[geeks] ground loop isolators

[Shannon Hendrix]

Does anyone know if there is significant difference between one ground  
loop isolator and another.

For example, is there really a notable difference between a $15  
Scosche and a $40 Xitec?

I used a Scosche RCA isolator to break a ground loop in my computer  
sound system caused by the Mac Pro, speaker system, and Windows box  
being on different UPS circuits.

My UPS provides 3 isolated circuits, which is great except for the  
induced ground loop.

It was easier to get a GLI and put it in-line coming out of the Mac  
Pro to kill the loop than to rewire all of the power to come from a  
single UPS circuit.

Anyway, I was just wondering if anyone knew of a significant  
difference between units.

I have not tested extensively yet, but it seems that the GLI has  
improved the sound.

A lot of people told me it would hurt the sound, but it seems to me  
that the hum was killing bass and treble signals more than the GLI is.

Anyway, I'm pretty happy that the loop was easy to kill by just  
isolating one computer's output.



-- 
"Where some they sell their dreams for small desires."