TPA3116 stereo audio amplifier module Power and performance Uses the TPA3116 chip for efficient audio amplification. With a 12V 5A supply, peak power can reach up to 50W. Actual output is 30W per channel into 4 ohms, for a total of 60W across two channels. Input and connectivity Supports multiple input formats for flexible use: 3.5 mm stereo input USB audio input Bluetooth 5.0 wireless input RCA input TF card USB input (OTG capable), suitable for connections to computer, mobile phone, or other OTG devices HiFi performance and reliability Delivers clear, detailed HiFi sound with minimal audible noise. Extensive circuit optimization ensures low noise even at higher output levels. Use scenarios Home stereo or DIY hifi setup Connect to powered speakers or small bookshelf speakers via the 4 ohm load. Play music from Bluetooth, USB, TF card, or USB input from a computer or mobile device. PC or mobile device audio Use USB input for direct connection to a computer or OTGenabled mobile device for quality playback. DIY audio projects or custom speakers Ideal as the amplification stage in a multiinput speaker system, providing versatile playback options and strong stereo output.