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RE: Seperate Type "A" connections on USB cables makes a big difference.

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chopper87@aol.com

In Reply to: RE: Seperate Type "A" connections on USB cables makes a big difference. posted by ted_b on September 01, 2011 at 18:27:09

Ted_B,

I'm not at all clear on the concept where both independent Type "A" connections, 5v/Ground and Data + & - are connected to two computer USB inputs, then the power and ground connection can be removed yet the DAC continues functioning?

This is a rather unusual concept in actual functionality is it not?

"Start ones car and then remove the battery"

That aside (and I'm going to try it), My seperated LA002 really has stepped up several notches sonically.

Seperating the cables was trickier in actuality than I had thought it would be. It seems that too large a wire gauge and or too large a solid wire gauge may cause issues with USB cables.

I will be building one more dual Type A connector UsB cable that I have my design eye on ASAP. I doubt that it will outperform the LA002 Plus.

Lance A.

Lance

Follow Ups:

"Start ones car and then remove the battery" - Tweekeng 20:35:20 09/01/11 (2)
Cars run fine if you remove the battery after you start it. It gets it's power from the alternator. But you will find that the headlights may dim when idling...

Anyway I know you all can hear things I can not but this one really takes it.

The power to each individual USB port is common inside the computer. That is it all comes from the exact same voltage source and are only separated by one switching transistor each. That transistor is probably even inside the one single USB chip that drives all the USB ports.
- RE: "Start ones car and then remove the battery" - ted_b 21:31:53 09/01/11 (1)
  Tweekeng, What is the point you are making? In my example, if we don't have to have power coursing down one of the cables (and the other one is signal only) then wouldn't that be a likely sonic advantage? And a slightly lesser advantage (especially if you need power) is to have each of these functions (signal and power) separated by shields AND cables, rather than stick them in one cable and hope the shielding works?
  - Video Analogy - fmak 03:23:38 09/02/11 (0)
    'separated by shields AND cables, rather than stick them in one cable and hope the shielding works?'
    
    For me, a good analogy is the visual character of hdmi cables. With the same connection, hires video (1080i) looks very different from cable to cable. I am trying a Belkin Pure AV flat that, for some reason, requires colour to be turned down by 2 notches and contrast by 1, compared to my 'best so far' flat cable. Sound is also somewhat clearer from my TV's built in speaker. However, resolution of fine details seem better.
    
    If you can see something so easily, there is no reason why you can't hear it.

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