Review on Fosi BT30D-S Bluetooth 5.0 Receiver Amplifier 2.1 Channel Hi-Fi Stereo Audio Class D Integrated Amp - 50W x2+100W, Perfect for Home Outdoor Passive Speakers/Powered Subwoofer by Jessica Parks

It's hard to believe that a small amp can produce such an amazing sound. My setup consists of (2 Bose 501 outdoor speakers and a passive Bose subwoofer). I installed it on my porch/porch and use my phone to stream music and control the volume. Also very happy with the Bluetooth distance, so about 50 feet from the unit. Love the separate adjustment knobs. Only negative: I have to turn the amp on and off manually, not the biggy.