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Fosi Audio

Fosi Audio BL20A 200W Bluetooth 5.0 Home Audio Stereo Amplifier Hi-Fi Mini Class D Integrated Amp with U-Disk/3.5MM AUX/RCA Input and Remote Control for Home Passive Speakers with Power Supply

    • Based on 353 reviews
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$79.99 Why this price?

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Availability: In Stock.
Fulfilled by Amazon
Arrives Saturday, Nov 23
Order within 13 hours and 23 minutes
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Features

  • Fosi Audio BL20A 2.1 channel Bluetooth 5.0 power amplifier can drive most home passive/powered/bookshelf/ceiling speakers. With 3.5MM AUX output, BL20A can connect to passive speakers and powered speakers simultaneously. Or you can connect to an preamp through the 3.5MM output to build a simple sound system.
  • 3 Input Modes: BL20A support Bluetooth, RCA, U-Disks and 3.5MM AUX input with bass, treble, volume and remote control, compatible with most latest device. Utilizes Bluetooth 5.0 technology for seamless device linking and a 50ft connection range. A new generation class D amplifier give you the ultimate Hi-Fi music experience.
  • BL20A Adopt 2PCS Texas Instruments TPA3116 poewr amplifier chips digital amplifier power stage for driving speakers up to 100W / 2 in mono channel, MAX power output up to 200Watts. The TPA3116 are fully protected against faults with short-circuit protection and thermal protection as well as overvoltage, undervoltage, and DC protection. Faults are reported back to the processor to prevent devices from being damaged during overload conditions PCB to be used across different power levels.
  • Mini and Elegant Design: Small and compact aluminum alloy body(Size: 5.2x3.54x1.42 inches), easy to set up, this audio component amplifier is a great choice to your home audio stereo systems.
  • What you Get: BL20A Power Amplifier x1, Power Adapter x1, AC Cord x1, User Manual x1, 18-month worry-free warranty, and friendly customer service.

