Nobsound Mini Subwoofer/full-frequency Mono Channel Tpa3116 Digital Power Amplifier Hifi Integrated Class D Amp 100w - Home Theater Amplifiers - AliExpress
Amazon.com: Nobsound NS-03G Subwoofer Amplifier 100W Mini SUB Power Amp : Electronics
Nobsound NS-03G Subwoofer Amplifier 100W Mini Sub Power Amp (Black) – DirectNine - Australia
Bought this Nobsound NS-03G SUB Subwoofer amp with a TPA3116 chip. Doesn't turn on. Don't know what the DIP-switches do. Any guidance? : r/AskElectronics