Check the listing for details. TPA3116 5.1 Channel Class D New Power Amplifier Board. Color: Blue, Condition: New. Listed at 48.95 USD. TPA3116 5.1 Channel Class D New Power Amplifier Board Introductions:1. Using original TPA3116D2. The power filter capacitor adopts imported electrolytic capacitor 3300UF/50V3. The main circuit of the electrolytic capacitor signal adopts Taiwan, and the main filter capacitor adopts the electrolytic capacitor imported from Japan to ensure strong and continuous power support.4. Resistance The main circuit adopts a five-ring metal film resistance 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 sheet, 2.0 oz copper thickness, and full tin spraying process to ensure good passing performance of large and small currents and PCB quality.6. The use of high-current inductors dedicated to fully shielded audio ensures that the sound is crisp and powerful. Parameters:How it works: Class DQuiescent current: 150mAWork efficiency: 90%Rated output power: 100W+100W+4*50WFrequency Response: 20Hz to 20KHzWorking voltage: DC18V to DC24VPCB size: 100*84.5MMNet weight: 0.13KG Package:1pc TPA3116 5.1 Channel Class D New Power Amplifier Board