ITEM NAME:XH-M531 20Wx2 DC12-15V for Yamaha Class D HD Audio Digital Amplifier Board Descriptio n Description: 100% brand new and high quality Durable and practical Long service life XH-M531 Yamaha digital amplifier board dual-core chipset, high-resolution HD Class D audio amplifier board Using original two-channel Yamaha chipset, input DC12V output 20W * 2, crystal-clear sound, instantly conquered listening ears Specifications: Yamaha Chipset: YDA138-E Power Range: DC12-15V Output Power: 20W * 2 Frequency Range: 20Hz-60KHz Input Impedance: 10k Output Impedance: 4-8 Europe Dimensions: 43 * 68 * 12mm Efficiency: Greater Than 88% Input Impedance: 10k Output Impedance: 4-8 Europe Number Of Channels: Two-Channel Left And Right Indicator: Green Audio: 3.5 Audio Port Package Included: 1 *Â XH-M531 Yamaha Digital Amplifier Board Note: 1.Due to the manual measurement and different measurement methods, the actual size could be slightly different. 2.Please be reminded that due to lighting effects and monitor's brightness/contrast settings etc, the color tone of the website's photo and the actual item could be slightly different. Honesty is gold for all! XH-M531 20Wx2 DC12-15V for Yamaha Class D HD Audio Digital Amplifier Board