Bluetooth Power Amplifier Board with Subwoofer 2.1 Channel 50W x 2+100W DC 12V-24V Audio Power Amplifier Module for DIY Bluetooth Audio and Store Home Theater with Treble and Bass Control

I used this to power a 35w tactile bass shaker. Haven't used the left and right channels or the Bluetooth function, but it gives plenty of power to the 'subwoofer'. This was so much cheaper than getting a dedicated subwoofer amplifier and does the job perfectly. I'm powering it with a 12v 2amp plug I had lying around and was surprised that it managed to power it given what is written in the instructions.

I bought this little amplifier, not believing it would work for the price. When I connected everything, I was shocked that it worked and produced such good sound. I recommend it!

I bought this item again to keep it for future use. Old speakers can be attached, subwoofer, as any speaker still do the job. Excellent result, very cinematic.

So far so good

Is perfect

Didn't work

These little modules do what they says they do, so that's good. What they also do is emit a huge amount of radio frequency interference. This can be resolved by adding additional components, which is extra work and cost that not everyone will be prepared to do. See picture with my own solution

Did not work properly i dont like it the item was damaged

IT WORKS GREAT! AFTER I PUT IT TOGETHER I WAS TRYING TO CONNECT IT TO BLUETOOTH BUT IT WOULDN'T I THOUGHT T WAS DEFECTIVE OR THEY SENT ME THE WRONG ONE. TURNE OUT IT WAS CONNECTING TO THE NEIGHBORS DEVICE. EVEN THOUGH THIS AMP DOESN'T SAY NLUETOOTH ON IT, IT IS IN FACT 100% BLUETOOTH ENABLED. I'M SO I WAS BUMMED THAT I WAS GOING TO HAVE TO RETURN IT BUT NOW I DON'T HAVE TO. (OPERATOR ERROR) I REALLY LIKE THE ANALOG FEEL OF THE KNOBS, THEY'RE NOT FLOPPY OR LOOSE AND THEY CAN BE DIALED IN NICELY. JUST REMEMBER THERE IS NO POWER CORD INCLUDED WITH THIS AMP, SO MAKE SURE TO BUY ONE. I'M USING A 20V POWER SOURCE TO RUN IT AND IT WORKS JUST FINE. EASY TO BUILD TOO. IT WEIGHS ABOUT AS MUCH AS A PAIR OF EYEGLASSES. I LIKE IT SO FAR & I'M JUST USING IT TO RUN A DUAL SUBWOOFER TO SOME OLD 3-WAY AIWA 250W SHELF SPEAKERS FROM 2001 IN THE GARAGE AND IT SOUNDS GOOD.

Did everything I expected it to do. Was a great addition to a Bluetooth speaker.

I have to rewrite this review because apparently it makes people look bad. I received a used item. I finished the assembly, and am buying a 12V adapter today to see if it works. It looks to be a good item, and while mine was not exactly pristine, it shouldn’t have any issues as it looks by all accounts to be in good working order. If it works, I’ll be updating with a sound test video as I am using it for a custom piece of art that plays music. The unit itself is brilliant in its design and simplicity. The only real issue that I can see going forward is you are going to want to use thinner wire than the heavy gauge stuff that I was going to use originally. A connector might bridge the gap just fine, though. The switch for the on off is tight, and gives a solid click when shut off, not spongy. The other knobs turn smoothly and assembly on this is very simple. Very small screws, so if you have big hands get yourself a magnetized screwdriver so you don’t lose them. Took all of 5 minutes to assemble out of the box, though there was one nut already affixed. It is also labeled 12-24V which means you have some options to power it with and it has a headphone jack to connect it via aux channel. Bluetooth, is the other option which I think might be easier if you are just using it to power some speakers. It is a solid design, and if it works, I hope it holds up for a long time. Good value for the money.

Parfait pour recycler un ensemble d'enceintes passives 2.1, et les rendre connectées. Convient très bien pour mon usage.

lots of disconnects. very particular to the PSU you use. very hard to use with multiple devices - impossible