AK45 Stereo Audio Amplifier,300W Home 2 Channel Wireless Bluetooth 5.0 Power Amplifier System, Home Amplifiers FM Radio, USB, SD Card, with Remote Control Home Theater Audio Stereo System

Very nice with tons of possibilities. My immediate use is for the rear speakers in my surround sound system. I’m switching over from the 3 in the front, 2 echo speakers in the back with a subwoofer to live speakers in the rear. I’d always operated the rear speakers in I think they call it 5.1 mode where the rear speakers are simply a delay of the front speakers. When I’d bought them, there was no 7.1 mode but the speakers were a good quality and I’d always thought that I’d wasted a little money buying such a quality speaker for that purpose. A couple of years ago I purchased a new receiver and didn’t pay attention to it’s long list of applications. I later realized it supported 7.1 sound so with a separate amplifier, they could be fully integrated into the surround sound system. This amp did all that and more. I’m not currently using the Bluetooth functionality but plan to set that up as well in the near future. Don’t let the size of the amplifier throw you off. It’s very powerful and puts out some real power for clear and crisp sound. The size makes it possible to put the amplifier close to the reciever without even knowing it’s there. I have been able to connect to it pretty easily from a 2 room away range within my typically sized ranch style home.

This is a great little stereo amp for projects, working on speakers, and such. The unit is fairly flexible regarding source inputs, had clear labeling and display, and easy speaker and input connections. It's probably just a tad bigger than I needed for casual speaker repair and such, but hard to beat the price for a fully enclosed and ready to go solution. Power supply is built-in (just an AC power cord, included) but also has 12V input power if needed, say, remotely. Can also be used a small P.A. system, with 2 mic inputs. Overall, a lot of functionality and power for not a lot of money.

The amplifier worked fine and the sound was clear, but one thing I haven't seen anyone mention was that it has a very loud Bluetooth Connected / Disconnected sound that I couldn't find any way to turn down, and the louder the amplifier was turned up the louder the sound. I used the amplifier in my bedroom to play ambient music to sleep to and it would disconnect/reconnect to Bluetooth a few times during the night, which would often wake me up. I ended up buying a different brand which reconnects silently, and doesn't disconnect as often, so I'm much happier. So I wouldn't recommend this product in any setup that might include playing music or white noise to sleep to.

Work's excellent!! Sounds great, easy to setup

This small amp really delivers, The sound is crisp and clear. It quickly paired with my tablet. A great deal for $30.00

I bought it to replace an existing stereo amp. The sound quality is great. The price is awesome. But 2 things made me take a star. However, these issues may cause a much lower rating if it was in use in different settings. The 3-star rating is only for my current situation. First, the Bluetooth range is quite short. The unit wouldn't connect well at first. So I moved the Bluetooth adapter to the computer that was closer to the unit. This time, it connected fine. But the sound would stutter. So I moved the card to the computer that was closest to the unit. The Bluetooth connected easily and the sound quality was great without any stutter. In fact, it was better than when I used the previous amp. However, the old unit used to be able to connect to the computer that was farthest away without any issues. Perhaps the Bluetooth antenna makes the difference. The old unit had a Bluetooth antenna whereas this unit didn't. The closest unit is about 15 ft away. 2nd closest unit is about 25 ft away. The farthest one is about 35 ft away. There isn't any obstruction between the computers and the unit. Perhaps this unit's Bluetooth isn't 5.0. The old unit (Bluetooth version 2.0) was able to connect to the same adapter when it was plugged into the farthest unit. I'm keeping it in spite of the problem because it's functioning fine and for $35, it's good enough. The second problem is remote control. No, battery isn't the problem. The power button works fine. But the volume control doesn't work at all and the mode button works intermittently. Again, this isn't a problem for me because I'm using this unit to play music all day in a retail business setting. So I don't need to manipulate volume or change modes. I just turn it on in the morning and turn it off at night. So I'm keeping it as is. However, this would pose a big problem in a lot of different settings. So beware. I'd have returned the unit if I were to use it for personal use. The 3-star rating was given for my current situation. Update: As of March of 2025, the unit is caput. Initially, I got plenty of distortion and thought it might be the wire or the speakers themselves. Did the trouble shooting and turns out it was this amp. While waiting for the new amp to arrive, it gave out completely one channel at a time. At this time, it is completely dead. That was 15 month lifespan for 30 some dollars. I guess that's not terrible considering the price.

This was easy to set up and sounds great. I love that it has blue tooth so I can play music from my phone too.

FM doesn't get the best reception