Nobsound Mini TPA3116 Audio HIFI 2.0 Channel Stereo Output Digital Power Amplifier 50WX2 DIY Using the new USA TI company TPA3116D2 high-performance power amplifier chip as the core, single-supply DC 8-25V wide working voltage, maximum 50W (left channel)+50W (right channel) two-channel output, efficiency up to 90% Now we want to introduce you our newest preamp B07719G56B, which suits very well for this amp. Cute Aluminum ChassisPerformance beyond your imagination Power range : 8-25V Can use the laptop power supply; MINI SizeW90*H35*L108 mm Large Power50W+50W Luxury materials and perfect layout with low price.For TPA3116 related items:2.0 / 2.1 / 5.1 channel assembled board/finished in case,please search TPA3116 in our storefront.