Description

Our Story Fosi Audio was founded with a simple goal: Build products that sound great and make people want to listen to music every day. We design, manufacture, and sell many Hi-Fi audio products on the market. We pursue your perfect music journey. Enjoy Hi-Fi music with Fosi Audio audio products NOW! Mini Bluetooth 5.0 Power Amplifier Product Parameters: Input: Bluetooth/3.5MM AUX/U-Disk Output: Passive Speaker Output + 3.5MM AUX Pre-out (Passive Speakers, Powered Speakers or subwoofer, Power Amplifier) SNR: ≥ 92dB, THD: ≤ 0.001% DC Input Range: DC 12-24V U-Disk Capacity: MAX 32GB Support Format: MP3/WMA/APE/ FLAC/WAV Max Power Output: 100watt ×2 2 Channel Power Amp: BT10A, BT20A, TB10A, TB10D, V1.0G, TDA7498E, ZK-1002, ZK-502T. 2.1 Channel Power Amp: BT30A, BT30D, BT30D Pro, BL20A, BL20C, ZK-TB21. DAC: Q4. DAC Amplifier: DA2120A, DA2120C. Subwoofer Amp: TP-02, M01-BT, M02, M03, M04. Phono Preamp: BOX X1, Box X2, BOX X3, BOX X4. Tube Preamp: P1. Tube Headphone Amplifier: T20, T20X, P2. Read more U-Disks Playback Support MP3/WMA/APE/FLAC/WAV and other lossless audio formats, U disk capacity up to 32GB. The sound quality is pure, clear, and delicate. Plug and play at any time to enjoy the solid and non-destructive sound quality. Individual Adjustment of Treble and Bass BL20A Bluetooth 5.0 stereo amplifier supports MP3/WMA/APE/FLAC/WAV and other lossless audio formats, U-disk's capacity is up to 32GB. The sound quality is pure, clear, and delicate. Plug and play at any time to enjoy the solid and non-destructive sound quality. 3.5MM AUX INPUT and PRE-OUT BL20A can connect to passive speakers by banana plugs or a bare wire. Meanwhile, you can connect to power speakers or subwoofer, a power amplifier by 3.5MM AUX PRE-OUT, easy to build your home audio system. Read more Adopting 2PCS T1 TPA3116 Chips High-performance Texas Instruments (TI) TPA3116D2 chip presents exciting sound effects. The essence of the sound is truly restored, resulting in extraordinary clarity. Multiple Input Modes A variety of input and output modes and application scenarios are even more different, and remote control is also included to meet your remote operation. Upgraded DC Outlet The old version or other brand amplifiers sparks flying when the power supply plugin, it's unsafe. With a built-in power protection circuit, there are no sparks flying when you plug the power adapter into the amplifier. Safe for use! Read more BL20A BL20C BT30A BT30D DA2120A T3 Type Bluetooth 2.1 CH Amp with Remote Control Bluetooth 2.1 CH Amp Bluetooth 2.1 CH Amp Bluetooth 2.1 CH Amp Bluetooth DAC 2.1 CH Amp with Remote Control Bluetooth Tube 2.1 CH Amp MAX Power Output 100W x 2 160W x 2 50W x 2+100W 50W x 2+100W 50W x 2 50W x 2 Input Bluetooth + 3.5mm AUX + U-disk Bluetooth + RCA + U-disk Bluetooth + RCA Bluetooth + RCA Bluetooth 5.0 + 3.5mm AUX + PC-USB + Optical + Coaxial Bluetooth + 3.5mm AUX1+3.5mm AUX2 Output Passive Speakers + Active Speakers/Amplifier/Active Subwoofer Passive Speakers + Active Subwoofer Passive Speakers + Passive Subwoofer Passive Speakers+Active/Passive Subwoofer Passive Speakers + Active Subwoofer Passive Speakers + Active Subwoofer+ Headphone Treble & Bass Control ✓ ✓ ✓ ✓ ✓ ✓ THD ≤ 0.001% ≤ 0.05% ≤ 0.04% ≤ 0.04% ≤0.01% ≤ 0.1% SNR ≥ 92dB ≥ 98dB ≥ 98dB ≥ 98dB ≥105dB ≥ 80dB Terminating Impedance 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 2-8 Ohm 4-8 Ohm Power Adapter 24V/4.5A 24V/4.5A 24V/4.5A 24V/4.5A 24V/4.5A - Work Voltage AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V AC 110V - 240V


