Name: 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)
Brand: Fosi Audio
SKU: 899202121
Price: 79.99 USD
Availability: InStock
Rating: 5 (8 reviews)

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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)

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)

Width

Edition

Color

Weight

Simple compact design but practical and powerful, little Hi-Fi Bluetooth wireless amplifier exclusively designed for the customers who pursue HiFi sound. Bluetooth 5.0 core, up to 50ft connection range guarantees low signal delay. No pop, no audible noise when Bluetooth connection is established. BT20A Bluetooth stereo receiver amplifier adopts 2PCS Texas Instruments TPA3116D2 chip. The TPA3116D2 are stereo efficient and digital amplifier power stage for driving speakers, with advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences. 100W RMS X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), comes with a 24V power supply, can drive 280watts(8 ohms), 320watts(4 ohms) speakers.(for passive speakers only, not the powered speakers). Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home.

Manufacturer Part Number

Assembled Product Weight

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Simple compact design but practical and powerful, little Hi-Fi Bluetooth wireless amplifier exclusively designed for the customers who pursue HiFi sound.
Bluetooth 5.0 core, up to 50ft connection range guarantees low signal delay. No pop, no audible noise when Bluetooth connection is established.
BT20A Bluetooth stereo receiver amplifier adopts 2PCS Texas Instruments TPA3116D2 chip. The TPA3116D2 are stereo efficient and digital amplifier power stage for driving speakers, with advanced oscillator/PLL circuit employs a multiple switching frequency option to avoid AM interferences.
100W RMS X 2(4 ohms, 20 Hz - 20 kHz, 0.04% THD), comes with a 24V power supply, can drive 280watts(8 ohms), 320watts(4 ohms) speakers.(for passive speakers only, not the powered speakers).
Advanced circuitry design, built-in speakers protection circuit, best for bookshelf/computer/desktop/speakers in your home.

Sound

Bluetooth

Quality

"I couldn't be more happy with this little amp (Fosi BT20A).
I had this idea to hide speakers above our kitchen cabinets, and then to have an amp mounted under the cabinet which can be directly connected to, or connected through bluetooth to play music. I ended up pairing this amp with Micca OoO 3.5 inch 2-way speakers, since I wanted smaller speakers to not stick up and be seen above my cabinets. This amp/speaker combination exceeds my expectations.
Here's my notes of important issues that may interest people:

* I've read all the existing Amazon comments already, but I did not experience any of the bad issues mentioned.
There is no ""pop"" when I turn on the amp, or when I switch tracks, and also there is no ""hiss"" coming from the speakers at any time.
* I have cranked the volume for long periods of time and there was no distortion of sound from increasing the bass or treble.
* I can't really detect any difference in sound between playing music with a direct connection, or a Blue Tooth connection with my iPhone 5S.
* The 3 control knobs feel solid/high quality, and I love the bass and treble response.
* In general, I always just have the volume on my iPhone ""two clicks"" from the highest volume setting, and the volume on the amp is always at about 50% (knob straight up). I then can decrease the volume on the amp to ~30%, or increase the volume on the amp up to 75%, which is really loud!

I have to say, that before I placed my order, I was hesitant because of some of the negative reviews, but it seemed like the best solution for me. There were other decent small amps that could be mounted under a cabinet, but they were only 50W, and this one is 100W. But now that I have it, I honestly feel that the people in the comments who had issues had a defective amp...or else I just got really lucky. I just wanted to report my own experience with this item as it was really good. I'm very satisfied with the performance of the amp (volume, bass, treble, bluetooth range and behavior, overall quality)."

Excellent small amp!

"I've been looking for reasonable solution to powering the outdoor speakers that the previous owner had installed. They were a sound technician and wired the whole house but it was very early 2000's tech (definitely pre-Bluetooth) and all to a single media hub on the opposite side of the house.
I've never had the time or energy to invest in figuring out what the best set up was to power them from the opposite side of the house and still control media and I've looked into a lot of options but none seemed to be as minimalistic as I need, cost a ridiculous amount, etc.
Then this came across my random suggested items and I looked at the different levels/costs and what they did and this was perfect.
I've only just installed it (and will come up with a more permanent perch for it), but it was very quick and easy to hook up and pair. At only a quarter volume it's almost loud enough to bother my neighbors and I can hear it over the traffic behind my house (I back up to a road)! So I'm sure that they will be plenty sufficient for my needs and more so. Again, only 30 minutes after installation, but I am impressed with the sound quality, the seemingly simple and sturdy construction, and the super small footprint."

Great sound, small footprint!

