Customers say
Customers find the amplifier provides plenty of sound with no amplifier noise or hum, and works effectively up to 50 yards with various devices. They appreciate its compact size, ease of setup, and value for money, with one customer noting it’s powerful enough to power bookshelf speakers. The Bluetooth connectivity receives mixed feedback – while some praise its connectivity, others report limited range and random disconnections. The build quality also gets mixed reviews, with some finding it good while others report it breaking after few uses.
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Your Sales Price $42.89 - $26.99
A quick rundown of this product’s key features:
【Upgraded Chip for Higher Output Power】– Here is Facmogu’s new power amplifier in 2023. Based on the previous design, we enhanced its output power while still keeping its mini compact size and sleek appearance. The NEW F900S Bluetooth Amplifier provides 80W+80W dual channel stereo output with the Upgraded Chip TPA3116, which is more powerful! Impedance: 4~8 Ohm.
【Truly Amplified Your Music Experience】– This little powerhouse delivers crystal-clear stereo sound that belies its size. The 80W×2 channels fill your space with rich, high-fidelity tunes, effortlessly streaming via Bluetooth from devices or connected through the handy AUX/USB inputs. Don’t let its size fool you. It has a high quality feel and sounds wonderful. The small size means you can tuck it right under one monitor, leaving the volume control handy and taking no desk space.
【User-friendly 3 Inputs Optional】– With Bluetooth 5.0 / USB / 3.5mm AUX audio cable input, compatible with most common audio device such as phone, tablet, computer, TV, CD player, etc. Bluetooth 5.0 wireless input achieves faster and more stable transmission, USB input plug and play, no need for any driver. The connectors on the back work with both spliced cables or banana plugs. Equipped with complete accessories, you can enjoy its powerful function at once when you receive it.
【Warming NOTES】– This Amplifier is NOT COMPATIBLE a range of products launched by Amazon such as Echo, Alexa ect. (Please Kindly Notice that the Mode changes are accompanied by default “USB mode” or “Bluetooth mode” announcement via the speakers. Also, regarding the power-on sound of the amplifier, we cannot revise the program at present, hopefully you could forgive us!)
【Packing Included】– 1 x F900S Amplifier, 1 x DC12V 5A Power Adapter, 1 x USB Cable, 1 x 3.5mm AUX Cable, 1 x RCA to 3.5mm AUX Cable.
Our Top Reviews
Reviewer: Joe Cogan
Rating: 5.0 out of 5 stars
Title: Works perfectly as part of a whole house solution!
Review: I have a very specific use case (whole house audio) but wow… I’m very impressed! Here’s my take on how I’m using it…Whole House Audio Project:We build our house about 11 years ago and wired it for 12 zones of audio. I have 4-wire speaker cable and CAT-5e network cable running from a central location in the basement to a single gang box in each room. Then, from the gang box, I have speaker wires running to the ceiling locations.In the 11 years we’ve been here, we never pulled the trigger to purchase the “traditional” system (multi-channel amps, in wall controllers, speakers, etc.) We’ve been quoted well over $10,000 for all 12 zones in the past. Even a DIY solution online would run nearly $4,000 without the speakers (HTD Audio’s Lync system with keypads.) That’s just not worth it to me.Being a Google fan, I set out to build a system using Google’s Chromecast Audio devices, amplifiers, and in-ceiling speakers. I ended up purchasing this Mo-gu F900 amp for each zone in the house and it’s been working perfectly! I’m at about $139 per zone and absolutely loving it!I can stream to each zone (from Pandora, Spotify, Google Play Music, I Heart Radio, podcasts, etc.) and control it from an iOS device, Android device, computer, Google Home, etc. I can have different sources streaming to different zones or group any zones together. It’s incredibly flexible and easy to use.Here’s the setup (per zone):1. Google Chromecast Audio ($35)2. Mo-gu F900 Amplifier ($31.99)3. 82C 8-Inch In-Ceiling Speakers ($35.98 each, $72/pair – Available here on Amazon)And here’s the installation details:1. Install the in-ceiling speakers.2. At the gang box, connect the speaker wires running to the ceiling to the 4-wire speaker wires running to the basement3. In the basement, connect the 4-wire speaker wires to the F900 (and plug in the F900 with the included power supply).4. Also in the basement, connect the Chromecast Audio device to the 1/8″ jack on the F900. Plug in and configure the Chromecast Audio.5. Turn the F900 on and set the volume knob about half way up. You can use the Google Home app to adjust the final volume of course.6. In Google Home, select the Chromecast Audio device and edit the settings. Make sure you name it to the room it’s located in. Also, adjust the treble and bass settings. I put both up almost all the way. The F900 can handle the wide frequency range very well. (YMMV of course so set it to your taste!)7. Also in Google Home, set up your groups (ie: Whole house, Downstairs, Bedrooms only, etc.) You can create as many groups as you like!8. Using an iOS, Android, or Google Home device, cast a source to the room and enjoy!Pros of the F900:* Powerful – It’s driving the 8″ speakers a lot better than I thought it would. Even over a long distance (>60 ft). Just make sure you use the proper gauge speaker wire if you have long distances.