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Fosi Audio V3 Amplifier Review

Rate this amplifier:

  • 1. Poor (headless panther)

    Votes: 11 3.0%
  • 2. Not terrible (postman panther)

    Votes: 32 8.7%
  • 3. Fine (happy panther)

    Votes: 185 50.1%
  • 4. Great (golfing panther)

    Votes: 141 38.2%

  • Total voters
    369

Juampa1989

Member
Joined
Dec 2, 2021
Messages
63
Likes
17
That makes sense. I was testing with a cheap Mii Bluetooth receiver that has no Vrms output specs. My plan was to use an iPhone with a ligtning to 3.5 dongle as a source. It's supposed to put out 1 Vrms with higher than 300 Ohns loads, which I guess any amp input is a lot higher than that. I'll see how this plays out and look for a proper DAC if not satisfied.

Thank you, @GXAlan!
Don't forget to look for a maximum of 2 vrms to avoid cuts. I have it with the fiio taishan d03k that gives 1.5 vrms. I bought and the smsl c100 quw gives 2 vrms which is the maximum of the fosi to use the entire volume of the fosi. I tested it with a fiio bta30 which is 3 vrms and trimmed with half a knob. It worked horrible, if I turned down the DAC, which can be adjusted with a knob, the audio was not of good quality. That's why I use the fiio taishan while the c100 arrives
 

Juampa1989

Member
Joined
Dec 2, 2021
Messages
63
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17
Hello, I take this opportunity to inform you that the c100 is discounted in case anyone is interested.
I just found this incredible item on AliExpress. Check it out! 50% DISCOUNT | SMSL C100 USB MQA DAC AK4493S XMOS

https://a.aliexpress.com/_mrefqXC

It is a dac that I consider to be a good companion for the fosi v3 given its specifications. The su1 was reviewed by amirm and it measured very well.
This one is quite similar to that one, the difference is that it has a remote control
 

gasolin75

Addicted to Fun and Learning
Joined
Sep 19, 2019
Messages
548
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109
Location
Denmark
Hello, I take this opportunity to inform you that the c100 is discounted in case anyone is interested.
I just found this incredible item on AliExpress. Check it out! 50% DISCOUNT | SMSL C100 USB MQA DAC AK4493S XMOS

https://a.aliexpress.com/_mrefqXC

It is a dac that I consider to be a good companion for the fosi v3 given its specifications. The su1 was reviewed by amirm and it measured very well.
This one is quite similar to that one, the difference is that it has a remote control

Not close to 50% off. Audiophonics just about the same price + what ever delivery you choose 2-3 days is fastest delivery for a european country

2023-09-23 20_11_18-SMSL C100 USB MQA DAC AK4493S XMOS XU316 DSD512 32Bit 768KHZ CK-03 Clock O...png


2023-09-23 20_12_29-SMSL C100 DAC AK4493S XMOS XU316 Bluetooth 5.0 32 bit 768kHz DSD512 MQA - ...png
 

gasolin75

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Sep 19, 2019
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548
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109
Location
Denmark
Used the provided link
 

gasolin75

Addicted to Fun and Learning
Joined
Sep 19, 2019
Messages
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109
Location
Denmark
Doesn't matter i don't need one :)
 

burkm

Member
Joined
Mar 5, 2020
Messages
77
Likes
39
I discovered already, that some products and offers - unfortunatley - are not available to some countries. To bad...
 

Mirmayand

Member
Joined
Sep 22, 2023
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5
Likes
2
I think it's the best way to cool it down.
 

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Mirmayand

Member
Joined
Sep 22, 2023
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2
I use this device
 

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Kunti

Member
Joined
Sep 15, 2023
Messages
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1
layman's question. The v3 uses standard 32v/5a power. running 6 ohm speakers. nominal input power 60 watts/maximum input power 150 watts. how many watts does v3 output? is this standard enough to run NS-333. or I need 48v/5a to get the most out of the speakers. thank you for your advice. sorry for my language, which may contain errors. Indonesia
 

TheBatsEar

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I think it's the best way to cool it down.
Get yourself one of these, you can find them by searching for "Infrared Thermometer GM320" for below 10 bucks:
https://de.aliexpress.com/item/1005004177656909.html
1695539832051.png

I suspect it may be off half a degree or so at times, but it's close enough for technical applications. Try to measure the temperature of a clear sky in the heat of the summer, you will be surprised. ;-)

Anyway, i measured my V3@48V at 46°C at the highest, driving a pair of Wharefedale Linton 85 at "groovy" levels over a few weeks. 46°C feels hot to the touch, but is far from overheating the chip or any components. It's about as warm as the inside of my Yamaha A-S1200 or the surface of the enclosure of a MiniDSP Flex.
No need for active cooling, in my opinion. It may make yourself feel better, but there really is no need.


@Fosi Audio You got a winner, but it doesn't even come close to even the cheapest Yamaha, Denon, Rotel, NAD integrated amplifiers. Where is the remote? I want to switch between speakers, i want to connect multiple sources, i want tone controls and a headphone jack. Just a good implementation of a Texas Instruments TPA3255 won't be good enough in the long run.
 
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