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Fosi Audio V3 Mono Amplifier Review

Rate this amplifier:

  • 1. Poor (headless panther)

    Votes: 8 1.5%
  • 2. Not terrible (postman panther)

    Votes: 14 2.6%
  • 3. Fine (happy panther)

    Votes: 106 19.9%
  • 4. Great (golfing panther)

    Votes: 406 76.0%

  • Total voters
    534
so, taking advantage of the fact that nothing interesting is happening, a question about cables: - will absolutely any 6.3 jack/XLR cable be ok? Because the cables are marked differently, one for microphone, one for guitar, etc., etc. Are they all the same cables or do you need to pay attention to something?
 
so, taking advantage of the fact that nothing interesting is happening, a question about cables: - will absolutely any 6.3 jack/XLR cable be ok? Because the cables are marked differently, one for microphone, one for guitar, etc., etc. Are they all the same cables or do you need to pay attention to something?
Not unless you are playing on a stage, have both guitars and microphones, and have a bad memory :)
 
so, taking advantage of the fact that nothing interesting is happening, a question about cables: - will absolutely any 6.3 jack/XLR cable be ok? Because the cables are marked differently, one for microphone, one for guitar, etc., etc. Are they all the same cables or do you need to pay attention to something?
Guitar cables are mono but the one you’ll want is stereo. TRS is tip, ring, sleeve, which allows for one earth and two signal wires in the cable.
 
so the issue of stereo mono is the only important "parameter" with these cables? Are microphone cables ok? Maybe some recommendations and examples?
 
ok, thx.

But why it has to be stereo cable? For me it looks like two mono cables - for two V3 MONOS - would be ok...?
 
ok, thx.

But why it has to be stereo cable? For me it looks like two mono cables - for two V3 MONOS - would be ok...?
Because it is balanced. You need two signal wires even though it is a mono signal.

Microphone cables with XLR connectors will be fine although maybe a lot longer than you need. Amazon has a wide range of interconnects including TRS to male XLR, which is the type I’ll be ordering to go from my DAC to the V3 monos.
 
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ok, thx.

But why it has to be stereo cable? For me it looks like two mono cables - for two V3 MONOS - would be ok...?
Yes. This will work fine.

-Ed
 
ok, thx.

But why it has to be stereo cable? For me it looks like two mono cables - for two V3 MONOS - would be ok...?
The cables need 3 conductors, screen, plus and minus signals. That's a mono cable not stereo. So you need a pair of cables for either two monos or one stereo amp with XLRs.

You *can* get a 5 pin xlr socket for stereo connections rather than a pair of 3 pins, but the 5 pin is very unusual, and would need a 5 conductor stereo cable, but you'll probably never see one of these.
 
just buy two mono mic cables of a length you require... and then slap a sticky L/R label on it if you need it

they are real cheap anyway
 
Yes. This will work fine.

-Ed

The cables need 3 conductors, screen, plus and minus signals. That's a mono cable not stereo. So you need a pair of cables for either two monos or one stereo amp with XLRs.
The distinction in the original question was between two types of 6.3mm jack cables: a TS tip and sleeve and a TRS, which is tip, ring, sleeve. Guitar leads are TS while TRS cables are often used for stereo signals and can carry balanced mono signals.

TS cables will not allow a balanced connection. TRS and XLR cables will.

No one has said that the TRS cable will be carrying a stereo signal in this scenario.
 
The distinction in the original question was between two types of 6.3mm jack cables: a TS tip and sleeve and a TRS, which is tip, ring, sleeve. Guitar leads are TS while TRS cables are often used for stereo signals and can carry balanced mono signals.

TS cables will not allow a balanced connection. TRS and XLR cables will.

No one has said that the TRS cable will be carrying a stereo signal in this scenario.
Thanks for the clarification. In my head the only type I was considering was 3-pin XLR male on one end and 3-pin XLR female on the other. I did not take TRS balanced connections into thought at all, my mistake. I also was not at all thinking about 4-pin XLR or TRRS.

-Ed
 
Thanks for the clarification. In my head the only type I was considering was 3-pin XLR male on one end and 3-pin XLR female on the other. I did not take TRS balanced connections into thought at all, my mistake. I also was not at all thinking about 4-pin XLR or TRRS.

-Ed
OK, then you just need something like this that I purchased recently. matching purple colour
 
I would like to know a little more of the use case for the balanced connector. For example, my setup is wiin mini -> schiit dac -> V3 ) to my elac dbr62. I control volume via wiim home (mostly)
So.. what preamp or preamp-> dac calls for a balanced cable (xlr) connection ?
 
I would like to know a little more of the use case for the balanced connector. For example, my setup is wiin mini -> schiit dac -> V3 ) to my elac dbr62. I control volume via wiim home (mostly)
So.. what preamp or preamp-> dac calls for a balanced cable (xlr) connection ?
For home audio the main advantage of balanced connections is to avoid possible ground-related noise issues like hum and 'USB noise'. If you never have these problems you don't need balanced connections.
 
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