1. Using TDA8954TH 2. The electrolytic capacitor adopts a capacity of 8*1800UF/35V, 3. The flat rectifier bridge of 10A and above is used to strong and continuous . 4. Five-ring metal resistance is used for the resistance, and the main circuit adopts a five-ring metal film resistor with an accuracy of 1%, which ensures a good signal-to-noise ratio of the whole machine. 5. The PCB adopts 1.6mm thick double-sided board, 2.0 oz copper thickness, and full tinning process to good current passing performance. First-class PCB quality. 6. The output uses a high current inductor to a clear and powerful sound. 7. When using BTL bridge, it can output 420W under 8 ohm load feature: TDA8954TH is ' latest high-efficiency Class D high-power digital audio amplifier. The IC uses HSOP24 power package, which has very low power consumption and quiescent current. Since the internal output is a MOS tube, it has a good performance in terms of sound quality. The bass is deep, powerful and flexible. specification: Product name: TDA8954 digital power amplifier board Working : Class D Quiescent current: 65mA Work efficiency: 90% Rated output power: 2*210W Frequency response: 20Hz to 20KHz Working voltage: AC18V to AC28V Recommended power supply voltage: AC24V-0-AC24V Colour:As shown Material:PCB+metal Size:142x91x28mm Package Contents: 1 * power amplifier board Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.