Fosi Audio V3 Amplifier Review

[antcollinet]

I've read a few comments saying that the V3 with larger power supply sounds better even at low volumes. This seems unlikely. Is there any benefit other than greater volume of the larger power supply?

It seems extraordinary unlikely unless the amp with the 32V PSU is being driven into clipping.

The bigger PSU will enable operation at higher volumes without clipping.

 

[TurtlePaul]

I ordered last night with the 48V PSU on the Fosi site. A shame that it ships from China. Lets see if this will take one week or one month. I would have preferred to order on Amazon but didn’t need the price or waste of two power bricks.

 

[antcollinet]

Lets see if this will take one week or one month.

More importantly let's hope you don't experience any issues requiring service.

 

[TurtlePaul]

More importantly let's hope you don't experience any issues requiring service.

At less than half the cost of a 2-channel receiver from Best Buy, I am willing to consider this an impulse purchase / disposable.

 

[peng]

I just ordered one from Amazon, preferred the 48 v brick but Amazon has good return policy, and for desktop use I am sure the 32 v one will do. It will replace my 50 w NAD C326BEE. Will know how well it works compared to the NAD amp as early as tomorrow.

 

[saberger0357]

Hi all!

Quick review of V3

First i tried with 48V PSU and amp is clearly overheating!! About 50-60 degrees around whole enclosure. Could be something wrong with PSU (looks like original, but without Fosi inscription)? Then i hooked 32V and temperature dropped almost on ambient temperature around 25 degrees, but sound degraded- much of low listening volume bass was gone, amp lost grip. Boxes are Wharfedale Denton 80, 6 ohm, 86db eff.
So for 100 EUR good amp without sterile class d sound but overheating is clearly issue here. I had similar class d amp Nuforce Icon which is much better sounding and also stone cold in operation.

I've never had any issue with overheating on the V3 with the 48V. Does it get a little warm? Sure. Just like pretty much all of my amps. But I can rest my hand on it and it never gets to the point of having to remove it. Something else must be going on with yours.

 

[saberger0357]

Hell - these speakers are sounding better than I believe they have any right to.

Tempted to try the V3 with my "proper" speakers now. Though It will be a pain in the ass to set up.

I use mine with my AR3's, and the combination sings. And the 3's are not an easy speaker to drive. The V3 does so effortlessly.

 

[alvigg]

Fosi is having a 20% off sale.

Fosi Audio V3 Mini Stereo Amplifier

This compact yet powerful amplifier delivers a maximum power output of 600W into two channels, ensuring a captivating and high-fidelity sound experience.

fosiaudioshop.com

 

[alvigg]

Sale is also on Amazon

 

[peng]

Sale is also on Amazon

Looks like the 20% is only for Amazon.com, Amazon.ca only gives 5% on checkout.

 

[alvigg]

works ordering direct from Fosi. Takes on the order of a week, maybe a little more.

 

[peng]

I've read a few comments saying that the V3 with larger power supply sounds better even at low volumes. This seems unlikely. Is there any benefit other than greater volume of the larger power supply?

I am sure you are right, that it is unlikely to be true, but just people who do sighted comparisons usually heard the more expensive stuff being compared "sounds better".

 

[Leethompson]

So, we should choice psu 48v or 32v? Pls answer me, thank everyone.

 

[peng]

So, we should choice psu 48v or 32v? Pls answer me, thank everyone.

It depends on your own requirements. More is almost always better.

 

[TonyJZX]

lol how is it not obvious at the point

do you want 34w? get the 32v

do you want 89w? get the 48v

 

[Leethompson]

cười lớn làm sao nó không rõ ràng ở điểm đó

bạn có muốn 34w không? lấy 32v

bạn có muốn 89w không? lấy 48v

My mean is, which psu will make sound quality better. Thank u.

 

[TonyJZX]

it is my belief all things being equal, the SQ is the same

your belief is your belief

 

[peng]

My mean is, which psu will make sound quality better. Thank u.

If you have 4 ohm speakers and need more than 60 w, the 48 v ps for better sound quality when you push it to near the limit during the peaks. Or if you have 8 ohm speakers and you need more than 30 w.

I only need about 10 w or less 8 ohms or 20 w 4 ohms, so I am okay with the 32 v ps, but I do prefer the 48 v one, slightly.

 

[Leethompson]

Thank u so much. I will choice 32v for my 4 ohm speaker.

 

[peng]

Thank u so much. I will choice 32v for my 4 ohm speaker.

If that's all you need, the amp might last longer with the 32 v ps..