Fosi v3 Mono - User Impressions | Owner's Thread

[Electric_Haggis]

Best if you remain convinced of that and don't try the comparison

I'll take that as a positive reply...

 

[antcollinet]

The snake oil you tuber don't care about the sales of any opamp they don't own those companies.
15 years on this web page talking about opamp is snake oil. And thousand of user talking about opamps is snake oil.

The Opamp thread

Dip8 is footprint of most trough hole opamps. Soic8 is the smd equivalent. Seeing pictures in reviews of your amp, it is dip8, and they supply 5532 opamp in dip8. If you can open it and send picture directly here, i can tell for certain.

www.head-fi.org

Provide actual evidence - measurements or proper blind test - otherwise all you are bringing are claims. That which can be claimed without evidence can be dismissed without evidence.

 

[jannek]

Wohoo. I did not mean to start a war about if op amp rolling is snake oil or not. My only concern was if it might make sense to reduce thd at line level because in my understanding any noise there would be amplified. I definitely won't spend more than a few € for an op amp, let alone Muses or even Sparkos. Even less I will risk stability of the amp.

 

[T&T]

Provide actual evidence - measurements or proper blind test - otherwise all you are bringing are claims. That which can be claimed without evidence can be dismissed without evidence.

I think you have to proof first that you don't have any earing impairment.
I believe what I ear and never listen/ear through the graphics.

 

[antcollinet]

I believe what I ear and never listen/ear through the graphics.

We know you do. That is why we know we don't need to believe you in the absence of more convincing science and/or engineering based evidence. Your hearing - just like every other human being's - is easily fooled by cognitive biases. You literally can't believe what you hear.

 

[asimze]

Dear @T&T you have to respect yourself a little more!!! The crew of haters on this site are destroying any audiophile discussion. So I am discussing what I hear, not what is measured in some device. These measurements are only an aid, because in the final the hearing test always decides. Ask the constructors, the measurements are only halfway to the final.
It is not worth arguing with electricians whose level of electricity is spread around the house. I have a V3 and have PLAYED a lot with the power supply and the OPA, got great results, and would love to share my experience but @antcollinet destroys any healthy discussion. I don't know why he is wasting his time on this site, there are all kinds of people in this world.

 

[Todd k]

Dear @T&T you have to respect yourself a little more!!! The crew of haters on this site are destroying any audiophile discussion. So I am discussing what I hear, not what is measured in some device. These measurements are only an aid, because in the final the hearing test always decides. Ask the constructors, the measurements are only halfway to the final.
It is not worth arguing with electricians whose level of electricity is spread around the house. I have a V3 and have PLAYED a lot with the power supply and the OPA, got great results, and would love to share my experience but @antcollinet destroys any healthy discussion. I don't know why he is wasting his time on this site, there are all kinds of people in this world.

You an t&t i beleive are lurking on the wrong audio forum.

 

[SMen]

Dear @T&T you have to respect yourself a little more!!! The crew of haters on this site are destroying any audiophile discussion. So I am discussing what I hear, not what is measured in some device. These measurements are only an aid, because in the final the hearing test always decides. Ask the constructors, the measurements are only halfway to the final.
It is not worth arguing with electricians whose level of electricity is spread around the house. I have a V3 and have PLAYED a lot with the power supply and the OPA, got great results, and would love to share my experience but @antcollinet destroys any healthy discussion. I don't know why he is wasting his time on this site, there are all kinds of people in this world.

This is indeed the user impression thread. I just would make sure that comparisons are blind with level matching and so forth.

I'm just rather hoping to be being a user sometime soon to give my own impressions! No word from Fosi yet about any units being dispatched yet and it is the 18th!

 

[Deleted member 72219]

You an t&t i beleive are lurking on the wrong audio forum.

We are most definitely not exactly the crowd this place exists for, but I enjoy seeing how they look at things here because at the end of the day, people like us need a starting point to work from. If the ASR community identifies a component with excellent base performance, then people like us can rest in confidence that when people such as we DO play around with things that ASR members consider no-nos like op-amp rolling, we’re starting with a quality component on the first place. Lipstick on a supermodel as opposed to lipstick on a pig, so to speak.

-Ed

 

[asimze]

You an t&t i beleive are lurking on the wrong audio forum.

Lurking???
Asim is my name, ZE is the first two letters of my city. On any forum use same nickname. I just dropped by the site now to see if there is anything new. Nothing new, same old geeks having an orgy. Nothing creative.

 

[Sokel]

We are most definitely not exactly the crowd this place exists for, but I enjoy seeing how they look at things here because at the end of the day, people like us need a starting point to work from. If the ASR community identifies a component with excellent base performance, then people like us can rest in confidence that when people such as we DO play around with things that ASR members consider no-nos like op-amp rolling, we’re starting with a quality component on the first place. Lipstick on a supermodel as opposed to lipstick on a pig, so to speak.

