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Fosi Audio

Fosi Audio V1.0G 2 Channel Class D Mini Stereo Amplifier for Home Speakers TPA3116 50W x 2 with Power Supply

    • Based on 1,181 reviews
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This item's return window has been extended for the holiday season: Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Monday, Nov 25
Order within 4 hours and 50 minutes
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Features

  • Fosi Audio V1.0G mini stereo amplifier includes highly efficient, fully integrated, digital, class D audio amplifier ICs based on NEW amplifier technology, supporting a supply voltage range from 12 V to 24 V, allowing it to be used across home and professional audio applications
  • V1.0G 2-channel class D amplifier adopts Texas Instruments TPA3116D2 chip. The TPA3116D2 is a stereo-efficient and digital amplifier power stage for driving speakers, with an advanced oscillator/PLL circuit that employs multiple switching frequency options to avoid AM interferences. High performance effectively improves output power and audio quality
  • Advanced circuitry design, built-in speakers protection circuit, solid aluminum chassis, the home Hi-Fi integrated amplifier create clear and clarity sound, no audible noise, dead silent when nothing is playing through it
  • V1.0G stereo audio amplifier with very low power loss under all operating conditions. The ultrahigh power efficiency and cool operation make the V1.0G suitable for use in home audio systems
  • What You Get: V1.0B home integrated amplifier x1, power adapter x1, AC cord x1, user manual x1