* Clean – We’re not talking audiophile quality here but I was pleasantly surprised on how good this amp sounds.* Simple – It’s a “set it and forget it” device in my solution. I plan on keeping it on all the time and I’m not too worried about it!Cons of the F900:* Size – It’s actually a lot smaller than I thought it would be. Not really a bad thing but it was surprising.* Build Quality – The build quality is actually very good but the front sticker was applied a bit askew. Not a big deal though.* Hiss – When there is no audio playing, there’s a VERY SLIGHT hiss that you can hear at the speaker. I mean, VERY, VERY SLIGHT. (I only heard it when I was on the ladder putting on the speaker grills. I had to have my ear closer than 12 inches away just to hear it. I can’t hear it at standing height.Well, that’s it. My cheap whole house audio solution is complete and a lot more flexible than I could have expected. Grand total for all 12 zones was approximately $1,670 (not including the speaker wire). The real beauty is that you don’t have to do all of your zones at once. You can build it out zone by zone. (That definitely helps when you have to get spousal approval!)Hope this review helps!
Reviewer: Joel Adams
Rating: 5.0 out of 5 stars
Title: I liked it so much I bought another one!
Review: I purchased this amp (and a pair Dual LU53PW 5 ¼ inch passive speakers) to replace my 15 yr. old Sharper Image wireless speaker system. The input to that setup was an 1/8 plug that went into the headphone jack of my phone. I wanted a Bluetooth amp and did not want to spend a ton of money for a garage stereo. My total was less than $100 (I already had 20′ of speaker wire.)I mounted both the amp and the speakers to permanent shelves I built. It sounds great! The power supply that comes with it is 12 volts. You can use a PS that supplies up to 24 volts, but I don’t think I need that, this is only a garage. If you think you want to have greater volume, the power input jack is a 5.5 mm * 2.1 mm if you’re checking out other power supplies (you can purchase this amp without a power supply.)Once paired, as soon as I turn it on, it connects to my phone. If you have a lot of your own music on your phone, use the android app Poweramp to play your music. You can fine tune the sound, balance and other stuff with that app then save those setting as a preset. You then associate that preset with that particular Bluetooth connection. When I use Poweramp in my garage, the preset is automatically used (I like a lot of bass.) Pay the $5 for this awesome music app.The second one I purchased is for my covered deck. Since this is outside, I had to change speakers (the Dual speakers had reviews that say they rust when used outside.) I purchased Moukey M20-2 Passive speakers in black (my deck is stained black.) I also purchased a Sunnyglade ABS Plastic Dustproof Waterproof IP65 Junction Box Universal Durable Electrical Project Enclosure With Lock (3.9″x5.9″x2.8″) in which to place the amp.I had replaced a switched, hardwired lighting system on my deck with wireless LED lights so I had a spare 120v A/C wired connection in the corner of my deck. I ran that connection into a single receptacle that is now used for my second amp. I bought the PS with the amp again, and I plugged that into the switched outlet. The DC power wire from that is run to the waterproof box. So are the wires that are connected to the speakers (see pic #4). All wires are run through automotive electrical grommets purchased locally. The electrical switch and waterproof 2 gang cover were also locally purchased (the price was the same between Lowes and Amazon.) The total cost for the deck sound system was a little over $100, as I had to buy wire, too (100′ 16 gauge landscape wire from Lowes was the least expensive.)Please note that there are 3 versions of this amp. This one has a slide switch for on/off. The other two look like momentary switches and would likely not work for my deck, as I remove power from the device by cutting off the source.Since I live in a subdivision, I do not want to disturb my neighbors. The preset I saved for the deck in Poweramp has less bass so I don’t really push the Moukey speakers like I do the Duals in the garage. Both speaker sets are good for their intended purpose/space.In hindsight, I should have bought the next size up for the Sunnyglade box. Everything fits, but it’s kind of tight. I took a piece of oak to form a stand to hold the amp in place, but if you just stuff it into the 3.9″x5.9″x2.8″ box without something to hold it in place, the volume button may get turned a bit when you close the box.If your going to match the radius of the curved sides of the amp, a 7/8″ spade bit matches perfectly. Also, I painted everything to match either my house color or color coordinate to the Bluetooth items on the deck.