-Ed

Quality,measurement wise - yes (at some metrics) .
Tested quality - not yet,and thermals don't inspire me to put it gently.

And I'm afraid that given the (momentarily) power figures people will imagine God knows what about it and will use it in ways that bad things will happen.
I see cases that people want to use them with subs,high SPL,etc.

I hope I will be proven wrong,but...

 

[asimze]

We are most definitely not exactly the crowd this place exists for, but I enjoy seeing how they look at things here because at the end of the day, people like us need a starting point to work from. If the ASR community identifies a component with excellent base performance, then people like us can rest in confidence that when people such as we DO play around with things that ASR members consider no-nos like op-amp rolling, we’re starting with a quality component on the first place. Lipstick on a supermodel as opposed to lipstick on a pig, so to speak.

-Ed

Yes. We play (WE PLAY!!!), and they are a kind of sect with very strict rules, all axioms

 

[Deleted member 72219]

Yes. We play (WE PLAY!!!), and they are a kind of sect with very strict rules, all axioms

What do you think they feel like when they (accidentally) visit and read stuff on sites like AudioKarma or Audiogon forums with people waxing praise over $3,000 power cables?

Frankly, “audiophile,” discussion spaces are a dime a dozen. I think ASR is unique and that is a great thing! We don’t have to agree on everything, we just need to take a step back and not resort to putting people down for the sake of it just because we don’t agree.

-Ed

 

[Todd k]

We are most definitely not exactly the crowd this place exists for, but I enjoy seeing how they look at things here because at the end of the day, people like us need a starting point to work from. If the ASR community identifies a component with excellent base performance, then people like us can rest in confidence that when people such as we DO play around with things that ASR members consider no-nos like op-amp rolling, we’re starting with a quality component on the first place. Lipstick on a supermodel as opposed to lipstick on a pig, so to speak.

-Ed

I can respect that, well said. There is definitely great knowledge to be gleaned here. I in the past have done some op amp rolling. Came to the same conclusion as most members here. The jist of this hobby is to enjoy music and our gear. Enjoy your equipment and have fun with it.

 

[antcollinet]

I don't know why he is wasting his time on this site, there are all kinds of people in this world.

Because this is "Audio Science Review", not "Audio I want to Believe Review". We promote science and engineering grounded discussion here, rather than. uncontrolled, and scientifically invalid sighted listening comparisons. Sure - we can talk about what we hear when the measurements, and/or engineering tell us there is something to be heard - but it really doesn't make much sense when the science and engineering tells us there isn't.

It is then, that you are going to get some significant pushback. Because what you are then doing is pushing disinformation as fact, and thereby leading others up the garden path to nowhere.

I would therefore ask the same question of you. Why are you wasting your time on this site if you have no interest in what it is about?

 

[Zek]

We promote science and engineering grounded discussion here

Could you be more specific about who you are?
What does science have to do with technical measurements of a device?
Are there any scientific breakthroughs here?
Science is something completely different and engineering is something exact.

 

[Negatywny]

Have you checked site name lately?

 

[Guddu]

*Interesting questions*

What does science have to do with technical measurements of a device?

Is it not science - the process involved, instrumentation used and attributes used for the measurements and describing those measurements?

Science is something completely different and engineering is something exact.

Hope you don't mind me asking for some explainination, genuinely willing to learn.

 

[antcollinet]

Could you be more specific about who you are?

That's actually an interesting question. I went looking for a "mission statement" or equivalent for the site, and didn't find anything. So I asked copilot (AI) and got this:

The Audio Science Review (ASR) Forum aims to bring together enthusiasts who enjoy discussing audio and related topics. It’s a place where members share knowledge, engage in scientific discussions, and explore audio hardware reviews. If you’re curious about audio science, this forum is a great resource!

More importantly one of the references was a link to the home page but not logged in which shows an additional panel to the logged in version, giving additional hints as to what the site is about ("Desire to learn and share knowledge of science required.") - as well as the "use of technical jargon" comment in the always visible panel:

Finally - there is the introduction to ASR Video channel - where @amirm further makes clear the purposes (as well as what are NOT the purposes) of this site.

So for me, "We" in this context means those members who are here because they appreciate and support the science/engineering values of this site, and want to engage with them, and learn from them. From what I can see this makes up the majority of longer term and actively engaged members. Those who don't share those values tend not to last so long.

What does science have to do with technical measurements of a device?
Are there any scientific breakthroughs here?
Science is something completely different and engineering is something exact.

Measurements are more towards the engineering side. Though there are plenty of science based discussion - eg see the psychoacoustics sub forum.

Scientific breakthroughs - not that many - but there is still plenty for most of us to learn within the established science.

And yes, I understand the difference between science and engineering - which is why I referenced both.

 

[GoDawgs]

What does science have to do with technical measurements of a device?

Because non scientific reviews suck, are meaningless, and only help people looking to impress by product name:

"The amp sounded wide and spacious, there was a sparkle with the new op amps and a definite improvement was noticed with the Kryptonite woofers".