Fosi Audio BT10A Amplifier Bluetooth 5.0 Amp Stereo Audio Receiver

I have been hunting for a way to get great sound from my MacBook while working at my desk. I had part of the solution, a pair of Polk bookshelf speakers, but needed a compact amplifier. I tried the Pyle amp and it was pretty bad, so decided to try this based on reviews. I am super happy with the result for the following reasons: - Tiny: small footprint, it takes up almost no space on my desk, which is perfect - Easy to connect: Hooking up my speakers was a piece of cake - Flexible: I mostly use it with my MacBook BUT love that I can quickly connect my phone via Bluetooth - Bluetooth: Super easy to connect, just turn it on and it's in pairing mode. Plus the connection is stable. - Quiet and powerful: The most important point- whether I'm using my MacBook or phone the sound is not only full, it is also completely quiet, no hiss or noise of any kind. I listen to a lot of baroque music which has broad dynamic range and lots of atmosphere, I can bliss out without being distracted. I love this unit, it sounds as good as my $500 full Yamaha stereo receiver - very impressed. Highly recommended for any audio application.

### ⭐⭐⭐⭐⭐ Small amplifier, surprisingly powerful I bought the Fosi Audio BT10A to power a pair of passive Dayton Audio B65 bookshelf speakers, and I'm very impressed with this little amplifier. The first thing that surprised me was **how much power this tiny box actually has**. I'm using it in a desktop setup, and it has more than enough volume for my room without needing to push it anywhere near maximum. The sound is clean and clear, and the **bass and treble controls** are a nice bonus for making small adjustments depending on what I'm listening to. Bluetooth 5.0 works very well with my work laptop, while I use the wired input for my main PC. Switching between the two is simple and convenient. I also really like the size. It's small enough to sit almost anywhere without taking up valuable desk space, yet it feels solid and well built. The speaker terminals are also much better than I expected at this price. For my setup, this little amplifier has completely replaced the need for a much larger stereo receiver. My plan is eventually to upgrade the amplifier and add a proper powered subwoofer, but when that happens, this BT10A won't be going to waste—it will become a perfect little amplifier for another room or for my son's setup. **Excellent value, compact, simple, and powerful enough for a serious bookshelf-speaker setup. Highly recommended.**

When I bought a new, smaller computer desk, I had to lose the large Onkyo stereo receiver I was using to connect via Bluetooth to my computer (I use Tidal for music) to feed two sets of speakers, the bookshelf speakers above my desk and a pair of outdoor speakers on the back porch. I started looking for alternatives and discovered this Fosi Audio BT10A stereo amplifier that literally fits in the palm of your hand. It's "only" 50 watts of clean power, but that's plenty to drive both sets of speakers to neighbor-annoying levels, and it sounds great! It only has outputs for a single set of speakers, so I had to add a dual zone speaker switchbox (less than $30, reviewed separately) to drive both sets of speakers. The amplifier handles either set or both at once without working up a sweat. You can get more powerful versions of this amplifier, but for $50, this unit certainly does the job I need it to do. Highly recommended!

I bought this to turn an old center channel speaker into a bluetooth speaker. The amp does a great job as an amplifier, no complaints there as there is no hiss, hum, static, or discernible distortion. Build quality / finish seems very high for the price, knobs feel fantastic and not cheap at all. Bluetooth Issues I have three different Windows 10 computers that all have the same problem with this amplifier, they connect over bluetooth, but the sound output device is unusable. I'm surprised there aren't a bunch of reviews and questions about this, but maybe I just got unlucky. I was able to find a fix, however, you must "disable Windows 10 absolute volume" (google this). After disabling that in the registry and rebooting, I was able to use the amplifier over bluetooth. My iphone and macbook work just fine out of the box. Notable mentions: - There is a tone that is played when a device connects to the amp over bluetooth. It's a very short and relatively quiet beep. My concern with this type of thing is that I'll always have it on and connected to a computer, if that computer should reboot overnight will it wake the dead? I don't think it'll be a problem. - You'll probably want the bass and treble knobs near the top center, but if those are the neutral positions, there are no detents to indicate that. - I opened it up and I can't see how they would route the audio output wires over the bluetooth antenna, so I wonder if they reworked the circuit board since the current top review calls this out. - The power supply is pretty large at around 50mm x 120mm, just as long as the amp and 2/3 as wide. - The amp is not bridgeable, so if you're looking to use this in a mono application as I am, you'll either need to sum the audio at the source or create a "mono summing cable". If your source is Windows or OSX, you can go into the accessibility settings and enable mono output for all audio. - Support: I emailed them about my bluetooth issues and they responded within 10 minutes, but their response did end up in my gmail spam folder. They were just asking for more info, but I'll see if they know about this bluetooth issue and the fix. Update: They don't seem to know about this and asked if I could provide a video showing how to fix it. I'm not going to go through the trouble of making that, so again just google "disable windows 10 absolute volume". - If you turn the amplifier off and back on, devices do not automatically reconnect over bluetooth. This may be a problem for my use case and I might have to have a script that will auto reconnect Windows to it. - AptX is not supported, but if you're buying this for critical listening you probably aren't using Bluetooth anyway. No regrets here, the sound quality with SBC is great and the quality of your source material will matter more.

