Did anyone experience Audio Prism's Ground Control

I made some these myself out of some thick zip cord. I found putting two speaker grounds on each binding ground posts of my amp and then putting two of these on each (Positive) binding posts of my speakers. This gave my system a more balanced and more Life-like sound! So I put two of these on the left ground binding post of my amp and two on the right ground binding post of my amp. Then I put two on the left ((Positive)) binding post of my speakers and two on the right ((Postive)) binding post of my speakers. I found out about the Diy speaker ground tweak here.. http://www.audiocircle.com/index.php?topic=87809.0

Scottmac62, for a way cheaper alternative to the Walker Links, try the Detail Magnifiers.
I just received a set of 4 (Bi-wire speakers).
So far , quite impressed.
See the thread I started about these.

According to my dealer, when I bought the Walker Reference + HDL's, the Detail Magnifiers sounded about the level of the older Walker mark II design. The current Walker Reference + model has far better parts and construction, triple processed cryo treatments, etc.

The Walkers along with the GC's are simply revelatory in my system. I have never heard it sound like it does now. Finally, it sounds like the many thousands I have invested in it should make it sound.

I would try both. With 30 day return privilege, it is worth the cost to try both out.

Oddeophile,
The Detail Magnifiers now claim to also use higher grade parts and wire/spades.

Here is from the website.

"Our latest design uses much higher quality parts than the original and sounds much better! It has silver spades, WBT silver solder and solid silver annealed wire with a clear teflon cover as pictured above. What you can't see is the new better 10 section PPFX Multicap and better resistor being used! "

Of course a direct comparison between the Walkers and the Detail Magnifiers would be very useful.
But, there is almost a 6x cost difference in the 2 products.

I have standard GCs on the Duevel Bella Lunas driven by Wavac EC300-B and have now added a RCA Reference GC to the AudioAero Capitole SE which already had an Acoustic Revive RGC-24.

Amazingly! the two devices are compatible and reinforce each other in terms of blackness and separation. If anything, the soundstage has become more physical, i.e. individual instruments have additional specificity in lateral and horizontal space. There is also additional detail e.g. in reed rasping of clarinets or saxophones and decay of cymbals. When disconnecting the AR device, the shrinking of the soundstage noted by others when using the reference GC is clearly evident.

I guess there is a lot more to grounding and much of it is experimental