Fosi Audio BT20A Bluetooth Stereo Amplifier, 2 Channel Home Audio Component Amplifiers for Passive Speakers, Mini Class D Amp Receiver 200W for Indoor/Outdoor/Garage/Ceiling/Bookshelf Speaker

I got this to run some higher end home audio speakers installed outside for the yard/pool area at our house. The speakers are $300 each and I had been running it on an older Sony coil-based home theater amp because I thought I needed the zones and independent volume controls/management for tone/eq. The amp in the cabinet indoors was putting out quite a bit of heat when it was powered on whether they were in use or not. The wiring was a total mess and I bluntly didn't enjoy dealing with it. I went in to this project assuming I was going to get a Denon, Onkyo, Yamaha, or some home audio mixer board + eq, or something fancy with roughly $2k budget... I was on struggle street trying to piece it all together. I only need a simple input amp. I have a cheap class T amp in my garage that works for what I am doing there, but the audio quality is trash. I rolled the dice and picked up a few of these and man, they blew my mind. They have a lot of punch/power and the audio quality is REALLY surprising compared to the old stuff I had. The BT connection is ROCK SOLID. A lot of these cheap china BT interfaces are trash and buggy. This thing pairs right up and is solid and reliable. I'm waiting on the splitters to feed the source to all of them, but per zone, they're superb. Super straightforward install and good labeling, pair with FosiXXX and go for BT. It's a small, light package and the box it comes in is pretty good for it's weight and has some heft. Not sure whether the weight is from the case or components, but it's a mosfet so we'll see about heat dissipation down the road and whether it does a thermal cutoff or not. I might end up getting more for the garage after a few sessions in the backyard. I was pleasantly surprised!

It definitely packs a punch! Way more power than I expected and that power is also clean power. For anyone that is into this type of detail I can attest that it is 4ohm stable. If your speakers are 8 to 16ohm's. you will need to step up to a unit with more wattage.The savings in having to not buy a Bluetooth receiver to attach to an old amplifier, makes it an even greater value! From that alone, it virtually paid for itself by catching it on sale. I think the difference was about $20.

Box arrived undamaged. Easy to set up. I have 2 outdoor wired speakers and needed an easy way to use them via blue tooth. Sound quality works great. As others have mentioned, I turned up the volume to about 80% and the base to 100% and the treble just a tad and now it's sealed in my vented weatherproof enclosure under my deck. I had 4mm banana plugs on my speaker wires and they just pushed right in. The hardest thing for me was to wire the components to the backer board of the weather box, which has nothing to do with this product. I purchased this baby with a coupon for $60 including tax which is a great price for this solution.

I received and installed this yesterday so this review is at first blush.Everything installed easily between my pc, amp and speakers.So far it is quiet as a mouse, no hissing or static. The speakers I am using it with are not the highest quality but they sound fine as this replaced a Logitech X-530 unit I had for years. It just died.There are 2 things I noticed with at least one of these being noted on other reviews here.1) The Bluetooth is always on although I have this hard wired to the pc. So anyone can accidentally or maliciously pair with it. There is no way to turn it off. I don't know how I feel about that although the spacing between my home and my neighbors is well outside the range of Bluetooth.2) But, even with the unit OFF, it is warm to the touch. I can only surmise that the Bluetooth is constantly scanning as I can't think of what else it could be. In addition, after playing about an hour's worth of music on YouTube it became fairly warm, but not hot to the touch. As I have only had it for a day, it may just need a little time for the components to all break in.I was able to purchase this on sale although I really wanted to purchase the BT-20 Pro which was not on sale and quite a few dollars more. but The Bluetooth could be turned off and it has a newer chip and more power.I think this will work for me as long as I don't experience any issues. I researched other brands here at Amazon and there were a few that had very good reviews but the Fosi seems to be far and away the most popular so I went with that.

This is a great little (and it is tiny) Bluetooth receiver. We just bought a house that had inside and outdoor speaker pairs.I found that the wires for each pair terminated in the utility room. I had no way of using these speakers like I wanted. But I found this little powerhouse and am now able to listen to music and podcasts from a Bluetooth connection.Note: Because I had two different pairs of speakers, I also purchased this handy little selector switch:https://www.amazon.com/dp/B000NJHAFQI hooked up the speaker wires to the selector switch, and then with a couple of spare wires tied the selector switch to this receiver and it works like magic without the possibility of impedance damage to any of the speakers.In all candor, I used ChatGPT to figure out all of this. The AI selected both products and walked me though the installation. Pretty slick.Great results!

This device has an exceptionally small footprint, but don't let that fool you. It has good performance that allows a smooth connection between my old and new devices! Hello old bookshelf speakers...you perform so well with the new Fosi. Hello old MP3 player, I didn't know you could be amplified so reliably and clearly through Fosi! And let's not forget the super stable Bluetooth connections to my phone and other devices!

I'm blown away at how well this little amp works. It's exactly what I was looking for. I had an old receiver in my living room that was huge and only played albums or the radio. I was able to hitch this tiny amp up to my fairly large stereo speakers and now can listen to music from my phone. It literally fills my whole house with music. It connected immediately.