Why do USB cables make such a difference?
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Dec 5, 2018 at 5:50 PM Post #1,471 of 1,606
So the only time a a usb cable makes a difference Is when the dac defective spending silly money on a cable to fix the problem is madness replacing the defective dac seems like the most logical solution , measurements show even the cheapest cables work fine and are the best performance your gonna get with a properly functioning dac.
 
Dec 5, 2018 at 5:52 PM Post #1,472 of 1,606
That's my takeaway from this thread too.
 
Dec 5, 2018 at 9:36 PM Post #1,474 of 1,606
At least after 99 pages we have all finally reached an agreement.

My understanding is "all" is not in general a subset of the total. The lesson I take away from this discussion is it is valuable to learn that the people that agree with you are not always the people you can learn from.

I do not use fancy USB cables. But that is my choice. I have proposed why they "may" make a difference. RF susceptablility isn't a yes/no situation. There is a legislation pass/fail in some countries, but sound quality often requires a higher standard, and some designers have higher requirements than others.
 
Dec 5, 2018 at 9:42 PM Post #1,475 of 1,606
Ah. It was a defective one. That happens.

No it wasn't defective in terms generally accepted as measuring well. I have some measurement requirements that I have found make a difference listening blind that I want a product to pass. So I "fixed" it to my standard. There are plenty of DACs out there that wouldn't pass my tests. I am being deliberately cryptic as this is some proprietary knowledge I have picked up in my travels. Don't worry, I think the man involved in your Oppo DAC knows this too.
 
Dec 6, 2018 at 11:41 AM Post #1,476 of 1,606
No it wasn't defective in terms generally accepted as measuring well. I have some measurement requirements that I have found make a difference listening blind that I want a product to pass. So I "fixed" it to my standard. There are plenty of DACs out there that wouldn't pass my tests. I am being deliberately cryptic as this is some proprietary knowledge I have picked up in my travels. Don't worry, I think the man involved in your Oppo DAC knows this too.

Do you mind sharing the DAC Output effects of an item not coping with your standards? Just the output, no item name or any EMC levels. Thanks.
 
Dec 6, 2018 at 2:03 PM Post #1,477 of 1,606
I do not use fancy USB cables. But that is my choice. I have proposed why they "may" make a difference. RF susceptablility isn't a yes/no situation. There is a legislation pass/fail in some countries, but sound quality often requires a higher standard, and some designers have higher requirements than others.

So in other words, you're saying you don't know anything about it, you just made a choice to not use fancy cables because you didn't want to spend money on that. That is fine. But saying that in an internet forum doesn't really help anyone else make a decision... especially if they can afford fancy cables and want to know if that would be money well spent. They are looking for an indication one way or the other, not a personal decision based on not knowing much about it.

By the way, passing audio across is one of the easiest things that USB cables do. Digital audio is a fraction of the size and speed required of most things USB cables pass... files from hard drive to hard drive, HD video, etc. And audio is only required to keep a buffer full on the DAC side. That is even easier than real time streaming.

I'll wait until you are prepared to speak about your standards. Until then, I'll stick to the ones that make all of my digital audio devices audibly transparent to me.
 
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Dec 6, 2018 at 4:52 PM Post #1,478 of 1,606
So in other words, you're saying you don't know anything about it, you just made a choice to not use fancy cables because you didn't want to spend money on that. That is fine. But saying that in an internet forum doesn't really help anyone else make a decision... especially if they can afford fancy cables and want to know if that would be money well spent. They are looking for an indication one way or the other, not a personal decision based on not knowing much about it.

By the way, passing audio across is one of the easiest things that USB cables do. Digital audio is a fraction of the size and speed required of most things USB cables pass... files from hard drive to hard drive, HD video, etc. And audio is only required to keep a buffer full on the DAC side. That is even easier than real time streaming.

I'll wait until you are prepared to speak about your standards. Until then, I'll stick to the ones that make all of my digital audio devices audibly transparent to me.