Reviewer: CM
Rating: 4.0 out of 5 stars
Title: Just seems to work – very little hassle
Review: I got the 80w version and I’m driving two 150w speakers, so the volume is not crazy loud, but don’t need it to be. The 100w version likely would be a better choice, but this meets my needs.Connecting to BT was pretty simple. Simpler than getting my FitBit connected.The BT range, however, isn’t super great. 20 feet away on the other side of a cinder block wall pretty much kills the connection. If I’m back sooner than later, it auto-reconnects, otherwise, I need to manually reconnect.I’ve only used the BT feature.
Reviewer: Oscar
Rating: 5.0 out of 5 stars
Title: Very powerful for size. Great troubleshooting tool.
Review: I bought a house with outdoor speakers running back inside to the surround sound system behind the tv. The home inspection said the system was bad. I purchased a receiver and of course they didn’t work. I purchased this mini amp and starting at the speakers worked my way backwards to find the bad component. Ordered a new volume knob and we are back in action. This mini amp will probably get added to my side by side. It is surprising powerful for the size.
Reviewer: josue vega
Rating: 5.0 out of 5 stars
Title: NA
Review: NA
Reviewer: Tune Chien Jung
Rating: 5.0 out of 5 stars
Title:
Review: I wasn’t expecting much for this tiny device. But I was surprised it could drive a pair of 100W speakers with just a 19V 4A laptop charger (I did not use the included power adapter), of course to just maybe half loudness. It fits perfectly for my office use where I need clarity for teleconferencing, music, at the near field and not at loud noise levels. I can not detect any hissing, static, or weird noises from my speakers from using this device, but I have not stress-tested it at max power yet. Music just sounds nice coming out of this setup, not any lesser than another setup I have using a Sonos Connect:Amp.
Reviewer: Joel John
Rating: 5.0 out of 5 stars
Title:
Review: Completely blown away by this little amp. It’s unbelievable to see a tiny form factor amp deliver sound of a hifi big amp. I was able to setup in no time. Tested with my Wharfedale tower 6 ohm speakers.Sound is really lound and punchy. No humming, No hissing. Quick to connect to Bluetooth. Overall well pleased by the purchase. Truly hope this amp lasts long.
Reviewer: Arturo Mosqueira
Rating: 5.0 out of 5 stars
Title:
Review: Excelente opción como amplificador miniatura, tiene bastante potencia out of the box. En el vídeo que les muestro está al 40% y se escucha bastante, lo uso para oficina, obviamente debe ir con unas buenas bocinas y especificacion de DB decente, estás bocinas son de 90 y son de 8ohms@120watts.Les va a fascinar.
Reviewer: Kipitech
Rating: 5.0 out of 5 stars
Title:
Review: Excelente producto, lo conecte a dos marcas diferentes de bocinas y sin problema las levanta (60W IEC-120W PEAK).
Price effective as of Jun 30, 2025 04:29:29 UTC
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