Good little unit. Works as expected, no hiccups or issues, just connects and sounds good. Easy way to set up a little system for my kids with the Pioneer bookshelf speakers I had in storage. They're enjoying it.

I just fired this little guy up an hour ago. I've had a pair of older B&W 805s sitting silent for the last eight years, and they were going to go the way of Craaaagslist or use them. Had to be BT. Had to be affordable. And had to be able to drive these speakers. This is not my first Class D amp. I bought a Waaadia about 8 years ago for use with these B&Ws. I sent it back. No muscle whatsoever. It was a $900 integrated amp. I had to eat a re-stocking charge. Fine. Now, for details. The BT connection was instantaneous. The sound quality? Amazing. These B&Ws used to be my "other" speakers. I was the proud owner of tube pre-amp, a pair of tube monoblocks feeding some very large Magnapan planar speakers, plus a couple of high end CD players and custom DACS. In short, I'm an audio junkie. But, all that big stuff had to go when we moved. It felt weird designing my new home around my audio system. Poof - it all went, except for the B&W and 1200 CDs. After a couple hours of playing I decided to crank it up. I set the amp at 50%, and pushed my BT signal at 50%, then 75, then 100%. That would be louder than I ever want for normal listening. No distortion, no digital hash. I played with the bass and treble. The base is set a tad "higher" than neutral. The treble needed to be pushed to about 70% to get the high end clarity I deemed necessary. Treble at neutral was a little muddy. Then, just for fun, I backed off by BT output to 50% and cranked up the Fosi to 90%. Then I started adding more BT gain. Whoa! No distortion that I can discern. Then I started running the volume control up and down in rapid succession. No hiss, no popping and no power lag when pushed at full load. Bottom line. It's worth every penny. I just happen to have another pair of unused speakers (little baby Bose 6 inch book shelf) and I see another Fosi in my future for the garage/shop/deck and maybe some custom straps/slings to make it portable. I don't regret having spent a lot of money on my old high end audio system. I don't regret downsizing to "normal" audio gear. I do kinda feel like I just stole something though. Amazing.

What a great product. I took a couple of months to finally get around to researching the options for a wireless amp that I could mate to my old AIWA twin 40 watt speakers which I retained after throwing out the ancient triple CD player deck they came with. I first came across the Fosi (blue) mini amp which didn't have bluetooth but after a little more research found this unit which is only 10 bucks more ... as I wanted to be able to connect my phone or laptop quickly with no wires this was the best option. The device came quickly several days ahead of the original delivery estimate so that was cool, I unboxed it. Great quality you can feel the sturdiness of the metal, well crafted. The toggle switch is solid, the volume dial is smooth...though if it had a larger diameter it would allow some more volume control fidelity. Getting it up and working was a literal 4 minute affair. I connected the speakers using the twist connectors on the back, I plugged the adapter into the amp then into the wall (as they insist you do). Then powered it on...as described the blue tooth was broadcasting and my phone connected, an audible bump attends each connection disconnection. I set up the device as a trusted blue tooth on my phone which would allow it to auto connect when my phone is in proximity so I don't have to actively connect it so long as my blue tooth is on my phone which is super convenient. I started playing various audio, I played some high quality mp3's and it was great to hear those speakers come to life for the first time with a high quality amp that could push them to their limits (this amp is 50w per channel so I need to be careful). I also played some youtube videos which sound so much better coming through full powerful speakers (which I have on the ground so there is the bass effect). Edit: Since connecting my phone I also have mated the device with no issues with my laptop...as I am often at home with the laptop it serves as a better streaming source to the device ...I could in theory also use my nexus 9 for this. The sound coming from movies and videos played on youtube is rich and distinct, extremely happy with this as I am about to purchase a large HD screen that I will also be casting sound to this speaker set up through. Needless to say they just work, really great I am considering buying another one and a pair of new speakers just to use in my other room, I considered at first getting a Google chrome Audio because it allows connection through wifi but I would still have had to buy a mini amp to drive these speakers so decided to get this since blue tooth has pretty good range and often better quality than wifi (particularly as quality doesn't degrade with device connections as with this it is a dedicated connection) and like I said this version of the mini amp was only 10 bucks more than the non blue tooth version. Highly recommended.

