1、The stereo interface promises excellent sound quality more perfect, especially for heavy bass. 2、Provides chip protection to prevent overvoltage, undervoltage, overheating and short circuit. 3、The chip also support DC detection to ensure stable, reliable and secure working performance. 4、Large heat dissipation area ensures efficient cooling, which also prolongs the service life. 5、One-piece moulding has no burrs on the smooth surface, so the installation is more convenient. Item Type: Digital Amplifier Module Product Material: Printed Circuit Board Product Model: XR-189 Chip Type: TPA3116D2 Chip Protection: Overvoltage, undervoltage, overheating, DC detection and short circuit. Output Power: 2 x 50W Number of Channels: Two-Channel Stereo 1 x Digital Amplifier Module