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Originally Posted by lisnalee /img/forum/go_quote.gif
The wadia arrived on sat and i have to say i'm very impressed with it so far.
I am definitely getting a lot more low end detail now, than i was when using optical from the mac.
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I took half an hour composing this reply so it wouldn't look terribly insulting or as a challenge to you, but I can't seem to make it sound as diplomatic as I feel. Another career that I need to avoid... Sorry. I hope you understand, I really want to know why you would observe what you have. perhaps you meant to say "low-level" detail and not "low-end" detail?
I'm not trying to "bust your chops here" with my post, but I really find this confusing. If you are using digital out from Mac vs digital out from Wadia, with the same source files and the same external DAC, I don't understand how that is possible to get more low-end detail. Not unless your optical cable out of Mac is dropping data bits vs the $30 coax which is not, which can happen because my understanding is that digital-audio is one-way and does not use checksums to guarantee bit perfect like with hard drive data and such.
But, I always thought your digital cable would have to be exceptionally bad for dropped data bits to happen. I would expect dropped data-bits to similarly decrease the resolution in the high-end more than the low-end. I would guess that since low freq are longer sound waves, that there are more data points captured at 44.1Khz and losing one or two data points to a cable should have less effect in the low-end vs high-end. I am not an expert, so I welcome anyone's feedback about this phenomenon.
Quote:
Originally Posted by lisnalee /img/forum/go_quote.gif
At the minute i'm using an old $30 ixos 75 ohm cable i had from years back. I was wondering if anyone has found an improvemnent in using a high end digital cable. I know there a lot of opinions of digital is digital and so there no difference but i'd hate for the cheap cable to be a bottle neck in the system.
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I'd be interested in knowing what others have found too. I have just started trying to do some comparisons with optical input into my Apogee mini-DAC with a generic $6 cable vs a $35 sysconcept.ca made optical cable, then switching to a $60 silver plated digital coax cable vs my $250 Synergistic Research Coax with active powered shielding to see if they make a difference - but it could take me a while, so in the meantime I'm all ears (pun intended). I will also look at unplugging the power to my Synergistic Research cable and plugging it back in to see if I hear a difference, but my understanding is the change with "power or not" will be more audible if I have a lot of electrical interference in my environment.
The problem with doing this digital cable test on the Apogee is that I can't turn up-sampling off, so it will be very hard hard to hear the changes. The Apogee sounds about the same with a 16/44.1 USB input as it does feeding it a 24/96 optical signal. I might have to do it with my Headroom Micro DAC instead, but I don't have a coax adapter to fit the Micro DAC 3.5 mm input.