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In Reply to: RE: Are you trying to use the USB port on your laptop to POWER the DAC? posted by Ivan303 on October 30, 2014 at 17:35:06
It is a regular full DAC with power supply and 110 volt cord. Just a 15 foot USB Cable that works for other applications.Cut-Throat
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over to the Marantz NA7004 Network Audio Streamer in my main system.
I am using an Asus Tablet with keyboard and a known good 15 ft.. USB Cable. It put out some sound that was very faint and garbled. When I switched to the 1 ft. USB Cord, everything worked fine. - So, I think there are some limitations on USB Cord Length. They certainly seem to be more sensitive than Ethernet Cables.
Cut-Throat
There are tolerances for USB transmitters, USB cables and USB receivers. So long as the sum total of these margins is not exhausted the system will work reliably, otherwise there will be various errors, the extent depending on how far the margins have been exhausted. This is nature of digital communications: things are "perfect" up to a point and then start falling apart. If you want to know whether it was the cheap computer, the cheap USB cable or the cheap USB device that wasn't working right there is test equipment you could buy, but it could cost 100 times the equipment and cables you might want to test. A simpler solution is to avoid long cables and to junk equipment that doesn't work reliably with a bunch of other devices.
Tony Lauck
"Diversity is the law of nature; no two entities in this universe are uniform." - P.R. Sarkar
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