Audio Amplifier Board with BT 5.0, 10W 15W 20W 2.0 Dual Channel Stereo Wireless Mini Amp Module with Protective Shell

I had a couple of decent speakers sitting around in the shed for a few years and somehow I found this little amp with Bluetooth input.It ended up sounding better than an expensive name brand portable bluetooth speaker I have been using with my phoneProbably sounds better because of the better acoustics with the larger speaker boxes but point is it jams.It's not as portable as the ones made for phones but I did buy a adapter for my power tool batteries. And spiffed it up with a repurposed little plastic box and rca jacks and a little heat sink that I had saved off of something before I tossed it.

I don't often buy things that don't yet have a review, but at this price I figured I go for it. This thing is awesome. It is tiny, less than half the size of a credit card. And it is loud! Also, the Bluetooth antenna is great! I can walk around my house with my phone and I haven't gotten it to cut out at all. I have a Bluetooth speaker that cuts out if I just go to the other room.I ran it into 8ohm speakers with 24v\1a and 12v\5a power supplies I have on hand and both work great. I did notice that the board ran quite warm with the 24v power supply. The instructions do say that if you run 24v to use a heat sink. The board itself is very neat and the black PCB is a nice touch. The included acrylic and standoffs are a nice touch.I only have two criticisms, which are minor especially considering the price:1) the included DC plug is wired incorrectly. The red wire is negative and the black is positive. The board itself is marked correctly. I could not initially get it to work due to this. I sent an email to the address on the documentation and they responded very quickly and let me know if the problem. I swapped the wires and it worked perfectly. The support person said that they are working to update the included documentation.2) The beeps that let you know it turned on, volume maxed, Bluetooth connected, and Bluetooth disconnected are fairly loud. The nice thing, though is that the volume maxed beep does not interrupt the audio stream.I've only had this thing for a few days. I will update it if anything drastically changes.

Others complain about the Bee-Doo sound when first powered up. I didn't find it all that annoying. But then again I'm using smaller speakers (out of an old computer monitor - not bad sound by the way) and I'm powering the module with 12VDC, not 24. I'm sure it would be louder with higher voltage, but for my purposes 12V is just fine.I've built a gift for the wife. She likes to play her music from her cell phone. Doesn't sound good that way at all. So I took some wood and built two tiny speaker boxes and mounted the module inside one of them. I'm impressed with the sound and performance. Haven't given it to the wife yet, it's for her birthday coming up in the next few weeks. So it hasn't had much of a workout. But the testing I did - it sounds good. It's not a BIG system so don't expect concert hall sound. But with the right speakers it's pretty good.

This little thing is foreal! and it pumps out some nice sound for such a little bluetooth amp. It's very small and delicate, but boy can this thing handle some power. I've had a 200w subwoofer and a 100w midrange woofer and this little Amp had no problem,never over heated or had any problems with it. Definitely worth the money because this unit and 2 20-30w speakers and your in business. I have 2 of these and to of a different kind and I love them. For the chump change they coast! It's way,way,way worth it to get some while there hot and the price is low.

This says it does 20w speakers. I had 2 15 watt speakers 4 ohm. Which according to this says 12v is best. So I used my 3D printer 5 amp 12v supply to make sure it had enough juice without any voltage dipping. Turned it half way up and on every beat it cut out. This has no filters on it and very tiny capacitors compared to other 10$ Class D amps. Also you cant change the BT name its always some chinese name. Although its its connected you cant request it and interupt it so thats good. But it didnt work for what I needed so I returned it. Will have to get a different one.

I didn't expect it to be so small, but it works great!

Purchased two of these and they do what I expected them to. I really like the small size which can be mounted anywhere.And wont take up much room. I run each on a 12v 2a power supply and they work flawlessly on the application that I use. The volume does slightly distort a bit at higher volumes but I attributed to the speakers I washed using, more specifically the crossover as well as the power supply. I'm sure with a 20v or higher these will sound better since they are rated up to 24v. Note that they do become pretty warm with the higher voltages.

Works as described. Wish the volumne and pause play was bigger