Fosi Audio BT10A Bluetooth 5.0 Stereo Audio Amplifier Receiver 2 Channel Class D Mini Hi-Fi Integrated Amp for Home Passive Speakers 50W x 2 TPA3116

### ⭐⭐⭐⭐⭐ 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.**

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.

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.

As an amplifier, this little guy is great! Surprisingly clean sound and powerful to make even moderately efficient speakers sing. However, there is one glaring issue... The Bluetooth! It works with an overly simple Bluetooth configuration where there's no switch, it just accepts a Bluetooth connection and stays that way until it looses Bluetooth signal. Not very elegant, but functional in most cases. When you have more than one, it's annoying to figure out which is which. But connectivity and range are descent enough. Nothing to take a star away for. So what's the problem? Sound Quality over Bluetooth. Despite being advertised as Bluetooth 5.0, it sounds like a Bluetooth 3.0 or earlier device. Very compressed/crackly sounding top end is introduced. It's not loud, but it's there, and it very discernable in critical listening. Sound quality is FAR better when a computer, tablet, or phone is connected directly with an RCA. So if RCA performance is the priority, this is fine. BT is usable in a crunch, but you don't want it to be your main use case. I wanted this in my garage, and it became very noticble at higher volumes. At first I thought it was the amp running out of juice, but no issue over RCA. Tried multiple BT devices, same problem. Now I have an old Onkyo receiver and a separate $25 BT station from Amazon, and this sounds WAY better in the Garage, but takes FAR more space and uses more power. But I would have been satisfied as is if the BT quality were better. For a desktop computer speaker setup, or a stationary small entertainment area with TV, this is fantastic! We have one in my Son's room with some bookshelf speakers, and it's perfect. He's 4, and he can use it as just an amp no problem. Please, Fosi, get the BT SQ up to spec, and you'll have the best little amp package on the market. If this were a more expensive unit, I'd only give it 3 stars, but the bang for the buck is great. I especially like it with Bookshelf Size Speakers, just make sure there fairly efficient, unless they're really only used for quieter applications.

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 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.

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.

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.

Arrived in a fair sized box - then you open it and go 'No way'. It's tiny, maybe as big as 2 Nurofen packets on top of each other. Is this gonna make any sound at all? (I'm used to 19 inch Cambridge amps etc). Well flippin eck, it does. I was gonna use it to power the sound on my tv, a Hisense, into Gale bookshelf speakers, which can sound amazing. All you do is attach the speaker cable, then the tv and the Fosi amp found each other straight away via Bluetooth...and boom. Big sound, happily supplying the speakers with all they needed. And it sounds great! I just set the unit's volume to 12 o'clock and control the level via the tv remote, never touch it. For £60 this thing is startlingly good, and let's be honest cheap as chips.

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.

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.

Oltre lo scetticismo: un piccolo amplificatore che sorprende per timbrica e precisione Ho acquistato questo Fosi Audio BT10A dopo aver letto diverse recensioni e prove sul web, sebbene mantenessi un briciolo di scetticismo iniziale. Mi sono dovuto ricredere completamente. Il piccolo amplificatore si presenta ben costruito, con uno chassis in alluminio e connettori posteriori che accettano sia cavi spellati che spinotti a banana (anche se, date le dimensioni del cabinet, i morsetti risultano comprensibilmente un po' ravvicinati e piccoli). La vera sorpresa, però, è il suono: la timbrica è ottima, con una gamma medio-alta limpida e cristallina e bassi ben presenti e controllati, anche mantenendo i controlli di tono in posizione flat. Ottima la riserva di potenza ed eccezionale l'assenza di rumore di fondo, praticamente zero. Questo apparecchio mi ha letteralmente affascinato per la sua semplicità e la precisione d'emissione. L'ho acquistato per ridare vita a dei diffusori che avevo a prendere polvere, posizionandolo in sala per i momenti di relax dedicati sia alla musica liquida che ad altre sorgenti musicali. Sono pienamente soddisfatto dell'acquisto e lo consiglio vivamente a chiunque voglia spendere pochissimo, ma desideri un amplificatore essenziale e dalle doti sonore davvero notevoli.