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How to A/B Test Power Cables & Interconnects?

Looking for some advice. Here is the situation:

  • I am building out a new system (dCS Bartok > Parasound JC 2 BP > Parasound JC 5 > Floorstanding Speakers)
  • Equipment is on-hand. I am in the process of re-wiring the A/C circuit with two matching, 10awg home-runs (one for power Amp, one for sources)
  • I have the opportunity to try some high-end power cables and interconnects
  • I will invest in the cables if there is a discernible difference. I am somewhat skeptical.
  • I am trying to come up with a test protocol to determine what these higher end cables do. Everyone advises that I do A/B testing will listening to music. Of course I will do this.


My question:

Is there some more objective way to A/B test power cords and interconnects? I prefer to do this by listening,...not using lab equipment. How can I A/B measure system "blackness" or noise level?


Any advice appreciated. Thanks in advance.


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Showing 1 response by cleeds

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cleeds
5,694 posts
 
millercarbon
The risk of a ground loop comes in when you connect together components that are connected to different outlets.
No, a ground loop happens when there is a different voltage potential between two or more grounds. The number of or AC circuits used in a system is irrelevant. With the proper use of dedicated lines, the ground voltage potentials should be identical.

I’m confounded as to how anyone could think multiple dedicated lines could cause DC offset.
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