Extremely simplistic, again.
What you want to preserve so much is itself a reduction at start. The aim is not the signal, but the phenomenon before the signal. The signal is, again, a tool.
More, what enters a usb transport is a flow of 0 and 1,what arrives to our ears is moving air. Noone on Earth can control exactly and completely on paper, using math, what happens in between. Thinking that THD is all that matters is extremely simplistic. Even for an experienced audio engineer a long period experimenting and adjusting is necessary to obtain very good sounding gears.
What you imagine about human math and physics controlling the whole thing is simply a misunderstanding...
Obviously i don't mean to say they're unnecessary or avoidable, but they don't tell the whole story (yet).
I agree - how could someone disagree?
The problem is that you're so arrogantly convinced that i do.
The key is using both science AND perceptions.
Science was built on perceptions and is all about perceptions objectivation.
Every experiment is based on perceptions, then math or physical laws follow to explain perceptions.
So when math and physics don't meet perception, something is going wrong and it's too simplistic to always think perceptions are wrong. Maybe your understanding or knowledge about math or physics could be wrong or incomplete?
My perceptions have limits, i understand this and i take it in count. But your knowledge and understanding have limits too, it doesn't seem to me you're taking it in count: you're always sure our perceptions are wrong without even trying yourself. That's arrogance, isn't it?
Maybe you should just drop this arrogance and go listening many other hiend hifi tubes systems with an open mind. I think you'll discover a new wonderful world.
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Or maybe you are so arrogantly convinced that I am.
Sure. That is when you go back and verify the observations by objective, independent verification. When you have verified and replicated observations that don't match current theories, you formulate new theories - and come up with ways to tests those theories. Until they are tested and verified, they are just speculation.
I am not sure your perceptions are wrong - I just don't have any reason to believe they are right.
And have not claimed THD is all that matters.
No, of course, it is all about what happens on a higher astral level.
So, logically speaking, before saying my perceptions are wrong, to be scientific you should at least try by yourself what i report.
Or, if you don't have a reason to believe they're tight BUT you are not sure they are wrong too, then simply shut up and don't write a post against me every time i report them.
Astral level? Nobody ever made me perceive its reality, so it doesn't exist for me.
Surely i am more scientific than what you think 😀
If I have reasonable reason to believe they are not right, and I don't see any evidence to the contrary, I will point out stuff based on existing engineering knowledge. If you disagree with that, you are of course more than welcome to debate it on a factual basis.
Well, you can do that, but first, if you want to be morally correct, why don't you go and post your "engineering knowledge" to someone else thread, someone like Nelson's Pass and debate your point of view there ? You know his builds are quite THD friendly but some people love them.
There is a group effort in a greek forum of a 4490 DAC and the great thing is that they actually building all kind of output stages, discrete, opamp and valve one
I think Lyuben made his build (DAC + output stage) aiming to be the cheapest possible so the absolute hunt for specs don't apply here and doesn't do good for his builds either
Some people loves others wives, maybe they are majority.. so, that is right thing to do..
That's not science, that's faith. Science is based on experimenting.
I would like to debate on a factual basis. It's you that are talking without even ever have listened to what i describe.
Well designed speakers from this century have lower THD than tube output.. that is fact..
Science is based on verified observations and the scientific method. Do you know what the word "falsifiable" means?
Remember Galileo? He went beyond what your simple senses told you subjectively, and actually used scientific instruments and mathematics.
Unfortunately I can't claim any sort of ownership of run-of-the-mill engineering knowledge. It is there for all of us, in basic textbooks and elementary university EE courses.
The real revolutionary force of Galileo was in experimenting instead of simply trusting the actual knowledge of his time. He saw that what he perceived was not compatible with what was believed by the official knowledge and started to investigate.
You only have to learn from his methods...
Those like you, even at that time, would have said: i have no reason to trust what you perceive, so i trust what is well reknown
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OK, I get it, what you have to offer is another debate about opamps. Well, guess what, it's only amusing to you and we the rest had enough already.
The thread is called "XMOS DSD 384 kHz / 32bit USB" so you should write about your builds of it (I guess 4490 implementation could be tolerated). The rest should be deleted by mods.
Edit: Luca72c post of his tube output stage was very interesting but continuing the debate is no use to me either
The thread is called "XMOS DSD 384 kHz / 32bit USB" so you should write about your builds of it (I guess 4490 implementation could be tolerated). The rest should be deleted by mods.
Edit: Luca72c post of his tube output stage was very interesting but continuing the debate is no use to me either
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Thank you! Please don't forget about battery power, it was an interesting step in SQ up too 🙂
Everything start from there.. Luca introduce tube output that he believes is the best..
I said something about few hundreds biger THD of such solution, modern speakers have lower distorsion, and that is fact..
Both Joro's output for AK4490 are at least two classes ahead, and that is fact too..
You don't know what you are talking about...
They're (maybe) two classes ahead in THD. But they are 2 classes behind in overall sound quality.
Many other diyers listened to both solutions and bcf tube output and everyone among them agrees that the latter is simply of higher sq level, not comparable.
Joro opamps output stages are absolutely good for their price range and my goal is not to convince anyone they're bad sounding. But a well implemented bcf tube output is an higher level (and cost).
Did you ever listened to it or you are simply moved by faith?
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I'm only talking facts, if you have just one instead of insults go ahead..
In this world majority is never right, and that is fact too..
Joro's output stage are few hundred times better than one with tubes, and that is fact..I agree that majority of listeners think and believe that tubes sounding better, but that has nothing with reality.. again, read few definitions of hi-fi..