Product Dimensions: 4.72 x 3.54 x 1.18 inches


Item Weight: 1.94 pounds


Item model number: bl20a-1


Date First Available: March 6, 2019


Manufacturer: Fosi Audio


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Nov 23

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Decent low cost amplifier with Bluetooth and Aux input.
I use this to drive a pair of Infinity 6*9 inch speakers on my patio. It is small and light and easy to bring out when I want to use it. I leave the speakers and speaker wires on the patio. The amp pairs quickly to my iPhone for my music source. The range is very good. The volume with those speakers is very good, exceeding what I am comfortable to play given that I have neighbors. At loud levels I don't hear objectionable clipping or dropout. I am happy with my purchase and would buy again if needed. Paul ... show more
Reviewed in the United States on October 19, 2022 by Paul J.
    • Great value in a small package.
I bought this to have stereo in my shop. Have a pair of Sony SSCS-5 speakers and a cheap no name powered subwoofer. For just two channel music listening I think this sounds better than my Denon/Klipsch setup in the house! Only reason I gave it 4 stars was I do not know how reliable it is as mine is only a month old. ... show more
Reviewed in the United States on October 23, 2022 by Randall Landry
    • Like a mini replacement for a reveiver
I had some spare speakers that were previously connected to a receiver. This worked perfectly to power them and connect to the phone via Bluetooth. I'm using it for occasional outdoor music and taking it in when done. I connected two speakers to each channel using sewell ocelot banana plugs for quick disconnect and daisy chaining the speakers. The 4 speakers are rated 130w max and 8 ohms. Volume is loud and sound quality is excellent. This was the perfect solution to Bluetooth connectivity and easy setup and take down. ... show more
Reviewed in the United States on October 11, 2022 by Ashley
    • Fantastic little BT amp
Very pleased with this unit. I use with two small speakers and an active subwoofer. Powerful, clear, easy BT operation.
Reviewed in the United States on October 16, 2022 by Jay
    • Amazing little amp!
Review Image by JeRom
Review Image by JeRom
Excellent amp! We hooked it up to a mixer that brings audio from a variety of sources, including Alexa, phono record player, music instruments (drums, guitar, keyboard, mic), our home theater and miriads of personal devices via Bluetooth. I am genuinely surprised at the quality of this amp! Regardless of the sources it does very good job and helps my good 125w speakers sound really great. Because my speakers' impedance is 8 Om the amp power output is somewhere around 50W, as I understand, not full capacity, but this is plenty for my living room. I liked it so much, I even bought a second amp by FOSI, a different model, for my children. There are couple of things I would consider before you buy this model: 1) do you intend to use it with a separate subwoofer? If not, you might want to find a different FOSI amp that doesn't have subwoofer outlet and 2 extra controls (that means less knob controls to mess with). 2) If you plan to switch between devices via Bluetooth often, say you have many family members who are going to hook their phones up to showcase something like the newest single of Tones and I - Dance Monkey, then you might want to look for another model, because this amp doesn't have a dedicated switch for the Bluetooth and you will have to interrogate everyone in your house, trying to figure out what device was last connected to the amp. If you don't find that last device and disconnect from it, you won't be able to connect yours. There is no way to turn off Bluetooth on this amp without switching the power off, but that won't help, because your last connected device will automatically connect and you are back in the interrogation room. 3) Volume control knob. It is very small and too close to other controls. Not a problem for me, because I can control through mixer. Those of you not blessed with very delicate fingers - you will struggle with the volume control. 4) I am not sure if this is my problem or the amp or Google's, but I could not figure out how to connect Google Mini to the amp via Bluetooth. It seems like Google Mini does not want to add amp as a Bluetooth device even though it sees the connection. Just FYI. 5) no DAC technology. I don't know if this is very important for you. I guess if you are going to listen to inadequate quality mp3 files, you might need digital to analog conversion to improve sound quality, but who does it these days anyway, use streaming music in high quality compression and delete those old files. Otherwise, it is a great little amp that I never turn off, so I can communicate with artaficial intelgence (Alexa) and let the music fill the room on voice request. ... show more
Reviewed in the United States on March 13, 2020 by JeRom
    • Great Setup for the CrossFit gym I coach--Mini muscle amp 2 month update
The building we coach at is in a large open air warehouse made of brick, heavy steel doors, and a roll up bay door. I'm not sure square footage, but the roof is about 20 feet up. The point is this little unit produces loud enough sound for the athletes we are coaching. I had an old 10"sub-woofer from my high school days (18 years ago) that I just took the amp off of and directly connected--It booms throughout this space. The old setup was a Pyle 2 channel at 75 RMS, and had deep issues with losing bluetooth connectivity, and the speakers sound would crackle at high volumes. I don't recommend any Pyle amps because of the BT issues they have. This thing is super simple at setting up bluetooth, the manual doesn't say, but once you turn on power it takes a few seconds to send out a bluetooth signal labeled "Bluetooth Audio" and the code, if necessary is 0000 or 1234. The main thing with this bluetooth is that it is 5.0 and instantly and steadily holds your connection, even with older bluetooth standard devices. There is no awkward waiting, and when you are coaching an hour class those seconds count. Control knobs are great for this since you can independently control Bass/Treble (for the full-range speakers) and Bass volume/frequency for the subwoofer. I think the volume could be more, but like I said for this environment of at least a 25 meter L X 25 meter W X 7 meter H this is good enough for a "turn the music up and workout" environment. I used banana clips for all of my connections and didn't have any sparking issues. I did have the power cord connected to the amp before I plugged in the plug. The gym is open air, and does get quite humid, but I've had this installed for at least 2 months without issue. The other coaches were about at their wits end with the old bluetooth 2 pyle device we had. So I know what you're thinking, do I take a risk with this little foreign made amp or not. This is everything you need, just get an enclosed sub-woofer and a couple of correctly ohm-rated Full-range speakers and this will be perfect for you. I could see this being used at home in a garage gym or main room. ... show more
Reviewed in the United States on January 16, 2020 by ckatech

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