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Fosi V4 & V5 Mono - Fosi goes Hypex

Ropeburn said:
Do they still make AB amps?
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Haven't seen any new AB ones from them, you're right about it.

But there must thousands C 316 and the likes out there for example.
The fact that they are easy repairable indicates that they will probably be around forever.
 
These new Fosi amps have split the audience with their striking casework.
Evidently a small form factor is a deficit for some when it comes to amplifiers.
When it failed, twice, I replaced my large Bryston 20kg 'muscle' amp with a Topping PA5II. I could not be happier with the results, external power supply (under the rack and out of sight) included.
These small boxes are more efficient, they use less resources, and they perform as well or better than the old, big, statement boxes.
 
Transistor said:
It’s hard to say right off the bat. But I like Rotel’s entry-level and mid-range lines. The brand seems to have a pretty good reputation.
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I’ve seen a used Rotel rb 1582 mk2 used for 800€.. would that be a better choice reliability wise than an audiophonics based class D hypex amp?
 
Bleib said:
As electronics have become better I don't see any need for full size stereo pieces. Why would a 2 channel class D need to full size enclosure for?
But it's a bit odd that companies like Fosi doesn't try to find a similar design "language" for all products, and that includes also size.
V4 and V5 are vastly different from previous releases. That makes no sense. The orange nose is missing as well.
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If you are buying a whole system it's fine they are desktop sized. But I'm not likely to add something half sized in my existing gear that's in my living room and I'll be staring at it all the time.
 
Chanur said:
If you are buying a whole system it's fine they are desktop sized. But I'm not likely to add something half sized in my existing gear that's in my living room and I'll be staring at it all the time.
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Personally, I don't like to match full size with half size and black with silver. My AV rack is all silver equipment in full size. There is visual satisfaction with my equipment even when I am not listening.
 
Latest Video from the designer explaining the hardware and power supply related details.



P.S.
He says that these were designed with Hypex, and he wanted more clarify in the model v5.
Some highlights like Power Supply is mounted below the amplifier module, don't know if its for both V4 & V5 or just V5.
 
Last edited:
A lot of amplifier fondling in that video :eek:
 
Guddu said:
Latest Video from the designer explaining the hardware and power supply related details.



P.S.
He says that these were designed with Hypex, and he wanted more clarify in the model v5.
Some highlights like Power Supply is mounted below the amplifier module, don't know if its for both V4 & V5 or just V5.
Click to expand...
So, I learned it's so beautiful and they both have Hypex inside and it's beautiful design and the power button feels nice and sounds nice and is sturdy, and the power supply is inside and that's groundbreaking, oh and it's so beautiful.

Not sure Fosi did themselves a favour hiring this guy.
 
Ropeburn said:
So, I learned it's so beautiful and they both have Hypex inside and it's beautiful design and the power button feels nice and sounds nice and is sturdy, and the power supply is inside and that's groundbreaking, oh and it's so beautiful.

Not sure Fosi did themselves a favour hiring this guy.
Click to expand...
Now buyers will have to pay for his expert services to Fosi.
 
Guddu said:
Now buyers will have to pay for his expert services to Fosi.
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20764.jpg
 
… I admire his erm, obvious enthusiasm. I really do.

But I’m not sold on his being a musician and developing electronics.

Naturally I’m sure he did not, and that it was Fosi engineers along with a little input from Hypex that delivered the workings.

I do very much like the casing of the 5. Which I suspect may have had more contributed by the video guy than did the amp internals.

But there’s just something a bit odd about his presentation on this and the last video.
 
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