- Fosi Audio BT20A Bluetooth 5.0 Stereo Audio 2 Channel Amplifier Receiver Mini Hi-Fi Class D Integrated Amp 2.0 CH for Home Speakers 100W x 2 with Bass and Treble Control TPA3116 (with Power Supply)

I have been using this amplifier for a month now. It is working without any issues. The build quality of the amp as well as the adapter is very good. Looks tiny besides my old amp. My Old amp stopped working so am using this amplifier as an temporary alternative to power a set of Solidaire SS100 bookshelf speakers with a 12-inch woofer, a 4-inch midrange, and a 1-inch horn tweeter with impedance of 8 Ohms. Bluetooth range is also good. Comparable to my existing Logitech Bluetooth adapters. I have noticed it does not get warm on long usage when listening at acceptable volumes at home. The audio quality is flat and commendable in the Fosi amp, but I seem to miss the warmth my old Solidaire AS1200D amp provided. So, I tend to boost the lows and mids from the equalizer to get the desired effects. My decision on buying this over Aimyia amp was swayed because FOSI provide a warranty on their product, but Aimyia brand amps have no such mention in their listings.

Too tiny, infact the provided adapter brick is larger. Felt little warm after couple of hours of usage. Hopefully it will last for years to come. Have hooked my LG FB162 System speakers and the sound coming out is good. Even at low volume can get clarity. Bluetooth works like charm even when I take the source device in a different room still sound doesn't distort. Wish they have provided a remote or an app to control Bass and Treble.

Being a Class D amplifier it is very compact in size, more so as the power supply is separated out by way of an adapter. The digital input (bluetooth etc) sounds great, if reasonably good speakers are used. However when analog input is there, the sound quality goes down remarkably. Therefore if the requirement is to use it with LED TV or record player (aux input), as in my case, better to go for Class AB amplifier for wholesome sound. That's why one star less.

Not only is the sound quality good, its very compact and has practically no setup process. A boon for those good speakers stranded without an amp

Amazing amp that does the job well! Bluetooth sound signature is a treat for the ears. I wasn't happy with the sound via analog/RCA. But when I paired it with a decent dac it was perfect! Easy to operate.

Works wonderfully for my old Sony AZ2D system. The original Sony touch panel was defunct and this Fosi module has brought my amazing speakers back to life. The Bluetooth is superb. No pairing, no “sleep mode” just leave it on and connect anytime without a fuss. Compact, solid metal construction, monochrome looks, and a vintage mechanical flip-switch for powering it in and off.

So far working well👍

Very good & economical at this price . Full paisa vasool .

Works perfectly! I used this to fire up a pair of outdoor speakers that came with our house, and it’s been flawless. Super easy to connect via Bluetooth, and the sound quality is great — clear, strong, and consistent. I’ve left it on pretty much all the time, and it’s been running solid for about 8 months with no issues at all. For the price, this little amp delivers big performance. Highly recommend.

I had the non-Bluetooth version which unfortunately died a death during a house move. Loved the simplicity of the design so much I went for the bluetooth version. Fantastic, no issues whatsoever, easy setup, great sound quality and fantastic range on the bluetooth. I can go upstairs in our old victorian terrace with my phone and not interrupt the music playing downstairs.

Mój amplituner Onkyo zajmował miejsce w moim minimalistycznie urządzonym salonie , dodatkowo nie posiada bluetooth , więc zakupiłem Fosi Audio , i.... Nie jestem melomanem i pewnie dla tego :-) nie słyszę różnicy między tymi wzmacniaczami , więc polecam wam też bo większość z was tak jak ja jej nie usłyszy

I’ve had it for a year and no problems, great sound

Llevaba tiempo buscando un amplificador en condiciones, hace algún tiempo compre uno por aliexpres de 300w que suena bien pero no del todo y que tenia cosillas que no me gustaban, como una luz azul enorme rodeando la ruleta del volumen, que cada vez que lo encendías se escuchaban como interferencias de contacto.... Encontré este por amazon y lo tuve un tiempo en la cesta hasta que lo compre, por que si que es verdad que su precio no es económico (cuando lo compre me costo 80 euros) pero merece la pena. Ampli minimalista con tan solo tres ruletas y una palanquita para encenderlo. Pequeño y muy versátil, con tan solo 100w da mucha mas potencia y calidad que el que tenia de Aliexpress. No tiene luces (solo tiene un led muy pequeño debajo de la palanquita de encendido que te indica lo dicho) por lo que es perfecto para ver pelis de noche sin que moleste. Algo fantástico es que te permite conectar directamente el cable de los altavoces hifi, es decir los dos hilos (rojo y negro) o también lleva para que le pongas un conector de tipo banana a los cables y los puedas conectar como si de un Jack se tratara, yo los compre al mismo tiempo ya en la ficha del producto recomendaban uno y la verdad que fantástico recomiendo 100% el ponerle los adaptadores, ya que es mucho mas fácil de conectar y desconectar y no produce ninguna interfería por mal contacto. Calidad de sonido perfecto, yo lo tengo para unos altavoces pioneer y suena de lujo, incluso en exteriores da la suficiente potencia. También decir que al ser un ampli tan pequeño la fuente va fuera y es algo grande, pero sin llegar a ser abusivo. Producto recomendado.