I agree with this statement, but only for lets say budget and medium systems.
I know a guy who makes custom made premium DACs for >1k euro (1k are cheapest) and had several disscussions with him on this topic. I was not his buyer so he was not trying to sell me something.
He told me - good high end audio equipment (>5k euro for example) can be very very reveling and sensitive and this small twiks (powers cables, USB cables,...) do make small but audiable difference. But, he said, forget those things in systems <1k euro, you will not hear anything.
So, cannot say IME, but this makes sense for me.
Marantz SR6008 - KEF R100 - T series
Popcorm A-210 - PS3 - Panasonic 55ST50
He can say all he likes, it's not going to change the laws of physics or how data works ;) (tongue firmly in cheek by the way)
Hifi equipment is either audibly transparent or it isn't, with varying degrees of the latter, but at any rate this can be achieved at much less than 1K Euro. At this point, no amount of money is going to make the equipment sound any more transparent.
If differences become apparent in digital systems when cables are swapped over, then I would suggest that someting is wrong with either the equipment or cables. Even if you could show scientific data for minute discrepencies, you are gong to have a very hard job proven scientifically that you can hear them and subjective opinion or anecdotal evidence just doesn't cut it.
Mac mini > AVI ADM9Ts
Well I cannot argue on that as I didnt hear that difference, this is what I heard and in theory it make sense to me.
I am an electronical engeneer by education myself and must say that from my knowledge there should not be any difference in USB cables.
But I will not argue one way or the other until I sit down in front of a high end system, swap few USB cables and hear it for myself.
BTW there are people that is stating that all amp sounds the same, same as that mp3 128 and 24/96 res files sounds the same, but for this I know it is wrong as I can clearly hear the difference every day when I an listening at home. ;)
Even if you do side with those who believe that a USB cable can make a difference, I'm not really sure that your kit will necessarily be revealing enough for it to make a difference.
Observe the signature in its natural habitat.
The best thing to do is to ABX digital files, this is easy enough to do and takes away any subjective uncertainty on the matter.
Amps are a different topic and there are many reasons why amps differ in sound, though in purist terms they should sound the same unless designed to be different.
That is the sensible way to approach it.
Sonos Connect - Rotel RCD-965BX - Arcam irDac
Naim NAIT XS
Naim NAC A5 - Spendor SA-1
Rega EAR - AKG K450 - AKG K551
I am not sure 'electronical' is a word?
On the basis of your knowledge, I am sure you would agree that having a stable, clean, low impedance supply for a DAC is important. In the case of the O/P, his DAC is USB powered and therefore the supply comes down the USB cable along with the data.
Given there are those on this forum that hyperventilate over their mains cables, wouldn't you have thought that it mattered about the impedance and shielding of the USB cable that is carrying the power supply to the DAC?
I would imagine that if it mattered at all, then that's how the USB cables would be designed and a suitably constructed cable would come with the equipment. I would also imagine that USB cables in general conform to some specification and quality control criteria.
A lot of these points are moot anyway, as if a DAC is audibly transparent, any additional 'noise' is inaudible.
I'm guessing that the poster you quoted probably doesn't use English as his first language, so you might need to give them a break regarding spelling. How's your Deutsch for example?
Nur Schüler Deutsch.
I was not suggesting that the original cable could be bettered. I was just pointing out that if the cable was to be changed, then the new cable's electrical paramters may impact the sound as in this case the USB cable doesn't just carry data, but also the supply rails for the DAC.
If you want to test for yourself, I would recommend trying:
- Vertere D-Fi USB
- Clearer Audio Copper-Line mains cable (60 day trial period)
"Everything has been said before, but since nobody listens we have to keep going back and beginning all over again." André Gide
Yes, but my point being that all cables should conform to a specification and therefore have a minimum performance, USB cables being no exception. Obviously there will be some super cheap examples that are effectively dodgy knock offs.
All quality cables need to do is to carry a signal/s at specification, at and beyond this point, no differences should exist, if there are differences, the specification is not met somehow.
Also, any signal required by the USB device is limited by the bus design specification and this is the real limitation. The cable merely needs to meet this relatively low and simple demand.
I am not disagreeing with your theoretical points, just the level at which the issues would be apparent in a practical and every day implementation.
English is my 2nd language.
Nevertheless, I am sure that you understood what I ment.
Regarding powering DAC over USB influencing SQ - in theory yes, it could have an impact, but untill I listen it for myself cannot say does it make audiable difference of not.
What about this dac http://www.whathifi.com/review/cambridge-audio-dacmagic
Instead of the Epiphany acoustisc one?
I think i can get a used one (1 year) for half the retail price
Presonus 22vsl soundcard, Tc electronic level pilot and Yamaha HS8 with 40 mm foam between the speakers and my desk
I'm sure it would be fine, the DACmagic Plus was.
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