"I decided to buy this mini-amp after looking at online reviews and seeing that it was The Wirecutter's top pick. This little dynamo amazes me every time I switch it on. Home audio amps are supposed to weigh 30 pounds and heat up like a furnace when you push them. How then, _HOW_ does something the size and weight of a paperback book crank out such power and keep its cool? I should just stop asking because has filled my little house with amazing sound.

I got this mini-amp to build a cheap audio system to replace a soundbar-subwoofer setup and haven't looked back. The 5.0 Bluetooth connects right every time. Wired and wireless connections work like they are supposed to. Music and movies sound amazing through this thing. It drives a pair of 8 ohm Klipsch RP-150s and an Elac powered sub easily.

But the claim that this is a 200 watt amp is ridiculous. The power to the unit is 24V at 4.5 amps, which just would just about clear 100 watts. But who cares -- it has power to spare. I have yet to turn the volume knob past 50%, and it gets beastly loud."

Powered by black magic or something

"I recently decided that my JM Lab Bookshelf Speakers were too good for just surround rear speakers so opted to put them in my office. I wanted a small footprint amplifier and based on reviews selected this unit. I had toyed with the idea of purchasing the PS Audio Sprout but as I don't use Vinyl and already had a good DAC it seemed overkill. I have a Meridian Explorer II DAC and use Tidal to stream uncompressed and MQA music. When I hooked the DAC to the input and turned on the music I found that the audio quality and richness was better than I had expected.

I did find a little noise on one of the Bluetooth Channels when the volume is turned up but that is not a major issue for me as I only use Bluetooth for internet radio as background when I am working."

Great Amplifier for my Office

Sounds great wired or with a WiFi streaming adapter. Bluetooth sound quality is typical and noticeably lower but works well. It's not an expensive class A or extremely loud amp but mine is pushing 8ohm Polk monitors and the sound quality and volume is very impressive. I could only imagine how much better it would perform if my speakers were 2 or 4 ohms as the amps claims to handle. This amp can push most small bookshelf speakers hard or larger monitors very well, both without noticeable distortion. Remember the input from your pre-amp makes a big difference. If it doesn't sound right try a different pre-amp or Bluetooth source. I don't think you could buy a better amp within this price range.

Sounds great and plenty volume for such a small in

While this isn't an audiophile quality amp, for its price, and small footprint, it exceeds my expectations. This replaced a 90's era JVC receiver I'd been using in my wood shop for music. I was hesitant to buy this because of its size but, after reading all of the great reviews I pulled the trigger. The sound quality is excellent for the lower end speakers it's driving. The Bluetooth range is great as well, and it hasn't failed connecting with my iPhone 7. Since I've only been using this for a month or so, I can't comment on it's longevity but will update as needed. There are two things that would make this an outstanding amplifier: 1. It will not automatically connect to Bluetooth so, each time I come back into range I've got to go to the Bluetooth settings and select it. 2. It would really be great if this came in a 4-channel version. If you need an amp that performs well, you won't be disappointed with this one

Excellent Little Amplifier

I have a small condo that lacks a place for a standard stereo receiver. This unit is really small and I can put it on a cabinet and hide it behind a photograph frame. I put my old JBL bookshelf speakers are on the floor (probably not ideal) next to the cabinet where they not so noticeable. I play music via Bluetooth from my phone. I just leave the amp on and connect when I want music. The sound is plenty loud for my small place. The only thing missing perhaps is a control to balance between the left and right channels. The price is very reasonable. I would definitely recommend this little amp.

Just what I needed

I was a bit skeptical when I ordered this but gave it a try after reading the reviews. I had some Bose 301s sitting in the living room and my old receiver finally quit. I placed a shelf on the wall in the living room and separated the speakers by the appropriate amount with plenty of room between the speaker and the wall. After first plugging them in, it was easy to find the Bluetooth on my apple phone and I started pushing music. I was incredibly disappointed with the filthy sound coming out believed that I would likely be returning it. I decided to give it another chance and pulled the wires from my old receiver in order to try another connection. The sound was clean and impressive for this diminutive device sitting on the shelf between family pictures and two large speakers. I don't know if they drive 100 wats but they definitely exceed 50-60 per channel. If I were you, I would likely consider the amps without a Bluetooth and buy without hesitation if you are looking for a small amp to push speakers as large as a Bose 301. I'm ok with plugging in one of my mobile devices in order to hear clean tunes.

impressive when plugged in

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)

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2-in-1 Bluetooth 5.0 Transmitter Receiver, Adaptive, ORIA Portable Wireless Bluetooth Adapter Bluetooth Transmitter Device for Home/CD/MP3/Speaker Audio Stereo, Black