Review on Enhanced Bluetooth 5.0 Stereo Audio Amplifier: Fosi Audio BT10A (2021 Upgraded) by Christine Pochmara

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. But that's what they have it for not designed. When listening at full volume, the bass was deep while the highs were clear and detailed. I tested it with two of these speakers (https://www.amazon.com/gp/product/B002YPS6T6/ref=oh_aui_detailpage_o01_s00?ie =UTF8&psc=1) and installed one in her bathroom and one in her bedroom. The sound startled me. You could swear there was a submarine hidden somewhere. Lots of pressure, lots of detail. If I had a listening station (like studio monitors) to reassemble, I'd turn them back on in a hot second. Combined with more efficient speakers, this would be a killer. No issues with BlueTooth other than the "pop" you are told to expect when pairing. Since I've paired it with an Echo Dot that doesn't move or fall apart, this isn't an issue for me.