BT20A

I’m very impressed with the Fosi Audio BT20A. It’s compact, well built, and surprisingly powerful for such a small amplifier. The Bluetooth connection was quick and stable, and the sound quality is clear with plenty of power for my speakers. The controls are simple and easy to use, and I really like the clean, minimalist design. It’s also great that it doesn’t take up much space, making it perfect for a home audio setup. For the price, the performance is excellent. Highly recommended for anyone looking for a simple, compact, and powerful Bluetooth stereo amplifier!

TL;DR: This works exactly as it should. Great piece of equipment is such a tiny form factor I've been meaning to setup a more permanent outdoor speaker solution to my backyard and was going to go with the old fashioned "run 200 feet of speaker cable" because the high receiver I bought was pretty far away and I was going to use Zone 2 for the speakers. But this little package came up on my searches and it was exactly what I wanted and more. There is an area in the backyard that we set up outdoor movies at and I use a portable speaker for sound. Instead it dawned on me that not only can i stream music from any source with this bluetooth connection to this device, I can also double up and use it for outdoor movies if I place them correctly. Well I found an outdoor telephone jack and indoor jack and I was able to run audio cable outside through those openings which were right next to where I would put the movie screen. So I was able to put two outdoor speakers in a place so that it can provide sound for movies AND they are in a general area that I can stream/play music for the backyard in general. No need to wire anything from the receiver and eliminates the need to bring out a boombox outdoor speaker for movies. What I was really happy about is how fast and solid the bluetooth connection is. I use an old laptop for streaming music and store all my ripped CDs. I thought I was going to have to hardwire the laptop to this Fosi amp because the laptop is like six years old. After a little work and trial and error, I finally figured it out and it works. The first time the laptop had a hard time finding it but now that it is in the list of known devices, it connects flawlessly. I tried iphones, tables, etc. and all of the newer devices find it with no problems. Even my echo show found it and its about 40 feet away in another room. Movies sound great, have my Lounge music running at night and I'm so happy about this setup. And, going back to my resistance to running cable, I only need 30 feet of outdoor cable for both speakers so it was convenience too. Highly recommend this product: very inexpensive, does exactly what it is supposed to and greatly enhances the flexibility of what you can do.

When it comes to amplifiers, the Fosi Audio BT20A Bluetooth Speaker Amp is an undisputed game-changer. Encased in a modestly compact form, this small but mighty beast asserts the timeless adage that size isn't everything. It defies its dimensions, delivering an impressive level of power that can rival or even surpass larger counterparts. The first thing you'll notice about the BT20A is its design. Don't be fooled by its diminutive size; this amplifier does not compromise on quality or performance. The unit packs a serious punch for a device of its stature. It's engineered with high power output to deliver crystal clear, rich, and detailed sound to your speakers. The BT20A boasts an impressive feature set, including its Bluetooth functionality. The Bluetooth connection is smooth and reliable, extending a generous range that grants you the freedom to roam while maintaining control over your audio. Whether you're looking to pump up the volume for a backyard barbecue or craving some soothing tunes in the tranquility of your study room, the BT20A delivers outstanding performance with style and ease. But what truly sets the Fosi Audio BT20A apart is not just its superb performance and compact design; it's the company's exceptional commitment to customer satisfaction. I experienced a minor hiccup with the Bluetooth connectivity of the first unit, but Fosi Audio's customer service was absolutely stellar. They promptly sent out a replacement, ensuring that the minor setback was resolved efficiently and I could get back to enjoying my music without delay. Fosi Audio's willingness to stand by their product and swiftly address any issues is highly commendable. It's a testament to their dedication to providing a top-notch customer experience, further adding to the already spectacular appeal of the BT20A. In conclusion, the Fosi Audio BT20A is a true titan in a compact package. Its powerful output, seamless Bluetooth connectivity, and Fosi Audio's stellar customer service make it an unparalleled choice for anyone looking to enhance their audio experience. If you're seeking a small, powerful, and reliable Bluetooth amplifier, I wholeheartedly recommend the Fosi Audio BT20A. It may be small in size, but it's big on performance.

Great little amp, looks good on my living room and doesn't take that much space. It is powerful enough to drive my EOSONE ESF 400 at a decent volume. Connecting speaker is easy you can either get banana plugs or just bare speaker wire. I just wish they specified how and which frequencies are affected by the EQ, but t sounds great nonetheless

So far, so good. This setup fits my needs perfectly for playing music on my patio from my iPhone via Bluetooth. I paired the Fosi amplifier with a pair of Polk Audio Atrium 8 outdoor speakers, and the combination has exceeded my expectations. The amp has plenty of power to drive the Atrium 8s, and they sound fantastic—clear, full, and more than loud enough for outdoor listening. Overall, I'm very happy with this purchase. The only thing left to see is how well the Fosi amp holds up over time, but based on my experience so far, I would definitely recommend this setup.

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!

