Computer Audio Asylum

Posted by Gordon Rankin (M) on February 22, 2008 at 08:39:51

In Reply to: RE: USB isolation hub (Gordon, audioengr, John - input wanted) posted by pryamomimo on February 22, 2008 at 07:59:59

Pry,

You would be better off with an opticis cable and a better power supply.

First using a 5M cable into a hub is not a good idea. A better one would be too use a a 3m then hub then 2m. But even then it's not a good idea and the ground imbalance between the computer and the dac is going to have real issues.

You need to have the computer, dac and stereo on the same ground potential and to do that you usually need to be on the same circuit.

The opticis is optically isolated. The power supply they send is crap but there are other solutions for that.

Thanks
Gordon
J. Gordon Rankin

• RE: USB isolation hub (Gordon, audioengr, John - input wanted) - ob2 21:00:49 03/01/08 (0)
  In Reply to: RE: USB isolation hub (Gordon, audioengr, John - input wanted) posted by Gordon Rankin on February 22, 2008 at 08:39:51

  Opticis is very effective and I like it a lot. Please power it with battery. If you are using some battery pack with universal voltage output, please make sure that it is linear regulated DC output. I read one post here with negative feedback using Opticis. He uses a universal voltage battery pack. I suspect the DC-DC converter is switch mode converter for high energy efficiency which is very noisy.
  
  
  

  ---

---

[ Follow Ups ] [ Post Followup ] Thread: [ Display  All  Email ] [ Computer Audio Asylum ]
[ Comment ] [ Edit ] [ Delete ] [ Copyright Warning! Click for Details ]

---

[ Top of Page ] [ Contact Us ] [ Support/Wish List ] [ Copyright © 2008, Audio Asylum, all rights reserved ]

---

[ General ] [ Speakers ] [ Tubes ] [ Vinyl ] [ Digital ] [ Hi-Rez ] [ Video Asylum ] [ Cables ] [ Tweaks/DIY ] [ Music ] [ Films ]

---