Enhanced Bluetooth 5.0 Stereo Audio Amplifier: Fosi Audio BT10A (2021 Upgraded) Review

Amplifier works and sounds good at all volume settings as long as you use the AUX jack. I tried a bluetooth connection and as others have noticed the sound turns on and off at about 1/2 the volume setting higher. BT is quite easy to connect and works great at low volume. But as soon as the volume gets too loud, the sound turns on and then off again after a 0.5 second pause. Rather annoying. The AUX input works fine so I just removed the BT antenna and just used AUX. Pretty and small, sounds…

I bought this because my ears got tired of hearing my 9 year old daughter play her "twin tunes" on the Echo Dot. As soon as I got it, I popped it into my Polk (you know, "test") towers, each with 4x8" woofers, and was blown away. Obviously, the Polks aren't high-performance speakers (they're usually made by driven by a Denon inCommand receiver) but this little amp does a great job of keeping them comfortably loud. Anything beyond casual listening (let's say a party) and that will start to cut…

I was looking for an easy solution to add some outdoor speakers to my house, but didn't want to buy a large receiver. At first I was looking for a basic Bluetooth speaker for use on deck, but then my search stumbled upon this little gem! My only main requirement was that it had to be Bluetooth so I could stream music from my phone and/or my Revain Echo. I bought a pair of Polk Audio Atrium 4 outdoor speakers and a Fosi Audio Bluetooth amplifier. It was as easy as running the speaker wire…

Bought this little guy to replace a dying 25 year old Denon receiver in my garage audio system. I've seen some good audio houses use Class D amps, and I have a Fosi DAC/headphone amp in my office that delivers rich, clear sound through ATH-M40x headphones, so this seems like a decent choice. Unfortunately I am very disappointed so far. Setup was easy and the amp is more than capable of driving the 6 inch bookshelf speakers in my garage to a super reasonable volume. The problem is the sound…

I bought this because my ears got tired of hearing my 9 year old daughter whining her "twin tunes" on the Echo Dot. When I got it, I put it in my Polk (you know, "test") towers, each with 4x8" woofers, and was blown away. Obviously, the Polks aren't high-performance speakers (they're usually made by powered by a Denon inCommand series receiver) but this little amp does a great job of keeping them comfortably loud. Anything beyond casual listening (let's say a party) and that's going to start…

I was looking for an easy way to add some floorstanding speakers to my house, but I didn't want to buy a large receiver. At first I was looking for a basic bluetooth speaker for the deck, but then in my search I stumbled across this little gem! My only main requirement was that it had to be Bluetooth so I could stream music from my phone and/or my Revain Echo. I bought a pair of Polk Audio Atrium 4 outdoor speakers and a Fosi Audio Bluetooth amplifier. It was so easy to route the speaker wire…

As an amp this little guy is just great! Amazingly clear and powerful sound that even makes midrange speakers sing. However, there is a glaring problem. Bluetooth! It works with a very simple bluetooth configuration where there is no switch, it just accepts the bluetooth connection and stays that way until it loses the bluetooth signal. Not very elegant, but functional in most cases. If you have more than one, it's a hassle to figure out which is which. But communication and reach are enough…