Author Topic: New USB Cable With Ground Lift Switch  (Read 621 times)

Offline stereosane

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New USB Cable With Ground Lift Switch
« on: November 27, 2017, 08:03:14 AM »

Offline chrisc

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Re: New USB Cable With Ground Lift Switch
« Reply #1 on: November 27, 2017, 08:19:25 AM »
Who would have thought?

Not difficult to construct one's self

Offline scrarfussi

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Re: New USB Cable With Ground Lift Switch
« Reply #2 on: November 28, 2017, 07:58:37 PM »
Who would have thought?

Not difficult to construct one's self
not on this level
suum cuique pulchrum est


"Then Said my heart here will i take my rest."

Offline adie

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Re: New USB Cable With Ground Lift Switch
« Reply #3 on: November 29, 2017, 03:47:58 PM »
Another option is Audiocadabra double headed usb cable (which I use).
Once handshake is done unplug one so just the data lead is connected. If your DAC requires both power and data to be connected, a battery is recommended.
According to 6 Moons it works a treat.
All I know is it's way better than bog standard stuff.

Offline chrisc

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Re: New USB Cable With Ground Lift Switch
« Reply #4 on: December 03, 2017, 08:36:16 AM »
You can get USB A and B plugs at Mantech, with a bit of careful soldering and some shrink-wrap it does not seem too onerous.  However, the double-headed USB cable is just as good and simpler in construction

Offline chrisc

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Re: New USB Cable With Ground Lift Switch
« Reply #5 on: December 03, 2017, 08:49:07 AM »
This USB A socket is under R6,00 from Mantech



I'll get a reasonable quality 3 metre USB2.0 A to B lead and re-work the two A sockets to achieve what is described in the Audiocadabra article and try it out.  The cost is minimal

Offline stereosane

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Re: New USB Cable With Ground Lift Switch
« Reply #6 on: December 03, 2017, 12:40:54 PM »
^^Please post your findings, I'm really interested to hear how it sounds  :thumbs: ^^

Offline 2wice

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Re: New USB Cable With Ground Lift Switch
« Reply #7 on: December 03, 2017, 12:51:09 PM »
Mantech also has some nice shielded 2 core coax that will work nice for this.
I use it for DAC's.

Offline chrisc

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Re: New USB Cable With Ground Lift Switch
« Reply #8 on: December 10, 2017, 09:22:59 AM »
Step 1 - get a 3m USB A to B cable
Step 2 - cut off the A plug and open it to determine the wiring colours used
Step 3 - cut off the A plugs on two old/unused USB cables, allowing a 20mm flying lead (one white plug and one black plug)
Step 4 - re-connect the black plug with its flying lead as the original was done, making sure to connect the shield and get the polarity correct, insulate as needed
Step 5 - connect the white plug, but leave out the +ve and -ve leads
Step 6 - tidy it up and apply shrinkwrap to clean up the appearance
Step 7 - see if it works

Offline Hi-Phibian

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Re: New USB Cable With Ground Lift Switch
« Reply #9 on: December 10, 2017, 09:56:54 AM »
Step 6.5.  Measure for short circuits.  Twice. 







[Anyone who thinks that wealth is measured in money is blind and narrow minded.  Wealth is obviously measured in turntables and records.]
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Offline chrisc

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Re: New USB Cable With Ground Lift Switch
« Reply #10 on: December 10, 2017, 11:09:57 AM »
Spoken like a true techie.  A tiny blob of solder, or a whisker of wire, the device won't work