[CodeToad]

Setup: Audigy 2 ZS > the stock Little Dot mini to rca cable > Little Dot MK III > HD650

When I plug the 650 into the sound card directly I get no noise when I turn up the volume with nothing playing.

When I plug the 650's into the MK III and disconnect the source cable I get no noise.

When I connect 650's into MK III and the MK III into the sound card with nothing playing....when I turn up the volume knob on the MK III (with the volume all the way up or down in the computer side...no difference) I get what sounds like interference (fan or electric motor noise).

What do I need to do to get rid of the noise?

 

[breakfastchef]

Without having actually having used your particular setup, I would suspect you are getting some noise from the computer - fan or other compenent. Do you have another component - like a cd palyer or turntable - you could test with the MKIII? This would help you identify if the problem is with interferece with your computer or another anomaly.

 

[Enthusia]

The Little Dot MKIII is known to have a ground loop issue, just buy a ground loop isolator and that should fix the problem.

 

[CodeToad]

It sounds like fan noise to me...like motor. Would a shielded cable help?

 

[CodeToad]

Ah. Plugged in my portable and laid it behind the puter...no noise...ground loop problem?

 

[CodeToad]

Went to Walmart and picked up a 3 pack of SooperLoop Isolators with pure Rhodium tangs and nano-cryo intertransports and super ferrite triple dieletric shielding for a buck fifty. That fixed it.