I was looking to build a budget-friendly stereo system for my living room, and after doing some research, I decided to pair the Fosi Audio BT10A with my classic DBX speakers. This little amp is a fantastic starting point for anyone looking to get into a dedicated hi-fi setup without spending a fortune. The setup was incredibly easy. I simply connected the speaker wire to the binding posts and plugged it in. The sound it produces is clear, and it drives my DBX speakers surprisingly well. The 50W per channel is more than enough to fill the room, and the sound is rich with no noticeable hum or hiss. I particularly appreciate the Bluetooth connectivity, which makes it super easy to stream music from my phone without any extra cables. It's dedicated Bass and Treble knobs are also really nice.

wanted something with a small footprint with Bass and Treble and can use banana plugs and this was it! Very impressed with the power of this small device. I'm powering a pair of Micca OoO speakers which is connected to my PC and this is the perfect pairing. This can get pretty loud with no distortion and can easily fill a small to medium sized room. Build quality is good. All metal housing. Not super heavy but doesn't feel cheap either. There's rubber feet on the bottom which is nice. Powering on the unit is done by the main volume knob. Turn it all the way left and there is a solid click when powering off/on. The main unit displays a red led when using AUX and I think a blue led when using Bluetooth - haven't tried it yet. The power brick also has a blue led light on it. My only concern was that I noticed my speakers cutting in and out periodically and thought I got a defective unit until I realized that the housing on my banana connecters were touching each other. This was easily remedied using a small piece of rubber that I placed in between the connectors so they do not touch. After doing that, the sound was crystal clear. Would definitely recommend this.

Ich bin wirklich begeistert von dem Teil. Kompakt, super Klang, völlig problemlose Kopplung mit diversen Bluetooth Devices. Würde es unbedingt wieder kaufen.

Por el precio el sonido es excelente !

This is a very solidly built little unit. The sound is very good for something of this size and price point. The bluetooth connects seamlessly and the switch between bluetooth and standard aux input works well. The only things that I would have liked are 1) left and right speaker balance control; 2) an extra aux input. Purchasing a 3.5 Y splitter for just a couple of bucks enabled me to connect two inputs through the aux connection ..... so these are very minor criticisms. I would definitely recommend this little fellow.

Ho acquistato il Fosi Audio BT10A per dare nuova vita a una coppia di casse passive da 50W + 50W di un vecchio stereo che ormai non emetteva più alcun suono. Basandomi sulle tante recensioni positive, ho deciso di provarlo e ne sono rimasto estremamente soddisfatto. Cosa mi ha colpito di più: • Dimensioni incredibili: Quando dico che è compatto, intendo dire che occupa esattamente lo spazio del palmo di una mano. È un cubetto solido che sparisce sulla scrivania o in libreria, ma che racchiude una tecnologia sorprendente. • Qualità del suono eccellente: Il suono è pulito e cristallino. La gestione dei toni acuti e dei bassi è ottima, permettendo di personalizzare l'ascolto in base al genere musicale. • Zero rumore di fondo: Un aspetto fondamentale per me è che non emette alcun fruscio o rumore nelle casse quando il volume è attivo ma non c’è audio in riproduzione. Resta perfettamente silenzioso. • Potenza reale: Nonostante la grandezza, spinge le mie casse da 50W con una forza e una pulizia incredibili. Non fatica mai, anche a volumi sostenuti. • Affidabilità H24: Lo lascio sempre acceso giorno e notte e non ha mai dato problemi di surriscaldamento o cali di prestazione. È un mulo! Considerazioni finali: L'unica piccola mancanza è il telecomando, ma è una scelta che ho fatto consapevolmente per risparmiare sul prezzo d'acquisto. Modelli con telecomando esistono, ma costano di più, e per l'uso che ne faccio (collegamento Bluetooth rapido e set-up fisso) questo modello è assolutamente perfetto. In sintesi: Se avete delle buone casse da recuperare e non volete un amplificatore ingombrante, questo Fosi Audio è la scelta migliore che possiate fare. Qualità professionale in un formato tascabile!