Review on 🔊 Yeeco 2.1 Channel Audio Amplifier Board: 2x80W+100W Power Amplifier for DIY Speakers with Volume Knob & 3.5MM Audio Input by Chase Hosea

This little amp performs well. I only needed it to drive the subwoofer hard enough. Well, for an experiment for the grandson of elementary school grades. It worked very well, withstood the bad relationships between the little guy and his father, and moved on. The hollow power connector is the same size as the 120w power adapter I already had for my old laptop, so it worked great for my purposes. For what it's worth, my output scope showed a nice clean sine wave across the range, but I've never tried much above 330Hz.