The Fosi Audio BT20A Bluetooth Stereo Amplifier has been a great little amp for a compact setup. I’m using it in a small turntable system, driving a pair of 3.5-inch bookshelf speakers, and it’s been more than capable. Power is plenty for a smaller room, and it sounds clean and enjoyable without feeling strained. The bass and treble controls are simple but effective, giving just enough adjustment to dial in the sound without overcomplicating things. The Bluetooth feature is a nice bonus and works well for streaming music from my phone when I don’t feel like spinning records. One of the biggest advantages is the size. It’s small, simple and clean looking, lightweight, and easy to tuck away, which makes it perfect for minimal or space-limited setups. It doesn’t try to be fancy, but it does exactly what it should. For the price, this is a very solid value. If you need an affordable, compact amp for a small speaker setup, this is an easy recommendation.

Unlike other posters for this product, I did NOT use the FOSI BT20A as my primary amp. Instead, I used it to wirelessly connect my old circa 1979 2226B Marantz amplifier to my old 1985 JBL 4312 speakers. To do this, I also bought a Bluetooth transmitter/receiver dongle which I attached, in TRANSMITTER mode, directly to my Marantz speaker outputs. I then hooked up my JBL speakers to the FOSI unit using banana plug adapters. The FOSI will accept either banana plugs or bare wire. My speakers are bare wire, but I opted for the plug adapters as they seemed the cleaner alternative. The FOSI amp is a Bluetooth RECEIVER, so whatever gets transmitted from the dongle attached to my Marantz in TRANSMITTER mode will be caught by the FOSI RECEIVER amp and pumped thru the speakers. And there's your wireless connectivity! I have had this setup for only about a week now, and I'm still experimenting with different settings. The first thing I discovered is, that if you're using another amp as the primary amp (the Marantz, in my case), you had better turn the bass and treble controls on the FOSI down to a bare minimum (or altogether off), otherwise you will have a tremendous amount of distortion, especially in the midrange. I'm using the Marantz amp to control the bass/midrange/treble, and the tone boost the FOSI provides can be painful. If, like me, you're using the FOSI to resurrect an old stereo system, I would recommend you start with the FOSI bass and treble at zero (6 o'clock) and the volume at a quarter (9 o'clock) and adjust both your primary amp as well as the FOSI from there. Currently, I have my FOSI bass and treble at just a bit over the minimum, while its volume is at the halfway mark (12 o'clock). I may slightly readjust, but this is working well for me now. The FOSI sound quality is somewhat on the bassy side. Its volume is tricky. I suspect it's 50 watts per channel, totaling to the advertised 100, but that's still a lot! Midrange can be tricky, especially at louder volumes, where you may get a blaring distortion, unless you really play with bass and treble. This is why I recommend fine tuning the tone and volume controls on both your old amp and the FOSI, if you're planning on using it to make an old stereo system Bluetooth. Small increments/decrements on either end will produce noticeable changes. I primarily use my stereo to play old vinyl, and this is where I'm still struggling with the sound. I have also adapted my old Marantz to be a Bluetooth receiver (with a separate receiver dongle) and play my phone thru it. The Marantz captures my phone tunes from the receiver dongle, transmits them thru the transmitter dongle to the FOSI receiver. The sound quality is admittedly better in 100% digital format. The FOSI is only about 12-14 feet away from the Marantz primary amp, so I cannot speak on range. However, my amp and its components are in a closed cabinet and there is a wall between it and the FOSI. I have not had any issues with connectivity. Sound is clean and uninterrupted no matter what else we have running. Bluetooth connection is a snap between my transmitter dongle and the FOSI, especially if the transmitter is ONLY used with the FOSI, as in my case. Once first contact is made. both units will remember their last connection. Hope this helps if you're trying to bring new life to your OLD stereo system!

Sono soddisfattissimo. Piccolo amplificatore con grande potenza e suono pulito senza distorsioni. Acquisto super consigliato per chi ama la musica e gli impianti fai da te.

Este amplificador fue una excelente compra junto con un preamplificador Fosi Box X2. Como alguien que le gusta la música por hobby, me sentí muy bien de cómo quedó armado mi audio. Conectando el preamplificador a este amplificador, puedo escuchar mi música de mi tocadiscos, y cuando necesito utilizar las bocinas para ver un video, una película, o escuchar música, se puede conectar este amplificador por bluetooth a mi laptop o mi celular sin necesidad de moverle nada, solo con que esté encendido y no haya nada corriendo simultáneamente. Y la conexión es ultra rápida también. También si compras bocinas que sus cables no tienen la punta dorada (es decir es puro cable) este amplificador viene con manual y puntas de plástico para instalarlas sin tener que comprar los tips por aparte, y es muy sencillo conectarlas.

Alles wie beschrieben, funktioniert mit iPhone, iMac und Dell Laptop einwandfrei. Auch nach drei Std. Dauerbetrieb nur leicht warm geworden, keine Verbindungsabbrüche. Der Klang ist für mich sehr gut (ich bin keine Referenz, ist mein subjektiver Eindruck). Ich nutze zwei Teufel M500 THX Center Speaker.

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

A very small unit with an amazing output. Works well with my Q Acoustic 3010. Good surround sound with two base and treble controls. Bluetooth connectivity is great and very easy to pair. I recommend it to anyone looking for a Bluetooth amplifier.