1、This power amplifier board is made from quality printed circuit board, which is durable for long service life. 2、Adopting high quality production technology, the pseudo soldering will not happen easily. 3、With low heat and high efficiency, providing you with good use experience and convenience. 4、Excellent performance and cost‑effective, widely used in sound equipment, home theater, bookshelf audio, car speakers, DIY audio, etc. 5、With protection against power supply reverse connection, overvoltage, undervoltage, overheating, short circuit. Item Type: Power Amplifier Board Material: Printed Circuit Board Model: XY-502 Output Power: 50W x 2 SNR: 102dB Number of Channels: Dual-Channel Stereo Purpose: Used to Change The Sound Digital Signal Applicable Scenarios: Sound Engineering, Sound Effects Equipment 1 x Power Amplifier Board 1 x Heat Sink