Bluetooth 5.0 Audio Amplifier Board, ZK-MT21 2.1 Channel 50W X 2 +100W Mini Subwoofer Power Amp HiFi Digital Audio Amp Module for Home Speakers(20-100W, 4-8¦¸), DC 12-24V, BT AUX Input

Great little amp. Used this to replace my klipsch ProMedia 2.1 amp, night and day difference. You have more control over the sound and the Bluetooth is a great feature. One thing I would like to see maybe in a future revision is a bluetooth antenna especially if you have the unit under a very thick wooded desk. Edit: I have noticed that when I shut down my laptop there is high pitch hum coming from the speakers, I’m using high quality audio cable. Very annoying.

Easy to use and assemble, I use it for my center channel Klipsch speaker and it powers it fine. Bluetooth can reach from across the room and handles different devices well

Bought to make 2 parable speaker boxes and they work fine separately but the tws feature don't work and they won't pair together after following the pairing instructions and after researching how to pair them they still won't pair

It's a terrific little device except for the face it does need a 24v power cord. They give a piece of one. Do order one of don't have it. That's the reason it doesn't get 5 stars. You will have to build it to a degree but nothing technical. Otherwise, it BOOMS. I bought the 80watt and it rocks hard plus if you have a sub... prepare for techtonic aftershocks. Yes it can.

It worked only for 3 months, now you can connect bluetooth but no sound. I know is cheap, but not as cheap as 3 months. Edited, now is working again like new. Don't know the reason, just touching settings in the app and it becomes fixed.