Can't comment much on it. I was expecting more. However, the rest of my chain is pretty simple (WiiM Pro Plus streamer going directly, via RCA, to amps. Speakers are Dynaudio Contour 1.3 SE, so there will be a need for source (DAC) upgrade.
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Fosi Audio V3 Mono Amplifier Review
- Thread starter amirm
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not the ampere rating but the voltage. I'm comparing the 2 power supplies. The voltage from the supply ideally should be constant. So 48v generates more heat than 32v.Probably not
The 5A and 10A power supplies are the same voltage so the idle/standby current and heat output would be identical for any of the power supply configurations.
You mean the V3 Monos have a hardware error, that I could solve by placing that part of the speaker wire, that goes into + into - and vice versa without damaging my speakers/monos?
Shall I do this on the amp's terminal or the speaker's?
It does not matter, technically—the back of the speaker is likely more visible than the back of the amp, so probably better at the back of the amp.
-Ed
Miser_Audioman
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Lol yes need some more coffee apparently
I'm not sure if i'm understanding the issue correctly, but am i going to be affected by it if i want to use two monos for, say, SMSL D6s acting as a pre-amp/dac in conjunction with ELAC DBR62s? Using RCA cables and banana plugs.
Agreed. But the power supplies for the monos are all 48V whether 5A or 10A supplies are chosen so the heat generated (to address the original question) is going to be the same whichever option is chosen.
If you use a different non-standard power supply then yes, both amplification available and amplifier temperature are likely to change.
No, you won't be affected.
Use just a pair of monos and you'll be fine. It is only a concern if you are going to do something like use a mono for one channel and a different model of amplifier for another channel. If you do that you have a sort of 50:50 chance of getting mismatched phase, but even then all you have to do is swap over the +/- connections on one of your speakers.
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i was comparing my BT20A which has the same amp chip with 32V supply instead of 48V
If you’re just driving two speakers with a pair of V3 Monos and nothing else, you have no problem.
If you’re blending in, say, an active subwoofer, then you may have an issue, or if you are using the V3 Monos as part of a surround system with the other channels driven by a different amp type, you may have a problem.
-Ed
Bleib
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Consider using just XLR though as the amp performs better in this mode
Did you already have some other TPA3255 amps before you are comparing to Fosi V3 Monos? I don't think people were expecting noticeable subjective SQ improvement with the new V3 monos, were they?
I have seen some people just remove that orange-colored strip from the sides of the chassis for better ventilation, which sounds like a good idea, especially during these super hot summer months.
I don't have one, but the holes seem quite big in the picture. I wonder if dust could become an issue.
Thank you for this suggestion, so i've read - may i ask how do i do that in aforementioned setup? I've never used XLR cables really, i'm still learning :/
Edit: nevermind, i think i got it
going with the XLR then.
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In my case the Fosi sound clearly worse than my old Marantz SR6009 using the same streamer and DAC.
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