The main circuit of the electrolytic capacitor signal adopts a chip electrolytic capacitor with a capacity of 4×470UF, which ensures a strong and continuous power support. The resistors use high-precision chip resistors to ensure a good signal-to-noise ratio of the whole machine. The PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents. Top-notch PCB quality. Using a fully enclosed dust-proof potentiometer, the performance is more stable and more durable than ordinary potentiometers! Fully shielded high-current inductors are used to ensure clear and powerful sound. Specification: Material: Metal Working Principle: Class D Quiescent current: 50mA Work efficiency: 90% Rated output power: 2*50W Frequency Response: 20Hz-20KHz Working voltage: DC18V to DC24V Maximum output current: 2A Weight: 0.1kg Size Chart: 80x80x40mm/3.15x3.15x1.57inch Package Includes: 1 Piece TPA3116 Audio Amplifier Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful on-line shopping!