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

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 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.

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.

Use this in my office, Bluetooth to my computer, through some classic Pinnacle bookshelf speakers. Works well, connects easily, and sounds good.

Update 10/30/2021: I'm going to keep my 5 star rating, but I'm getting a "drum beat" low volume sound out of all of the amps when connected to bluetooth with no volume. Customer service is working with me to resolve this (could be my WiFi AP directly above the units). Update 10/21/2021: Having used these four amps for several weeks now, there are a few little nits that have surfaced, but I still think these amps are superb. First, if you stream more than two Bluetooth sessions in to these amps that are collocated like mine, there are audio dropouts. Ultimately, it would be so much better if these could do wi-fi directly and have more flexibility to handle perhaps dozens of streams. Second, for those who want to try the Google Home Mini route, what I've found is that if you add a stream on the Home app that the two stay in sync. Adding a third set of speakers kills everything (bluetooth dropouts, and loss of sync). So, if you intend to have more than two of these in one location and need to play three or more at a time, it might require a Sonos or something similar. I really didn't need that... Original Post: I love this product. I had previously had a single zone output from my amplifier that ran four sets of speaker pairs in multiple rooms in my house. It was a pain, because I didn't want my speakers in all the rooms on, and my pushbutton switch had to be manually changed every time. So, we'd only put it on when we'd have parties. I replaced that single zone system with four of these Fosi 50 Watt amplifiers. I went a step further and paired them via Bluetooth to four Google Nest Mini speakers in each room. That way, I could stream music to each room individually from Spotify, and, I could control the music and volume remotely via Google Assistant or my phone. I can't tell a difference between these Fosi amps and my high-end amplifier/receiver except when I really crank up the volume. I could fix that with the 100 Watt Fosi amp, I think. I might just do that for my speakers out on the deck that need more volume. I have zero complaints about this product. One of the Google Nests needed to be upstairs from the Fosi, and through three walls, so Bluetooth was too unreliable to that mini speaker. So, I put the Google Mini in my equipment closet. I'm not sure what Bluetooth version this uses or what Mini uses, but perhaps a higher version of Bluetooth might make a more reliable, longer distance connection. I do have suggestions for people trying what I did. First, I can't get the audio to sync between the speakers. I've tried the Google Home app adjustments, but they only go up to 200 milliseconds, and my delays seem to be over a second. So, if synchronized audio is your requirement, then you might want to gang multiple pairs of speakers together to do so (but the drawback would be you can't individually direct a specific room to a specific source). Second, be patient while the Google Home app connects to the device. The audio settings only fully appear when the Google Nest Mini is on the same network and is fully discovered. So, you'd think that you are not going to be able to configure the Nest Mini to push it's audio out by Bluetooth, but 10 seconds later, those settings show up. My recommendation to Fosi would be to a) provide larger sizes that incorporate multiple speaker pairs to accommodate use cases like mine; b) integrate a Google Home product directly that makes the amplifier(s) directly addressable over wi-fi, Spotify, etc. (maybe even with some remote bluetooth mic to control it); and c) create a 5.1 channel solution to handle TV speakers with surround sound (I still need my amp for that, but I would love to leave a Fosi amp on all the time and not have to worry about turning my receiver off and on and having an IR amplifier to control my amp in the equipment closet. That would be the perfect solution (assuming you can deliver 5.1 channels via bluetooth). Maybe Fosi could even develop an integrated house/TV solution that makes my TV room speakers addressable via Google without my TV being on too :) Note: Yes, I do understand that Sonos and some others have products that specifically designed to do what I'm talking about. However, they have a shortage of product and it would take months to deliver, and I don't know if I could individually address each speaker pair like I can with the Google Nest Minis. In addition, I think they are way overpriced. It would have cost me $3,300 to do what I did for $300 here. I'm sure that Sonos has tackled the synchronization problem with their solution, but at this point, synchronized audio is not a $3000 problem for me.

Another good Fosi product. It has a solid metal build with good weight to it with an appropriately sized power supply to keep the sound powerful and consistent. Connects to Bluetooth quickly and automatically selects the source - aux connection overrides and turns off Bluetooth. Paired with two 30w bookshelf speakers, the sound is clear and powerful right up to 70-80 percent on the volume. Ideally I should be using higher wattage speakers.

I recently picked up the Fosi BT10A, and wow—this little amp completely exceeded my expectations! I dusted off a pair of older Klipsch R-15M bookshelf speakers from the basement and hooked them up to my PC. Since they’re passive speakers, I needed an amp, and this one was perfect—especially with the 3.5mm input for easy PC connection. Setup took just minutes: plug it in, connect the speakers and cable, and you’re ready to go. The sound is huge—clear, clean, and powerful enough to drive the R-15Ms beautifully. For such a compact and affordable amp, this thing is an absolute gem. Highly recommend!

We used this great little box to replace a broken home stereo. Works perfect for what we needed. Pros: The sound is perfect for streaming movies, podcasts, talk radio, and background music. The blue tooth connection is nice so any of us can connect to it from our devices. Having treble and bass settings gives us the sound we want to hear. The connectors at the back handle bare wires easily. No need to get special connectors. Cons: The blue tooth connection is automatic. It means that if we want to play a movie from the computer which is direct connected, we have to all turn off blue tooth from our devices. I don't think this device is for anyone who wants to really play quality music at any decent volume. E.g. my daughter plays the Attack on Titan theme songs a lot, which is like playing 2 symphonies and Rush at the same time, and with so much going on, the music becomes indecipherable. It could be my speakers, but there was nothing I could to make the music sound crisp. Other reviews might help to straighten this out. I wish I didn't buy special connectors. :-/

Heel erg mooie versterker, straalt kwaliteit uit en krijgt goede reviews. Ik gebruik 'm puur als bluetooth ontvanger met bijbehorende versterker functie. Werkt heel goed, koppelt vlot met de BT bron. Is een onwaarschijnlijk kleine behuizing maar produceert een goed geluid. Doet alles volgens specificatie - als je meer power nodig hebt is er een een 20W versie, maar die is natuurlijk duurder!

Por el precio el sonido es excelente !

Wzmacniacz spełnia moje oczekiwania. Połączenie Bluetooth bez problemu. Jakość sygnału bardzo dobra jak na tej klasy sprzęt. Pracuje z moimi starymi kolumnami 70W /6 Ohm. Zalecam zastosowanie wtyczek do gniazd po stronie wzmacniacza, gdyż jest trochę mało miejsca na grubsze kable głośnikowe, gdy przyłączamy na zakręcane zaciski. Przesyłka dotarła bardzo szybko.

Compré este amplificador tipo D después de analizar otras opciones que únicamente eran una placa sin cerrar. De momento, no me arrepiento para nada ya que tiene una muy buena calidad de audio Bluetooth, sin cortes, y son perfectos para complementar los Polk Audio Monitor 30 que compré de segunda mano. Por menos de 90€, incluyendo 3m de cable OF de 1,5mm de diámetro, tengo un equipo perfecto para escuchar todo tipo de música.