Review on 🔊 DAMGOO Bluetooth 5.0 Amplifier Board - 100w Audio Amp Board, Dual Channel - DC8-24V, Easy Install - Password-Free Phone Connectivity - Silent Operation by Cristofer Cejudo

I don't know what the response range of this amp is, but I can tell you it's AMAZING! With this board and some extra materials lying around, I was able to make a speaker that sounds better than my $20 BT speaker I bought a few years ago. It was literally a 20 minute test setup to test the amp for yourself. also my first attempt to weld plastic. It looks like crap but gosh it's solid! if you are a handyman. I highly recommend building your own speakers! Edit: I had to update the review and put a star. mainly due to the fact that Bluetooth is just plain unreliable and buggy. I can start playing content and fall asleep. Wake up without streaming. and the speakers are very quiet. and my phone is still connected. no sound at all. I turn off Bluetooth on my phone. it's starting to work fine. turn back on. The speaker snaps into place as expected. but still no sound. A simple on/off will NOT solve the problem. You must shut down completely. Turn off BT on your phone. and forget the device. Reconnect the device. and connect from scratch. I was planning to replace my car radio with one but with this problem. NO WAY! too bad, because if it works. sounds amazing! The amp is MUCH better than in my car.