Did anyone experience Audio Prism's Ground Control

The "glare" is actually the ground devices charging. It takes a number of charge and discharge cycles before they stabilize, no matter who makes them. The Ground Control devices show a pronounced slant to high frequencies and a distinct narrowing of sound stage at first. Over about a 3 hour period this "uptight" character will collapse into ever more detail and stage width and then squeeze back into the uptight character. Each cycle takes longer than the one before and when finished they are always wide, even and clear.

Tvad,

I had a similar effect with my EVS as well. Mine sounded bright and grainy compared to my AP's. Bud is absolutely correct on the permutations with the AP versions as I heard this effect clearly Friday night and Saturday after installing my next set of AP's. I bought 3 standard RCA's to place on my unused amp inputs, reference HT receiver and found they did just that. Now, they have stabalized. I have placed an order for 3 ref RCA's and 2 more standard RCA's to play with adding in tandem to my receiver to add some detail that seemed to spread out and also to my preamp and go from there.

Bud, how many cycles do you believe it takes to stabalize? I seem to get the final settle in around the 3rd day or so. 6 moons seemed to have the same effect, around 72 hours or so.

Odd

This sounds like an interesting product. But I am putting a 8' ground rod and connect it to the chassis of the preamp. Will my system still benefit from AP GC?