HOLY CRAP! I ... I ... I ... agree ... with aaallll of this.
jawdrop.gif
 
Dec 6, 2018 at 5:55 PM Post #1,479 of 1,606
So in other words, you're saying you don't know anything about it... a personal decision based on not knowing much about it.

I have said I do not use fancy USB cables.because I do not think they are necessary. I am agreeing with you!

That is either a troll comment or an insult to my abilities as a professional designer of audio equipment. I have explained myself, and now you are trying to provoke. Do you have some kind of internet forum tourettes?
 
Dec 6, 2018 at 6:29 PM Post #1,481 of 1,606
I use fancy cables because I don’t function properly.
 
Dec 6, 2018 at 6:45 PM Post #1,482 of 1,606
I won't name other brands as deficient, as that would be unprofessional.

Are you a member of the trade? I'm always looking for a DAC or player that isn't audibly transparent. If you know of one, it wouldn't be unprofessional to mention it. In fact, it would be helpful!
 
Dec 6, 2018 at 6:50 PM Post #1,483 of 1,606
Are you a member of the trade? I'm always looking for a DAC or player that isn't audibly transparent. If you know of one, it wouldn't be unprofessional to mention it. In fact, it would be helpful!

You just asked a fellow member if he used different DACs which could have “colored” his subjective listening tests rotating in different USB cables. So which is it? All DACs the same or different? Get your own personal facts straight.
 
Dec 6, 2018 at 6:57 PM Post #1,484 of 1,606
You just asked a fellow member if he used different DACs which could have “colored” his subjective listening tests rotating in different USB cables. So which is it? All DACs the same or different? Get your own personal facts straight.

Happy to clear that up for you! Every DAC, DAP, amp and digital audio disc player that I've ever gotten has been audibly transparent, They all sound exactly the same- perfect. I'm looking for one that *isn't* audibly transparent- or in other words, colored. If anyone has one that doesn't sound just like every other, and they've gone to the trouble to carefully make sure of that for themselves, let me know. I'd like to borrow it to do some tests. No one has been able to provide me with one yet.

I have said I do not use fancy USB cables.because I do not think they are necessary. I am agreeing with you!

Sorry, I was reading your comment as meaning that USB cables may make a difference if someone has a higher standard, but you don't need that high of a standard yourself. The highest standard necessary for the purposes of listening to music in the home is audible transparency. In my book, the quest stops there. A professional sound engineer in a studio might need more, but regular people don't. To be honest, I doubt that a professional sound engineer would even need fancy USB cables. They wouldn't have RF problems like that.
 
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Dec 6, 2018 at 7:31 PM Post #1,485 of 1,606
Happy to clear that up for you! Every DAC, DAP, amp and digital audio disc player that I've ever gotten has been audibly transparent, They all sound exactly the same- perfect. I'm looking for one that *isn't* audibly transparent- or in other words, colored. If anyone has one that doesn't sound just like every other, and they've gone to the trouble to carefully make sure of that for themselves, let me know. I'd like to borrow it to do some tests. No one has been able to provide me with one yet.



Sorry, I was reading your comment as meaning that USB cables may make a difference if someone has a higher standard, but you don't need that high of a standard yourself. The highest standard necessary for the purposes of listening to music in the home is audible transparency. In my book, the quest stops there. A professional sound engineer in a studio might need more, but regular people don't. To be honest, I doubt that a professional sound engineer would even need fancy USB cables. They wouldn't have RF problems like that.

My IPods are on the flat side. The Cambridge Audio DACMagic Plus is cold, and my favorite Sony TA amp/DAC is warm. But..........I'm not sending em out anywhere. I'm sure they would graph out the same as they sound. Only seen graphs on the IPods. Also due to the construction the Sony 1Z and 1A sound very different, mainly due to the amplification probably? 1000s of posts about the difference.
 
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