Item dimensions L x W x H: 5 x 3 x 1 inches


Voltage: 220 Volts


Manufacturer: Fosi Audio


Mounting Type: Surface Mount


Brand: Fosi Audio


Item dimensions L x W x H: 5 x 3 x 1 inches


Voltage: 220 Volts


Manufacturer: Fosi Audio


Mounting Type: Surface Mount


Brand: Fosi Audio


Number of Channels: 2


Package Type: box" or "retail packaging


Specification Met: FCC


UPC: 653472995246


Product Dimensions: 5 x 3 x 1 inches


Item Weight: 1.98 pounds


Item model number: V1.0G


Is Discontinued By Manufacturer: No


Date First Available: March 27, 2017


Language: English


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 25

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

    • Very satisfied, great sound and great value
AN UPDATE: I liked this tiny amplifier so much that I bought a second one for my office computer. Previously, my main computer used a Lepai LP-2020A+ driving a set of decent bookshelf speakers, and my office computer used a set of cheap USB active speakers. Later I bought the first Fosi to replace the Lepai on my main computer system, and it worked out beautifully (see the ORIGINAL REVIEW below). I decided I would use the Lepai on my office computer, and for that, I bought a set of Polk Audio T15, which are probably the cheapest slightly "serious" bookshelf speakers but should be far better than those cheap USB speakers. But within minutes of setting up the system, I felt terrible. It's not that the Lepai LP-2020A+ with the Polk Audio sounded worse than the cheap USB speakers. On the contrary, they were noticeably better. The trouble was that I started to compare the office sound with my main computer system sound, and I just couldn't help it. This is what happens when you get into a better system. It spoils you. On the office system with Lepai, everything sounded so hollow and distorted, especially the vocals and human voice recordings (not singing), which was so bad that I couldn't stand. It was painful. At first I thought it might be the Polk Audio T15s, but then I suspected it was something else, including the built-in line output, etc. Speculating all kinds of diagnostic possibilities was driving me crazy. Finally, I just gave in and bought a second Fosi, with a good DAC, planning to return the Polk Audio T15s for something better as well. Well, the Fosi and DAC came in, and I connected them to the computer and the Polk Audio T15s. What an improvement! Clearly, the Polk Audio T15s are fine (although not great). The culprit was the Lepai LP-2020A+ amplifier, as the Fosi made a huge difference. The following is the original review I wrote after about the first Fosi: ORIGINAL REVIEW: Unbelievable value for a small desktop setup or computer sound system. Everything is perfect. The sound, the functions, the build quality, and the appearance. This replaced my seven-year-old Lepai LP-2020A+, which actually had quite good sound on my computer sound system as well, but left me wanting a bit more. One of the obvious issues with Lepai was the highly noticeable noise floor when the volume is turned past 50%. Although I seldom turn the volume past 50%, the limitation is bothersome. After seeing some reviews on the TI TPA3116D2 chip, I decided to upgrade, to just give me a bit more peace of mind. And I am very satisfied. The Fosi sounds great. To be honest, I did not do a side-by-side comparison with the Lepai, but I am pretty sure Fosi delivers cleaner and fuller sound. The noise floor is much lower. It is quite low even if you turn the volume all the way up to the maximum. On my desktop speakers, I can hear no noise when the volume is below 30%. Once it passes the 30% level, the noise floor steps up abruptly, but strangely enough, it stays quite flat after that and does not further increase too much even if you turn the volume all the way to 100%. Even at the maximum level, the noise is only slightly noticeable when I sit about five feet away from the speakers. This is a near-field environment, and I'm fairly picky about the noise, but still, this is completely manageable. A day-and-night difference compared to Lepai LP-2020A+. Fosi comes with a rather large power supply, which may seem unnecessarily large, but is necessary for its 50W x2 power rating. When it comes to power, you simply don't have any way to cheat. For example, having a 30 W power supply for 50 W x2 = 100 W amplifier will inevitably lead to insufficient amplification and distortion at higher volumes. Also, the fact that Fosi has five-way binder posts for speaker connectors is a plus, much better than Lepai's primitive clippers. I did hesitate in choosing between the Fosi (this unit) and Micca OriGain A250 or OriGain AD250. OriGain A250 is $20 more expensive, not a lot in the dollar amount, but one-third (33%) more in relative terms, which becomes a matter of principle, if not affordability. Still, I almost got OriGain A250 instead of Fosi V1.0 because the A250 has slightly better user review ranking, and I desired peace of mind. But then I saw reviews that mentioned OriGain A250's having heavy bias on the left channel at low volume level. That bothered me as I usually listen to background music at quite low volume levels. OriGain AD250 had its own attractions because it had a built-in ADC and USB sound input. However, in the end, I decided not to go that route because integrating ADC may appear convenient now but could be an invitation for trouble further down the road. What if the built-in ADC develops problems? (I did see one reviewer mentioning OriGain AD250's built-in ADC has a signal synchronization problem). Or what if you want to upgrade ADC? Etc. Anyway, I'm glad I settled on the Fosi. It leaves me wanting nothing more for my computer-based desktop system. ... show more
Reviewed in the United States on November 10, 2018 by Gao Atamazon
    • EXCELLENT solution for inexpensive desktop monitoring
With some repurposed used home theater speakers, this thing provides a FANTASTIC solution for home office desktop sound! It has more than enough power to drive efficient home theater speakers LOUDLY with volume knob barely cracked. Which is, actually, my only minor complaint-- this knob almost seems linear, rather than logarithmic. I only wind up turning it through about 15 degrees to go from off to blasting-- but it does so smoothly and cleanly. I am not willing to see "how loud" it will go-- both these speakers and this amplifier are game for more than I am. I have two old BIC Venturi surround-sound speakers that I use for near-field monitoring. These are findable on eBay and thrift stores from time to time-- and they are EXCELLENT. I had been driving four of them with a big ELAC center channel... as... a videoconferencing setup. The idea was that I could be anywhere in my office and still get good audio. Anyway, long story short, it was total overkill, took up a ton of room, and was a wiring nightmare. Now I have the Venturis hooked up to this amp, running off a Focusrite Scarlett USB audio interface, itself on a USB switch connected to multiple machines. Whatever I'm on now has amazing sound, and I have a ton of room back and far less cable management. The amplifier itself is TINY, fits under my monitor, and doesn't even get warm. This new generation of power amplifiers is really something else-- >90dB SnR, etc. Phenomenally clean sound with a good audio source. Literally so transparent there is no point in turning it off when you're not playing something. I can't believe this thing is $50. Sometimes I really love living in the future! ... show more
Reviewed in the United States on September 1, 2022 by M. C. Heck
    • Clean sound with good volume
It has very clean sound with no 'hiss' in the background when no audio is playing. It doesn't get that loud, but it's perfect for a small computer-audio amplifier. Even at maximum volume, the sound is clear without hiss.
Reviewed in the United States on October 15, 2024 by G. Isla
    • Good for powering small speakers
I'm using this to power two Klipsch Quintet speakers in an 11.2.4 home theater set up. It seems to be solid... Has a little bit of weight to it, which feels nice. It powers the two speakers fine and the sound is clean when receiving a signal from my Denon AVR 3600. It was very easy to hook up. It took me longer to unpack it than it did to have it up and running. I just set the volume of this to 50% and let my tuner set up control the output level. My only gripe is there is no auto shut off, but it doesn't get hot at all, so I guess it's not really an issue. I'm very happy with this little amp. ... show more
Reviewed in the United States on October 14, 2019 by Leo
    • Excellent Low Profile Amp
I bought this amp as my AudioEngine A@ speakers died. The amp in the left speaker gave out as is common for these OLDER A2s. Instead of trying to fix the Board inside the speaker, I decided to convert the speakers to passive. The process was quite simple as the crossovers were not on the board (like they are in the A5s) but neatly placed outside the PCB inside the speaker. I simply bought this amp, added the Fosi banana plugs, and inserted them in the proper spot on the amp. The amp works wonderfully. This is a cheap and reliable fix for any powered speaker system you want to convert to passive, and yet, not lose your 300-600 dollar investment. Thanks Fosi! ... show more
Reviewed in the United States on September 29, 2024 by Friar
    • Spend a tiny bit more and get the one that has Bass and Treble controls!
This exceeded my expectations. Low power use, clear audio and amazingly compact form factor. One complaint though, and it's my fault, I should have spent a few bucks more to get the model with Bass and Treble control. It really is a MUST HAVE when amplifying audio signals from most devices. But yes, this little powerful amplifier rocks! ... show more
Reviewed in the United States on August 5, 2024 by shipsalloverus
    • It’s magic
Running 2 KEF Q350s on my desktop for some reason. Needed a small little amp, SCHIIT canceled my order twice because my address couldn’t be verified, so looked for alternatives. Not an audiophile per se but I am picky. This performs incredibly and is cute. This is currently feeding a fulla+ and then connected to a PC. It has enough power to get a party going and blow out the speakers, I’m not sure why I ever stuck to the huge amps.. enjoy ... show more
Reviewed in the United States on October 16, 2024 by Arthur

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