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Fosi Audio V3 Amplifier Review

Rate this amplifier:

  • 1. Poor (headless panther)

    Votes: 10 2.0%
  • 2. Not terrible (postman panther)

    Votes: 44 8.8%
  • 3. Fine (happy panther)

    Votes: 235 47.2%
  • 4. Great (golfing panther)

    Votes: 209 42.0%

  • Total voters
    498
 
yeah, i read about it later. but V3 is great as it is, dont see where is this PFFB noticeable in general use. Is there an actual audible difference to sound output, or this is just spec war.
Most people can not hear the difference, even in comparison test, as myself, I can not sense the 0.5dB difference. And different speakers have different impedances, it also depends on your speakers.
 
so to conclude, not worth the hassle for someone who owns V3 and ZA3 lol
This is a very decent Mono amp at this price point, and suitable for new systems and the delta isn't worth it for folks who already own a V3 or similar. But going forward, I expect this would be a leading candidate to evaluate if one wanted to build something up with Class D Mono Block Amps.
 
This is a very decent Mono amp at this price point, and suitable for new systems and the delta isn't worth it for folks who already own a V3 or similar. But going forward, I expect this would be a leading candidate to evaluate if one wanted to build something up with Class D Mono Block Amps.
I get the proper mono block amps, due to their size and power, so they would be really big to have them in one enclosure.

But I trully dont see why this would exist as a solo amp, or they need to just make a 2ch straight power amp, like combining two of these in one enclosure.
 
A mono amp has for multichannel applications its advantages, or how would you power the 3-channel front arrangement (L,C,R etc.) ?
This is one of the many advantages a single channel (mono) may have...
 
A mono amp has for multichannel applications its advantages, or how would you power the 3-channel front arrangement (L,C,R etc.) ?
This is one of the many advantages a single channel (mono) may have...
how? with something made for it, less cables, less power bricks, less mess, as in
https://www.audioholics.com/amplifier-reviews/monoprice-m5100-amp

To buy 3 x mono V3, it will cost you over $400, I would spend extra few $ to buy a dedicated 3ch amp.

single box with built in power supply, and way less cables and mess, then 3 x V3.

And in my experience, V3 is actually not good for HT use, at least original V3. It sounds like crap comapred with my AVR output dut to low gain or something, I was explained.
 
I see that the Kickstarter campaign will provide two options. One with a single power supply and one with two power supplies. I'm easily able to hide my power supplies so would there be any sonic benefit in getting two or should I stick with one? I don't play my music above 75db and I'm only feeding the signal above 85hz to them as I'll be using the high pass filter on my Kef KC62 sub.
 
Quick question, would it be better to have the volume control in Windows 11 set to 100% and then control the volume through the Fosi V3 amp, or can I just leave the amp at maximum volume and control it through Windows?
Depending of your set-up,I would read this one first:


It might need to be a tad lower to avoid stuff.
 
I see that the Kickstarter campaign will provide two options. One with a single power supply and one with two power supplies. I'm easily able to hide my power supplies so would there be any sonic benefit in getting two or should I stick with one? I don't play my music above 75db and I'm only feeding the signal above 85hz to them as I'll be using the high pass filter on my Kef KC62 sub.
Then just one 48V 5A is enough.
 
I ordered this little amp for the play room of my boys so they can play some music, quite eager to receive it...

I plan to use it with a SMSL SU-1, RPi streamer with moOde OS and some Q Acoustics 2020 speakers.
Nice that it's such a simple amplifier as my kids basically only use Spotify as music source, hope this little amp delivers.
 
A mono amp has for multichannel applications its advantages, or how would you power the 3-channel front arrangement (L,C,R etc.) ?
This is one of the many advantages a single channel (mono) may have...
I have 3 x Fosi V3s powering, respectively, the stereo front channels; a center channel speaker which is bi-amp capable (Paradigm C500) so I power the treble mid input with one channel and the bass drivers input with the other channel; and the rear channel speakers. For the front channel I use the 48V/5A PSU, while for Fosi V3s powering the center and rear I use 36V/6A PSUs. I also have 2 Aiyimas powering the the ATMOS front and rear height speakers and those Ayimas are powered by the the stock 32V/5A PSUs.

Very happy with these Class D amps which actually replaced a bunch of Class AB amps on my setup.

Center channel is bi-amp capable so I use the left and right channel outputs of one V3 to power these:

05.jpg



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Just got one of these(w/orange knob & 48v natch).
My goodness, the output posts are small - what are you cats using to connect it to your/my 12 gauge wires ?
 
Just got one of these(w/orange knob & 48v natch).
My goodness, the output posts are small - what are you cats using to connect it to your/my 12 gauge wires ?

I do not have mine in yet (still in transport) but I was indeed planning to use banana plugs as mentioned by @Toku

I already prepared the speaker cables and used 2,5mm2 cable (which should be 14 AWG), I used speaker snaps to terminate them. Curious how they will work once the Fosi Audio V3 is in, but I think they look nice...

20240428_203110.jpg
 
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I do not have mine in yet (still in transport) but I was indeed planning to use banana plugs as mentioned by @Toku

I already prepared the speaker cables and used 2,5mm2 cable (which should be 14 AWG), I used speaker snaps to terminate them. Curious how they will works once the Fosi Audio V3 is in, but I think they look nice...

View attachment 367053
4 mm banana plugs are best safest option, as you already prepared your cables with.
 
I was sceptical but yup, bananas fit - yay
Second question - if I run it powered on 24/7, does it get warm with zero audio input ? Thinking I'll power-on the miniDSP Flex used as my pre & control volume from that . . .
 
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